Datasheet4U Logo Datasheet4U.com

MAX1921 - 400mA Step-Down DC-DC Converters

Download the MAX1921 datasheet PDF. This datasheet also covers the MAX1920 variant, as both devices belong to the same 400ma step-down dc-dc converters family and are provided as variant models within a single manufacturer datasheet.

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.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (MAX1920-MaximIntegrated.pdf) that lists specifications for multiple related part numbers.

📁 Similar Datasheet

Part Number Description Manufacturer
MAX192 Low-Power / 8-Channel / Serial 10-Bit ADC Maxim
MAX1922 1A Current-Limited Switch Maxim Integrated Products
MAX1924 Advanced Li+ Battery-Pack Protectors Maxim
MAX1927 PWM Step-Down DC-DC Converters Maxim
MAX190 Low-Power / 12-Bit Sampling ADCs Maxim

Other Datasheets by Maxim Integrated (now Analog Devices)

Part Number Description
MAX1920 400mA Step-Down DC-DC Converters
MAX1928 PWM Step-Down DC-DC Converters
MAX19005 200Mbps ATE Drivers/Comparators
MAX19516 100Msps ADC
MAX1954A Current-Mode PWM Buck Controller

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
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.