TPS61289 Overview
Description
VLOW voltage range: 0.5V to 23V The TPS61289 is a bidirectional buck/boost – 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 – FSW 250kHz when VLOW > 1.7V – FSW down to 100kHz when VLOW < 1.5V – FSW down to 50kHz when VLOW < 0.5V – 200mV hysteresis prevents frequency jitter - Synchronization capability to external clock - Rich protection synchronous converter that integrates the high-side synchronous rectifier MOSFET and uses an external low side MOSFET. The TPS61289 can be configured as a buck or boost converter using the MODE pin.
