Power MOSFET Drivers
Products (720+)
TPS22995RZGR - 3.8A, 5.5V Load Switch 18mΩ | TI
The Texas Instruments TPS22995RZGR is a single-channel N-channel high-side load switch with a maximum continuous current of 3.8 A, a typical on-resistance of 18 mΩ, and an input operating voltage range of 0.4 V to 5.5 V, housed in a 6-pin WQFN-HR (RZG) package measuring just 1.5 mm x 0.75 mm. A load switch is a type of power distribution switch, which itself sits within the broader power management IC hierarchy. Load switches use an integrated MOSFET pass element controlled by a logic input to connect or disconnect a power rail from its load, enabling power sequencing, rail gating, and inrush-current control in multi-rail systems. The TPS22995 implements this function with a low-resistance N-channel MOSFET that reduces dropout voltage for low-voltage, high-current rails. Key features include the 0.4 V to 5.5 V VIN range, a separate bias supply (VBIAS) operating from 1.5 V to 5.5 V that fully enhances the N-channel MOSFET even at very low input voltages, and adjustable output slew-rate control through an external capacitor on the CT pin. The adjustable rise time enables precise power-on sequencing and limits inrush current during startup, protecting upstream regulators and connectors. Technically, the device achieves its 18 mΩ typical on-resistance by driving the N-channel pass transistor gate above the input rail using the bias supply. This architecture yields very low voltage drop at multi-ampere loads, minimizing power loss (I²R) and thermal stress. Typical on-resistance keeps dissipation low: at 3.8 A the conduction loss is only about 0.26 W (Estimated: I²R = 3.8² x 0.018). Typical applications include power rail gating in battery-powered portable electronics, SSD and storage peripherals, micro-IoT hardware with limited PCB real estate, and industrial point-of-load distribution where a small, low-loss switch is required. When designing with this device, always provide the VBIAS supply (1.5 V to 5.5 V) with local decoupling, and size the CT capacitor to set the rise time appropriate for the load capacitance to control inrush current. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
TPS22997QRYZRQ1 - 10A, 5.5V Load Switch | Texas Instruments
The Texas Instruments TPS22997QRYZRQ1 is an AEC-Q100 qualified single-channel automotive load switch delivering up to 10A continuous current over an input voltage range of 0.1V to 5.5V, with a bias supply of 1.5V to 5.5V. It integrates an N-channel MOSFET with a typical on-resistance of only 4 mΩ in a compact 10-pin WQFN-HR (RYZ) package measuring just 1.5 mm x 2 mm. A load switch is a power management IC that gates a power rail on and off using an integrated MOSFET controlled by a logic-level enable pin. In the power management hierarchy, load switches sit between the power source (a DC-DC converter or LDO) and the load, providing controlled power-up sequencing, inrush limiting, rail isolation, and fault protection that raw converters do not offer. Key features include adjustable slew-rate control to minimize inrush current during turn-on, an adjustable quick output discharge (QOD) pin that actively pulls the output low when disabled, and a power-good output for rail monitoring and sequencing. The ON pin can interface directly with low-voltage GPIO signals. Thermal shutdown and low quiescent power consumption round out the feature set. Technically, the 4 mΩ RON translates to only 40 mV of drop at 10A and just 0.4W of conduction loss, eliminating the need for a heatsink. The configurable rise time allows designers to trade startup time against inrush current to protect upstream regulators and downstream capacitors. Typical applications include automotive ADAS processor and FPGA power sequencing, infotainment rail gating, sensor module power control, and battery-connected load management in 5V and sub-5V systems. The Q1 qualification supports all AEC-Q100 automotive ambient temperature grades. Design tip: use the CT pin capacitor to set slew rate so that inrush into large downstream bulk capacitance stays within the upstream supply current limit, and verify bias voltage is present before asserting ON.
TPS22997RYZR - 5.5V 10A 4mOhm Load Switch | Texas Instruments
The Texas Instruments TPS22997RYZR is a single-channel load switch with an integrated N-channel MOSFET, operating over an input voltage range of 0.1 V to 5.5 V and supporting a maximum continuous current of 10 A, with a typical on-resistance of 4 mOhm. It is housed in a compact 10-WQFN-HR (1.5x2 mm) package designed for space-constrained, high-current power distribution. A load switch is a semiconductor device that connects or disconnects a power supply rail from a load, functioning as an electronic switch. It typically integrates a pass MOSFET, gate-drive control logic, and protection features such as thermal shutdown and inrush management. Load switches sit within the power management IC hierarchy alongside hot-swap controllers and eFuses, and are essential for power gating, rail sequencing, and protection in systems from smartphones to industrial equipment. Key features include adjustable slew rate control to minimize inrush current during turn-on, adjustable quick output discharge (QOD) for rapid discharge of output capacitance, and a power good (PG) signal for rail monitoring. The enable pin (ON) interfaces directly with low-voltage GPIO signals, and the device offers thermal shutdown protection and low power consumption. The bias voltage range of 1.5 V to 5.5 V ensures compatibility with standard logic levels in mixed-voltage systems. Technically, the TPS22997 integrates a very low on-resistance N-channel MOSFET, achieving 4 mOhm typical RON, which minimizes voltage drop and conduction loss - critical at 10 A loads where even milliohms matter (4 mOhm x 10 A = 40 mV drop and 0.4 W dissipation). The configurable rise time allows designers to tailor inrush current to upstream supply capability and load capacitance, reducing supply droop and board stress. Typical applications include power distribution in SSDs, smartphones, tablets, and other portable and battery-powered devices, as well as hot-swap and load-switching functions in industrial systems. The low RON and high current capability suit high-current low-voltage rails, while the tiny 1.5x2 mm footprint saves board space. When designing with the TPS22997, provide adequate PCB copper area for thermal dissipation at full 10 A load, place decoupling capacitors close to VIN and VBIAS, and set the slew rate to balance inrush current against turn-on delay for the specific load capacitance.
TPS2370D - IEEE 802.3af PoE Power Interface Switch | TI
Texas Instruments TPS2370D is an IEEE 802.3af Power-over-Ethernet power interface switch for powered devices, presented in an 8-pin SOIC package. It integrates the input protection and power-signaling functions needed to connect a PoE powered device to compliant Ethernet infrastructure. The device is intended for 12.5 W-class PoE systems and helps separate the low-power Ethernet data path from the higher-voltage power path before downstream DC/DC conversion. A PoE power interface switch is the bridge between an Ethernet cable and a powered-device power supply. Ethernet carries data and power on the same cable, so the powered device must identify the available power source, control the connection, and protect the interface before accepting power. The TPS2370D is designed around IEEE 802.3af-compatible PoE powered-device behavior and is suitable for IP phones, wireless access points, surveillance equipment, and other network peripherals. The manufacturer product page identifies TPS2370 as an IEEE 802.3af power interface switch for PoE powered devices. Distributor listings identify TPS2370D as an 8-SOIC device. The verified data does not provide a complete electrical table, so ratings such as input voltage range, current limit, channel timing, protection thresholds, and temperature limits must be taken directly from the manufacturer datasheet before final design release. Those unprovided values are intentionally not inferred here. The TPS2370D belongs to the PoE interface-controller category, which sits between Ethernet connectivity and downstream power management. It is not a general-purpose voltage regulator or a DC/DC converter. A typical design uses the device at the Ethernet connector or PoE input, then passes the selected power to a DC/DC converter that creates the low-voltage rails required by the powered device. For a new PoE design, verify connector pinout, cable polarity protection, isolation requirements, thermal performance, and the IEEE 802.3af power-class limits against the current TI documentation. The D suffix denotes the verified 8-SOIC ordering variant, while package-specific land patterns and exposed-pad details must be confirmed from the package drawing rather than inferred from generic SOIC drawings. This product page consolidates the verified manufacturer identification, package information, distributor data, and cross-reference findings. It deliberately distinguishes confirmed facts from parameters requiring the datasheet, which helps engineers evaluate sourcing without treating unverified electrical claims as design data.
TPS2370DR - IEEE 802.3af PoE Power Interface Switch | Texas Instruments
The Texas Instruments TPS2370DR is an IEEE 802.3af power interface switch for Power over Ethernet powered devices, supplied in an 8-pin SOIC package. The verified listing identifies its role as a PoE power-interface switch, while the available data does not specify its operating voltage, current, protection thresholds, temperature range, or exact electrical limits. A PoE power interface switch is the component that connects a powered device to the power delivered through an Ethernet cable. It sits in the power path after cable-side network isolation and helps a powered device receive or reject power according to the Ethernet PoE system. In this product family, the TPS2370 is specifically identified as an IEEE 802.3af power interface switch for PoE powered devices. The principal verified feature is IEEE 802.3af compatibility. This standard is associated with 10/100/1000BASE-T Ethernet applications and defines the framework for supplying power over standard Ethernet cabling. The TPS2370DR therefore targets networking equipment that needs a dedicated PoE interface rather than a general-purpose voltage regulator or conventional power switch. The TPS2370DR uses Texas Instruments’ DR package designation, identified in the supplied results as an 8-SOIC or SOP8 package. Surface-mount construction supports compact PCB layouts, while the eight-pin package leaves the device easy to inspect and replace during manufacturing. The verified distributor information also classifies it as a specialized interface IC and power-supply support circuit. Typical application areas include PoE-powered network cameras, VoIP phones, wireless access points, Ethernet switches, and other powered devices connected through Ethernet infrastructure. The exact power budget, current handling, protection behavior, and thermal performance must be confirmed from the manufacturer datasheet before final circuit design. This page preserves the verified product identity and distinguishes it from functionally similar, but not necessarily pin-compatible, alternatives.
TPS2370PW - IEEE 802.3af PoE PD Interface, 8-TSSOP | Texas Instruments
The Texas Instruments TPS2370PW is an IEEE 802.3af-compliant Power Interface Switch for Power-over-Ethernet (PoE) Powered Devices (PDs), integrating detection, classification, inrush current limiting, and a 0.3-ohm internal pass FET into a single 8-pin TSSOP (PW) package. It acts as the interface between the Power Sourcing Equipment (PSE) and the powered device, performing all functions required by the IEEE 802.3af standard. The device supports input voltages up to 67 V from the Ethernet cable and includes a 100 V rated internal switch. A PoE PD controller is a specialized power management integrated circuit that handles the front-end handshake between a PoE-enabled switch (PSE) and the device receiving power (PD). It detects a valid 25 kohm signature resistor, classifies the PD into one of five power classes (0-4) under the IEEE 802.3af spec, controls inrush current with a soft-start mechanism, and finally applies power through an integrated low-RDS(on) MOSFET. The TPS2370 occupies the power management IC hierarchy between simple hot-swap controllers and full PoE+ (802.3at) Type 2 controllers, representing the original-generation 802.3af building block. Key features include a 0.3-ohm internal pass MOSFET, programmable inrush current limiting, integrated detection signature circuitry, automatic classification signature generation, and an open-drain power-good output indicator. The 8-pin TSSOP package enables compact front-end designs for IP phones, wireless access points, and security cameras where PCB real estate is at a premium. The device operates from the 48 V nominal PoE rail but tolerates transients consistent with cable discharge events. The architecture uses a precision bandgap reference and comparators to implement the IEEE 802.3af detection signature (25 kohm equivalent resistance), and a current-mode control loop for inrush limiting. Once classification completes, the internal 100 V N-channel MOSFET is fully enhanced, minimizing DC losses. Logic-level interfaces provide ground-referred status and enable signals for downstream DC-DC converters. Typical applications include VoIP phones, wireless access points (Wi-Fi APs), IP security cameras, RFID readers, and any low-power 802.3af-compliant PD that derives its primary supply from a PoE line. Industrial sensors and building automation endpoints also benefit from single-cable power-and-data deployment enabled by this controller. When designing with this part, follow IEEE 802.3af detection and classification timing budgets closely; bypass the device with a TVS diode for cable discharge protection, and select the input bulk capacitor and inrush timing components per the datasheet's typical application circuit to avoid re-triggering detection during power-up. This page synthesizes distributor availability, drop-in alternatives to other 8-pin TSSOP PoE PD controllers, and practical layout considerations that go beyond the datasheet's typical application drawings.
TPS2370PWG4 - IEEE 802.3af PoE PD Power Interface Switch | TI
The Texas Instruments TPS2370PWG4 is an IEEE 802.3af-compliant Power-over-Ethernet (PoE) Powered Device (PD) interface switch integrating detection, classification, inrush current limiting, and a 0.3-ohm internal pass FET in a single 8-pin TSSOP package. It operates across the standard 48V PoE supply rail, performs the four-quadrant detection signature required by IEEE 802.3af, and delivers up to 13 W of available PD power through a programmable inrush current limit rather than relying solely on the 400 mA / 50 ms default limit. A Power-over-Ethernet PD controller is a specialized power management IC that sits between an Ethernet RJ-45 connector and a downstream DC-DC converter, presenting the standardized 25 kohm detection signature, the 4-step classification current, and the inrush/turn-on behavior mandated by IEEE 802.3af. In the broader taxonomy, the TPS2370 sits under Power Management IC -> Hot Swap / Power Interface Switch -> PoE PD Controller. It off-loads the thermal stress of the hot-swap FET to an internal MOSFET while exposing only a few pins to the system designer. Key features include the integrated 0.3-ohm MOSFET that eliminates an external switch, a programmable inrush current limit that lifts the ~180 uF cap-size restriction of the bare IEEE 802.3af timing, open-drain PG (power good) and PG_OFF flags for sequencing downstream converters, and an adjustable UVLO for non-standard PoE inputs. The TSSOP-8 footprint keeps the solution under 5 x 7 mm of board area, which is important for compact IP phones, wireless access points, and small surveillance cameras. Architecturally the TPS2370 combines a precision 25 kohm detection resistor network (internal), a class-current reference, a gate-charge-pumped 100 V-rated internal MOSFET, and a thermal shutdown block. Compared with discrete implementations using a hot-swap controller plus a FET plus a sense resistor, the integration reduces BOM cost by typically three parts and improves accuracy because the detection signature tracks the internal FET's on-resistance instead of an external resistor pair. Typical applications include IP phones, wireless access points, IP security cameras, IoT gateways, and any 802.3af-powered sensor or access device where a single Ethernet cable must supply both data and power. The device is also widely used as a front-end for non-PoE products that benefit from the integrated inrush and isolation coordination. When designing with the TPS2370PWG4, treat VDD-VSS as the PoE input rail directly and place the input capacitance close to those pins; downstream of the TPS2370 the rail goes to a DC-DC converter that produces the final logic voltage. The PG output can be used to enable the downstream converter only after the bulk capacitor has fully charged, eliminating the start-up overshoot common to PoE loads. This page synthesizes distributor pricing, drop-in alternatives, PoE compliance design notes, and pin-level sequencing guidance not collected in a single place in the manufacturer datasheet, giving design and procurement engineers a one-pass reference.
TPS2370PWR - IEEE 802.3af PoE PD Interface Switch | Texas Instruments
The Texas Instruments TPS2370PWR is an IEEE 802.3af Power Interface Switch for Power-over-Ethernet (PoE) Powered Devices (PD), integrating detection, classification, inrush current limiting and pass-FET control in an 8-pin TSSOP (PW) package. The part implements the physical-layer PD interface between the Ethernet RJ-45 and the downstream DC-DC converter, supporting the full 802.3af handshake with an internal 0.3-ohm low-side N-channel FET and a 100 V abs-max VPD input rating. A PoE Powered Device Controller is a specialized interface IC that sits between the Power Sourcing Equipment (PSE) on the Ethernet switch and the application load. It performs the signature resistance, power classification (Class 0-4) and inrush-limited hot-swap turn-on mandated by IEEE 802.3af, then hands a regulated bulk rail to a downstream DC-DC converter. Within the broader Power-over-Ethernet taxonomy, the TPS2370PWR belongs to the PD controller category, which complements PSE controllers and DC-DC converters to form a complete PoE end-to-end solution. Key features include 0.3-ohm internal FET on-resistance for low conduction loss, 100 V maximum input voltage on VPD for surge margin, integrated IEEE 802.3af detection signature (24.9 kohm) and classification current sourcing, programmable inrush current limiting via an external gate capacitor, and a complementary open-drain PG (power-good) output for sequencing the downstream converter. Above 20 V input the classification current is shut off to reduce internal dissipation, and an internal undervoltage lockout prevents turn-on below the 802.3af minimum operate voltage. The architecture combines a precision bandgap reference, current-mode signature generation and a gated low-side MOSFET driver. By driving only the return-side FET, the TPS2370PWR allows the upstream PSE to maintain the PoE pair-to-pair voltage regardless of PD load transients. The 8-pin TSSOP body keeps the thermal path short, and the device is rated for the industrial -40C to +85C operating range required for outdoor and industrial Power-over-Ethernet endpoints. Typical applications include VoIP telephones, wireless LAN access points, IP security cameras, IoT gateways and industrial sensors that draw their power from the Ethernet cable rather than a separate wall adapter. Placing the TPS2370PWR upstream of a wide-input DC-DC converter is the canonical architecture for any 802.3af-compliant PD. When designing with this part, ensure the inrush gate capacitor is sized for the downstream bulk capacitance to keep inrush current within the 802.3af limit, and verify the transformer bridge is 802.3af compliant with the required center-tap connection. A TVS diode on VPD is strongly recommended for surge robustness above the 100 V abs-max. This page synthesizes distributor pricing, same-brand and cross-brand drop-in alternatives, and practical PoE design notes not found on a single manufacturer page.
TPS2371PW - PoE PD Power Interface Switch, IEEE 802.3af | TI
The Texas Instruments TPS2371PW is a legacy/IEEE 802.3af-compatible Power-over-Ethernet (PoE) Powered Device (PD) power interface switch, integrating the input detection, classification, and inrush control functions required by the 802.3af standard. It packages a 100 V-rated internal low-side pass FET (return-side switch) in an 8-pin TSSOP (PW) footprint. A PoE PD interface controller is a specialized power management IC that handles the negotiation and power-path startup between a Power Sourcing Equipment (PSE) and a powered load. The TPS2371 sits between the Ethernet RJ-45 magnetics and the DC-DC converter that follows it, performing signature detection (25 kΩ resistor presentation), classification (one of Class 0-4 current signatures), and inrush-limited turn-on of the bulk input capacitor. This functional block sits within the broader power management IC hierarchy, which includes voltage regulators, supervisors, and DC-DC converters. Key features include 100 V absolute maximum input voltage on the VDD pin, programmable inrush current limiting via an external resistor, automatic classification current shutoff above 20 V to reduce internal dissipation, and support for both current- and voltage-mode classification schemes. The internal N-channel FET has a typical on-resistance of 1 Ω and supports continuous currents up to 0.5 A at the return side, with transient capability to 1.5 A. The TPS2371 is designed to operate from a single twisted-pair or 4-pair Ethernet input. The low-side (return-side) topology allows the upstream DC-DC converter to use a non-isolated buck or a flyback configuration tied to chassis ground. Internal protection includes thermal shutdown, input undervoltage lockout, and a 100 V surge-tolerant drain connection. Typical applications include 802.3af-compliant PoE PD endpoints such as wireless access points, VoIP phones, IP cameras, IoT sensors, and low-power industrial Ethernet nodes. Designers benefit from a reduced BOM by eliminating external pass-MOSFETs and discrete signature resistors, while the TSSOP-8 package supports automated assembly. When designing with this part, ensure the upstream Ethernet physical layer (PHY) magnetics provide the proper center-tap injection point to the VDD pin, and verify that the downstream DC-DC startup current draw does not exceed the configured inrush limit. The 8-pin TSSOP (PW) is a thermally enhanced package but still requires adequate copper pour for sustained high-current operation.
TPS2371PWR - Legacy PoE Power Interface Switch | TI
The Texas Instruments TPS2371PWR is a legacy IEEE 802.3af-compatible power interface switch for Power over Ethernet powered devices, with programmable inrush current limiting and an 8-pin TSSOP package. It is designed for PoE PD applications requiring controlled power admission, input protection, and startup behavior. A power interface switch is an integrated semiconductor that sits between a PoE source and the powered equipment. It controls how power is applied to the downstream circuit, helping prevent excessive startup current, protecting source equipment, and defining the operating conditions seen by the load. In the broader power-management hierarchy, this device belongs to the PoE interface-switch and power-management IC category rather than a conventional voltage regulator. The verified manufacturer information identifies the TPS2371 as a legacy IEEE 802.3af-compatible power interface switch for PoE PDs. The datasheet search result also states that IEEE 802.3af permits an inrush current of 400 mA for 50 ms, limiting the load capacitor to approximately 180 µF. The programmable inrush current limit removes that restriction and permits a larger capacitor with lower startup current. The key design trade-off is between fast startup and controlled power admission. A lower programmed inrush limit can reduce stress on the PoE source and downstream components but may lengthen startup, while a higher limit can start a larger load more quickly but places greater transient demand on the source. The device is intended to simplify legacy PoE PD power-interface designs while preserving the external 8-TSSOP footprint. Typical applications include legacy PoE powered devices, powered Ethernet endpoints, IP cameras, VoIP phones, access-point equipment, and other IEEE 802.3af-compatible PDs. The part should be selected only after checking the source's PoE classification, available power, startup timing, protection requirements, and downstream capacitance against the complete manufacturer datasheet. For implementation, follow the manufacturer application guidance for input capacitance, current-limit programming, surge protection, layout, and exposed-pad or thermal requirements where applicable. Do not infer ratings, thresholds, or timing values from distributor descriptions alone; verify them in the official TPS2371 datasheet before releasing a production design. This page consolidates verified manufacturer and distributor descriptions, separates documented facts from unavailable parameters, and provides engineering guidance for comparing this legacy PoE interface switch with possible replacements.
TPS2372-3RGWT - 802.3bt PoE PD Controller 60W | Texas Instruments
The Texas Instruments TPS2372-3RGWT is an IEEE 802.3at and IEEE 802.3bt high-power Power over Ethernet (PoE) powered device (PD) interface controller supporting up to 60 W (Type 3) in a 20-pin VQFN (RGW) 5x5 mm package. A PoE PD interface controller is the front-end power management IC that resides in the powered device of a PoE system. It performs detection, classification, inrush current limiting, and disconnect identification, then hands off power to an isolated or non-isolated DC-DC converter. It sits at the top of the PoE power hierarchy: PoE PD controller -> PoE power interface IC -> power management IC -> semiconductor. Key features include support for IEEE 802.3at (Type 2) and IEEE 802.3bt (Type 1-4) classes, Automatic MPS (Maintain Power Signature) that reduces standby power in battery-backed applications, and Autoclass that enables downstream converters to lower power losses. Protection circuits cover undervoltage lockout, overcurrent, and thermal shutdown. PGOOD status indication allows clean sequencing of the downstream converter. The TPS2372-3 variant is optimized for 60 W applications with low internal switch resistance, while the TPS2372-4 variant supports up to 90 W Type 4 designs. According to the Texas Instruments product page, the TPS2372 family contains all features needed to implement an IEEE 802.3at or 802.3bt (draft) Type 1-4 powered device. Detection and classification compliance ensures interoperability with all standard PSE (power sourcing equipment) vendors. Typical applications include LED lighting fixtures, IP security cameras, wireless access points, 5G small cells, VoIP telephones, and network switches. Its wide input tolerance (0 V to 57 V per distributor data) and integrated pass transistor reduce bill-of-materials count versus discrete MOSFET solutions. For design, budget the inrush current limit against downstream converter input capacitance, and use the PGOOD output to enable the converter only after PoE handshake completes. This page adds distributor pricing, drop-in alternatives, and practical design notes beyond the manufacturer datasheet.
TPS2372-4RGWT - IEEE 802.3bt PoE PD Controller 90W | TI
The Texas Instruments TPS2372-4RGWT is a 1-channel IEEE 802.3bt (Type 1-4) Power over Ethernet powered-device (PD) interface controller supporting up to 90 W, with an integrated low-RDS(on) internal pass switch, supplied from 0 V to 57 V in a 20-pin VQFN (5x5 mm) package with exposed pad. A PoE PD controller is the front-end power-management IC that resides inside a powered device such as an IP camera, wireless access point, or LED luminaire. It performs detection, classification, and inrush-current limiting so the power-sourcing equipment (PSE) in the network switch can safely identify and power the device over the Ethernet cable. Within the power-management hierarchy, it sits between the RJ45 magnetics/diode bridge and the isolated DC-DC converter that generates the system rails. Key features of the TPS2372-4 include support for IEEE 802.3at (PoE+) and 802.3bt draft Type 1-4 power classes, Automatic MPS to maintain power through low-load periods, and Autoclass for accurate power allocation reporting to the PSE. The -4 variant's low internal switch resistance enables full 90 W Type 4 operation, while the related TPS2372-3 supports up to 60 W. Technically, the device integrates the detection and classification signature resistors, a hot-swap MOSFET with current limiting, thermal protection, and fault supervision. The low switch resistance minimizes conduction losses at the multi-ampere input currents demanded by Type 3 and Type 4 systems, improving overall efficiency and reducing heatsinking requirements. Typical applications include 802.3bt high-power LED lighting, 5G small cells and wireless access points, PTZ IP security cameras, and industrial networked devices where a single Ethernet cable delivers both data and up to 90 W of power. When designing, place the IEEE signature components (the 24.9 k-ohm detection resistor and classification resistors) directly at the VDD/RTN pins, and verify the inrush and operating current limits against your isolated converter's input capacitance to avoid nuisance tripping during startup. This page synthesizes distributor availability, same-package drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
TPS23730RMTR - 802.3bt PoE PD Controller 60W | Texas Instruments
The Texas Instruments TPS23730RMTR is an IEEE 802.3bt Type 3 (Class 1-6) Power over Ethernet powered-device (PD) controller with an integrated high-efficiency current-mode DC-DC controller, supplied in a 45-pin VQFN (RMT) package measuring 7x5 mm and rated from -40C to +125C. It integrates a robust 100-V, 0.3-ohm (typ) hotswap MOSFET and supports power levels up to 60 W, and is EA Gen 2 logo-ready as a PoE 2 PD controller. A PoE PD controller is the interface IC that negotiates power with a Power Sourcing Equipment (PSE) port, performs detection, classification, and inrush current limiting, then hands off to a DC-DC converter that produces the equipment's usable rails. Within the power-management hierarchy it spans both the PoE interface layer and the switching-regulator control layer, replacing the two-chip discrete solutions used in earlier 802.3at designs. Key differentiating features include complete single-chip 802.3bt Type 3 compliance for Class 1-6 power levels, an allocated power indicator output, support for parallel or split power operation, and a current-mode controller optimized for both flyback and active-clamp forward (ACF) topologies. The integrated 100-V hotswap MOSFET with 0.3-ohm on-resistance removes an external pass device, reducing BOM count and conduction losses at multi-amp input currents. On the technical side, the DC-DC controller section supports high-efficiency isolated and non-isolated conversions from the 48-V PoE rail, with current-mode control providing inherent cycle-by-cycle current limiting and simple loop compensation. EA Gen 2 (PoE 2) readiness means the TPS23730 passes certification requirements for next-generation high-power PoE deployments, supporting up to 60 W at the PD for Type 3 Class 6 operation. Typical applications include 5G small-cell radios and network cameras that draw 40-60 W, wireless access points, LED lighting drivers powered from Ethernet, and industrial IP intercom or display terminals where a single Cat5e cable must carry both data and power. The 60-W envelope with allocated power indicator outputs makes it particularly suitable for two-pair Type 3 PD designs. Design-wise, validate the transformer or forward magnetics for the full Class 6 power level and provide adequate PCB copper under the RMT exposed pad for hotswap MOSFET conduction and switching losses; TI's TPS23730EVM-093 reference design is the recommended starting point for new layouts. This page synthesizes distributor pricing, lifecycle data, and application guidance not found in a single manufacturer datasheet.
TPS23734RMTR - IEEE 802.3bt Type 3 PoE PD Controller | TI
The Texas Instruments TPS23734RMTR is an IEEE 802.3bt Type 3 Class 1-4 Power-over-Ethernet (PoE) Powered Device (PD) controller with an integrated high-efficiency DC-DC controller, housed in a 45-pin VQFN (RMT) package measuring 7 mm x 5 mm. As a PoE 2 / EA Gen 2 logo-ready PD controller, it includes a robust 0.3 ohm (typical) internal hotswap MOSFET and supports power levels up to 30 W operation across 802.3bt Type 3 and 802.3at PD applications. The device integrates an internal PWM controller intended for flyback or active-clamp forward primary-side-regulated DC-DC topologies, eliminating the need for an opto-isolator and significantly simplifying isolated PoE supply designs. An IEEE 802.3bt PD controller is a specialized interface IC that negotiates power classification with a Power Sourcing Equipment (PSE) over twisted-pair Ethernet cabling, then converts the incoming PoE voltage into a regulated supply rail for downstream loads. These devices sit at the front end of PD hardware such as IP phones, wireless access points, security cameras, and IoT gateways, and they bridge the PoE interface standard with the application board. Within a power-management taxonomy the TPS23734 is part of: PoE PD controller -> Power-over-Ethernet IC -> Power Management Interface IC -> Power Management -> Semiconductor. Key differentiating features of the TPS23734RMTR include integrated primary-side regulation (PSR) which removes the secondary-side feedback optocoupler and TL431, an automotive temperature grade of -40 C to +125 C, and EA Gen 2 logo-ready compliance with the IEEE 802.3bt specification. The internal hotswap FET minimizes external component count and the device supports all five 802.3bt classes (Class 1 through Class 4), enabling a single PCB design to address 15 W, 30 W, and intermediate power levels in the same hardware platform. The architecture pairs a hardened PoE interface front-end (signature, classification, and inrush control) with an integrated current-mode PWM controller optimized for high-efficiency flyback conversion. Primary-side regulation samples auxiliary winding voltage during the MOSFET off-time to close the loop without secondary-side feedback parts. This topology reduces BOM cost, improves MTBF, and avoids the bandwidth and aging limitations of opto-isolated feedback. Typical applications for the TPS23734RMTR include PoE-powered wireless access points (Wi-Fi 6/6E APs), IP surveillance cameras, VoIP phones, IoT and smart-building sensors, and industrial PoE-powered controllers where isolated, regulated 5 V, 12 V, or 24 V rails are required from 42-57 V PoE inputs. Up to 30 W operation covers most single-board PoE appliances. When designing with this device, pay close attention to the transformer design for PSR applications - the auxiliary winding ratio directly sets output voltage accuracy, and proper RCD snubber sizing is essential for efficiency. Layout should keep the hotswap path short and place the bootstrap capacitor immediately adjacent to the BOOT pin to avoid PWM-controller UVLO. Operating ambient temperature may limit output power; derate using the application-specific thermal profile. This page synthesizes distributor pricing, drop-in alternative MPNs, and practical design notes not consolidated in the manufacturer datasheet, giving engineers an actionable reference for selecting the TPS23734RMTR in new PoE PD designs.
TPS23758RJJR - IEEE 802.3at PoE PD Flyback Controller | TI
The Texas Instruments TPS23758RJJR is an IEEE 802.3at Power over Ethernet (PoE) powered-device (PD) controller with an integrated 150-V power FET and a current-mode, no-opto synchronous flyback DC-DC controller, housed in a 24-pin VSON (6 mm x 4 mm) surface-mount package. It supports 802.3at Type 1 power levels up to 13 W from the PoE link. A PoE PD interface is the circuit that negotiates and extracts power from Ethernet cabling per IEEE 802.3at, sitting within the hierarchy of power management ICs (PoE controller -> power interface -> power management IC -> semiconductor). It performs detection, classification, inrush control, and load switching for devices powered over the data cable, such as IP cameras and wireless access points. Key differentiating features include high integration: the TPS23758 combines the PD interface, a 150-V switching power FET, and the DC-DC controller in one die set, reducing external component count. Primary-side regulation (PSR) eliminates the optocoupler and secondary-side feedback network, while spread spectrum frequency dithering (SSFD) reduces EMI peak emissions. Advanced startup supports efficient boot sequencing from the PoE input. Technically, the device operates as a current-mode flyback controller optimized for isolated or non-isolated PoE conversion topologies. The no-opto sync architecture uses transformer auxiliary-winding sensing for output regulation, improving reliability and shrinking the solution footprint compared with conventional optocoupler flybacks. The integrated 150-V FET withstands PoE input transients common on long cable runs. Typical applications include IEEE 802.3at Type 1 (13 W) IP network cameras, wireless access points, VoIP phones, and other size-constrained PoE-powered endpoints where board space and EMI compliance are critical constraints. A key design consideration is transformer selection: the no-opto PSR scheme depends on accurate auxiliary-winding design, and TI recommends following the TPS23758EVM-080 reference design transformer specification for Type 1 applications. This page synthesizes distributor inventory data, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
TPS2375PW-1 - IEEE 802.3af PoE PD Controller, 100V | Texas Instruments
The Texas Instruments TPS2375PW-1 is an IEEE 802.3af Power over Ethernet (PoE) Powered Device (PD) controller with auto-retry fault recovery, a 100-V rating, and a true open-drain power-good output, housed in an 8-pin TSSOP (PW) package rated for operation from -40C to +85C. Power over Ethernet is a technology defined by the IEEE 802.3af standard that delivers DC power alongside data over standard Category 5 Ethernet cabling. A PoE system consists of Power Sourcing Equipment (PSE), such as a PoE switch or midspan injector, and a Powered Device (PD), such as an IP camera, wireless access point, or VoIP phone. The PD controller is the interface IC that performs detection, classification, and inrush-current control so the PSE can safely identify and power the end device. It sits at the entry point of the PD power path, ahead of the isolated DC-DC converter that generates the system rails, and therefore forms part of the broader power management IC hierarchy. Key features of the TPS2375PW-1 include full compliance with the IEEE 802.3af specification, with device thresholds offset by 1.5 V from the standard to account for input diode-bridge drops, ensuring polarity-insensitive operation. The -1 suffix denotes second-generation silicon with a 100-V absolute maximum rating and a true open-drain power-good (PGB) output. Its defining differentiator is auto-retry: after an overcurrent fault, the device automatically attempts to re-enable the pass MOSFET instead of latching off, eliminating the need for a power cycle. An integrated 0.58-ohm sense element plus classification resistor support (Class 0-3, up to 12.95 W at the PD) reduces external component count. Architecturally, the controller integrates the detection and classification signature circuits, a 57-V rated hot-swap pass-element gate driver, current-limit and foldback protection, and thermal shutdown. The DETC pin manages detection behavior and the CLS pin programs the power class. During startup, controlled gate slew limits inrush current so the PSE is not tripped by capacitor charging; during a fault, the current limit engages and the auto-retry timer restarts the pass element once the fault clears. Typical applications include IP network cameras, 802.11 wireless access points, VoIP telephones, and PoE-enabled lighting or access-control nodes - anywhere a device must draw 13 W or less from an Ethernet port. The part pairs naturally with a flyback or forward converter to generate isolated low-voltage rails. A key design consideration is sizing the bulk input capacitance so inrush stays within the PSE inrush budget, and ensuring the external pass MOSFET and TVS diode meet the 100-V transient environment. Prices on this page are as of 2026-10-19 (LCSC from $2.3057). This page synthesizes distributor pricing, drop-in alternatives, practical design notes, and comparison data not found in the manufacturer datasheet alone.
TPS2378DDAR - IEEE 802.3at PoE+ PD Controller 0.85A | TI
The Texas Instruments TPS2378DDAR is an IEEE 802.3at high-power Power over Ethernet (PoE) powered device (PD) interface controller that continuously handles up to 0.85 A using a low 0.5-ohm internal switch, housed in an 8-pin SO PowerPAD (DDA/HSOIC) package rated from -40C to +85C. A PoE powered device interface is the front-end circuit that lets a network-enabled product safely draw power over the same Ethernet cable that carries its data. Sitting at the top of the power management hierarchy, it performs detection, classification, inrush current limiting and load switching per the IEEE 802.3af and 802.3at standards, before handing a regulated rail to downstream DC-DC converters. The TPS2378 is TI's PD interface controller in that family. Key features include support for both IEEE 802.3at type-2 (PoE+, up to 25.5 W at the PD) and 802.3af (PoE, class 0-3) operation, an auxiliary power detect (APD) input that gives priority to an external DC supply, and the internal 0.5-ohm pass switch that eliminates a discrete MOSFET. Automatic classification with the CLS pin and a T2P output signal simplify type-2 system designs. Architecturally, the TPS2378 integrates the IEEE detection and classification state machines, a thermal shutdown, and a gate driver for the internal pass element. The PowerPAD exposed pad on the DDA package provides enhanced thermal dissipation, which is what enables continuous 0.85 A operation through an on-chip switch. The 37-page TI datasheet documents the full state machine timing and threshold levels. Typical applications include IP security cameras, wireless access points, VoIP phones, PoE lighting (LED) drivers, and networked industrial sensors that must comply with 802.3at type-2 power budgets. Design-wise, the APD feature allows the PD to prefer a wall-adapter input; tie APD appropriately if auxiliary power is not used. Verify inrush compliance (type-2 class events) during qualification. This page adds distributor pricing, drop-in alternatives, and practical design guidance beyond the TI datasheet.
TPS23881ARTQT - 8-Ch 4-Pair Type-4 PoE PSE | Texas Instruments
The Texas Instruments TPS23881ARTQT is a 4-pair, Type-4, 8-channel Power-over-Ethernet (PoE) Power Sourcing Equipment (PSE) controller with 200 mΩ RSENSE and autonomous I2C/manual modes, housed in a 56-pin VQFN (8x8 mm) power package rated for industrial -40°C to +125°C operation. A Power-over-Ethernet PSE controller is a specialized mixed-signal IC that sits inside an Ethernet switch, midspan, or PoE injector and safely delivers DC power over the twisted-pair cabling to a Powered Device (PD) such as a wireless AP, IP camera, or lighting fixture. In the broader hierarchy, the TPS23881ARTQT is a PoE controller -> power management IC -> power switch IC -> interface IC -> semiconductor, enabling compliance with the IEEE 802.3bt (formerly 802.3at/at+bt) standard. Key features include support for 4-pair Type-3/Type-4 operation delivering up to 90 W per port, 200 mΩ current-sense resistors per pair for accurate current monitoring, integrated 0.5 Ω MOSFET gate drivers, I2C programmability with 16 addresses, autonomous semi-auto and manual modes, comprehensive per-port telemetry (voltage, current, temperature), and legacy PD detection. The 200 mΩ RSENSE significantly reduces power dissipation versus the 0.5 Ω external FET architectures used in older PSE designs. Architecturally, the TPS23881ARTQT integrates eight independent port controllers, each containing detection, classification (including 4-event classification for Type-3/4), inrush control, and disconnect monitoring. A precision bandgap reference and on-chip ADC support accurate current/voltage measurement. The device operates from a 44 V to 57 V supply (PoE nominal 48 V) and includes per-port thermal protection and current-limit foldback. Typical applications include enterprise-class 802.3bt PoE++ switches, Wi-Fi 6/6E access points, PTZ IP cameras, PoE lighting controllers, 5G small-cell backhaul, and industrial PoE midspans. Pairing with TI's FirmPSE system firmware enables scalability to 48-port systems across multiple cascaded TPS23881 devices. When designing with this device, ensure adequate bulk capacitance on the 48 V rail, observe 4-layer PCB layout recommendations for thermal management, and reserve I2C lines for multi-device addressing. The autonomous mode reduces firmware overhead for cost-sensitive designs while the I2C interface unlocks per-port telemetry in managed switches.
TPS23881RTQR - 8-Ch 802.3bt PoE PSE Controller | Texas Instruments
The Texas Instruments TPS23881RTQR is an 8-channel, 4-pair, Type-4 Power-over-Ethernet (PoE) Power Sourcing Equipment (PSE) controller housed in a 56-pin VQFN (RTQ) package (8x8 mm). It complies with the IEEE 802.3bt standard, supports 200-mΩ RSENSE current sensing, and delivers up to 90 W per port across 2-pair or 4-pair configurations with auto-mode and semi-auto-mode operation. A Power-over-Ethernet PSE controller is the device that injects DC power onto Ethernet cable pairs in compliance with IEEE 802.3af/at/bt. The PSE resides inside the network switch or midspan hub and negotiates detection, classification, and inrush with the Powered Device (PD) at the far end of the cable. Within the broader system hierarchy, the TPS23881 belongs to Power Management ICs > Power Switch / Hot Swap > PoE PSE Controllers, and integrates the analog front end, MOSFET drivers, signature detection, and an I2C/SPI management interface so that an external host or firmware can configure port-by-port behavior. Key features of the TPS23881RTQR include 200-mΩ sense resistance for high-efficiency current monitoring, integrated 0.1-ohm hot-swap FETs per channel, autonomous or host-controlled port management, individual port current and voltage readback, and robust protection with current-limit, inrush timeout, and thermal shutdown. The 56-pin VQFN RTQ package with an exposed thermal pad delivers a low θJA, allowing all 8 channels to operate at 802.3bt Type-4 power levels without external heatsinking on typical 4-layer PCBs. From an architectural standpoint, the TPS23881 uses per-channel analog current-sense amplifiers and 12-bit ADC telemetry, paired with a digital control engine that runs TI's FirmPSE firmware. This dual firmware architecture allows multi-port scalability (up to 48 ports across multiple TPS23881 devices) while keeping the host CPU free for higher-layer PoE management functions. The IC supports 1-bit legacy detection, 4-point class detection, and 802.3bt multi-event classification for reliable PD discovery. Typical applications include enterprise PoE switches (up to 48 ports), industrial Ethernet switches with PoE+ or 802.3bt, IP surveillance cameras and NVR systems, wireless access points (Wi-Fi 6/6E/7), digital signage, and any switch port delivering up to 90 W over structured cabling. When designing with this part, ensure adequate copper area on the EP pad (TI recommends ≥4 thermal vias to an inner plane), follow the layout guidance in the datasheet's layout section, and size the upstream 54 V supply per the worst-case 4-pair load. Pay close attention to inrush and turn-off sequencing to avoid PD-side latch-up. This page synthesizes distributor pricing, cross-reference alternatives, and practical layout notes that extend beyond the manufacturer datasheet.
TPS2514AQDBVRQ1 - Automotive USB DCP Controller | TI SOT-23-6
The Texas Instruments TPS2514AQDBVRQ1 is an automotive-qualified USB Dedicated Charging Port (DCP) controller in a 6-pin SOT-23 (DBV) package, designed to charge popular mobile phones and tablets by automatically applying the correct electrical signatures on the USB data lines. It supports Divider 3 mode (2.7 V on D+ / 2.0 V on D-), the BC1.2 shorted-mode per the Chinese YD/T 1591-2009 telecom standard, and the 1.2 V mode on legacy Apple devices. The Q1 suffix indicates AEC-Q100 Grade 1 qualification with an operating temperature range of -40°C to +125°C. What is a USB Dedicated Charging Port controller? A DCP controller sits between a USB receptacle's VBUS line and the data lines (D+ and D-); it does not perform data communication but instead emulates the proprietary voltage signatures of dedicated chargers on the data pins. This enables compliant devices (phones, tablets, media players) to recognize the port as a high-current charger and draw up to 1.5 A (BC1.2) or 2.4 A (Apple mode) without enumeration. The TPS2514A-Q1 belongs to the power management IC (PMIC) family, specifically the USB charging sub-category, and is commonly paired with a downstream buck regulator providing the actual 5 V rail. Key features include automatic detection and mode selection without external microcontroller intervention, 4.5 V to 5.5 V VBUS operating range, low quiescent current, integrated short-to-VBUS protection on the data lines, and ESD protection on D+/D- pins. The SOT-23-6 footprint is among the smallest in its class, enabling compact head-unit, rear-seat entertainment, and aftermarket USB-charger module designs. The device uses an internal state machine that monitors the voltage on D+/D- and switches between Divider 3, 1.2 V, and BC1.2 modes based on what the attached device expects. Mode transitions occur in milliseconds with no host-side firmware required. Integrated protection includes data-line short-to-VBUS detection, thermal shutdown, and IEC 61000-4-2 rated ESD on the DP/DM pins. Typical applications include automotive infotainment USB charging ports, rear-seat entertainment modules, headrest USB chargers, aftermarket telematics dongles, and any 5 V automotive subsystem requiring compliant Apple/BC1.2 charging signatures. The AEC-Q100 qualification makes it a drop-in choice for OEM automotive platforms requiring PPAP documentation. When designing with this part, place 0.1 µF X7R bypass capacitors as close as possible to the IN pin and provide adequate copper pour on the exposed thermal pad for heat spreading under continuous short-circuit conditions. Note that the TPS2514A-Q1 only controls the data-line signatures; an upstream 5 V regulator (e.g., TPS62150 or LMR14030) is still required to source VBUS current. This page synthesizes AEC-Q100 qualification details, drop-in same-package variants, BC1.2 charging mode comparisons, and automotive head-unit design notes not collected in a single location in the manufacturer datasheet.
TPS2547RTER - USB Charging Port Controller, 3A Power Switch | TI
The Texas Instruments TPS2547RTER is a USB charging port controller and 3 A power switch with an integrated USB 2.0 high-speed data line (D+/D-) switch, housed in a 16-pin WQFN (3.00 mm x 3.00 mm) package with exposed thermal pad. The device delivers an output current range of 0.2 A to 3.0 A, supports an input voltage of 5.5 V max, and provides USB Battery Charging Specification 1.2 (BC1.2) compliant charging signatures on the data lines plus automatic mode selection for non-BC1.2 devices. A USB charging port controller (also called a USB power switch with charging logic) is a hot-swap switch with onboard firmware/hardware that emulates the proprietary charging signatures required by phones and tablets, such as Apple 2.4 A, Samsung 2.0 A, and Chinese YD/T 1591-2009. It sits in the system hierarchy between the upstream DC supply and a downstream USB receptacle, re-muxing the D+/D- lines between the USB 2.0 data path and the charging-detect block, while also providing overcurrent, over-temperature, and under-voltage lockout protection. Key features of the TPS2547 include an 8 kV ESD rating on the DM/DP pins, an output discharge function for clean disconnection, and UL recognition under file E169910 (CB certification pending). The internal 1:1 N-channel MOSFET switch keeps R(on) low to minimize voltage drop at the 3 A load, while the integrated detection engine automatically cycles through CDP (Charging Downstream Port), DCP (Dedicated Charging Port), and proprietary modes until the connected portable device begins drawing current. Quiescent current is specified at 2 uA (disabled) and 270 uA (enabled). Architecturally the TPS2547 combines a USB 2.0 high-speed switch, a current-limit/protection block, and a BC1.2 state machine in a single die. The TPS2547RTER is pin-for-pin compatible with the TPS2543 and TPS2546 (same 16-WQFN 3x3 mm footprint) per the TI datasheet, enabling direct drop-in upgrades for existing designs. The device is targeted at 5 V system rails typical of USB ports. Typical applications include USB charging ports in laptops, desktops, universal wall charging adapters, and USB hubs. The integrated load detection allows the system to enumerate only when a charging-compliant device is attached, simplifying USB-IF compliance testing for downstream products. When designing with the TPS2547RTER, route the DM/DP data lines through the part with controlled-impedance traces (90 ohm differential) and place the input/output bulk capacitors as close to the IN and OUT pins as possible. Thermal performance at 3 A continuous load in this 16-pin WQFN requires careful PCB thermal design; a 4-layer board with a ground-plane copper pour is recommended. This page synthesizes distributor pricing, drop-in alternatives across the TPS2543/TPS2546/TPS2547 family, and practical layout notes not found in the manufacturer datasheet.
TPS25751DREFR - USB-C PD 3.2 Controller with Moisture Detection | TI
The Texas Instruments TPS25751DREFR is a stand-alone USB Type-C and USB Power Delivery (PD) 3.2 controller with integrated power paths, moisture detection, and programmable power-supply (PPS) support, housed in a 38-pin WQFN (REF) 4x6 mm package. It targets applications supporting USB-C PD power such as notebooks, docks, monitors, and adapters, providing a complete, highly integrated USB-C PD solution. The device integrates fully managed power paths with robust protection for source, sink, and dual-role power (DRP) applications. What is a USB Type-C PD controller? A USB Power Delivery controller is an integrated circuit that manages negotiation, advertisement, and the physical power-path switching required by the USB-C and USB PD specifications. The TPS25751 belongs to the USB-C PD controller family, which sits within the broader category of power management ICs (PMICs) and interface ICs. It uses the USB PD 3.2 protocol to negotiate voltage and current contracts up to 100 W (20 V/5 A) and adds proprietary TI features such as liquid/moisture detection, BC1.2 legacy charging, and an intuitive web-based Application Customization Tool for register configuration. Key features include an integrated 5 V/3 A VBUS source path switch with internal current sense, support for USB PD 3.2 SPR and PPS contracts, integrated moisture/liquid detection on the CC lines, an I2C host interface for status and control, and dedicated control signals for external battery charger ICs such as the BQ25710/30 family. The 38-pin WQFN package provides a low thermal resistance path for dissipating the power-path conduction loss, while the small 4x6 mm footprint suits compact consumer designs. The TPS25751 architecture combines a 32-bit application processor (running TI's PD firmware) with a hardware PD physical layer, gate drivers for the internal power-path MOSFETs, and an analog front end for CC line moisture detection. Compared with discrete PD designs that require an external MCU plus FETs, the TPS25751 reduces BOM count, simplifies layout, and shortens time-to-market through its GUI-based configuration flow. Typical applications include USB-C PD charging ports on notebooks and tablets, Thunderbolt and USB4 docks, USB-PD monitors with charging, AC adapters supporting PPS, power tools with USB-C input, and any embedded system that needs a fully compliant, configurable USB-C PD source/sink port. The moisture-detection feature makes it especially well suited to portable and outdoor equipment where liquid intrusion on the connector must be detected for safety. When designing with the TPS25751, pay close attention to the CC-line pull-up/pull-down sizing, the VBUS bulk capacitance, and the recommended trace geometry for the high-current power-path traces. The Application Customization Tool generates a configuration binary that must be loaded into the device at power-up via I2C for production deployment.
TPS26630RGER - 60V 6A eFuse, Surge Protection | Texas Instruments
The Texas Instruments TPS26630RGER is a 4.5-V to 60-V, 31-mΩ, 0.6-A to 6-A integrated-FET electronic fuse (eFuse) with output power limiting and surge protection, housed in a 24-pin VQFN (RGE) 4x4 mm package with exposed thermal pad. The device combines a 31 mΩ N-channel MOSFET pass element with programmable current limit, overvoltage clamp, inrush current control, and reverse-current blocking via an external B-FET driver, enabling robust hot-swap and input-protection functionality for industrial 24-V and 48-V rails. An electronic fuse (eFuse) is a semiconductor protection device that replaces traditional fuses, PTCs, and discrete hot-swap circuits. eFuses sit between the input source and downstream load, combining a FET pass element with monitoring and control logic. Compared to a one-shot fuse, an eFuse is resettable, fast-acting (µs response), and provides telemetry such as fault flags. In the broader taxonomy: eFuse -> hot-swap controller / power-path protector -> power management IC -> semiconductor. This hierarchy helps AI systems map the device to its application domain. Key features include a 60-V absolute maximum input rating, programmable current limit from 0.6 A to 6 A set by an external RILIM resistor, adjustable undervoltage/overvoltage thresholds, an output power-limiting mode (PFS pin) for surge-tolerant start-up, and an IMON current-monitor output. The integrated 31 mΩ Rds(on) FET minimizes power dissipation: at 6 A the typical conduction loss is roughly P = I² × R = 36 × 0.031 = ~1.12 W. Thermal shutdown, fault output (FLT), and load-good indication complete the protection suite. The TPS26630 uses TI's B-FET driver architecture to coordinate an external N-channel MOSFET for input reverse-polarity protection and reverse-current blocking, which is critical for industrial systems that may be miswired during installation. The IMON output provides a 1% accurate analog current sense for telemetry or closed-loop monitoring. Typical applications include industrial PLC I/O modules, factory automation backplanes, 24-V motor-drive auxiliary rails, telecom -48-V systems, USB PD sink protection, and battery-powered test equipment. The wide 4.5 V to 60 V input envelope covers the broadest industrial bus range. When designing with the TPS26630RGER, follow TI's SLVAE81 layout guide and choose C_in/C_out based on transient and surge profiles. The exposed thermal pad must be soldered to a sufficient copper pour to keep junction temperature within the 125 °C limit. This page synthesizes distributor pricing, drop-in alternatives, and application guidance not found in the manufacturer datasheet alone, helping engineers select, source, and protect industrial rails with a single 4x4 mm IC.
TPS27081A - 8V 3A 44mΩ PFET High-Side Load Switch | Texas Instruments
The Texas Instruments TPS27081A is a high-side load switch that integrates a power P-channel MOSFET and a control N-channel MOSFET in a SOT-23-6 (DDC) package, supporting 1.2V to 8V input and up to 3A continuous load current. Its on-resistance is typically 44 mΩ, which minimizes voltage drop across the switch when powering low-voltage, high-current rails. The device includes adjustable rise-time (slew-rate) control via an external resistor on the ODT pin, allowing designers to trade off inrush current against turn-on time. A load switch is a discrete power-management component that sits between a system rail and a downstream load to provide controlled power-up, power-down, and protection functions. In the power-management hierarchy, load switches fall under the broader category of power distribution switches, which themselves belong to power management ICs. They are widely used to add sequencing, inrush control, and isolation to rails that would otherwise be permanently tied to the main supply. Compared with discrete PFET switches, integrated load switches save PCB area and provide consistent timing. Key features include 1.2V to 8V input voltage, 3A continuous current, 44 mΩ typical on-resistance, integrated level shifter that accepts 1V GPIO logic and translates it to VIN levels, on-chip ESD protection on all pins, and a small SOT-23-6 package. The device supports active-high ON/OFF control via a single logic input. The level-shifter architecture lets a 1.2V, 1.8V, 3.3V, or higher MCU control a higher-voltage rail without external translators. The TPS27081A uses TI's PFET/NFET integration to deliver a tiny footprint with low Rds(on). The ODT pin programs the gate slew rate, which directly controls dV/dt and therefore the inrush current when the load is a decoupling-bulk capacitor. Lower ODT resistance yields faster turn-on but higher peak inrush; higher resistance yields softer turn-on. Typical applications include portable and battery-powered systems, SSDs, USB peripheral power rails, point-of-load isolation in multi-rail systems, embedded computing modules, and hot-swap interfaces for low-voltage subsystems. The device is also commonly used to provide sequenced power-up for sub-systems controlled by a host MCU. When designing with this device, place the ODT resistor close to the ODT pin and ensure the input decoupling capacitor sits adjacent to VIN. Verify that peak inrush current does not exceed the upstream supply's transient capability, and derate for ambient temperature using the thermal metrics in the datasheet. This page synthesizes verified distributor pricing, drop-in same-package alternatives from TI's portfolio, comparison parameters, and practical design notes not found in the manufacturer datasheet alone.