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MAX1920

Maxim Integrated
Part Number MAX1920
Manufacturer Maxim Integrated
Description 400mA Step-Down DC-DC Converters
Published Dec 8, 2017
Detailed Description MAX1920/MAX1921 Low-Voltage, 400mA Step-Down DC-DC Converters in SOT23 General Description The MAX1920/MAX1921 step-do...
Datasheet PDF File MAX1920 PDF File

MAX1920
MAX1920

Overview
MAX1920/MAX1921 Low-Voltage, 400mA Step-Down DC-DC Converters in SOT23 General Description The MAX1920/MAX1921 step-down converters deliver over 400mA to outputs as low as 1.
25V.
These converters use a unique proprietary current-limited control scheme that achieves over 90% efficiency.
These devices maintain extremely low quiescent supply current (50μA), and their high 1.
2MHz (max) operating frequency permits small, low-cost external components.
This combination makes the MAX1920/MAX1921 excellent high-efficiency alternatives to linear regulators in space-constrained applications.
Internal synchronous rectification greatly improves efficiency and eliminates the external Schottky diode required in conventional step-down converters.
Both devices also include internal digital soft-start to limit input current upon startup and reduce input capacitor requirements.
The MAX1920 provides an adjustable output voltage (1.
25V to 4V).
The MAX1921 provides factory-preset output voltages (see the...


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