MAX1951 Reference Design Circuit | DC-DC Regulator Application Circuit

The MAX1951 high-efficiency, DC-DC step-down switching converter can output up to 2A of output current. This article introduces the MAX1951 features, application range, reference design circuitry, and circuit analysis to help you reduce design time.

MAX1951 features: up to 94% efficiency; 2A output current guaranteed; 2.6V to 5.5V supply voltage; short circuit and thermal overload protection

Typical Applications for the MAX1951: ASIC/DSP/μP/FPGA Core and I/O Voltage; Cellular Base Stations; Network and Telecommunications Systems; Set Top Boxes

The MAX1951 reference design application circuit:

Figure 1 Internal structure of MAX1951

The MAX1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 Making the MAX1951/MAX1952 ideal for on-board postregulation applications. The MAX1951 total output error is less than 1% over load, line, and temperature.

Figure 2MAX1951 reference design

The MAX1951/MAX1952 high-efficiency switching regulators are small, simple, DC-to-DC step-down converters capable of delivering up to 2A of output current. The devices operate in pulse-width modulation (PWM) at a fixed frequency of 1MHz from a 2.6V to 5.5V input voltage and provide an output voltage from 0.8V to VIN, making the MAX1951/MAX1952 ideal for on-board postregulation applications.

MAX1951 Datasheet: Click to Download

More schematics and source code popular application circuit: click now

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