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5.5V Input, 2A, High-Efficiency Buck-Boost Converter

Industry's Best Transient Response Performance with High-Efficiency Across the Load Range

Product Details

Key Features

Parametric specs for Step-Down/Up Switching Regulators
VIN (V) (min) 2.3
VIN (V) (max) 5.5
VOUT1 (V) (min) 2.6
VOUT1 (V) (max) 5.14
IOUT1 (A) (max) 2
Switch Type Internal
Preset VOUT (V) 3.3
3.4
Output Adjust. Method Preset
Synchronous Switching? Yes
Power Good Signal Yes
# DC-DC Outputs 1
Alternate Topology Step-Down
Step-Up
Switching Frequency (kHz) 2500
Design Tools EE-Sim
Package/Pins WLP/20
Oper. Temp. (°C) -40 to +125
Budgetary
Price (See Notes)
1.1
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Simplified Block Diagram

Technical Docs

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Parameters

Parametric specs for Step-Down/Up Switching Regulators
VIN (V) (min) 2.3
VIN (V) (max) 5.5
VOUT1 (V) (min) 2.6
VOUT1 (V) (max) 5.14
IOUT1 (A) (max) 2
Switch Type Internal
Preset VOUT (V) 3.3
3.4
Output Adjust. Method Preset
Synchronous Switching? Yes
Power Good Signal Yes
# DC-DC Outputs 1
Alternate Topology Step-Down
Step-Up
Switching Frequency (kHz) 2500
Design Tools generateDesignEESIMUrl('https://maxim.transim.com/pwm2/designreq/Index?partId=5697', '')
Package/Pins WLP/20
Oper. Temp. (°C) -40 to +125
Budgetary
Price (See Notes)
1.1

Key Features

  • VIN Range: 2.30V to 5.5V
  • VOUT Range: 2.60V to 5.14V (I2C Programmable in 20mV Step)
  • Up to 2A Output Current in Boost Mode (VIN = 3.0V, VOUT = 3.4V, ILIM = High)
  • Up to 3A Output Current in Buck Mode (ILIM = High)
  • Up to 97% Peak Efficiency
  • SKIP Mode for Optimal Light Load Efficiency
  • 55μA (Typ) Low Quiescent Current
  • 3.4MHz High Speed I2C Serial Interface
  • Input Current Limit Selection Pin
  • Power-OK Output
  • 2.5MHz Switching Frequency
  • Protection Features
    • Soft-Start
    • Thermal Shutdown
    • Overvoltage Protection
    • Overcurrent Protection
  • 1.827mm x 2.127mm, 20-Bump WLP

Applications/Uses

  • Single-Cell Li-ion Powered Applications
  • Handheld Scanners, Mobile Payment Terminals, Security Cameras
  • AR/VR Headsets

Description

The MAX77813 is a high-efficiency step-up/step-down (buck-boost) converter targeted for single-cell Li+/Li-ion battery powered applications. The device maintains a regulated output voltage from 2.6V to 5.14V across an input voltage range of 2.3V to 5.5V. The device supports up to 2A of output current in boost mode and up to 3A in buck mode.

The device seamlessly transitions between buck and boost modes. A unique control algorithm allows high-efficiency, outstanding load, and line transient response.

Dedicated enable and power-OK pins allow simple hardware control. An I2C serial interface is optionally used for dynamic voltage scaling, system power optimization, and fault read-back. The device supports two inductor current limit options selected by the ILIM pin.

The MAX77813 is available in a 20-bump, 1.83mm x 2.13mm wafer-level package (WLP).

Simplified Block Diagram

MAX77813: Typical Application Circuit MAX77813: Typical Application Circuit Zoom icon

Technical Docs

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .

Sampling:
Selecting the Sample button above will redirect to the third-party ADI Sample Site. The part selected will carry over to your cart on this site once logged in. Please create a new account there if you have never used the site before. Contact SampleSupport@analog.com with any questions regarding this Sample Site.