MAX1711

更新时间： 2024-11-26 22:57:59

品牌	Logo	应用领域
美信 - MAXIM		电脑控制器
页数	文件大小	规格书
28页	299K
描述
High-Speed, Digitally Adjusted Step-Down Controllers for Notebook CPUs

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MAX1711 数据手册

19-4781; Rev 0; 11/98

Hig h -S p e e d , Dig it a lly Ad ju s t e d

S t e p -Do w n Co n t ro lle rs fo r No t e b o o k CP Us

0/MAX71

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

Fe a t u re s

The MAX1710/MAX1711 s te p -d own c ontrolle rs a re

intended for core CPU DC-DC converters in notebook

computers. They feature a triple-threat combination of

ultra-fast transient response, high DC accuracy, and

hig h e ffic ie nc y ne e de d for le a d ing-e dg e CPU c ore

power supplies. Maxim’s proprietary QUICK-PWM™

quick-response, constant-on-time PWM control scheme

handles wide input/output voltage ratios with ease and

provides 100ns “instant-on” response to load transients

while maintaining a relatively constant switching fre-

quency.

♦ Ultra-High Efficiency

♦ No Current-Sense Resistor (Lossless I

)

LIMIT

♦ QUICK-PWM with 100ns Load-Step Response

♦ ±1% V Accuracy over Line and Load

OUT

♦ 4-Bit On-Board DAC (MAX1710)

♦ 5-Bit On-Board DAC (MAX1711)

♦ 0.925V to 2V Output Adjust Range (MAX1711)

♦ 2V to 28V Battery Input Range

High DC precision is ensured by a 2-wire remote-sens-

ing scheme that compensates for voltage drops in both

ground bus and the supply rail. An on-board, digital-to-

analog converter (DAC) sets the output voltage in com-

pliance with Mobile Pentium II^®CPU specifications.

♦ 200/300/400/550kHz Switching Frequency

♦ Remote GND and V

Sensing

OUT

♦ Over/Undervoltage Protection

♦ 1.7ms Digital Soft-Start

The MAX1710 achieves high efficiency at a reduced

cost by eliminating the current-sense resistor found in

traditional current-mode PWMs. Efficiency is further

enhanced by an ability to drive very large synchronous-

rectifier MOSFETs.

♦ Drives Large Synchronous-Rectifier FETs

♦ 2V ±1% Reference Output

♦ Power-Good Indicator

Single-stage buck conversion allows these devices to

directly step down high-voltage batteries for the highest

possible efficiency. Alternatively, 2-stage conversion

(stepping down the +5V system supply instead of the

battery) at a higher switching frequency allows the mini-

mum possible physical size.

♦ Small 24-Pin QSOP Package

Ord e rin g In fo rm a t io n

PART

TEMP. RANGE

-40°C to +85°C

PIN-PACKAGE

24 QSOP

MAX1710EEG

MAX1711EEG

The MAX1710 and MAX1711 are identical except that

the MAX1711 has a 5-bit DAC rather than a 4-bit DAC.

Also, the MAX1711 has a fixed overvoltage protection

24 QSOP

Min im a l Op e ra t in g Circ u it

threshold at V

= 2.25V and undervoltage protection

OUT

at V

= 0.8V, whereas the MAX1710 has variable

BATTERY

4.5V TO 28V

OUT

thresholds that track V

. The MAX1711 is intended

OUT

+5V INPUT

for a p p lic a tions whe re the DAC c od e ma y c ha ng e

dynamically.

OVP*

V+

SHDN

FBS

Ap p lic a t io n s

BST

Notebook Computers

Docking Stations

ILIM

GNDS

OUTPUT

0.925V TO 2V

(MAX1711)

MAX1710

MAX1711

CPU Core DC-DC Converters

Single-Stage (BATT to V

Converters

CORE)

REF

Two-Stage (+5V to V

) Converters

CORE

PGND

QUICK-PWM is a trademark of Maxim Integrated Products.

Mobile Pentium II is a registered trademark of Intel Corp.

D/A

INPUTS

SKIP

*MAX1710 ONLY

**MAX1711 ONLY

D4**

Pin Configuration appears at end of data sheet.

GND

________________________________________________________________ Maxim Integrated Products

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

For small orders, phone 1-800-835-8769.

12 3 4 5 6 7...28

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与MAX1711相关器件

型号	品牌	获取价格	描述	数据表
MAX17112	MAXIM	获取价格	High-Performance, Step-Up, DC-DC Converter
MAX17112	ADI	获取价格	高性能、升压型DC-DC转换器
MAX17112ETB+	MAXIM	获取价格	High-Performance, Step-Up, DC-DC Converter
MAX17112ETB+T	MAXIM	获取价格	Switching Regulator/Controller, Current-mode, 1200kHz Switching Freq-Max, BICMOS, PDSO10,
MAX17113ETL+	MAXIM	获取价格	Switching Regulator,
MAX17114	MAXIM	获取价格	Fully Assembled and Tested
MAX17114ETM+	MAXIM	获取价格	Switching Regulator,
MAX17114ETM+CAE	MAXIM	获取价格	Switching Regulator,
MAX17114ETM+CB2	MAXIM	获取价格	Switching Regulator,
MAX17114ETM+T	MAXIM	获取价格	Switching Regulator,

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