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Part Number : MAX747
Function : High-efficiency, PWM, step-down P-channel DC-DC controller
Maker : Maxim Integrated

Pinouts :
MAX747 datasheet

Description :

The MAX747 high-efficiency, high-current, step-down controller drives external P-channel FETs. It provides 90% to 95% efficiency from a 6V supply with load currents ranging from 50mA up to 2.5A. It uses a pulse-width-modulating (PWM) current-mode control scheme to provide precise output regulation and low output noise. The MAX747’s 4V to 15V input voltage range, a fixed 5V/adjustable (Dual-Mode™) output, and a current limit set with an external resistor make this device ideal for a wide range of applications.

High efficiency is maintained with light loads due to a proprietary dual-control (Idle-Mode™) scheme that minimizes switching losses by reducing the switching frequency at light loads. The low 800µA quiescent current and ultra-low 0.6µA shutdown current further extend battery life.

External components are protected by the MAX747’s cycle-by-cycle current limit. The MAX747 also features a 2V ±1.5% reference, a comparator for low-battery detection or level translating, as well as soft-start and shutdown capability.


Datasheet PDF Download :
MAX747 pdf

Others datasheet of same file : MAX747,MAX747C/D,MAX747CPD,MAX747CSD,MAX747EPD
2015/01/28 13:52 2015/01/28 13:52

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