Texas Instruments TPS62160QDSGRQ1

Overview

TPS62160QDSGRQ1 from Texas Instruments is an automotive-grade synchronous step-down DC-DC converter with DCS-Control™ topology, delivering up to 1-A output current at adjustable voltages from 0.9 V to 6 V across a 3-V to 17-V input range. It features a 2.25-MHz switching frequency, 17-µA quiescent current in Power Save Mode, and integrated power-good (PG) output for rail sequencing in ADAS camera and body control modules.

For engineers reviewing the TPS62160QDSGRQ1 datasheet, TPS62160QDSGRQ1 pinout, TPS62160QDSGRQ1 application, or TPS62160QDSGRQ1 equivalent, key selection criteria include its AEC-Q100 qualification (–40°C to 125°C), seamless PWM-to-Power-Save transition, 100% duty-cycle operation for battery-end-of-life support, and WSON-8 package thermal performance (R_θJB = 35.5°C/W).

Technical Context

The TPS62160QDSGRQ1 implements DCS-Control™-a hybrid regulation architecture combining fast comparator-based AC loop response with voltage feedback for stable DC regulation. Its internal error amplifier and direct-control compensation enable fast transient response while maintaining stability with low-ESR ceramic capacitors and small inductors (e.g., 2.2 µH).

It supports three functional modes: PWM mode (2.25 MHz, continuous conduction), Power Save Mode (frequency scaling with load), and 100% duty-cycle mode (for V_IN near V_OUT). Protection includes undervoltage lockout (2.7 V threshold, 180-mV hysteresis), thermal shutdown (160°C, 20°C hysteresis), short-circuit protection, and open-drain PG signaling with external pullup.

Key Specifications

Pinout & Package

TPS62160QDSGRQ1 is housed in a thermally enhanced 2-mm × 2-mm WSON-8 (DSG) package with exposed thermal pad soldered to AGND for optimal power dissipation.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar step-down converter applications.

Compared with TPS62160QDSGRQ1, TPS62162QDSGRQ1 offers identical performance in a fixed-voltage variant-ideal for cost-sensitive 3.3-V applications-while LM61480QRNXTQ1 trades pin compatibility and PG for higher current and integrated loop compensation, requiring full schematic and layout revision.

Availability

TPS62160QDSGRQ1 is available at Aetrix Electronics and suitable for ADAS camera modules, infotainment telematics gateways, and body control modules requiring stable component supply across automotive production lifecycles.

Supply support for TPS62160QDSGRQ1 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 automotive electronics, with decades of automotive qualification expertise and broad power management portfolio.

The TPS6216x-Q1 product line delivers high-density, high-efficiency DC-DC conversion for safety-critical automotive subsystems-including ADAS, infotainment, and powertrain-where AEC-Q100 compliance, thermal robustness, and functional safety documentation are mandatory.

FAQ

What is the recommended inductor value for TPS62160QDSGRQ1 in a 3.3-V/1-A application?

The TPS62160QDSGRQ1 datasheet specifies 2.2 µH as the standard inductor value for 3.3-V/1-A operation. This value balances ripple current (~300 mA peak-to-peak), transient response, and size-compatible with TDK VLF3012ST-2R2M1R4 (1.9-A saturation current, 3.0 × 2.8 × 1.2 mm). Using this inductor with 10-µF and 22-µF ceramic output capacitors ensures stable DCS-Control™ loop operation per TI's recommended LC filter table.

Does TPS62160QDSGRQ1 support pre-biased output startup?

Yes, TPS62160QDSGRQ1 supports monotonic pre-biased output startup. During start-up into a pre-biased rail, the internal low-side MOSFET remains off until the device's internal ramp voltage exceeds the pre-bias level-preventing reverse current flow and ensuring controlled voltage rise. This behavior is confirmed in Section 8.3.2 of the SLVSCK6B datasheet and is critical for hot-swap and multi-rail sequencing applications.

How does the power-good (PG) pin of TPS62160QDSGRQ1 behave during thermal shutdown?

During thermal shutdown, the TPS62160QDSGRQ1 places the PG pin in high-impedance state-identical to its behavior during EN deactivation or UVLO. This open-drain release allows external pullup resistors to drive the PG signal high, signaling downstream logic that the output is no longer valid. The PG pin resumes normal operation (high/low based on V_OUT regulation) only after junction temperature falls below the 140°C hysteresis threshold and soft-start completes.

Can TPS62160QDSGRQ1 operate with input voltage below 3 V?

No, TPS62160QDSGRQ1 has a minimum operating input voltage of 3 V per its Recommended Operating Conditions. Below this, undervoltage lockout (UVLO) disables switching-its falling-threshold is 2.7 V with 180-mV hysteresis. Attempting operation below 3 V risks unregulated output, excessive dropout, or failure to start; for sub-3-V inputs, consider TI's TPS62864 or similar ultra-low-V_IN converters.

What is the maximum output voltage accuracy of TPS62160QDSGRQ1 in Power Save Mode?

In Power Save Mode, the TPS62160QDSGRQ1 maintains output voltage accuracy within ±4% over temperature and line/load conditions, as specified in Section 7.5 of the SLVSCK6B datasheet. This is slightly relaxed versus ±3% in PWM mode due to reduced switching frequency and control loop bandwidth-but remains sufficient for non-critical digital I/O and analog sensor biasing when combined with adequate output capacitance (e.g., 2 × 22 µF).