TPS63802DLAR.pdf

Texas Instruments TPS6380x High Efficiency Buck-Boost Converters

Texas Instruments TPS6380x High Efficiency Buck-Boost Converter is a high-efficiency, high output current buck-boost converter. The device can be used with input voltages above, equal to, or below the output voltage. The device supports up to 2A of output current over a wide voltage range. The TPS6380x has a peak current limit of 4.5A and 3.5A in boost mode and buck mode, respectively. The device regulates to the programmed output voltage. Depending on the input voltage, the TPS6380x can automatically switch from buck to boost operation. If the input voltage is approximately equal to the output voltage, the device will remain in buck/boost mode for 3 cycles. The device enables seamless transitions, avoiding unnecessary mode switches. The TPS6380x is available in a 1.4mm x 2.3mm package. The device works with tiny passive components, keeping the overall solution size small.

CHARACTERISTIC

Input voltage range: 1.3V to 5.5V (device start-up, voltage greater than 1.8V)

Adjustable Output Voltage Range: 1.8V to 5V

When V IN ≥ 2.3V, V OUT = 3.3V, the output current is 2A

High efficiency over the entire load range

Static working current: 11μA

Power saving mode with mode selection

Peak Current Buck-Boost Mode Architecture

Seamless transitions within run modes

Wide selection of output capacitors

Forward and reverse current operation

safe and reliable operation

Integrated soft start

Overheat and overvoltage protection

True shutdown function with load disconnect

Small solution size

1.4mm x 2.3mm package size

Small 0.47µH Inductor, Single 22µF Output Capacitor

FUNCTIONAL BLOCK DIAGRAM

Block Diagram - Texas Instruments TPS6380x High Efficiency Buck-Boost Converter