TPS61390 Description
The TPS61390 is a 700-kHz pulse-width modulating (PWM) step-up converter with an 85-V switch FET with an input ranging from 2.5 V to 5.5 V. The switching peak current is up to 1000 mA. The TPS61390 includes accurate current mirror with two gain options selectable (1.
TPS61390 Key Features
- 1 Input voltage range: 2.5 V to 5.5 V
- Output voltage range: up to 85 V
- R(DS)on of switching FET: 0.9 Ω
- Switch current limit: 1000 mA
- Sample window with minimum 400-ns
- High optical power protection with 0.5-µs
- Switching frequency: 700 kHz
- Quiescent current: 110 µA from VIN, 340 µA from
- Soft-start time: 4.8 ms
- Package: 3 mm × 3 mm × 0.75 mm QFN