TPS63802DLAR.pdf

Features for the TPS63802

Input voltage range: 1.3 V to 5.5 V

Device input voltage > 1.8 V for start-up

Output voltage range: 1.8 V to 5.2 V (adjustable)

2-A output current for VI ≥ 2.3 V, VO = 3.3 V

High efficiency over the entire load range

11-µA operating quiescent current

Power save mode and mode selection for forced PWM-mode

Peak current buck-boost mode architecture

Defined transition points between buck, buck-boost, and boost operation modes

Forward and reverse current operation

Start-up into pre-biased outputs

Safety and robust operation features

Integrated soft start

Overtemperature- and overvoltage-protection

True shutdown function with load disconnect

Forward and backward current limit

Small solution size of 21.5 mm2

Tiny SON/DFN package (similar to QFN)

Small 0.47-µH inductor

Works with a 22-µF minimum output capacitor

Create a custom design using the TPS63802 with the WEBENCH Power Designer

Description for the TPS63802

The TPS63802 is a high efficiency, high output current buck-boost converter. Depending on the input voltage, it automatically operates in boost, buck, or in a novel 4-cycle buck-boost mode when the input voltage is approximately equal to the output voltage. The transitions between modes happen at defined thresholds and avoid unwanted toggling within the modes to reduce output voltage ripple. The device output voltages are individually set by a resistive divider within a wide output voltage range. An 11-µA quiescent current enables the highest efficiency for little to no-load conditions.