MAX15301AA01-CK View Datasheet(PDF) - Maxim Integrated

Part Name

Description

Manufacturer

MAX15301AA01-CK

InTune Automatically Compensated Digital PoL Controller with Driver and PMBus Telemetry

Maxim Integrated 

MAX15301

InTune Automatically Compensated Digital PoL

Controller with Driver and PMBus Telemetry

Functional Diagram

LXSNS

INSNS

ADDR0

ADDR1

SET

CIO

IO

SYNC

PG

TEMPX

EN

SCL

SDA

SALRT

DGND

EP

HSSP

MCU

RAM

FLASH

PMBus

OSC/

SYNC

THERMAL

PROTECTION

MUX

AUX

ADC

LX

DETECT

DPWM

NLSS COMPENSATOR

FAULT

PROCESSOR

SOFT-START

SGND

MAX15301

1.8V

REG

SIDO

REG

DRIVER

1P8

3P3

PWR

LBI

LBO

GDRV

BST

DH

LX

DL

PGND

ILIM

FB

ADC

DCRP

DCRN

OUTP

OUTN

SGND

Detailed Description

The MAX15301 is an innovative, PMBus-compliant,

mixed-signal power management IC with a built-in

high-performance digital PWM controller for POL appli-

cations. The MAX15301 is based on Maxim’s InTune

automatically compensated digital PWM control loop.

The MAX15301 has optimal partitioning of the digital

power management and the digital power conversion

domains to minimize startup times and reduce bias

current. The MAX15301 supports over 80 standard and

manufacturer-specific PMBus commands.

The MAX15301 uses adaptive compensation techniques

to handle a broad range of timing, voltage, current, tem-

perature, and external component parameter variations.

Efficiency optimization techniques further enhance the

performance of the MAX15301, including adjustable

nonoverlap timing, load-variable gate-drive voltage, and

switch-mode BabyBuck bias regulators for biasing the

internal circuit blocks and the MOSFET gate drive.

The MAX15301 features integrated power conversion to

self-bias its digital, analog, and driver blocks from a single

input supply (VPWR). The MAX15301 relies on mixed-

signal design techniques to control the power system

efficiently and precisely. It does not require any software

to configure or initialize the device. In addition, functions

can be monitored and configured through the SMBus

interface using standard PMBus commands resulting in

ease of design and flexibility.

The control loop is separated from the housekeeping,

power monitoring, and fault management blocks. Control

loop parameters are stored in an on-chip nonvolatile flash

memory. An internal microcontroller enables monitoring

operating conditions using the SMBus interface. The

DPWM control loop is implemented using dedicated state

machines, there is no DSP or MCU in the control loop.

This partition allows for architecture that minimizes power

consumption while optimizing performance.

www.maximintegrated.com

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