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MAX1556A Datasheet 1.2a Pwm Step-down DC-dc Converters

Manufacturer: Maxim Integrated (now Analog Devices)

Overview: MAX1556/MAX1556A/MAX1557 19-3336; Rev 3; 1/11 EVAALVUAAILTAIOBNLEKIT 16µA IQ, 1.

This datasheet includes multiple variants, all published together in a single manufacturer document.

General Description

The MAX1556/MAX1556A/MAX1557 are low-operatingcurrent (16µA), fixed-frequency step-down regulators.

High efficiency, low-quiescent operating current, low dropout, and minimal (27µA) quiescent current in dropout make these converters ideal for powering portable devices from 1-cell Li-ion or 3-cell alkaline/NiMH batteries.

The MAX1556 delivers up to 1.2A;

Key Features

  • o Up to 97% Efficiency o 95% Efficiency at 1mA Load Current o Low 16µA Quiescent Current o 1MHz PWM Switching o Tiny 3.3µH Inductor o Selectable 3.3V, 2.5V, 1.8V, 1.5V, 1.3V, 1.2V, 1.0V, and Adjustable Output o 1.2A Guaranteed Output Current (MAX1556/MAX1556A) o Voltage Positioning Optimizes Load-Transient Response o Low 27µA Quiescent Current in Dropout o Low 0.1µA Shutdown Current o No External Schottky Diode Required o Analog Soft-Start with Zero Overshoot Current o Small, 10-Pin, 3mm x 3mm T.

Similar Datasheet

Brand Logo Part Number Description Manufacturer
Maxim Integrated Products Logo MAX1556 1.2A PWM Step-Down DC-DC Converters Maxim Integrated Products

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MAX1556A Distributor