The TPS61252DSGR is a compact, high-efficiency boost converter from Texas Instruments (TI), designed for portable and battery-powered applications. It delivers up to 1.5 A output current with adjustable input current limiting, supporting input voltages from 2.3 V to 6.0 V and adjustable output voltages up to 6.5 V. This device is ideal for applications powered by single-cell lithium-ion/polymer batteries or three-series alkaline/NiMH/NiCd batteries, such as mobile phones, USB hosts, audio systems, and computer peripherals.

Key features include:

• High efficiency (up to 92%) with a 3.25 MHz switching frequency, enabling small, cost-effective inductor/capacitor designs.
• Programmable input current limit (100 mA–1.5 A via an external resistor), ensuring compatibility with battery constraints and reducing component stress.
• Ultra-low quiescent current: 30 µA in light-load skip-mode operation and <1 µA in shutdown mode (with output disconnected from the input).
• Built-in protections: overvoltage, overcurrent, short-circuit, reverse-current blocking, and thermal shutdown.
• Tiny 2 mm × 2 mm WSON-8 package for space-constrained designs, operating across a -40°C to 125°C temperature range.

Applications span IoT devices, wearable electronics, and industrial sensors where compact size, efficiency, and battery longevity are critical. Its programmable current-limiting and robust protection features make it a versatile solution for battery-powered systems requiring reliable power delivery.