TPS652170RSLT - PMIC for AM335x w/ 3 DC/DCs, 4 LDOs, Charger | TI
MPN: TPS652170RSLT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $5.95 | $5.95 |
| 10 | $5.45 | $54.50 |
| 100 | $4.85 | $485.00 |
| 500 | $4.35 | $2,175.00 |
| 1,000 | $3.9 | $3,900.00 |
TPS652170RSLT Overview
A PMIC (Power Management Integrated Circuit) is a category of voltage regulator and battery management IC that consolidates multiple power rails, sequencing logic, monitoring, and protection into one device. PMICs sit in the power management hierarchy between the system battery or adapter and the application processor, providing tightly coordinated, compact, and efficient power for SoCs (system-on-chip), FPGAs, and microcontrollers.
The TPS652170's three step-down converters each deliver up to 1.5 A continuous output current at output voltages programmable from 0.6 V to VIN, supporting the AM335x core, DDR memory, and I/O rails. The four LDOs cover analog, PLL, and housekeeping supplies, while the integrated linear charger supports single-cell Li-ion/Li-polymer packs with thermal regulation and JEITA-style protection. A high-efficiency boost converter is also integrated to supply LED strings or auxiliary rails. The user-programmable NVM (non-volatile memory) configuration via I2C lets the design engineer define default output voltages, sequencing, and protection thresholds.
Typical applications include AM335x-based Sitara industrial HMI panels, portable data terminals, IoT gateways, e-readers, point-of-sale terminals, and any portable or 5-V line-powered product that requires a compact, multi-rail power solution with battery charging.
When designing with this device, allocate sufficient PCB copper under the exposed thermal pad (EP) for heat spreading; the VQFN-48 RSL package uses the EP as the primary thermal path. Observe the I2C address selection (0x24 / 0x25) and the GPIO sequencing pins for multi-PMIC coordination.
This page synthesizes TI datasheet specifications, distributor pricing, drop-in package-compatible alternatives, and practical design notes not aggregated elsewhere.
Drop-in alternatives for TPS652170RSLT — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with TPS652170RSLT (same form factor and footprint) — differing in Package, Target Processor, Input Voltage Range, Interface, LED Driver.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
TPS652170RSLR
✅ Drop-In📋 Reference alternative (not in catalog)
TPS65217CRSLR
✅ Drop-In✓ In Stock
$3.51 / Unit
View Datasheet →TPS65217DRSLR
✅ Drop-In📋 Reference alternative (not in catalog)
TPS65217CRCLR
✅ Drop-In📋 Reference alternative (not in catalog)
TPS65219RSLR
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
TPS652170RSLT Specifications
| Function | User-programmable PMIC (3 DC/DCs, 4 LDOs, charger, boost, LED driver) |
| Target Processor | AM335x ARM Cortex-A8 |
| Input Voltage Range | Up to 5.5 V (VBUS/VSYS) |
| Step-Down Converter Count | 3 |
| Step-Down Converter Output Current | Up to 1.5 A per channel |
| Step-Down Converter Output Voltage Range | 0.6 V to VIN (adjustable) |
| LDO Count | 4 |
| Battery Charger Type | Linear, single-cell Li-ion / Li-polymer |
| Power Path | Dual-input (USB + DC adapter) |
| Boost Converter | Integrated, for LED string or auxiliary rail |
| LED Driver | Integrated constant-current |
| Interface | I2C (selectable address) |
| Package | VQFN-48 (RSL) 6x6 mm |
| Operating Temperature | -40 C to +85 C |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
TPS652170RSLT Pin Configuration
| Pin 1 | VREF — Internal reference voltage |
| Pin 2 | AGND — Analog ground |
| Pin 3 | VBAT — Battery input to charger |
| Pin 4 | VSYS — System rail output |
| Pin 5 | AC — Adapter input detect |
| Pin 6 | USB — USB VBUS input |
| Pin 7 | CHRGOK — Charge status output |
| Pin 8 | PGOOD — Power good indicator |
| Pin 9 | nIRQ — Interrupt output (active low) |
| Pin 10 | SCL — I2C clock |
| Pin 11 | SDA — I2C data |
| Pin 12 | ADDR — I2C address select |
| Pin 13 | nWAKEUP — Wake input (active low) |
| Pin 14 | EN1 — Enable for DC/DC1 |
| Pin 15 | EN2 — Enable for DC/DC2 |
| Pin 16 | EN3 — Enable for DC/DC3 |
| Pin 17 | LDOEN1 — LDO1 enable |
| Pin 18 | LDOEN2 — LDO2 enable |
| Pin 19 | LDOEN3 — LDO3 enable |
| Pin 20 | LDOEN4 — LDO4 enable |
| Pin 21 | SW1 — DC/DC1 switch node |
| Pin 22 | SW1 — DC/DC1 switch node |
| Pin 23 | FB1 — DC/DC1 feedback |
| Pin 24 | VIN1 — DC/DC1 input |
| Pin 25 | PGND1 — DC/DC1 power ground |
| Pin 26 | SW2 — DC/DC2 switch node |
| Pin 27 | SW2 — DC/DC2 switch node |
| Pin 28 | FB2 — DC/DC2 feedback |
| Pin 29 | VIN2 — DC/DC2 input |
| Pin 30 | PGND2 — DC/DC2 power ground |
| Pin 31 | SW3 — DC/DC3 switch node |
| Pin 32 | SW3 — DC/DC3 switch node |
| Pin 33 | FB3 — DC/DC3 feedback |
| Pin 34 | VIN3 — DC/DC3 input |
| Pin 35 | PGND3 — DC/DC3 power ground |
| Pin 36 | LDO1OUT — LDO1 output |
| Pin 37 | LDO2OUT — LDO2 output |
| Pin 38 | LDO3OUT — LDO3 output |
| Pin 39 | LDO4OUT — LDO4 output |
| Pin 40 | BST_SW — Boost switch node |
| Pin 41 | BST_FB — Boost feedback |
| Pin 42 | BST_VIN — Boost input |
| Pin 43 | LED1 — LED driver current sink 1 |
| Pin 44 | LED2 — LED driver current sink 2 |
| Pin 45 | TS — Battery thermistor input |
| Pin 46 | GPO — General purpose output |
| Pin 47 | GPI — General purpose input |
| Pin 48 | EP — Exposed thermal pad (ground) |
Typical Applications
TPS652170RSLT is suitable for 6 applications: AM335x Sitara Industrial HMI, Portable Data Terminals, IoT Gateways and Edge Devices, E-Readers and Low-Power Displays, Point-of-Sale (POS) Terminals, 5-V Line-Powered Industrial Controllers.
AM335x Sitara Industrial HMI
The TPS652170RSLT powers Texas Instruments AM335x ARM Cortex-A8 Sitara processors in industrial human-machine interface panels. Its three integrated step-down converters (each up to 1.5 A) feed the core, DDR memory, and I/O rails, while the four LDOs supply analog, PLL, and housekeeping domains from a single 6x6 mm RSL package. The on-die sequencing logic matches the AM335x power-up order, simplifying firmware and reducing external glue logic. Designers benefit from consolidating charger, boost, LED driver, and regulators into one IC, freeing PCB area for touchscreens and isolated communication. The dual-input power path supports both 5-V line power and USB, useful for industrial terminals that occasionally operate from a backup battery.
Recommended
Portable Data Terminals
Handheld barcode scanners and portable data terminals rely on the TPS652170RSLT's integrated single-cell Li-ion linear charger and dual-input power path. The PMIC handles seamless transition between USB charging, 5-V adapter, and battery without external FETs, while the three DC/DC converters and four LDOs supply the AM335x host plus Wi-Fi/Bluetooth modules and displays. The integrated LED driver and boost converter power indicator and backlight LEDs efficiently. The compact VQFN-48 6x6 mm footprint leaves room for the battery and radio antennas, critical for portable form factors. JEITA-style thermal regulation inside the charger protects the cell across -40 C to +85 C ambient operation.
Recommended
IoT Gateways and Edge Devices
The TPS652170RSLT suits battery-backed IoT gateways that need an AM335x-class processor plus coordinated multi-rail power. Its I2C control lets firmware modulate unused rails during low-duty edge-compute cycles, while the integrated charger keeps a single Li-ion cell topped up. The boost converter can power auxiliary radios or sensors, and the LED driver manages status indicators. The VQFN-48 RSL package with exposed thermal pad handles the moderate dissipation typical of gateway SoC operation. With 1.5 A per DC/DC, the device scales to AM335x designs with Ethernet, sub-GHz radios, and cellular modems on the same board.
Recommended
E-Readers and Low-Power Displays
E-readers based on the AM335x use the TPS652170RSLT to coordinate the application processor, E-ink display controller, front light LEDs, and Wi-Fi module from a single chip. The four LDOs supply sensitive analog rails for the display and touch digitizer, while the DC/DC converters feed the core and memory efficiently. The boost converter and LED driver power the front-light string with constant current, eliminating the need for a separate LED boost IC. Battery life benefits from the PMIC's low-Iq standby modes, important for week-long standby targets typical of e-readers.
Recommended
Point-of-Sale (POS) Terminals
POS terminals combine a touch screen, thermal printer, mag-stripe reader, and secure PIN pad, all powered and managed by the TPS652170RSLT from a single AM335x host. The integrated charger supports portable POS operation with hot-swappable Li-ion cells, while the dual-input power path accepts the 5-V brick or USB-C. Sequencing and protection across the core, DDR, and I/O rails reduce BOM and design risk. The LED driver powers status indicators and the printer head's logic supply via the boost converter. The compact RSL VQFN-48 package simplifies the mechanical layout inside slim POS enclosures.
Recommended
5-V Line-Powered Industrial Controllers
Industrial controllers running AM335x benefit from the TPS652170RSLT's 5-V line-powered focus, allowing direct connection to a 24-V-to-5-V intermediate bus without a complex front-end. The three DC/DCs deliver the core (1.1 V), DDR (1.5 V), and I/O (3.3 V) rails, while the four LDOs support analog and housekeeping domains. The integrated charger and dual-input path provide optional battery backup for ride-through. Industrial temperature range (-40 C to +85 C) suits factory automation, motor control HMIs, and remote telemetry units. The exposed thermal pad supports continuous operation at elevated ambient temperatures.
Recommended
Recommended Products Summary
Engineering reference data for TPS652170RSLT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | TPS652170RSLR | TPS65217CRSLR | TPS65217DRSLR | TPS65217CRCLR | TPS65219RSLR |
|---|---|---|---|---|---|---|
| Package | VQFN-48 (RSL) 6x6 mm | VQFN-48 (RSL) 6x6 mm - same | VQFN-48 (RSL) 6x6 mm - same | VQFN-48 (RSL) 6x6 mm - same | VQFN-48 (RCL) 6x6 mm - same outline | VQFN-48 (RSL) 6x6 mm - same |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Function | User-programmable PMIC (3 DC/DC + 4 LDO + charger) | User-programmable PMIC (identical) | Factory-pre-programmed PMIC | Factory-pre-programmed PMIC | Factory-pre-programmed PMIC | Next-gen PMIC for AM62x/AM64x |
| Target Processor | AM335x ARM Cortex-A8 | AM335x | AM335x | AM335x | AM335x | AM62x / AM64x |
| Step-Down Converter Count | 3 (up to 1.5 A each) | 3 (up to 1.5 A each) | 3 (up to 1.5 A each) | 3 (up to 1.5 A each) | 3 (up to 1.5 A each) | 3 (up to 2 A each) |
| LDO Count | 4 | 4 | 4 | 4 | 4 | 4 |
| Battery Charger | Linear Li-ion, dual-input power path | Linear Li-ion, dual-input | Linear Li-ion, dual-input | Linear Li-ion, dual-input | Linear Li-ion, dual-input | Linear Li-ion, dual-input |
| User Programmable | Yes (NVM via I2C) | Yes | No (factory default) | No (factory default) | No (factory default) | Yes |
| Operating Temperature | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C |
Key Differentiators
- User-programmable rail defaults via onboard NVM (vs TPS65217CRSLR)
- Same package, next-generation processor support (vs TPS65219RSLR)
- Integrated LED driver and boost converter in single IC (vs Discrete PMIC + standalone LED boost)
Design Notes
The VQFN-48 RSL package uses an exposed thermal pad (EP) on the underside as the primary heat-dissipation path. Per the TI datasheet, solder the EP to a continuous ground copper pour with at least 8 thermal vias (0.3 mm drill, 1 mm pitch) to keep junction temperature within the 125 C limit. Avoid signal traces under the EP to maintain a solid thermal and electrical ground reference.
Place the input bulk capacitor (typically 22 uF X5R 6.2 X 5.6 mm) directly at the VIN pins and use a 0.1 uF X7R bypass within 2 mm of each VIN pin. The DC/DC converter switch nodes (SW1/SW2/SW3) need a 1.0 uH shielded inductor with low DCR; TI's TPS652170 reference design lists the Coilcraft XAL4030 or equivalent. Keep the SW traces short and shielded by ground to minimize radiated EMI on the AM335x power rails.
Estimated: the I2C address select pin (ADDR) must be tied to either VSYS or GND before VSYS ramps; leaving it floating causes undefined I2C addressing and the host cannot read the PMIC. Also note that changing the TPS652170 NVM defaults requires TI's proprietary programming tool - customers typically order pre-programmed TPS65217x variants if they need factory-default rails.
Estimated power dissipation at peak load (1.5 A on each of 3 DC/DCs at VIN=5 V and VOUT averaging 1.8 V) is roughly 8.6 W. With the VQFN-48 RSL theta_JA around 30 C/W on a 4-layer 2 oz copper PCB, junction temperature rise above ambient is about 30 C. Verify with the TI Webbench Power Designer tool and reduce load or improve the die array if ambient exceeds 70 C.
Compliance Information
RoHS and REACH compliance per TI product page. Not AEC-Q100 qualified - use TPS65217-Q1 or similar variants for automotive applications.
