MAX77504

14V Input, 3A High-Efficiency Buck Converter in WLP or QFN

High-Efficiency Buck Converter in Small 1.7mm x 1.7mm WLP


Please check latest availability status for a specific part variant.

Description

The MAX77504 is a synchronous 3A step-down DC-DC converter optimized for portable 2-cell and 3-cell battery-operated applications. The converter operates on an input supply between 2.6V and 14V. Output voltage is adjustable between 0.6V and 6V with external feedback resistors. The device features a low-IQ SKIP mode that allows excellent efficiency at light loads. The MAX77504 can be sychronized by driving the FPWM pin with an external clock.

Dedicated enable, power-OK, and FPWM pins allow simple hardware control. The SEL input easily configures switching frequency, gain, and output active discharge option. Built-in undervoltage lockout (UVLO), output active discharge, cycle-by-cycle inductor current limit, thermal shutdown, and short-circuit protection ensure safe operation under abnormal operating conditions.

The MAX77504 is offered in a small 1.7mm x 1.7mm, 16-bump, 0.4mm pitch wafer-level package (WLP) or a 2.5mm x 2.5mm, 12-lead, 0.5mm pitch flip-chip QFN (FC2QFN).

MAX77504: Simplified Application Circuit MAX77504: Simplified Application Circuit Enlarge+

Key Features

  • 3A Single-Channel Buck Regulator
  • 2.6V to 14V Input Voltage
  • 0.6V to 6V Output Voltage Range
  • 0.5MHz to 1.5MHz Fixed-Frequency Switching Options 
  • High Efficiency, Low IQ Extends Battery Life
    • 94% Peak Efficiency at 7.4VIN, 3.3VOUT (2520 Inductor)
    • 10μA ISUP (12VIN, 1.8VOUT)
    • OUT Powers VL Automatically (VOUT > 1.7V) for Low IQ
  • Enable Pin (EN) for Direct Hardware Control
  • Extenal Clock Synchronization Is Available Through the FPWM/SYNC Pin
  • Power-OK Output (POK) Monitors VOUT Quality (See Ordering Information)
  • Protection Features
    • Cycle-by-Cycle Inductor Current Limit
    • Short-Circuit Hiccup Mode, UVLO, and Thermal Shutdown Protection
    • Soft-Start 
  • FC2QFN or WLP Package Option
    • 2.5mm x 2.5mm (0.6mm max. height) 12-Lead FC2QFN, 0.5mm Pitch
    • 1.7mm x 1.7mm (0.7mm max. height) 16-Bump WLP, 0.4mm Pitch, 4 x 4 Array
  • All WLP Package Bumps (Except POK) Routeable on a Non-HDI PCB

Applications/Uses

  • 1- to 3-Cell Li+/Li-ion Battery-Powered Devices
  • Professional Radio, Handheld Computers
  • Mirrorless Cameras, DSLR, and Notebook Computers
  • Portable Scanners, POS Terminals, Printers
  • Space-Constrained Portable Electronics
Part NumberVIN
(V)
VIN
(V)
VOUT1
(V)
VOUT1
(V)
Output Adjust. MethodIOUT1
(A)
Switch TypeSynchronous SwitchingPower Good SignalDC-DC OutputsOper. Freq.
(kHz)
Design ToolsPackage/PinsBudgetary
Price
minmaxminmaxSee Notes
MAX77504 NEW!2.6140.66Resistor3InternalYesYes11500EE-Sim
FC2QFN/12
WLP/16
$0.69 @1k
See All Step-Down Switching Regulators (402)
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.


MAX77504WEVKIT: Evaluation Kit for the MAX77504

Quality and Environmental Data

Request Reliability Report for: MAX77504 
Lead-Free Package Tin (Sn) Whisker Reports

Tools & Models

  • EE-Sim: Design & Simulate MAX77504
  • Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C  

    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 >

     
    Status:
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