MAX8524

更新时间： 2024-11-21 11:14:43

品牌	Logo	应用领域
美信 - MAXIM		控制器
页数	文件大小	规格书
23页	915K
描述
2- to 8-Phase VRM 10/9.1 PWM Controllers with Precise Current Sharing and Fast Voltage Positioning

阅读下载

中文翻译

获取价格

数据手册

如果您发现信息不准确，欢迎纠错

MAX8524 数据手册

19-2855; Rev 2; 4/05

2- to 8-Phase VRM 10/9.1 PWM Controllers

with Precise Current Sharing and Fast Voltage

Positioning

General Description

Features

The MAX8525 (VRM 10/VRD 10)/MAX8524 (VRM 9.1/

VRD 9.1) current-mode step-down controllers, the

MAX8523 high-speed, dual-phase MOSFET gate driver,

and the MAX8552 wide-input, single-phase MOSFET

gate driver provide flexible, low-cost, low-voltage CPU

core supplies. The MAX8523 and MAX8552 high-speed,

high-current gate drivers allow operation at high switch-

ing frequencies to reduce external component size and

cost for small-footprint, low-profile designs. Pin-selec-

table 2-, 3-, and 4-phase operation and master-slave 6-

and 8-phase operation provide output-current scalability

for servers, workstations, desktops, desk notes, and net-

working applications.

♦ VRD/VRM 10 (MAX8525)

♦ VRD/VRM 9.1 (MAX8524)

♦ Fastest Load-Transient Response

♦ Rapid-Active Average Current Sensing

Better than 5% Current Balance

Fastest Voltage Positioning

♦

0.4% ꢀnitial ꢁutput-Voltage Accuracꢂ

♦ Pin-Selectable 2-/3-/4-Phase ꢁperation

♦ Master-Slave 6-/8-Phase ꢁperation

♦ Differential Remote Voltage Sensing

♦ Dꢂnamic VꢀD Change (MAX8525)

♦ Adjustable, Foldback Current Limit

♦ Soft-Start and Soft-Stop

The switching frequency of the MAX8524/MAX8525 is

adjustable from 150kHz to 1.2MHz, permitting loop

bandwidths of up to 200kHz. Peak current-mode con-

trol provides fast transient response and reduces cost.

A proprietary current-sharing scheme reduces current

imbalance between phases to less than 5% at full load.

♦ Power-Good ꢁutput

♦ 150kHz to 1.2MHz Switching Frequencꢂ per Phase

♦ 28-Lead QSꢁP Package

The MAX8524/MAX8525 offer 0.4% initial accuracy and

remote-sense functionality. Both controllers also feature

programmable no-load offset and output-voltage posi-

tioning to adjust the output voltage as a function of the

output current. The fast-active voltage positioning further

reduces bulk output capacitors and cost.

Ordering Information

PART

MAX8524EEI

MAX8524EEI+

MAX8525EEI

MAX8525EEI+

TEMP RANGE

-40°C to +85°C

PꢀN-PACKAGE

28 QSOP

Current-mode control also simplifies compensation with

a variety of capacitors by eliminating the output-filter

double pole associated with voltage-mode controllers.

Both devices are compatible with electrolytic, tantalum,

polymer, and ceramic capacitors. Output current sens-

ing eliminates issues associated with controllers that

use high-side current sense and ensure stable and jit-

ter-free operation. Temperature-compensated, lossless

inductor current sense eliminates the need for a cur-

rent-sense resistor and further reduces cost, while

maintaining voltage-positioning accuracy and reducing

power dissipation.

28 QSOP

+Denotes lead-free package.

Pin Configurations

TOP VIEW

PWM3

PWM1

CS1+

28 PWM2

27 PWM4

26 CS4+

25 CS2_4-

24 CS2+

CS1_3-

CS3+

The MAX8525 features control VID voltage transition for

dynamic VID changes and eliminate both undervoltage

and overvoltage overshoot. The PWRGD signal is accu-

rate during VID code changes for the MAX8525 to

avoid any false fault signal.

MAX8525

23 RS+

GND

COMP

REF

22 RS-

21 EN

20 VID4

19 VID3

18 VID2

17 VID1

16 VID0

15 VID5

Adjustable foldback current-limit and overvoltage pro-

tection provide for a robust design.

ILIM 10

OSC 11

PWRGD 12

CLKO 13

CLKI 14

Applications

Servers, Workstations

Desktop Computers

QSꢁP

Desk Notes and LCD PCs

Voltage-Regulator Modules

High-End Switches and Routers

Pin Configurations continued at end of data sheet.

Functional Diagram appears at end of data sheet.

________________________________________________________________ Maxim Integrated Products

For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at

1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.

12 3 4 5 6 7...23

中文翻译

下载PDF

与MAX8524相关器件

型号	品牌	获取价格	描述	数据表
MAX8524\|MAX8525	MAXIM	获取价格	2- to 8-Phase VRM 10/9.1 PWM Controllers with Precise Current Sharing and Fast Voltage Pos
MAX8524EEI	MAXIM	获取价格	2- to 8-Phase VRM 10/9.1 PWM Controllers with Precise Current Sharing and Fast Voltage Pos
MAX8524EEI	ROCHESTER	获取价格	SWITCHING CONTROLLER, 1200kHz SWITCHING FREQ-MAX, PDSO28, 0.150 INCH, 0.025 INCH PITCH, MO
MAX8524EEI+	ROCHESTER	获取价格	SWITCHING CONTROLLER, 1200kHz SWITCHING FREQ-MAX, PDSO28, 0.150 INCH, 0.025 INCH PITCH, LE
MAX8524EEI+	MAXIM	获取价格	Switching Controller, Current-mode, 0.005A, 1200kHz Switching Freq-Max, BICMOS, PDSO28, 0.
MAX8524EEI+T	MAXIM	获取价格	Switching Controller, Current-mode, 0.005A, 1200kHz Switching Freq-Max, BICMOS, PDSO28, 0.
MAX8524EEI-T	MAXIM	获取价格	Switching Controller, Current-mode, 0.005A, 1200kHz Switching Freq-Max, BICMOS, PDSO28, 0.
MAX8525EEI	MAXIM	获取价格	2- to 8-Phase VRM 10/9.1 PWM Controllers with Precise Current Sharing and Fast Voltage Pos
MAX8525EEI+	MAXIM	获取价格	暂无描述
MAX8525EEI+	ROCHESTER	获取价格	SWITCHING CONTROLLER, 1200kHz SWITCHING FREQ-MAX, PDSO28, 0.150 INCH, 0.025 INCH PITCH, LE

与MAX8524相关文章

解析光耦仿真器：升级光耦合器技术的必要性
2024-11-18

31
英伟达新一代Blackwell GPU过热问题致交付延迟
2024-11-18

22
国产厂商思特威CMOS图像传感器芯片单月出货超1亿颗，技术创新引领行业发展
2024-11-14

51
台积电5nm和3nm产能利用率达100%，半导体行业景气度持续攀升
2024-11-14

50

产品中心

服务支持

精选活动

关于我们

帮助中心

MAX8524

MAX8524 数据手册

与MAX8524相关器件

与MAX8524相关文章

您还可以找

产品中心

服务支持

精选活动

关于我们

帮助中心

MAX8524

MAX8524 数据手册

与MAX8524相关器件

与MAX8524相关文章

您还可以找

您在本页遇到什么问题？