MAX1843 Datasheet - Maxim

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MAX1843 2.7A / 1MHz / Low-Voltage / Step-Down Regulator

19-1986; Rev 1; 3/02 KIT EVALUATION E BL LA AVAI 2.7A, 1MHz, Low-Voltage, Step-Down Regulator with Internal Synchronous Rectification in QFN Package.
The MAX1843 constant-off-time, pulse-width modulated (PWM) step-down DC-DC converter is ideal for use in 5V and 3.

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Datasheet Details

Part number:

MAX1843

Manufacturer:

Maxim

File Size:

840.26 KB

Description:

2.7A / 1MHz / Low-Voltage / Step-Down Regulator

Features

* an internal PMOS power switch and internal synchronous rectification for high efficiency and reduced component count. An external Schottky diode is not required. The internal 90mΩ power switch and 70mΩ NMOS synchronous-rectifier switch easily deliver continuous load currents up to 2.7A. The MAX1843

Applications

* 5V or 3.3V to Low-Voltage Conversion CPU I/O Ring Chipset Supplies Notebook and Subnotebook Computers PART MAX1843EGI Ordering Information TEMP RANGE -40°C to +85°C PIN-PACKAGE 28 QFN Pin Configuration N. C. N. C. N. C. 28 27 26 25 24 23 22 21 PGND 20 PGND 19 LX N. C. 18 LX 17 PGND 16 VCC 15 FBSEL 8 T

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MAX1843 2.7A 1MHz Low-Voltage Step-Down Regulator Maxim

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