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MAX1627 Datasheet PDF

Part Series:MAX1627 Series
Category:DC-DC Converters
Description:5V/3.3V or Adjustable, 100% Duty Cycle, High-Efficiency, Step-Down DC-DC Controllers
Document:MAX1627ESA-T Datasheet PDF (18 Pages)

MAX1627 DC-DC Converters Datasheet PDF

MAX1627ESA+T - Maxim Integrated Specifications

TYPE
DESCRIPTION
Number of Pins
8 Pin
Supply Voltage (DC)
3.00V (min)
Case/Package
SOIC-8
Number of Outputs
1 Output
Number of Positions
8 Position
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MAX1627ESA+T - Maxim Integrated Function Overview

The MAX1627ESA+T is a high efficiency step-down DC-DC controller in 8 pin NSOIC package. The controllers deliver load current from 1mA to 2A. It supports adjustable outputs from 1.3V to 16V. Using an external MOSFET and current-sense resistor allows design flexibility and improved efficiencies associated with high performance P-channel MOSFETs. A unique, current-limited, pulse frequency modulated (PFM) control scheme gives this device excellent efficiency over load ranges up to three decades while drawing around 90µA under no load. This wide dynamic range optimizes device for battery powered applications where load currents can vary considerably as circuit block is turned on and off to conserve energy. Operation to a 100% duty cycle allows lowest possible dropout voltage and extends battery life. High switching frequencies & simple circuit topology minimize PC board area & component costs. It is used in minimum component DC-DC converters & 5V to 3.3V green PC applications.
Supply voltage range is 3V to 16.5V
Operating temperature range from -40°C to 85°C
Reduce external components and total cost, tiny surface mount inductor
300KHz PWM switching reduces component size
Reduce power dissipation, efficiency from 3mA to 2A loads is > 90% & low dropout voltage
Reduce number of DC-DC controllers to stock, reduce system power consumption
Maximum quiescent current is 90µA, maximum shutdown current is 1µA
Operates reliably in adverse environment, soft-start limits start-up current
Increase design flexibility, current limited control scheme
External P-channel MOSFET allows output power of > 12.5W
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