1. Products
  2. Power Management
  3. Switching Regulators
  4. Multitopology DC/DC
  5. MAX8620Y


Features and Benefits

  • Three Regulators and a Reset in One Package
  • High-Efficiency Step-Down Converter
    • Up to 4MHz Fixed Switching Frequency
    • 500mA Guaranteed Output Current
    • 0.6V to 3.3V Adjustable Output Voltage
    • ±2% Initial Accuracy
    • Fast Voltage-Positioning Transient Response
    • Internal Synchronous Rectifier
  • Two 300mA LDO Regulators
    • 200mV Dropout at 200mA Load
    • Low 45µVRMS Output Noise
    • 3% Accuracy over Line, Load, and Temperature
    • Overcurrent Protection
    • Nine Pin-Selectable Output-Voltage Settings
  • 30ms (min) Active-Low RESET Output Flag
  • 2.7V to 5.5V Input
  • 115µA (typ) Supply Current at No Load
  • Thermal-Overload Protection
  • Tiny 3mm x 3mm x 0.8mm TDFN Package

Product Details

The MAX8620Y micro-power-management integrated circuit (µPMIC) powers low-voltage microprocessors or DSPs in portable devices. The µPMIC includes a high efficiency step-down DC-DC converter, two lowdropout linear regulators (LDOs), a microprocessor reset output, and power-on/off control logic. This device maintains high efficiency at light loads with a low 115µA supply current, and its miniature TDFN package makes it ideal for portable devices.

The MAX8620Y's step-down DC-DC converter utilizes a proprietary 4MHz hysteretic-PWM control scheme that allows for ultra-small external components. Internal synchronous rectification improves efficiency and eliminates the external Schottky diode that is required in conventional step-down converters. The output voltage is adjustable from 0.6V to 3.3V, with guaranteed output current up to 500mA.

The MAX8620Y's two LDOs offer low 45µVRMS output noise and a low dropout of only 200mV at 200mA. Each LDO delivers at least 300mA of continuous output current. The output voltages are pin selectable from 1.8V to 3.3V for flexibility.

A microprocessor reset output (active-low RESET) monitors OUT1 and warns the system of impending power loss allowing safe shutdown. Active-low RESET asserts during power-up, power-down, shutdown, and fault conditions where VOUT1 is below its regulation voltage.


  • Cellular Handsets
  • Microprocessor and DSP Solutions including MSM™, Intel XScale™, ARM™, and OMAP™
  • PDAs
  • Smartphones/PDA Phones
  • Wireless Local Area Networks (WLANs)

Product Lifecycle icon-recommended Production

At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.

Design Resources

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well.  "Zero defects" for shipped products is always our goal.View our quality and reliability program and certifications for more information.

Part Number Material Declaration Reliability Data Pin/Package Drawing CAD Symbols, Footprints & 3D Models
MAX8620YETD+ Material Declaration Reliability Data Thin Dual Flatpack No Leads
MAX8620YETD+T Material Declaration Reliability Data Thin Dual Flatpack No Leads
Wafer Fabrication Data MAX8620Y Reliability Data

Sample & Buy

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Buy Now Pricing

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List Pricing

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Lead Times

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