MAX1845 Dual / High-Efficiency / Step-Down Controller with Accurate Current Limit

Maxim

Description

19-1955; Rev 2; 1/03 KIT ATION EVALU E L B AVAILA Dual, High-Efficiency, Step-Down Controller with Accurate Current Limit MAX1845 General Descriptio.
Features o Ultra-High Efficiency o Accurate Current-Limit Option o Quick-PWM™ with 100ns Load-Step Response o 1% VOUT Accuracy over Line and Load o Du.

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Datasheet Specifications

Part number: MAX1845
Manufacturer: Maxim
File Size: 543.71 KB
Datasheet: MAX1845_MaximIntegratedProducts.pdf
Description: Dual / High-Efficiency / Step-Down Controller with Accurate Current Limit

Features

* o Ultra-High Efficiency o Accurate Current-Limit Option o Quick-PWM™ with 100ns Load-Step Response o 1% VOUT Accuracy over Line and Load o Dual Mode™ Fixed 1.8V/1.5V/Adj or 2.5V/Adj Outputs o Adjustable 1V to 5.5V Output Range o 2V to 28V Battery Input Range o 200/300/420/540kHz Nominal Switching Fr

Applications

* Notebook Computers CPU Core Supplies Chipset/RAM Supply as Low as 1V 1.8V and 2.5V I/O Supplies 5V INPUT Minimal Operating Circuit BATTERY 4.5V TO 28V VDD VCC ILIM1 ILIM2 ON1 ON2 BST1 OUTPUT1 1.8V DH1 LX1 DL1 V+ UVP OVP MAX1845EEI BST2 DH2 LX2 DL2 OUTPUT2 2.5V CS2 TON CS1 OUT1 PGOOD OUT2 REF SKI

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MAX1845 Dual High-Efficiency Step-Down Controller with Accurate Current Limit Maxim

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