Texas Instruments TPS563202SDRLR

Overview

TPS563202SDRLR from Texas Instruments is a 3-A synchronous buck DC-DC converter in SOT563 (DRL) package, featuring D-CAP2™ control architecture, ECO mode for light-load efficiency, 4.3–17-V input range, and 0.806–7-V adjustable output voltage. It integrates 95-mΩ high-side and 57-mΩ low-side MOSFETs and delivers fast transient response in TV power supplies, smart speakers, and wired networking equipment.

For engineers reviewing the TPS563202SDRLR datasheet, TPS563202SDRLR pinout, TPS563202SDRLR application, or TPS563202SDRLR equivalent, key selection considerations include its 580-kHz switching frequency, 1.5% feedback voltage accuracy at 25°C, cycle-by-cycle overcurrent protection, hiccup-mode fault recovery, and support for pre-bias start-up in compact embedded power designs.

Technical Context

The TPS563202SDRLR implements adaptive on-time D-CAP2™ control with internal compensation, enabling stable operation with ultra-low-ESR ceramic or polymer output capacitors without external loop components. Its control loop senses output ripple via an internal ramp, eliminating dependency on capacitor ESR for stability.

ECO mode dynamically reduces switching frequency under light load by entering discontinuous conduction mode (DCM), maintaining high efficiency down to µA-level output currents. Thermal shutdown (172°C) and non-latching UVLO (4.3 V turn-on, 3.6 V shutdown) ensure robust system-level protection across –40°C to 125°C junction temperature.

Key Specifications

Pinout & Package

SOT563 (DRL) package: 6-pin, 1.6 mm × 1.6 mm body size, 0.5-mm pitch, thermally enhanced exposed pad (GND-connected).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar synchronous buck converter applications.

Compared with TPS563202SDRLR, TPS563207SDRLR trades light-load efficiency for EMI predictability, while MP2332HGTL-Z offers wider input range but requires external compensation and lacks pre-bias support-making TPS563202SDRLR optimal for space-constrained, low-quiescent consumer electronics demanding fast transient response and seamless startup.

Availability

TPS563202SDRLR is available at Aetrix Electronics and suitable for TV power supplies, smart speaker subsystems, and wired networking equipment requiring stable component supply, consistent parametric performance, and long-term production continuity.

Supply support for TPS563202SDRLR 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-efficiency DC-DC conversion.

The TPS563202SDRLR belongs to TI's D-CAP2™ synchronous buck converter product line, engineered specifically for compact, high-transient-response power delivery in consumer audio/video and connected home devices.

FAQ

What is the recommended input capacitor configuration for TPS563202SDRLR?

TI recommends a minimum 10-µF X5R/X7R ceramic capacitor placed adjacent to the VIN and GND pins of the TPS563202SDRLR, plus an optional 0.1-µF high-frequency ceramic capacitor from pin 3 (GND) to further suppress switching noise. The capacitor voltage rating must exceed the maximum input voltage (≥20 V for 17-V max operation). This configuration ensures low-impedance input paths and stable operation across the full 4.3–17-V input range.

Does TPS563202SDRLR support output voltages below 1 V?

Yes, the TPS563202SDRLR supports output voltages as low as 0.806 V using an external resistor divider on the FB pin. The device's 1.5% feedback voltage accuracy at 25°C and ±0.1 µA FB input current enable precise low-voltage regulation-critical for modern SoC core rails. For example, a 1.05-V output is commonly implemented with 3.0-kΩ top and 10.0-kΩ bottom resistors per TI's reference design.

How does ECO mode affect the switching frequency of TPS563202SDRLR under light load?

In ECO mode, the TPS563202SDRLR reduces switching frequency proportionally to output current-dropping from ~580 kHz in continuous conduction mode (CCM) to tens of kHz at 10-mA load. This frequency scaling minimizes switching losses and sustains >85% efficiency at light loads, unlike fixed-frequency alternatives. The transition occurs automatically when inductor valley current reaches zero, with no external control required.

Can TPS563202SDRLR start up into a pre-biased output capacitor?

Yes, the TPS563202SDRLR supports pre-bias start-up: when the FB voltage exceeds the internal reference at power-on, the device delays switching until the internal soft-start ramp surpasses the existing output voltage. This prevents reverse current flow through the low-side FET and avoids output voltage collapse-enabling safe integration in multi-rail systems where other regulators may already be active.

What thermal performance can be expected from TPS563202SDRLR in a standard 2-layer PCB layout?

On a standard 2-layer PCB with 2-oz copper (TI EVM conditions), the TPS563202SDRLR achieves an effective junction-to-ambient thermal resistance (R_{θJA_effective}) of 65.0°C/W. At 3-A load and 12-V input, this allows operation up to ~125°C junction temperature with appropriate copper pour and thermal vias-eliminating need for heatsinks in most consumer applications. The exposed pad must be soldered to a GND plane for optimal heat transfer.