TPS631000 Series

1.5-A output current, high-power-density buck-boost converter

Catalog

1.5-A output current, high-power-density buck-boost converter

Part	Current - Output (Max) [Max]	Supplier Device Package	Operating Temperature [Max]	Operating Temperature [Min]	Voltage - Output 1 [Max]	Voltage - Output 1 [Min]	Voltage - Input (Max) [Max]	Package / Case	Type	Size / Dimension [x]	Size / Dimension [y]	Size / Dimension [x]	Size / Dimension [y]	Size / Dimension [z]	Size / Dimension [z]	Control Features	Number of Outputs	Voltage - Input (Min) [Min]	Features	Mounting Type
Texas Instruments TPS631000DRLR	2 A	SOT-583	125 °C	-40 °C	5.3 V	1.2 V	5.5 V	SOT-583	Non-Isolated PoL Module	0.08 "	1.2 mm	2.1 mm	0.05 "	0.02 "	0.6 mm	Active High Enable	1	1.6 V	Adjustable Output Remote On/Off	Surface Mount

Catalog

1.5-A output current, high-power-density buck-boost converter

Key Features

• 1.6-V to 5.5-V input voltage rangeDevice input voltage > 1.65 V for start-up1.2-V to 5.3-V output voltage range (adjustable)High output current capability, 3-A peak switch current2-A output current for VIN≥ 3 V, VOUT= 3.3 V1.5-A output current for VIN≥ 2.7 V, VOUT= 3.3 VHigh efficiency over the entire load range8-µA typical quiescent currentPower save mode150-mV load-step response at a 1-A current stepPeak current buck-boost mode architectureSeamless mode transition with < 20-mV output rippleForward and reverse current operationStart-up into pre-biased outputsFixed-frequency operation with 2-MHz 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 inductorWorks with one 0805 output capacitor over the full VOUTrangeCreate a custom design using the TPS631000 with theWEBENCH Power Designer1.6-V to 5.5-V input voltage rangeDevice input voltage > 1.65 V for start-up1.2-V to 5.3-V output voltage range (adjustable)High output current capability, 3-A peak switch current2-A output current for VIN≥ 3 V, VOUT= 3.3 V1.5-A output current for VIN≥ 2.7 V, VOUT= 3.3 VHigh efficiency over the entire load range8-µA typical quiescent currentPower save mode150-mV load-step response at a 1-A current stepPeak current buck-boost mode architectureSeamless mode transition with < 20-mV output rippleForward and reverse current operationStart-up into pre-biased outputsFixed-frequency operation with 2-MHz 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 inductorWorks with one 0805 output capacitor over the full VOUTrangeCreate a custom design using the TPS631000 with theWEBENCH Power Designer

Description

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 5.5-V input voltage range. The TPS631000 provides a power supply solution for system pre-regulators and voltage stabilizers. Depending on the input voltage, the TPS631000 automatically operates 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 TPS631000 offers a very small solution size with a 1.2-mm × 2.1-mm SOT-583 package, a 1-µH inductor, and one 0805 output capacitor. 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 5.5-V input voltage range. The TPS631000 provides a power supply solution for system pre-regulators and voltage stabilizers. Depending on the input voltage, the TPS631000 automatically operates 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 TPS631000 offers a very small solution size with a 1.2-mm × 2.1-mm SOT-583 package, a 1-µH inductor, and one 0805 output capacitor.