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MAX1556A - 1.2A PWM Step-Down DC-DC Converters

Download the MAX1556A datasheet PDF. This datasheet also covers the MAX1556 variant, as both devices belong to the same 1.2a pwm step-down dc-dc converters family and are provided as variant models within a single manufacturer datasheet.

General Description

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

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.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (MAX1556_MaximIntegratedProducts.pdf) that lists specifications for multiple related part numbers.

📁 Similar Datasheet

Part Number Description Manufacturer
MAX1556 1.2A PWM Step-Down DC-DC Converters Maxim Integrated Products
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MAX15501 (MAX15500 / MAX15501) Industrial Analog Current/Voltage Output Conditioners Maxim Integrated Products
MAX1551 SOT23 Dual-Input USB/AC Adapter 1-Cell Li+ Battery Chargers MAXIM

Other Datasheets by Maxim Integrated (now Analog Devices)

Part Number Description
MAX15002 Dual-Output Buck Controller
MAX15004A 4.5V to 40V Input Automotive Flyback/Boost/SEPIC Power-Supply Controllers
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MAX15005A 4.5V to 40V Input Automotive Flyback/Boost/SEPIC Power-Supply Controllers
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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
MAX1556/MAX1556A/MAX1557 19-3336; Rev 3; 1/11 EVAALVUAAILTAIOBNLEKIT 16µA IQ, 1.2A PWM Step-Down DC-DC Converters 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; has pinselectable 1.8V, 2.5V, and 3.3V outputs; and is also adjustable. The MAX1557 delivers up to 600mA; has pinselectable 1V, 1.3V, and 1.5V outputs; and is also adjustable.