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Home > Products > Integrated Circuits (ICs) > Power Management (PMIC) > Power Management - Specialized

Texas Instruments TPS652170RSLT

Name: TPS652170RSLT
Brand: Texas Instruments
SKU: TPS652170RSLT
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TPS652170RSLT

Manufacturer:: Texas Instruments

Category:: Power Management - Specialized

Package:: 48-VFQFN Exposed Pad

Datasheet:: TPS652170RSLT.pdf

Description:: POWER MANAGEMENT

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Product details

Overview

TPS652170 from Texas Instruments is a programmable power management IC (PMIC) designed for battery-powered systems and 5-V line-powered applications, delivering three 1.2-A synchronous buck converters (DCDC1–DCDC3), two adjustable LDOs (LDO1/LDO2), two configurable load switches (LS1/LS2), a WLED boost driver, and integrated battery charger with 2-A power path and 700-mA linear charging. It powers Sitara AM335x processors in portable navigation and industrial tablet systems.

For engineers reviewing the TPS652170 datasheet, TPS652170 pinout, TPS652170 application, or TPS652170 equivalent, key selection considerations include its 2.25-MHz fixed-frequency DC/DC operation, I²C address 0x24 with password-protected registers, 6-mm × 6-mm VQFN-48 package, thermal regulation, and support for DDR3/DDR3L memory rail sequencing (VDDQ/2, VTT, VREFCA).

Technical Context

The TPS652170 integrates a dual-input (USB/AC) power path with dynamic power path management (DPPM), enabling seamless transition between input sources while regulating SYS voltage. Its three buck converters operate at 2.25 MHz with ±2% output accuracy in PWM mode and support 100% duty cycle for ultra-low dropout-critical for core (VDD_CORE), memory (VDDS_DDR), and I/O (VDDSHVx) rails in AM335x-based designs.

Two programmable LDOs (LDO1: 1–3.3 V, LDO2: 0.9–3.3 V) and two configurable load switches (LS1/LS2: 1.5–3.3 V as LDOs or 1.8–5.8 V as switches) provide flexible auxiliary rail generation. The WLED boost converter supports two 10-LED strings at 25 mA each with 38-V open-LED protection and internally generated PWM dimming (100–1000 Hz).

Key Specifications

Parameter	Value and Actual Design Meaning
DC/DC Output Current	1.2 A per buck converter (DCDC1–DCDC3); supports VDD_CORE, VDDS_DDR, and VDDSHVx loads without external current boosting.
Switching Frequency	2.25 MHz fixed; enables use of compact 1.5–2.2 µH inductors and ≤22 µF ceramic output capacitors for space-constrained portable designs.
LDO Output Range	LDO1: 1.0–3.3 V; LDO2: 0.9–3.3 V; both I²C-programmable in 25-mV steps for precise ADC reference or PLL supply tuning.
WLED Driver Capability	Supports two independent LED strings up to 10 LEDs each at 25 mA; includes 38-V overvoltage protection and internal low-side current sinks.
Battery Charger	Linear charger with 700-mA max charge current, 4.1–4.25-V regulation, and safety timers; compatible with single-cell Li-ion/Li-polymer batteries.
I²C Interface	Address 0x24; password-protected register access prevents unauthorized configuration changes during system operation or field updates.
Operating Temperature	–40°C to +105°C ambient; qualified for industrial embedded applications including 5-V industrial equipment and portable navigation systems.

Pinout & Package

The TPS652170 is housed in a 48-pin VQFN package (6.0 mm × 6.0 mm, 0.4-mm pitch) with exposed thermal pad connected to PGND for enhanced thermal performance in high-power-density layouts.

Pin/Terminal	Circuit Role	Design Meaning
VIN_DCDC1 / VIN_DCDC2 / VIN_DCDC3	DC/DC input supply	Must be tied to SYS pin; provides common input source for all three buck regulators, simplifying layout and reducing input filtering components.
L1 / L2 / L3	Buck switch node	Connects to respective inductor; requires low-ESR ceramic capacitor (10–22 µF) and 1.5–2.2 µH inductor per channel for stable 2.25-MHz operation.
VLDO1 / VLDO2	LDO output	Programmable outputs for precision analog supplies (e.g., VDDA_ADC, VDDS_PLL); each supports 100-mA load with ±2% accuracy and 200-mV dropout at full load.
LS1_IN / LS1_OUT / LS2_IN / LS2_OUT	Load switch I/O	Configurable as LDOs (1.5–3.3 V) or load switches (1.8–5.8 V); supports 200-mA output when used as LDOs, 200-mA short-circuit protected switching when used as load switches.
SCL / SDA	I²C interface	Standard two-wire bus (address 0x24); supports password-protected register writes to prevent accidental reconfiguration of power sequencing or protection thresholds.
BAT_SENSE	Battery voltage monitoring	Direct connection to battery terminal enables accurate state-of-charge estimation and undervoltage lockout (UVLO) with 2% accuracy across temperature.

Key Features

Feature	Design Value
Triple 2.25-MHz Buck Converters	Enables compact, high-efficiency core/memory/I/O power delivery with minimal external components-no need for external compensation or frequency setting resistors.
Programmable UVLO & DPPM Thresholds	I²C-configurable undervoltage lockout (2.73–3.30 V) and dynamic power path management (3.5–4.25 V) prevent brownouts during battery depletion or input transitions.
Thermal Regulation & Safety Timers	Automatically reduces charge current above 111–123°C junction temperature; includes 4–8-h charge safety timer and 30–60-min precharge timer to prevent battery damage.
WLED Boost with Internal PWM	Eliminates need for external PWM generator; supports 100–1000-Hz dimming via I²C register control and provides 38-V open-LED fault detection for robust backlight management.
Always-On Push-Button Monitor	Dedicated PB_IN pin with 8-s hard-reset detection and 50-ms deglitch enables reliable system wake-up and controlled shutdown without host processor intervention.

Applications

AM335x Processor Power	Portable Navigation Systems
Use Scenario: Powers Sitara AM335x SoC in automotive-grade navigation units requiring DDR3L memory, USB connectivity, and extended temperature operation. IC Role / Device Role / Timing Role: Delivers sequenced VDD_CORE (1.1 V), VDDS_DDR (1.35 V), VDDSHVx (1.8 V/3.3 V), and VDDA_ADC (1.8 V) rails with tight regulation and fast transient response. Use Value: Integrates all power functions into one 6-mm × 6-mm package-reducing BOM count by >12 discrete regulators and eliminating external sequencing logic.	Use Scenario: Used in handheld GPS devices with Li-ion battery, USB charging, and dual-string WLED backlight. IC Role / Device Role / Timing Role: Manages battery charging, SYS rail generation, and WLED dimming while monitoring battery temperature via NTC thermistor on TS pin. Use Value: Enables single-chip solution for battery charging, multi-rail power, and display backlight-cutting PCB area by 35% versus discrete PMU + charger + LED driver approach.
Industrial Tablet Computing	5-V Industrial Equipment
Use Scenario: Powers ruggedized tablets operating from 5-V AC adapter or USB-C PD source in factory automation environments. IC Role / Device Role / Timing Role: Provides dual-input power path with 20-V tolerant USB/AC inputs, automatic source selection, and DPPM to maintain SYS voltage during high-current transients. Use Value: Ensures uninterrupted operation during hot-swap of power sources-critical for HMI panels where downtime causes production delays.	Use Scenario: Supplies control logic, sensors, and communication interfaces (USB, I²C) in DIN-rail mounted 5-V powered industrial controllers. IC Role / Device Role / Timing Role: Generates isolated 3.3-V (LDO1), 1.8-V (DCDC3), and 1.1-V (DCDC1) rails from unregulated 5-V input while monitoring input faults via PGOOD and nINT signals. Use Value: Replaces legacy multi-IC power solutions with integrated protection (UVLO, OVP, thermal shutdown) and diagnostics-reducing qualification time by 40%.

AM335x Processor Power

Portable Navigation Systems

Use Scenario: Powers Sitara AM335x SoC in automotive-grade navigation units requiring DDR3L memory, USB connectivity, and extended temperature operation.

IC Role / Device Role / Timing Role: Delivers sequenced VDD_CORE (1.1 V), VDDS_DDR (1.35 V), VDDSHVx (1.8 V/3.3 V), and VDDA_ADC (1.8 V) rails with tight regulation and fast transient response.

Use Value: Integrates all power functions into one 6-mm × 6-mm package-reducing BOM count by >12 discrete regulators and eliminating external sequencing logic.

Use Scenario: Used in handheld GPS devices with Li-ion battery, USB charging, and dual-string WLED backlight.

IC Role / Device Role / Timing Role: Manages battery charging, SYS rail generation, and WLED dimming while monitoring battery temperature via NTC thermistor on TS pin.

Use Value: Enables single-chip solution for battery charging, multi-rail power, and display backlight-cutting PCB area by 35% versus discrete PMU + charger + LED driver approach.

Industrial Tablet Computing

5-V Industrial Equipment

Use Scenario: Powers ruggedized tablets operating from 5-V AC adapter or USB-C PD source in factory automation environments.

IC Role / Device Role / Timing Role: Provides dual-input power path with 20-V tolerant USB/AC inputs, automatic source selection, and DPPM to maintain SYS voltage during high-current transients.

Use Value: Ensures uninterrupted operation during hot-swap of power sources-critical for HMI panels where downtime causes production delays.

Use Scenario: Supplies control logic, sensors, and communication interfaces (USB, I²C) in DIN-rail mounted 5-V powered industrial controllers.

IC Role / Device Role / Timing Role: Generates isolated 3.3-V (LDO1), 1.8-V (DCDC3), and 1.1-V (DCDC1) rails from unregulated 5-V input while monitoring input faults via PGOOD and nINT signals.

Use Value: Replaces legacy multi-IC power solutions with integrated protection (UVLO, OVP, thermal shutdown) and diagnostics-reducing qualification time by 40%.

Equivalent & Alternatives

The following parts are listed as comparable options for similar PMIC applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
TPS65217C	Same pinout and feature set but lacks WLED boost driver and has reduced I²C register protection; no password-protected registers.	Targeted at cost-sensitive AM335x designs without display backlight requirements.	Select TPS65217C only if WLED functionality is unused and simplified register security suffices.
TPS65217D	Includes WLED driver and password-protected registers like TPS652170, but rated for –40°C to +85°C (not +105°C) and lacks thermal regulation in charger.	Suitable for commercial-grade tablets and consumer navigation where extended temperature range is not required.	Choose TPS65217D for lower-cost alternatives in non-industrial environments; avoid for 105°C-rated applications.

Compared with TPS65217C and TPS65217D, the TPS652170 uniquely combines industrial temperature rating (+105°C), full thermal regulation in charging, and password-protected I²C-making it the only option qualified for mission-critical 5-V industrial equipment and automotive-adjacent portable navigation systems.

Availability

TPS652170 is available at Aetrix Electronics and suitable for Sitara AM335x processor power, portable navigation systems, and 5-V industrial equipment requiring stable component supply, long-term lifecycle support, and guaranteed traceability.

Supply support for TPS652170 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and power management technologies, with decades of expertise in high-reliability industrial and automotive power solutions.

The TPS652170 belongs to TI's Sitara-optimized PMIC product line, engineered specifically to simplify power architecture for ARM Cortex-A8-based systems-reducing design risk, layout complexity, and time-to-market for battery-powered and 5-V line-powered embedded applications.

FAQ

What is the primary application target for the TPS652170?

The TPS652170 is primarily designed to power Texas Instruments' Sitara AM335x ARM Cortex-A8 processors in portable and 5-V line-powered systems. It delivers tightly regulated core (VDD_CORE), memory (VDDS_DDR, VTT, VREFCA), and I/O (VDDSHVx) rails while integrating battery charging, USB/AC power path management, and WLED backlight driving-all within a single 6-mm × 6-mm VQFN-48 package. Its –40°C to +105°C rating makes the TPS652170 especially suited for industrial tablets and rugged navigation equipment.

Does the TPS652170 support DDR3L memory voltage requirements?

Yes, the TPS652170 directly supports DDR3L memory voltage requirements through its programmable DCDC3 buck converter, which can be configured to output 1.35 V (±2%) with up to 1.2 A continuous current-matching DDR3L VDDQ specifications. Its VTT and VREFCA rails are derived from the same regulated output, ensuring tracking accuracy critical for DDR signal integrity. The TPS652170 datasheet explicitly lists "DDR3 or DDR3L" and "VTT, VREFCA" among supported functions.

How does the TPS652170 handle power source transitions between USB and AC adapter?

The TPS652170 uses an integrated dual-input power path with automatic source selection and 150-µs switching time between AC and USB inputs. It monitors VAC and VUSB relative to battery voltage using programmable thresholds (VIN(DT) = 190 mV, VIN(NDT) = 125 mV) and applies deglitching (22.5 ms) to prevent false detection. When both sources are present, the higher-priority source (configurable via I²C) powers SYS; during transitions, the 2-A power path ensures uninterrupted system operation without brownout. This behavior is confirmed in the TPS652170 electrical characteristics table under "POWER PATH TIMING".

Can the TPS652170's LDOs be used to power analog subsystems like ADCs or oscillators?

Yes, the TPS652170's LDO1 and LDO2 are specifically designed for noise-sensitive analog subsystems. LDO1 (1.0–3.3 V, ±2% accuracy, 100-mA max) and LDO2 (0.9–3.3 V, ±2% accuracy) provide low-noise, well-regulated supplies ideal for VDDA_ADC, VDDS_OSC, VDDS_PLL, and VDDS_SRAM rails. Their typical 15-µA quiescent current and 200-mV dropout at 100 mA ensure efficiency and stability. The TPS652170 datasheet explicitly lists "VDDA_ADC, VDDS_OSC, VDDS_PLL, VDDS_SRAM" as supported outputs.

What thermal management features does the TPS652170 include for battery charging?

The TPS652170 includes comprehensive thermal management for battery charging: a dedicated TS pin for NTC thermistor monitoring (supporting 10-kΩ and 100-kΩ types), junction temperature regulation that reduces charge current above 111–123°C, and independent charge safety timers (4–8 h) and precharge timers (30–60 min). These features are documented in the "Battery Charger" and "Thermal Regulation" sections of the TPS652170 datasheet, with measured TJ(REG) values and timer ranges provided in Table 6.5. The thermal pad in the VQFN-48 package further enhances heat dissipation.

TPS652170RSLT Specifications

Product attributes: Attribute value

Manufacturer:: Texas Instruments

Series:: -

Package/Case:: 48-VFQFN Exposed Pad

Packaging:: Tape & Reel (TR)

Product Status:: Active

Applications:: Battery Management

Current - Supply:: 15µA

Voltage - Supply:: 4.3V ~ 5.8V

Operating Temperature:: -40°C ~ 105°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 48-VQFN (6x6)

TPS652170RSLT FAQ

1.How can I place an order for TPS652170RSLT through Aetrix?

Please submit a Request for Quotation (RFQ) for TPS652170RSLT on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for TPS652170RSLT reliable?

The price and inventory of TPS652170RSLT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS652170RSLT is usually 5 days.

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TPS652170RSLT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TPS652170RSLT order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for TPS652170RSLT?

For technical support, including TPS652170RSLT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS652170RSLT requirements.

6.How does Aetrix verify that TPS652170RSLT is sourced from the original manufacturer or authorized distributors?

All TPS652170RSLT products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that TPS652170RSLT meets industry standards.

7.What is the process for return or replacement of TPS652170RSLT?

All TPS652170RSLT units undergo pre-shipment inspection (PSI). If there is an issue with TPS652170RSLT, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The TPS652170RSLT part is unused and in its original packaging.

Return procedure for TPS652170RSLT:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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