TPS631010YBGR

The TPS631010 and TPS631011 are constant frequency peak current mode control buck - boost converters in tiny wafer chip scale package. They have a 3 - A peak current limit (typical) and 1.6 - V to 5.5 - V input voltage range, and provide a power supply solution for system pre - regulators and voltage stabilizers. Depending on the input voltage, the TPS631010 and TPS631011 automatically operate in boost, buck, or in 3 - cycle buck - boost mode when the input voltage is approximately equal to the output voltage. The transitions between modes happen at a defined duty cycle and avoid unwanted toggling within the modes to reduce output voltage ripple. 8 - μA quiescent current and power save mode power enable the highest efficiency for light to no - load conditions. The devices offer a very small solution size in WCSP.

Applications

• TWS
• System pre - regulator (smartphone, tablet, terminal, telematics)
• Point - of - load regulation (wired sensor, port/cable adapter, and dongle)
• Fingerprint, camera sensors (electronic smart lock, IP network camera)
• Voltage stabilizer (datacom, optical modules, cooling/heating)

Key features

• 1.6 - V to 5.5 - V input voltage range
• Device input voltage >1.65 V for start - up
• 1.2 - V to 5.5 - 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
• Active output discharge (TPS631011 only)
• High efficiency over the entire load range
• 8 - μA typical quiescent current
• Automatic power save mode and forced PWM mode configurable
• Peak current buck - boost mode architecture
• Seamless mode transition
• 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 1.803–mm × 0.905–mm in WCSP