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MAX1843, MAX1843CPA, MAX1843EGI-T

Table of contents:
Info of MAX1843
Info of MAX1843CPA
Info of MAX1843EGI-T

MAX1843, MAX1843CPA, MAX1843EGI-T Selling Leads, Datasheet

MFG:MAX Package Cooled:QFN D/C:0624

MAX1843, MAX1843CPA, MAX1843EGI-T Picture

MAX1843, MAX1843CPA, MAX1843EGI-T Datasheet download

Five Points

Part Number: MAX1843

MFG: MAX

Package Cooled: QFN

D/C: 0624

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MAX1843 Parameters

MAX1843 Features

±1% Output Accuracy

Up to 1MHz Switching Frequency

95% Efficiency

Internal PMOS/NMOS Switches

90m/70mOn-Resistance at V_IN= +4.5V

110m/80mOn-Resistance at V_IN= +3V

Output Voltage

+2.5V, +1.8V, or +1.5V Pin Selectable

+1.1V to V_INAdjustable

+3V to +5.5V Input Voltage Range

350µA Operating Supply Current

<1µA Shutdown Supply Current

Programmable Constant-Off-Time Operation

Idle Mode Operation at Light Loads

Thermal Shutdown

Adjustable Soft-Start Inrush Current Limiting

100% Duty Cycle During Low-Dropout Operation

Output Short-Circuit Protection

28-Pin QFN Package

MAX1843 General Description

2.7A, 1MHz, Low-Voltage, Step-Down Regulator with Internal Synchronous Rectification in QFN Package

MAX1843 Maximum Ratings

V_CC, IN to GND .........................................................-0.3V to +6V
IN to V_CC.............................................................................±0.3V
GND to PGND.......................................................................±0.3V
All Other Pins to GND...................................-0.3V to (V_CC + 0.3V)
LX Current (Note 1).............................................................±4.7A
REF Short Circuit to GND Duration .............................Continuous
ESD Protection .....................................................................±2kV
Continuous Power Dissipation (T_A= +70°C)
28-Pin QFN (derate 20mW/°C above +70°C, part mounted
on 1in² of 1oz copper)......................................................1.6W
Operating Temperature Range ...........................-40°C to +85°C
Storage Temperature Range .............................-65°C to +150°C
Junction Temperature.......................................................+150°C
Lead Temperature (soldering, 10s) ................................ +300°C