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The TPS61252DSGR from Texas Instruments is a compact, high-efficiency 1.5-A boost converter designed for battery-powered systems that require stable and efficient voltage step-up.
Operating from 2.3 V to 6.0 V, it supports output voltages up to 6.5 V and features a programmable input current limit, allowing designers to fine-tune current draw for both performance and system protection.
With a 3.25 MHz switching frequency, integrated Power Good indicator, load disconnect, reverse current blocking, and ultra-low quiescent current, the TPS61252DSGR is optimised for portable applications such as USB-powered devices, low-power embedded systems, RF modules, audio products, and battery-operated consumer electronics.
Let’s take a closer look at what makes this boost converter a reliable and efficient choice for modern power systems.
Key Features of the TPS61252DSGR
Adjustable Input Current Limit (100 mA to 1.5 A)
Configured via a single resistor on the ILIM pin, with ±20% accuracy at 500 mA.
Wide Operating Input Range: 2.3 V to 6.0 V
Perfect for single-cell Li-ion or multi-cell NiMH/NiCd battery applications.
High Efficiency up to 92%
Automatic PFM mode at light loads reduces power consumption (quiescent current only 30 µA).
Output Voltage up to 6.5 V
Supports a 100% duty cycle when the VIN approaches the VOUT.
Integrated Load Disconnect & Reverse Current Protection
Prevents battery drain and blocks unwanted backflow from output to input.
Power Good Output (PG)
The open-drain PG pin indicates that VOUT is at least 95% of the target voltage.
Softstart for Safe Power-Up
Controls inrush current and provides a smooth startup.
Fast 3.25 MHz Switching Frequency
Allows for the use of small inductors and capacitors, enabling compact layout designs.
Ultra-Compact WSON-8 (DSG) Package – 2 × 2 mm
Small footprint with an exposed thermal pad for improved heat dissipation.
Applications of the ADV7173KSTZ‑REEL
- USB 3.0 docking stations & port replicators
- Monitors and display hubs
- Set-top boxes & media players
- Industrial USB expansion modules
- PC motherboards & embedded systems
- Printers, scanners, and imaging equipment
- Multi-function consumer devices