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.
Note: The manufacturer provides a single datasheet file (MAX1556_MaximIntegratedProducts.pdf) that lists specifications for multiple related part numbers.
Full PDF Text Transcription for MAX1556A (Reference)
Note: Below is a high-fidelity text extraction (approx. 800 characters) for
MAX1556A. For precise diagrams, and layout, please refer to the original PDF.
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...
View more extracted text
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.
MAX1556A Datasheet
