TPS61132PW

Overview

The TPS61132PW is a discontinued dual-output power management IC from Texas Instruments, housed in a 16-TSSOP package. It integrates one buck-boost converter and one low-dropout linear regulator (LDO). The switching section operates at a frequency of 500kHz. Output 1 provides a fixed 3.3V at 300mA, while Output 2 delivers a fixed 1.5V at 320mA. The device supports an input supply voltage range of 1.8V to 7V and functions within an operating temperature range of -40°C to 85°C.

Feature Summary

• Integrates a high-efficiency buck-boost converter alongside a dedicated LDO for simultaneous multi-rail generation.
• Provides fixed output voltages to simplify design implementation without requiring external feedback resistors.
• Operates with a wide input voltage range suitable for single-cell lithium-ion or battery-powered applications.

Applications

• Portable electronic devices requiring multiple regulated voltage rails from a single source
• Battery-operated systems utilizing single-cell lithium-ion power sources
• Embedded circuits needing combined switching and linear regulation capabilities

Procurement Notes

This component has been officially declared obsolete by the manufacturer and is no longer in active production. Verification of availability should focus on secondary market distributors or surplus suppliers rather than standard authorized channels. Buyers must confirm the specific revision status and authenticity of existing stock, as lead times and sourcing options vary significantly among non-primary vendors handling end-of-life inventory.

Selection Notes

Designers seeking this specific topology should evaluate current alternatives that offer similar dual-output configurations. Considerations must include verifying pin compatibility and ensuring that replacement components support the required 3.3V and 1.5V outputs. Reviewing updated datasheets is essential to confirm that modern substitutes maintain the necessary electrical characteristics and thermal performance for the intended application environment.

Part Context

The TPS61132 belongs to a family of integrated power management solutions designed to reduce board space and component count. By combining distinct conversion topologies into a single package, it addresses the need for efficient voltage stepping and clean linear regulation in compact form factors. This integration strategy is typical for portable electronics where space constraints and power efficiency are critical design drivers.

Replacement Considerations

The ADP2140ACPZ3315R7 from Analog Devices Inc. is documented as a similar alternative part number.