MAX77504
PRODUCTION14V Input, 3A High-Efficiency Buck Converter in WLP or QFN
High-Efficiency Buck Converter in Small 1.7mm x 1.7mm WLP
- Part Models
- 6
- 1ku List Price
- Starting From $0.55
Overview
- 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
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).
Applications
- 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
Documentation
Data Sheet 1
Video 1
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 Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| MAX77504AAFC+ | LFCSP | ||
| MAX77504AAFC+T | LFCSP | ||
| MAX77504AAWE+ | WLCSP | ||
| MAX77504AAWE+T | WLCSP | ||
| MAX77504BAWE+ | WLCSP | ||
| MAX77504BAWE+T | WLCSP |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Apr 20, 2026 - 2571E PIN/ERRATA |
||
| MAX77504AAFC+ | PRODUCTION | |
| MAX77504AAFC+T | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Software Resources
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Learn MoreEvaluation Kits
Evaluation Kit for the MAX77504
Resources
Evaluation Kit for the MAX77504 (MAX77504AAFC+)