Datasheet > MAX1624-MAX1625

MAX1624-MAX1625

更新时间： 2024-11-25 22:57:59

品牌	Logo	应用领域
美信 - MAXIM		控制器
页数	文件大小	规格书
24页	224K
描述
High-Speed Step-Down Controllers with Synchronous Rectification for CPU Power

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MAX1624-MAX1625 数据手册

19-1227; Rev 1; 6/97

Hig h -S p e e d S t e p -Do w n Co n t ro lle rs w it h

S yn c h ro n o u s Re c t ific a t io n fo r CP U P o w e r

4/MAX1625

_______________Ge n e ra l De s c rip t io n

____________________________Fe a t u re s

♦ Better than ±1% Output Accuracy Over

The MAX1624/MAX1625 are ultra-high-performance,

step-down DC-DC controllers for CPU power in high-end

computer systems. Designed for demanding applications

in which output voltage precision and good transient

response are critical for proper operation, they deliver

over 35A from 1.1V to 3.5V with ±1% total accuracy from

a +5V ±10% supply. Excellent dynamic response cor-

rects output transients caused by the latest dynamically

clocked CPUs. These controllers achieve over 90% effi-

ciency by using synchronous rectification. Flying-capaci-

tor b oots tra p c irc uitry d rive s ine xp e ns ive , e xte rna l

N-channel MOSFETs.

Line and Load

♦ 90% Efficiency

♦ Excellent Transient Response

♦ Resistor-Programmable Fixed Switching

Frequency from 100kHz to 1MHz

♦ Over 35A Output Current

♦ Digitally Programmable Output from 1.1V to 3.5V

in 100mV Increments (MAX1624)

♦ Resistor-Adjustable Output down to 1.1V

(MAX1625)

The switching frequency is resistor programmable from

100kHz to 1MHz. High switching frequencies allow the

use of a small surface-mount inductor and decrease out-

put filter capacitor requirements, reducing board area

and system cost.

♦ Remote Sensing

♦ Adjustable AC Loop Gain (MAX1624)

♦ GlitchCatcher™ Circuit for Fast Load-Transient

Response (MAX1624)

The MAX1624 is available in a 24-pin SSOP and offers

additional features such as a digitally programmable out-

put in 100mV increments; adjustable transient response;

selectable 0.5%, 1%, or 2% AC load regulation; and gate

drive for a current-boost MOSFET. The MAX1625 is resis-

tor adjustable and comes in a 16-pin narrow SO pack-

age. Other features in both controllers include internal

digital soft-start, a power-good output, and a 3.5V ±1%

reference output. For a similar controller compatible with

♦ Power-Good (PWROK) Output

♦ Current-Mode Feedback

♦ Digital Soft-Start

♦ Strong 2A Gate Drivers

♦ Current-Limited Output

__________Typ ic a l Op e ra t in g Circ u it

the latest Intel V /V specification, see the MAX1638*

RM ID

data sheet.

INPUT

+5V

________________________Ap p lic a t io n s

Pentium Pro™, Pentium II™, PowerPC™, Alpha™,

and K6™ Systems

TO AGND

CSH

Desktop Computers

LAN Servers

TO V

MAX1625

CSL

BST

Industrial Computers

GTL Bus Termination

PWROK

______________Ord e rin g In fo rm a t io n

OUTPUT

1.1V TO 4.5V

PART

TEMP. RANGE

-40°C to +85°C

PIN-PACKAGE

24 SSOP

MAX1624EAG

MAX1625ESE

PGND

16 Narrow SO

FREQ

CC2

CC1

REF

Pin Configurations appear at end of data sheet.

*Future product.

Pentium Pro and Pentium II are trademarks of Intel Corp.

PowerPC is a trademark of IBM Corp.

Alpha is a trademark of Digital Equipment Corp.

K6 is a trademark of Advanced Micro Devices.

GlitchCatcher is a trademark of Maxim Integrated Products.

AGND

(SIMPLIFIED)

________________________________________________________________ Maxim Integrated Products

For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.

For small orders, phone 408-737-7600 ext. 3468.

12 3 4 5 6 7...24

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与MAX1624-MAX1625相关器件

型号	品牌	获取价格	描述	数据表
MAX1625	MAXIM	获取价格	Precision.Quad.SPDT.CMOS Analog Switch[MAX333A/MAX333AC/D/MAX333ACAP/MAX333ACAP-T/MAX333AC
MAX1625ESE	MAXIM	获取价格	High-Speed Step-Down Controllers with Synchronous Rectification for CPU Power
MAX1625ESE+	MAXIM	获取价格	Switching Controller, Current-mode, 1000kHz Switching Freq-Max, BICMOS, PDSO16, 0.150 INCH
MAX1625ESE+T	MAXIM	获取价格	Switching Controller, Current-mode, 1000kHz Switching Freq-Max, BICMOS, PDSO16, 0.150 INCH
MAX1625ESE-T	MAXIM	获取价格	暂无描述
MAX1625EVKIT	MAXIM	获取价格	Evaluation Kit for the MAX1625
MAX1626	MAXIM	获取价格	5V/3.3V or Adjustable, 100% Duty-Cycle, High-Efficiency, Step-Down DC-DC Controllers
MAX1626	ADI	获取价格	5V/3.3V或可调、100%占空比、高效率、降压型DC-DC控制器
MAX1626C/D	MAXIM	获取价格	5V/3.3V or Adjustable, 100% Duty-Cycle, High-Efficiency, Step-Down DC-DC Controllers
MAX1626ESA	MAXIM	获取价格	5V/3.3V or Adjustable, 100% Duty-Cycle, High-Efficiency, Step-Down DC-DC Controllers

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