The TPS61391 is a step-up converter with the current mirror and sample / hold circuitry being integrated, which is designed for biasing and monitoring the avalanche photodiodes (APD) in the optical receivers. The TPS61391 supports up to 85-V output from an input ranging from 2.5 V to 5.5 V. The switching peak current is up to 1000 mA and the switching frequency is 700kHz.
Features
- Input voltage range: 2.5 V to 5.5 V
- Output voltage range: up to 85 V
- High optical power protection with 0.5-μs response time
- Switching frequency: 700kHz