MAX77711

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


Please check latest availability status for a specific part variant.

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).

MAX77511, MAX77711: Simplified Block Diagram MAX77511, MAX77711: Simplified Block Diagram Enlarge+

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 
  • Uses Small 2520 Inductor 
  • 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

See parametric specs for Step-Down Switching Regulators (408)


Part NumberVIN
(V)
VIN
(V)
VOUT1
(V)
VOUT1
(V)
Output Adjust. MethodIOUT1
(A)
Switch TypeSynchronous SwitchingPower Good SignalICC
(mA)
DC-DC OutputsOper. Freq.
(kHz)
Package/PinsBudgetary
Price
minmaxminmaxmaxtypSee Notes
MAX77511 NEW!2.3100.255.2Preset or Adj3InternalYesYes0.641000
WLP/64
$1.99 @1k
MAX77711 NEW!
WLP/64
$2.14 @1k

Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

MAX77711AEVKIT: Evaluation Kit for the MAX77511/ MAX77711
Request Reliability Report for: MAX77711 
Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C   Material Composition  

Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

Quality Management System >
Environmental Management System >

 
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