Texas Instruments

LM27762DSST

LM27762DSST Description

The LM27762DSST from Texas Instruments is a high-performance, adjustable dual-rail charge pump voltage regulator designed to generate both positive and negative output voltages from a single input supply. Operating within a 2.7V to 5.5V input range, it delivers up to ±250mA of output current, making it ideal for low-power applications requiring dual-rail supplies. With a switching frequency of 1.7MHz to 2.3MHz, it minimizes external component size while maintaining high efficiency. The device is housed in a compact 12-pin WSON package and is available in Tape & Reel (TR) for automated assembly.

LM27762DSST Features

• Dual-Rail Output: Generates both positive and negative adjustable voltages from a single input, simplifying power supply design.
• Wide Input Range (2.7V–5.5V): Compatible with Li-ion batteries, USB power, and other common DC sources.
• High Switching Frequency (1.7MHz–2.3MHz): Reduces the need for bulky external inductors and capacitors.
• Low Noise Charge Pump: Minimizes output ripple, making it suitable for noise-sensitive analog circuits.
• Compact Footprint: 12-pin WSON package optimizes board space in portable and space-constrained designs.
• RoHS3 & REACH Compliant: Meets environmental and regulatory standards for global use.

LM27762DSST Applications

• Portable Electronics: Powers op-amps, sensors, and data converters in battery-operated devices.
• Industrial Systems: Provides dual-rail supplies for instrumentation, test equipment, and control systems.
• Audio & Signal Processing: Ideal for biasing high-performance audio amplifiers and analog front-ends.
• Medical Devices: Suitable for low-noise, compact power solutions in wearable and diagnostic equipment.

Conclusion of LM27762DSST

The LM27762DSST stands out as a versatile, space-efficient solution for dual-rail power generation, combining adjustability, high efficiency, and low noise in a single IC. Its wide input range and compact design make it a preferred choice for portable, industrial, and precision analog applications. By eliminating the need for inductors, it simplifies PCB layout and reduces BOM cost, offering a compelling alternative to traditional buck-boost converters in low-power systems.