Datasheet > ISL8271M

ISL8271M

更新时间： 2024-11-25 01:19:55

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瑞萨 - RENESAS		/
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描述
Digital DC/DC PMBus 33A Module

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ISL8271M 数据手册

DATASHEET

ISL8271M

Digital DC/DC PMBus 33A Module

FN8636

Rev.4.00

Aug 17, 2017

The ISL8271M is a 33A step-down DC/DC power supply module

with an integrated digital PWM controller, synchronous power

switches, an inductor, and passives. Only bulk input and output

capacitors are needed to finish the design. The 33A of

continuous output current can be delivered without the need

for airflow or a heatsink. The thermally enhanced HDA module

is capable of dissipating heat directly into the PCB.

Features

• Complete digital switch mode power supply

- Wide V range: 4.5V to 14V

- Programmable V

range: 0.6V to 5V

OUT

• PMBus compliant I C communication interface

- Programmable V , margining, UV/OV, I

limit,

OUT OUT

The ISL8271M uses ChargeMode™ control architecture, which

responds to a transient load within a single switching cycle.

The ISL8271M comes with a preprogrammed configuration for

operating in a pin-strap mode: the output voltage, switching

frequency, and the device SMBus address can be programmed

with external resistors. Other configuration options, such as

soft-start and fault limits can be programmed or changed

using the PMBus compliant serial bus interface. PMBus can be

used to monitor voltages, current, temperatures, and fault

status. The ISL8271M is supported by PowerNavigator™

software, a Graphical User Interface (GUI) that can be used to

configure modules to a desired solution.

soft-start/stop, sequencing, and external synchronization

- Monitor: V , V , I , temperature, duty cycle,

IN OUT OUT

switching frequency, and faults

• ChargeMode control architecture

• ±1.0% V

OUT

accuracy over line, load, and temperature

• Power-good indicator

• Over-temperature protection

• Internal nonvolatile memory and fault logging

• Patented thermally enhanced HDA package

• Intuitive configuration using PowerNavigator

The ISL8271M is available in a 40 Ld compact 17mmx19mm

HDA module with very low profile height of 3.55mm, suitable

for automated assembly by standard surface mount

Applications

• Server, telecom, storage, and datacom

• Industrial/ATE and networking equipment

• General purpose power for ASIC, FPGA, DSP, and memory

equipment. The ISL8271M is RoHS compliant by exemption.

Related Literature

• For a full list of related documents, visit our website

- ISL8271M product page

V_IN

OUT

SEN+

OUT

SEN-

2.2

ISL8271M

DRVIN

SCL

SDA

3.55mm

DRVOUT

1µ

10µ

SALRT

SGND

PGND

NOTE:

1. Only bulk input and output capacitors are required to finish the design.

FIGURE 1. A COMPLETE DIGITAL SWITCH MODE POWER SUPPLY

FIGURE 2. A SMALL PACKAGE FOR HIGH POWER DENSITY

FN8636 Rev.4.00

Aug 17, 2017

Page 1 of 57

12 3 4 5 6 7...57

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与ISL8271M相关器件

型号	品牌	获取价格	描述	数据表
ISL8271MAIRZ	RENESAS	获取价格	Digital DC/DC PMBus 33A Module; MODULE40; Temp Range: -40° to 85°C
ISL8271MAIRZ-T13	RENESAS	获取价格	DC-DC REG PWR SUPPLY MODULE
ISL8271MBIRZ	RENESAS	获取价格	Digital DC/DC PMBus 33A Module; MODULE40; Temp Range: -40° to 85°C
ISL8271MEVAL1Z	RENESAS	获取价格	Digital DC/DC PMBus 33A Module
ISL8272M	RENESAS	获取价格	50A Digital DC/DC PMBus Power Module
ISL8272MAIRZ	INTERSIL	获取价格	50A Digital DC/DC PMBus Power Module
ISL8272MAIRZ	RENESAS	获取价格	50A Digital DC/DC PMBus Power Module
ISL8272MBIRZ	RENESAS	获取价格	50A Digital DC/DC PMBus Power Module
ISL8272MEVAL1Z	INTERSIL	获取价格	50A Digital DC/DC PMBus Power Module
ISL8272MEVAL1Z	RENESAS	获取价格	50A Digital DC/DC PMBus Power Module

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