Packaging information
| Package | Pins WQFN (RTE) | 16 |
| Operating temperature range (°C) -40 to 125 |
| Package qty | Carrier 3,000 | LARGE T&R |
Features for the TPS61391
- 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
- High optical power protection with 0.5-µs response time
- Switching frequency: 700 kHz
- Quiescent current: 110 µA from VIN, 340 µA from VOUT, 140 µA from AVCC
- Soft-start time: 4.8 ms
- Package: 3 mm × 3 mm × 0.75 mm QFN
Description for the TPS61391
The TPS61391 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 TPS61391 includes accurate current mirror with two gain options selectable (1 : 5 or 4 : 5).
The TPS61391 also provides high optical-power protection with an additional FET in series with the APD power path with the typical response time of 0.5 µs . It can recover automatically once the high optical releasing.
The TPS61391 is available in 3 mm × 3 mm QFN package with exposed pad underneath.