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TPS631000DRLR

TITPS631000DRLR

Texas Instruments
Boost, Buck Switching Regulator IC Adjustable 1.2V 1 Output 2A SOT-583
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Overview

The TPS631000DRLR is a high-efficiency buck-boost converter designed for applications where the input voltage can be higher or lower than the output voltage. It operates over an input range of 1.6V to 5.5V and provides a constant output voltage with up to 2A peak switch current. Its low quiescent current of 8 microamps makes it ideal for extending battery life in portable electronics.

Why Choose This Part

The device features an automatic transition between buck and boost modes, ensuring seamless regulation across the full battery voltage range. Its SOT-583 package is extremely small (1.6mm x 2.1mm), reducing PCB footprint while the high 1.5MHz switching frequency allows for the use of small inductors and capacitors.

Applications

Single-Cell Li-ion Battery Power
Maintains a stable 3.3V rail as the battery discharges from 4.2V down to 2.5V.
System Peripherals
Providing regulated power to sensors and communication modules from fluctuating USB or battery sources.
Handheld Medical Devices
Ensures consistent performance in portable pulse oximeters or glucose meters where space and efficiency are critical.

Key Specifications

Function Buck-Boost
Topology Boost, Buck
Output Type Adjustable
Mounting Type Surface Mount
Package / Case SOT-583
Current - Output 2A
Number of Outputs 1
Frequency - Switching 2MHz
Operating Temperature -40degC ~ 125degC
Synchronous Rectifier No
Voltage - Input (Max) 5.5V
Voltage - Input (Min) 1.6V
Voltage - Output (Max) 5.3V
Supplier Device Package SOT-583
Voltage - Output (Min/Fixed) 1.2V

Getting Started

Designers should use the TPS63100EVM evaluation module to test performance and thermal characteristics. Reference the datasheet for specific layout guidelines regarding the power ground and feedback traces to minimize EMI. TI's WEBENCH Power Designer tool can be used to generate a full schematic and BOM based on specific input/output requirements.

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