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TPS63020

TITPS63020

Texas Instruments
2 A buck-boost regulator suitable for systems that need step-up/step-down capability around a single-cell Li-ion voltage.
NRND33,702 in stock
Datasheet Digi-Key Mouser Compare Prices

Overview

The TPS63020 is a high-efficiency buck-boost regulator designed for systems powered by a single-cell Li-ion, Li-poly, or multi-cell alkaline battery where the input voltage can be higher or lower than the output voltage. It features an average current mode architecture that enables seamless transitions between buck and boost modes while providing up to 4A of output current. Operating at a fixed 2.4 MHz switching frequency, it allows for the use of small external inductors and capacitors.

Why Choose This Part

The device offers an extremely low shutdown current of 0.1 uA and a power save mode that maintains high efficiency during light load operation. Its 2.4 MHz switching frequency minimizes the PCB footprint, and the integrated power good output simplifies power sequencing for downstream microcontrollers.

Applications

Single-Cell Li-ion Systems
Maintains a stable 3.3V or 5V rail even as the battery voltage drops from 4.2V down to 2.5V or below.
USB-Powered Devices
Regulates 5V USB power that may fluctuate due to long cables or varying port quality into a precise system voltage.
High-Current Portable Electronics
Provides the high burst current required by RF power amplifiers or motorized components in hand-held devices.

Key Specifications

Function Step-Up/Step-Down
Topology Buck-Boost
Output Type Adjustable
Mounting Type Surface Mount
Package / Case 14-VFDFN Exposed Pad
Current - Output 3.5A (Switch)
Number of Outputs 1
Output Configuration Positive
Frequency - Switching 2.4MHz
Operating Temperature -40degC ~ 85degC (TA)
Synchronous Rectifier Yes
Voltage - Input (Max) 5.5V
Voltage - Input (Min) 1.8V
Voltage - Output (Max) 5.5V
Supplier Device Package 14-VSON (4x3)
Voltage - Output (Min/Fixed) 1.2V

Getting Started

For rapid prototyping, utilize the TPS63020EVM-487 evaluation module to test transient response and efficiency across different load conditions. When designing the PCB, place the input and output capacitors as close as possible to the IC pins to minimize parasitic inductance, and ensure the thermal pad is soldered to a large ground plane for heat dissipation.

TPS63020 Family

Part NumberDifferenceStock
TPS63020DSJT DSJT 7,320

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