Analog Devices / Maxim Integrated

MAX20021 Low-Voltage Step Down DC-DC Converters

Analog Devices presents a PMIC family that offers a small solution size that combines four integrated power rails and high efficiencies

Image of Analog Devices MAX20021 Low-Voltage Step Down DC-DC Converters (click for full-size)Analog Devices' MAX20021 family of power management integrated circuits (PMICs) integrates four low-voltage, high-efficiency, step-down DC-DC converters. The four outputs are resistor programmable between 1.0 V to 4.0 V and can provide up to 1.0 A. The PMICs operate from 3.0 V to 5.5 V, making them ideal for point-of-load and post regulation applications.

High-frequency operation allows for an all-ceramic capacitor design and small sized external components. Internal current sensing and loop compensation allows for reduced board space and system cost.

The PMICs offer several important protection features including input overvoltage protection, input undervoltage monitoring, input undervoltage lockout, cycle-by-cycle current limiting, and overtemperature shutdown. The input undervoltage monitor indicates a brownout condition by driving PG_ low when the input falls below the UVM threshold.

Features
  • Quad step-down DC-DC converters with integrated FETs
  • Operate from 3.0 V to 5.5 V supply voltage
  • Designed to improve automotive EMI performance
    • Forced-PWM operation
    • Two channels 180° out-of-phase
    • SYNC input
    • Spread-spectrum option
  • 2.2 MHz (MAX20022) or 3.2 MHz (MAX20021) switching frequency
  • Four channels capable of delivering up to 1 A each
  • Soft-start and supply sequencing reduces inrush current
  • Individual enable inputs and power-good outputs to simplify sequencing
  • OV/UV input-voltage monitoring
  • Overtemperature and short-circuit protection
  • 28-pin (5 mm × 5 mm × 0.8 mm) TQFN-EP package
  • -40°C to +125°C operating temperature range
  • 1.0 V to 4.0 V fixed or adjustable output voltage

MAX20021 DC-DC Converters

ImageRéférence fabricantDescriptionQuantité disponiblePrixAfficher les détails
IC REG BUCK 1.25V QUAD 28TQFNMAX20021ATIC/V+IC REG BUCK 1.25V QUAD 28TQFN0 - Immédiatement
1200 - Stock usine		$2.68Afficher les détails
IC REG BUCK 1.25V QUAD 28TQFNMAX20021ATIA/V+IC REG BUCK 1.25V QUAD 28TQFN0 - Immédiatement$2.68Afficher les détails
IC REG BUCK 1.25V QUAD 28TQFNMAX20021ATIB/V+IC REG BUCK 1.25V QUAD 28TQFN356 - Immédiatement$4.32Afficher les détails
Date de publication : 2017-06-30

Related Videos

Analog Devices MAX16930 and MAX20002 | DigiKey Daily
Analog Devices MAX16930 and MAX20002 | DigiKey Daily

Date de publication : 2017-10-13

Related Product Highlight

Régulateurs à découpage MAX16930/MAX20002 Les régulateurs à découpage MAX16930 et MAX20002 de Analog Devices sont conçus pour les applications à grade de température automobile.