The MAX15303 is a full-featured, flexible, efficient, 6A digital point-of-load (PoL) controller with integrated switching MOSFETs. It contains advanced power-management and telemetry features. Unlike PID-based digital power regulators, the device uses Maxim’s patented InTune™ automatically compensated, state-space control algorithm. The InTune control law is valid for both the small- and large-signal response and accounts for duty-cycle saturation effects. These capabilities result in fast loop transient response and reduce the number of output capacitors compared to competing digital controllers.
To help maximize system efficiency and reduce overall parts count, the device uses Maxim’s BabyBuck regulator. The BabyBuck eliminates the need for an external bias supply. The BabyBuck can be configured in two different modes to maximize system flexibility.
The device is designed to minimize the end customer’s design time. Automatic compensation eliminates the need for external compensation circuitry and allows changes to the output inductor and capacitor, without the need to manually redesign the compensation circuitry. An on-board PMBus™-compliant serial bus interface enables communication with a supervisory controller for monitoring and fault management. A full suite of power-management features eliminates the need for complicated and expensive sequencing and monitoring ICs. Basic DC-DC conversion operation can be set up through pin strapping and does not require user-configuration firmware. This allows for rapid development of the power-supply subsystem before board-level systems engineering is completed. Maxim provides support hardware and software for configuring the device.
The MAX15303 is available in a 40-pin, 6mm × 6mm TQFN package with an exposed pad and operates over the -40°C to +85°C temperature range.
|Part Number||VIN |
|Preset VOUT |
|Output Adjust. Method||IOUT1 |
|Switch Type||Synchronous Switching||Power Good Signal||DC-DC Outputs||Oper. Freq. |
|See All Step-Down Switching Regulators (341)|
| 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|
|User Guide||5981||PowerTool MAXPOWERTOOL002# Quick Start Guide|
|User Guide||5861||EE-SIM Design and Simulation Environment User Guide|
|User Guide||5816||MAX15303 PMBus Command Set User’s Guide|
|App Note||5601||Current Calibration Procedure for InTune Digital Power|
|Reference Circuit||6321||Wireless Backhaul Power Supplies|
|Reference Circuit||6032||Automatically Compensated 1.80V, 5A Design for the Kintex Ultrascale FPGA|
|Reference Circuit||6031||PMBus-Compliant, Tightly Regulated, 1.80V, 2A Design for the Kintex Ultrascale FPGA|
|Reference Circuit||6030||1.20V, 3A Design for the Kintex Ultrascale FPGA Provides Better Than 1% Voltage Regulation|
|Reference Circuit||6025||Low-Voltage, 0.95V, 5A Design for the Kintex Ultrascale FPGA|
|Evaluation Board||8567||MAX15303EVKIT1 Evaluation Kit for the MAX15303|