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MAX15301AA01-CK

InTune Automatically Compensated Digital PoL Controller with Driver and PMBus Telemetry

Maxim Integrated 

MAX15301

EVALUATION KIT AVAILABLE

InTune Automatically Compensated Digital PoL

Controller with Driver and PMBus Telemetry

General Description

The MAX15301 is a full-featured, highly efficient, digital

point-of-load (PoL) controller with advanced power man-

agement and telemetry features. Unlike PID-based digital

power regulators, the MAX15301 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.

The MAX15301 includes multiple features to optimize

efficiency. An internal switch BabyBuck™ regulator gen-

erates the gate drive and the internal bias supplies for

the controller with low power loss. An advanced, high-

efficiency MOSFET gate driver has adjustable nonoverlap

timing and load-variable gate-drive voltage to minimize

switching losses over the full range of voltage, current,

and temperature.

The MAX15301 was designed for end-customer’s design

environment. An on-board PMBus™-compliant serial bus

interface enables communication with a supervisory con-

troller 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

via pin strapping and does not require user configura-

tion firmware. This allows for rapid development of the

power-supply subsystem before board-level systems

engineering is completed. Maxim provides support hard-

ware and software for configuring the MAX15301.

The MAX15301 is available in a 32-lead, 5mm x 5mm

TQFN package and operates over the -40°C to +85°C

temperature range.

InTune and BabyBuck are trademarks of Maxim Integrated

Products, Inc.

PMBus is a trademark of SMIF, Inc.

Maxim patents apply: 7498781, 7880454, 7696736, 7746048,

7466254, 798613, 7498781, 8,120,401, 8,014,879.

This product is subject to a license from Power-One, Inc., relat-

ed to digital power technology patents owned by Power-One,

Inc. This license does not extend to merchant market stand-

alone power-supply products.

Features

●● InTune Automatic Compensation Ensures Stability

While Optimizing Transient Performance

●● State-Space Compensation Results in Fast Transient

Response with Reduced Output Capacitance

●● Differential Remote Voltage Sensing Enables ±1%

VOUT Accuracy over Temperature (-40°C to +85°C)

●● PMBus Interface for Configuration, Control, and

Monitoring

●● Supports Voltage Positioning

●● High Output 2A/4A MOSFET Driver

• Adjustable Nonoverlap Timing

• Variable Gate-Drive Voltage

●● Wide Input Range of 4.5V to 14V

●● Efficient On-Chip BabyBuck Regulator for Self-Bias

●● Output Voltage Range from 0.5V to 5.25V

●● Startup into a Prebiased Output

●● Configurable Soft-Start and Soft-Stop Time

●● Fixed-Frequency Operation and Synchronization

●● Flexible Sequencing and Fault Management

●● Pin-Strappable Configuration

• Output Voltage, SMBus Address, Switching

Frequency, Current Limit

●● Out-of-the-Box Operation Enables Fast Prototyping

Applications

●● Servers

●● Storage Systems

●● Routers/Switches

●● Base-Station Equipment

●● Power Modules

Ordering Information and Typical Operating Circuit appear

at end of data sheet.

For related parts and recommended products to use with this part, refer

to www.maximintegrated.com/MAX15301.related.

19-6267; Rev 4; 11/13

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