TPS61289 Datasheet | Texas Instruments

Features 3 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 250k Hz when VLOW > 1.7V - FSW down to 100k Hz when VLOW < 1.5V - FSW down to 50k Hz when VLOW < 0.5V - 200m V 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. The TPS61289 can support 20A switching current and the VHIGH voltage supports up to 25V. The minimum VLOW voltage is determined by the VLOW/VHIGH ratio and frequency, for example, the VLOW voltage can support as low as 0.5V at the VHIGH = 15V condition. The device provides an excellent balance of efficiency, thermal dissipation and solution size for high power bidirectional conversion. The TPS61289 offers adjustable switching current limit function. In addition, the device provides VHIGH overvoltage and undervoltage protection, cycle-by- - VHIGH overvoltage protection at 27V cycle overcurrent protection, and thermal shutdown - 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 Hot Rod™ Lite package protection. The TPS61289 offers a very small solution size with 2.5mm x 3.0mm VQFN Hot Rod™ Lite package with minimal external ponents. Package Information 2 Applications - Battery Testing System (BTS) - Super-cap or battery backup power converter - USB Type-C® power delivery PART NUMBER...