TPS631011 Series

1.5-A output current buck-boost converter

Catalog

1.5-A output current buck-boost converter

Part	Voltage - Input (Min) [Min]	Voltage - Output (Max) [Max]	Synchronous Rectifier	Voltage - Input (Max) [Max]	Current - Output	Frequency - Switching	Voltage - Output (Min/Fixed)	Output Type	Supplier Device Package	Topology	Mounting Type	Number of Outputs	Function	Package / Case	Operating Temperature [Min]	Operating Temperature [Max]	Output Configuration
Texas Instruments TPS631011YBGR	1.6 V	5.5 V		5.5 V	2 A	2 MHz	1.2 V	Adjustable	8-DSBGA (1.6x1.1)	Buck	Surface Mount	1	Step-Down	8-XFBGA DSBGA	-40 °C	125 ¯C	Positive

Catalog

1.5-A output current buck-boost converter

Key Features

• 1.6V to 5.5V input voltage rangeDevice input voltage > 1.65V for start-up1.2V to 5.5V output voltage range(adjustable)1.0V VOUT is supported in PFM modeHigh output current capability, 3A peak switch current2A output current for VIN ≥ 3V, VOUT = 3.3V1.5A output current for VIN ≥ 2.7V, VOUT = 3.3VActive output discharge (TPS631011 only)High efficiency over the entire load range8µA typical quiescent currentAutomatic power save mode and forced PWM mode configurablePeak current buck-boost mode architectureSeamless mode transitionForward and reverse current operationStart-up into pre-biased outputsFixed-frequency operation with 2MHz switchingSafety and robust operation featuresOvercurrent protection and short-circuit protectionIntegrated soft start with active ramp adoptionOvertemperature protection and overvoltage protectionTrue shutdown function with load disconnectForward and backward current limitSmall solution sizeSmall 1-µH inductor1.803mm × 0.905mm in WCSP1.6V to 5.5V input voltage rangeDevice input voltage > 1.65V for start-up1.2V to 5.5V output voltage range(adjustable)1.0V VOUT is supported in PFM modeHigh output current capability, 3A peak switch current2A output current for VIN ≥ 3V, VOUT = 3.3V1.5A output current for VIN ≥ 2.7V, VOUT = 3.3VActive output discharge (TPS631011 only)High efficiency over the entire load range8µA typical quiescent currentAutomatic power save mode and forced PWM mode configurablePeak current buck-boost mode architectureSeamless mode transitionForward and reverse current operationStart-up into pre-biased outputsFixed-frequency operation with 2MHz switchingSafety and robust operation featuresOvercurrent protection and short-circuit protectionIntegrated soft start with active ramp adoptionOvertemperature protection and overvoltage protectionTrue shutdown function with load disconnectForward and backward current limitSmall solution sizeSmall 1-µH inductor1.803mm × 0.905mm in WCSP

Description

The TPS631010 and TPS631011 are constant frequency peak current mode control buck-boost converters in tiny wafer chip scale package. They have a 3A peak current limit (typical) and 1.6V to 5.5V 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. 8µA quiescent current and power save mode enable the highest efficiency for light to no-load conditions. The devices offer a very small solution size in WCSP. The TPS631010 and TPS631011 are constant frequency peak current mode control buck-boost converters in tiny wafer chip scale package. They have a 3A peak current limit (typical) and 1.6V to 5.5V 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. 8µA quiescent current and power save mode enable the highest efficiency for light to no-load conditions. The devices offer a very small solution size in WCSP.