The MAX77503 is a synchronous 1.5A step-down DC-DC converter optimized for portable 2-cell and 3-cell battery- operated and USB-C applications. The converter operates on an input supply between 3V and 14V. Output voltage is adjustable between 0.8V and 5V in 50mV steps through an I2C serial interface or 1.55V to 99% of the supply voltage with external feedback resistors. Factory-programmed default voltages of 1.2V, 1.8V, and 3.3V are offered to reduce component count for common rails. The device features a low-IQ SKIP mode which allows excellent efficiency at light loads.
Dedicated enable and power-OK pins allow simple hardware control. An I2C serial interface is optionally used for full configuration and control for dynamic voltage scaling and system power optimization.
Built-in undervoltage lockout (UVLO), output active discharge, cycle-by-cycle current limit, thermal shutdown, and short-circuit protection ensure safe operation under abnormal operating conditions.
The MAX77503 is available in a 12-bump, 0.4mm pitch wafer-level package (WLP).
|Output Adjust. Method||IOUT1|
|Switch Type||Synchronous Switching||Power Good Signal||DC-DC Outputs||Oper. Freq.|
|See All Step-Down Switching Regulators (367)|
| 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.
|Device||Fab Process||Technology||Sample size||Rejects||FIT at 25°C||FIT at 55°C|
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|User Guide||6640||MAX77503 I2C-Compatible Serial Interface Implementation Guide|