Datasheet4U Logo Datasheet4U.com

MAX1921 - 400mA Step-Down DC-DC Converters

This page provides the datasheet information for the MAX1921, a member of the MAX1920 400mA Step-Down DC-DC Converters family.

Datasheet Summary

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

Datasheet preview – MAX1921

Datasheet Details

Part number MAX1921
Manufacturer Maxim Integrated
File Size 807.77 KB
Description 400mA Step-Down DC-DC Converters
Datasheet download datasheet MAX1921 Datasheet
Additional preview pages of the MAX1921 datasheet.

📁 Similar Datasheet

  • 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)
  • MAX1901 - Low-Noise Power-Supply Controllers (Maxim)
  • MAX1902 - Low-Noise Power-Supply Controllers (Maxim)
  • MAX1904 - Low-Noise Power-Supply Controllers (Maxim)
  • MAX1907A - Quick-PWM Master Controllers (Maxim Integrated Products)
  • MAX1908 - Low-Cost Multichemistry Battery Chargers (Maxim Integrated Products)
Other Datasheets by Maxim Integrated
  • 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
  • MAX1963A - 300mA LDO Regulators
  • MAX1967 - Low-Cost Voltage-Mode PWM Step-Down Controllers
  • MAX19692 - Multi-Nyquist DAC

Full PDF Text Transcription

Click to expand full 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.
Published: |