TPS63900
Overview
The TPS63900 device is a high-efficiency synchronous buck-boost converter with an extremely low quiescent current (75 nA typical). The device has 32 user-programmable output voltage settings from 1.8 V to 5 V.
- Input voltage range: 1.8 V to 5.5 V
- Output voltage range: 1.8 V to 5 V (100-mV steps) - Programmable with external resistors - SEL pin to toggle between two output voltage presets
- > 400-mA output current for VI ≥ 2.0 V, VO = 3.3 V (typical 1.45-A peak switching current limit) - Stackable: parallel multiple devices for higher output current
- > 90% Efficiency at 10-µA load current - 75-nA quiescent current - 60-nA shutdown current
- Single-mode operation - Eliminates mode transitions between buck, buck-boost and boost operation - Low output ripple - Excellent transient performance
- Safety and robust operation features - Integrated soft start - Programmable input current limit with eight settings (1 mA to 100 mA and unlimited) - Output short-circuit and overtemperature protection
- Tiny solution size of 21-mm2 - Small 2.2-µH inductor, single 22-µF output capacitor - 10-Pin, 2.5-mm × 2.5-mm, 0.5-mm pitch WSON package
