LM2770SD-12157/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM2770SD-12157/NOPB is a programmable charge pump DC-DC converter manufactured by Texas Instruments. It operates within an input voltage range of 2.7V to 5.5V and delivers a maximum output current of 250mA. The device features a fixed switching frequency of 700kHz and supports an operating temperature range from -30°C to 85°C. It is housed in a 10-WSON (3x3) package with a exposed pad for thermal management.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Utilizes inductorless switched-capacitor topology for compact design
• Provides programmable output voltage configuration
• Integrates adjustable current limit protection

Voltage Regulators - DC DC Switching Regulators Applications

• Portable battery-powered devices requiring low-profile power regulation
• LCD bias voltage generation
• General step-down conversion in space-constrained PCB layouts

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix '12157' against official datasheets to confirm exact output voltage settings, as variations exist within the LM2770 family. Ensure compatibility with the 10-WSON footprint and thermal requirements during integration. Confirm RoHS compliance status via the manufacturer's current documentation before finalizing procurement.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when an inductorless solution is required to minimize board space and electromagnetic interference. It is suitable for applications needing a fixed 700kHz switching frequency without external synchronization. Consider the 250mA output limit and input voltage constraints relative to the system's power budget and battery characteristics.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2770 series of low-ripple charge pumps. It serves as an alternative to traditional inductive buck converters where size and cost are critical factors. The series is designed for efficient voltage stepping in portable electronics, offering a balance between performance and physical footprint.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Check for LM2770SD-1215/NOPB or LM2770SDX-1215/NOPB if different output voltage configurations are acceptable. Verify pinout and package dimensions match exactly. Consult TI documentation for any functional differences between NOPB and non-NOPB variants.