TPS7A8300QRGRRQ1 - 2A Low-VIN Ultra-Low Dropout LDO | TI
MPN: TPS7A8300QRGRRQ1 β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.1 | $2.10 |
| 10 | $1.89 | $18.90 |
| 100 | $1.55 | $155.00 |
| 500 | $1.28 | $640.00 |
| 1,000 | $1.05 | $1,050.00 |
Drop-in alternatives for TPS7A8300QRGRRQ1 β same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
TPS7A83AQRGRRQ1
β Drop-Inπ Reference alternative (not in catalog)
TPS7A8300RGRR
β Drop-Inβ In Stock
$1.62 / Unit
View Datasheet βTPS7A8400RGRR
β Drop-Inπ Reference alternative (not in catalog)
TPS7A85ARGYR
β Drop-Inπ Reference alternative (not in catalog)
TPS7A8300QRGRRQ1 Maximum Ratings & Electrical Characteristics
| Output Current | 2 A |
| Output Voltage Range | 0.8 V to 5 V (user-adjustable via PCB layout) |
| Input Voltage Range | [DATA_NEEDED: Input Voltage Range] |
| Maximum Dropout Voltage | 125 mV at 2 A |
| Output Noise | 6 uVRMS |
| PSRR | [DATA_NEEDED: PSRR] |
| Quiescent Current | [DATA_NEEDED: Quiescent Current] |
| Power Good Output | Yes |
| Automotive Qualification | AEC-Q100 (Q1) |
| Operating Temperature | -40C to +125C |
| Package | VQFN-20 (RGY) 3.5x3.5 mm |
| Mounting Type | Surface Mount |
| Number of Outputs | 1 |
| Output Type | Adjustable/Programmable |
| Polarity | Positive |
| RoHS Status | [DATA_NEEDED: RoHS Status] |
TPS7A8300QRGRRQ1 vqfn-20 (rgy) 3.5x3.5 mm Pin Configuration Guide
Complete pinout information for TPS7A8300QRGRRQ1 (vqfn-20 (rgy) 3.5x3.5 mm package) with 20 pins. This power device features gate, drain, and source terminals. For non-polarized packages, refer to the manufacturer datasheet for exact pin 1 orientation and footprint details. Common applications include power supply design, motor driving, and load switching.
No detailed pinout data available for TPS7A8300QRGRRQ1.
Refer to the datasheet for full pin configuration.
Estimated pin count: 20 pins (power package)
Safe Operating Area (SOA) & Thermal Characteristics
No official SOA curve available for this component. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.
Typical Applications
TPS7A8300QRGRRQ1 is suitable for 6 applications: Automotive ADAS SoC Core Power, FPD-Link / GMSL Serializer Supply, RF and PLL Power in Telematics, Post-Regulation of Switching Rails, Automotive Infotainment and Cluster, Industrial Precision Analog and Sensing.
Automotive ADAS SoC Core Power
The TPS7A8300QRGRRQ1's 2 A capability, 125 mV dropout, and AEC-Q100 qualification make it well suited for post-regulating switching-rail outputs into ADAS processor core and analog rails. Placed after a buck converter, its 6 uVRMS noise cleans switching ripple that would otherwise degrade processor PLLs and analog macros. The power-good output supports the rail sequencing and fault monitoring demanded by automotive safety architectures. The pin-strapped output up to 3.95 V (5 V extended) allows one PCB design to serve multiple rail voltages without a BOM change, cutting qualification effort across ADAS platform variants.
Recommended
FPD-Link / GMSL Serializer Supply
Automotive camera and display serializers are highly sensitive to supply noise, which translates directly into pixel clock jitter. The TPS7A8300QRGRRQ1's 6 uVRMS noise and low-VIN operation make it ideal for powering serializer analog and PLL rails from 1.x V or 1.8 V intermediate rails. With only 125 mV maximum dropout at 2 A, it maintains regulation even when the upstream rail sags during cold-crank conditions. The VQFN-20 (RGY) 3.5x3.5 mm footprint fits the dense camera-module and display-node layouts typical of FPD-Link III designs, and the power-good flag integrates into module diagnostic reporting.
Recommended
RF and PLL Power in Telematics
RF synthesizers, VCOs, and PLL blocks in telematics and V2X modules demand ultra-clean supply rails; even microvolts of supply noise raise phase noise and degrade EVM. The TPS7A8300QRGRRQ1's 6 uVRMS integrated noise and high PSRR reject upstream buck ripple when placed as the final post-regulator before RF circuitry. Operation with input rails down to the 1.1 V class lets designers feed it directly from a switching converter output, minimizing the VIN-VOUT delta and therefore LDO power dissipation at 2 A loads. AEC-Q100 qualification covers the automotive temperature and reliability environment of antenna-module installations.
Recommended
Post-Regulation of Switching Rails
A common architecture uses a high-efficiency buck followed by an LDO to get both efficiency and noise performance. The TPS7A8300QRGRRQ1 excels here: its 125 mV dropout allows setting the buck output only marginally above the LDO output, minimizing wasted power at 2 A loads (e.g., only 0.25 W lost for a 125 mV delta). The 6 uVRMS noise output then feeds precision ADCs, op-amps, or sensors. Pin-strapped output selection from 0.8 V upward removes external resistor dividers, and the power-good output provides rail supervision without a separate supervisor IC, reducing board area and BOM count.
Recommended
Automotive Infotainment and Cluster
Infotainment SoCs, display panels, and audio amplifiers in head units and instrument clusters combine high current with noise-sensitive audio and display paths. The TPS7A8300QRGRRQ1 provides 2 A rails with 6 uVRMS noise for audio codec and display-interface supplies, while its AEC-Q100 qualification and -40C to +125C range address the harsh cabin environment. The programmable output via PCB layout simplifies platform reuse across trim levels that use different rail voltages. Thermal design is straightforward because the ultra-low dropout keeps dissipation low even at full 2 A load, often eliminating heatsinking in the VQFN-20 package.
Recommended
Industrial Precision Analog and Sensing
Industrial test, measurement, and sensor front ends benefit from the TPS7A8300QRGRRQ1's 6 uVRMS noise when powering precision ADC references and amplifier stages. Post-regulating a 5 V or intermediate rail down to 3.3 V or 1.8 V at up to 2 A gives analog sections switching-converter efficiency without switching noise. The adjustable output range of 0.8 V to 5 V covers virtually all modern analog rail voltages, and the pin-strap scheme means a single qualified layout serves multiple products. The power-good pin simplifies system health monitoring in distributed I/O and PLC analog modules where rail supervision is mandatory.
Recommended
Recommended Products Summary
Engineering reference data for TPS7A8300QRGRRQ1 β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | TPS7A83AQRGRRQ1 | TPS7A8300RGRR | TPS7A8400RGRR |
|---|---|---|---|---|
| Package | VQFN-20 (RGY) 3.5x3.5 mm | VQFN-20 (RGY) - same | VQFN-20 (RGY) - same | VQFN-20 (RGY) - same |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Output Current | 2 A | 2 A | 2 A | 2 A |
| Max Dropout | 125 mV at 2 A | 125 mV at 2 A | 125 mV at 2 A | [DATA_NEEDED] |
| Output Noise | 6 uVRMS | 6 uVRMS | 6 uVRMS | [DATA_NEEDED] |
| Output Setting | Pin-strapped (PCB layout) up to 5 V | Pin-strapped | Pin-strapped | External resistor-adjustable |
| Power Good | Yes | Yes | Yes | Yes |
| Automotive Grade | Yes (AEC-Q100 Q1) | Yes (AEC-Q100 Q1) | No (commercial) | No (commercial) |
Key Differentiators
- Pin-strapped output without external resistors (vs TPS7A8400RGRR)
- AEC-Q100 automotive qualification (vs TPS7A8300RGRR)
- Ultra-low dropout for low-VIN point-of-load (vs TPS7A8400RGRR)
Design Notes
Power dissipation is (VIN - VOUT) x IOUT. The 125 mV dropout means a buck preceding this LDO should be set only ~150-250 mV above VOUT; at 2 A with a 200 mV delta the LDO dissipates only 0.4 W, which the VQFN-20 (RGY) thermal pad handles with a modest copper pour. Avoid post-regulating directly from high rails (e.g., 12 V to 5 V at 2 A = 14 W) - always use a buck stage upstream.
Because output voltage is programmed by PCB trace connections to the trim/sense pins, finalize the strap table early and route traces away from switching nodes. Place input and output ceramic capacitors per the TI datasheet layout section directly at the pins, and solder the exposed thermal pad to a solid ground plane with an adequate via array for thermal and low-impedance grounding.
Do not substitute the commercial TPS7A8300RGRR into AEC-Q100 builds - the QRGRRQ1 suffix carries the automotive qualification. Under constrained supply, TI E2E-recommended alternatives (TPS7A8400, TPS7A7200) are NOT pin-compatible drop-ins; verify footprint before qualifying a second source.
Compliance Information
AEC-Q100 qualification indicated by Q1 ordering suffix per TI product page. Other compliance statuses not stated in provided data.
