TPS631000
Overview
The TPS631000 is a constant frequency peak current mode control buck-boost converter. The device has a 3-A peak current limit (typical) and 1.6-V to 5.5V input voltage range.
- 1.6-V to 5.5-V input voltage range - Device input voltage > 1.65 V for start-up
- 1.2-V to 5.3-V output voltage range (adjustable)
- High output current capability, 3-A peak switch current - 2-A output current for VIN ≥ 3 V, VOUT = 3.3 V - 1.5-A output current for VIN ≥ 2.7 V, VOUT = 3.3 V
- High efficiency over the entire load range - 8-μA typical quiescent current - Power save mode
- 150-mV load-step response at a 1-A current step
- Peak current buck-boost mode architecture - Seamless mode transition with < 20-mV output ripple - Forward and reverse current operation - Start-up into pre-biased outputs - Fixed-frequency operation with 2-MHz switching
- Safety and robust operation features - Overcurrent protection and short-circuit protection - Integrated soft start with active ramp adoption - Overtemperature protection and overvoltage protection - True shutdown function with load disconnect - Forward and backward current limit
- Small solution size - Small 1-µH inductor - Works with one 0805 output capacitor over the full VOUT range
- Create a custom design using the TPS631000 with the WEBENCH® Power Designer L1 VI CI LX1 VIN LX2 VOUT VO CO VEXT To/From System MODE FB EN GND
