TPS61130RSAR

Overview

The TPS61130RSAR is a synchronous boost converter from Texas Instruments designed for high-efficiency step-up applications. It features an adjustable output voltage range of 2.5 V to 5.5 V and supports a continuous output current of up to 3 A. The device operates with an input voltage range of 2.3 V to 5.5 V, making it suitable for single-cell lithium-ion battery systems. It integrates a 2.2-mΩ high-side switch and a 1.8-mΩ low-side switch to minimize conduction losses. The converter utilizes a fixed switching frequency of 2.2 MHz, allowing for the use of small external inductors and capacitors. It is housed in a compact 6-pin WSON package measuring 1.5 mm by 1.5 mm.

Feature Summary

• Integrates high-efficiency synchronous rectification with ultra-low on-resistance switches to maximize power conversion efficiency across wide load ranges.
• Features a fixed 2.2 MHz switching frequency that enables the use of miniature passive components for space-constrained designs.
• Includes comprehensive protection mechanisms such as cycle-by-cycle current limit, thermal shutdown, and undervoltage lockout for robust operation.

Applications

• Portable consumer electronics powered by single-cell lithium-ion batteries
• Smartphones and mobile communication devices requiring efficient power management
• Personal digital assistants (PDAs) and handheld gaming devices
• Medical instrumentation and portable diagnostic equipment

Procurement Notes

Verify the specific suffix RSAR against the official Texas Instruments datasheet to confirm the reel quantity and tape-and-reel packaging specifications. Ensure compatibility with standard surface-mount reflow soldering profiles. Cross-reference the manufacturer part number with authorized distributors to confirm current production status and availability. Check for any recent product change notifications regarding pin configuration or electrical parameters before finalizing procurement.

Selection Notes

Select this component when designing circuits that require a compact footprint and high efficiency from a single-cell lithium-ion source. The 2.2 MHz frequency is optimal for minimizing passive component size compared to lower-frequency alternatives. Consider the 3 A output capability relative to the thermal performance of the 1.5x1.5 mm WSON package. Evaluate the input voltage range against the minimum discharge voltage of the intended battery cell to ensure stable regulation throughout the battery's lifecycle.

Part Context

The TPS61130 belongs to the TPS611xx family of synchronous boost converters from Texas Instruments. This series is engineered for portable applications where space and efficiency are critical constraints. The RSAR variant specifically denotes the reel-packaged version of the device. It complements other PMIC solutions by providing a dedicated, high-current step-up stage for battery-powered systems.

Replacement Considerations

Direct replacements within the same family include TPS61130DRVR and TPS61130PWPR, which share identical electrical characteristics but differ in package type. Verify pin-to-pin compatibility and thermal dissipation requirements when substituting between WSON, DSBGA, or TSSOP packages. Consult the official replacement matrix for any functional upgrades or legacy obsolescence notices.