TPS61289 23V_LOW , 25V_HIGH, 20A Bidirectional BUCK/BOOST Converter

1 Features

VLOW voltage range: 0.5V to 23V
- The minimum VLOW voltage is determined by the VLOW/VHIGH ratio and frequency
VHIGH voltage range: 4.5V to 25V
Pin selectable bidirectional buck or boost mode
Buck/boost forced PWM mode operation
High efficiency and power capability
- Programmable current limit: 5A to 20A
- Integrated 8.5mΩ high-side MOSFET
Switching frequency
- F_SW 250kHz when VLOW > 1.7V
- F_SW down to 100kHz when VLOW < 1.5V
- F_SW down to 50kHz when VLOW < 0.5V
- 200mV hysteresis prevents frequency jitter
Synchronization capability to external clock
Rich protection
- VHIGH overvoltage protection at 27V
- VHIGH undervoltage protection at 3.1V
- VCC undervoltage protection at 2.15V
- Precise EN/UVLO threshold
- Cycle-by-cycle overcurrent protection
- Thermal shutdown
2.5mm × 3.0mm VQFN 14 HotRod™ Lite package