Chapter 85

High voltage, low noise buck switching regulator

Ajmal Godil

Abstract

The LT1777, a wide input range buck (step-down) switching regulator specially designed for low noise applications, is described.

Keywords

Buck switching regulator

Low noise

LT1777

The LT1777 is a wide input range buck (step-down) switching regulator specially designed for low noise applications. The LT1777 can be beneficial in applications where low noise is critical, such as telecom, automotive cellular and GPS receiver power supplies. The schematic in Figure 85.1 highlights the capabilities of the LT1777.

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Figure 85.1 100kHz Low Noise Step-Down Switching ...

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