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10V Input, Quad-Phase Configurable, 3A/Phase, High-Efficiency Buck Converter

Extend Battery Life and Save Space with Configurable Quad-Phase Buck Converter Operating from a 1s/2s Li+ Battery

Product Details

Parametric specs for Step-Down Switching Regulators
VIN (V) (min) 2.3
VIN (V) (max) 10
VOUT1 (V) (min) 0.25
VOUT1 (V) (max) 5.2
IOUT1 (A) (max) 3
Switch Type Internal
Output Adjust. Method Preset or Adj
Synchronous Switching? Yes
Power Good Signal Yes
IQ (mA) (typ) 0.6
# DC-DC Outputs 4
Switching Frequency (kHz) 1000
Package/Pins WLP/64
Budgetary
Price (See Notes)
2.26
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Simplified Block Diagram

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Sampling:
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Parameters

Parametric specs for Step-Down Switching Regulators
VIN (V) (min) 2.3
VIN (V) (max) 10
VOUT1 (V) (min) 0.25
VOUT1 (V) (max) 5.2
IOUT1 (A) (max) 3
Switch Type Internal
Output Adjust. Method Preset or Adj
Synchronous Switching? Yes
Power Good Signal Yes
IQ (mA) (typ) 0.6
# DC-DC Outputs 4
Switching Frequency (kHz) 1000
Package/Pins WLP/64
Budgetary
Price (See Notes)
2.26

Key Features

  • 3A/Phase Configurable Buck Regulator
    • 3A, 6A, 9A, or 12A Output Current Capability
  • 2.3V to 10V Input Voltage Range
  • 0.25V to 5.2V Output Voltage Range
    • 0.25V to 1.3V (5mV steps) in Low-Range 
    • 1V to 5.2V (20mV steps) in High-Range 
  • Pin Programmable Output/Phase (Φ) Configuration
    • 4Φ, (3+1)Φ, (2+2)Φ, (2+1+1)Φ, (1+1+1+1)Φ
  • High-Efficiency and Low-Heat with 2520 Inductor
    • 94% Peak (3.3VOUT, 7.4VIN)
    • 85% Peak (1.1VOUT, 7.4VIN)
  • 1MHz Nominal Switching Frequency per Phase
    • Pseudo-Random ​Spread-Spectrum Options
  • Six Multi-Function GPIOs for Hardware Buck Control
    • Enable, DVS, FPWM, and Power-OK
  • 300mA pMOS LDO (MAX77711 Only)
  • Built-In Flexible Power Sequencing with Soft-Start/Stop
  • Protection Features
    • Hard and Soft-Short Protection, UVLO, and Thermal Protection

Applications/Uses

  • DSLR, Mirrorless, HD Video, and Action Cameras
  • 2-Cell Li+/Li-ion Equipment
  • Notebook Computers and Robots
  • Embedded Microprocessors, FPGAs, or ASICs

Description

The MAX77511/MAX77711 are four-phase, 3A/phase, configurable single to quad output, step-down buck regulators for 1s/2s Li+ battery inputs. Output voltage is programmable through an I2C interface between 0.25V and 5.2V. The buck has four combinable 3A switching phases (Φ) for up to four regulated outputs. Phases are configurable to higher-current multiphase outputs: 4Φ, (3+1)Φ, (2+2)Φ, (2+1+1)Φ, or (1+1+1+1)Φ.

Six GPIOs can be purposed for I/O expansion or buck status and control. Pseudo-random spread-spectrum modulation suppresses EMI. Soft-start, soft-stop, and DVS slew times are programmable with I2C. MAX77711 offers a 300mA linear regulator.

MAX77511/MAX77711 are available in a 64-bump, 3.54mm x 3.54mm wafer-level package (WLP).

Simplified Block Diagram

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.