Datasheet4U Logo Datasheet4U.com

MAX1927 - PWM Step-Down DC-DC Converters

General Description

The MAX1927/MAX1928 800mA step-down converters power low-voltage microprocessors in compact equipment requiring the highest possible efficiency.

The MAX1927/MAX1928 are optimized for generating low output voltages (down to 750mV) at high efficiency using small external components.

Key Features

  • include internal soft-start, power-OK (POK) output, and selectable forced PWM operation for lower noise at all load currents. The MAX1928 is available with several preset output voltages: 1.5V (MAX1928-15), 1.8V (MAX1928-18), and 2.5V (MAX1928-25). The MAX1927R has adjustable output range down to 0.75V. The MAX1927/MAX1928 are available in a tiny 10-pin µMAX package. o 800mA Output Current o Output Voltages from 0.75V to 5V o 2.6V to 5.5V Input Voltage Range o Power-OK Output o No Schottky Diode.

📥 Download Datasheet

📁 Similar Datasheet

Part Number Description Manufacturer
MAX1920 400mA Step-Down DC-DC Converters Maxim Integrated
MAX1921 400mA Step-Down DC-DC Converters Maxim Integrated
MAX1922 1A Current-Limited Switch Maxim Integrated Products
MAX1928 PWM Step-Down DC-DC Converters Maxim Integrated
MAX19005 200Mbps ATE Drivers/Comparators Maxim Integrated

Other Datasheets by Maxim Integrated (now Analog Devices)

Part Number Description
MAX192 Low-Power / 8-Channel / Serial 10-Bit ADC
MAX1924 Advanced Li+ Battery-Pack Protectors
MAX190 Low-Power / 12-Bit Sampling ADCs
MAX1901 Low-Noise Power-Supply Controllers
MAX1902 Low-Noise Power-Supply Controllers

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
19-2527; Rev 0; 7/02 Low-Output-Voltage, 800mA, PWM Step-Down DC-DC Converters General Description The MAX1927/MAX1928 800mA step-down converters power low-voltage microprocessors in compact equipment requiring the highest possible efficiency. The MAX1927/MAX1928 are optimized for generating low output voltages (down to 750mV) at high efficiency using small external components. The supply voltage range is from 2.6V to 5.5V and the guaranteed minimum output current is 800mA. 1MHz pulse-width modulation (PWM) switching allows for small external components. A unique control scheme minimizes ripple at light loads, while maintaining a low 140µA quiescent current.