TPS61021A Overview
Description
The TPS61021A provides a power supply solution for portable or smart devices powered by alkaline, NiMH, Li-Mn, or Li-ion batteries. The TPS61021A is capable of outputting 3.3-V voltage and 1.5-A current from a battery discharged to as low as 1.8 V.
Key Features
- 1 Input Voltage Range: 0.5 V to 4.4 V
- 0.9 V Minimum Input Voltage for Startup
- Output Voltage Setting Range: 1.8 V to 4.0 V
- 91% Efficiency at VIN = 2.4 V, VOUT = 3.3 V and IOUT = 1.5 A
- 2.0-MHz Switching Frequency
- IOUT > 1.5 A at VOUT = 3.3 V when VIN > 1.8 V
- 17-µA Typical Quiescent Current
- ±2.5% Reference Voltage Accuracy over -40°C to 125°C
- PFM Operation Mode at Light Load
- True Disconnection Between Input and Output During Shutdown
