MAX8734A Datasheet

IC型号：
MAX8734A
PDF描述：
高效率、四路输出、主电源控制器，用于笔记本电脑
文件大小：
372.00KB
PDF页数：
33页
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19-3318; Rev 0; 6/04

鍙岃矾銆侀珮鏁堢巼銆?/div>

鍏虫柇鏃朵负楂橀樆鐨勯檷鍘嬪瀷鎺у埗鍣?/div>

MAX8743

_______________________________

姒傝堪

MAX8743

鏄竴娆惧弻璺剦锟?frac12;璋冨埗

(PWM)

鎺у埗鍣紝涓撲负闄嶅帇

鍨?/div>

(buck)

鎷撴墤璁捐锛屽叿鏈夐珮鏁堢巼銆佸崜瓒婄殑锟斤拷锟芥€佸搷搴斿拰楂?/div>

杈撳嚭绮惧害绛夌壒鐐癸紝杩欎簺鐗规€ф槸绗旇鏈數鑴戜腑浠庨珮鍘嬬數

姹犻檷鍘嬪緱鍒拌姱鐗囩粍鍜?/div>

RAM

鎵€闇€鐨勶拷½锟藉帇鐢垫簮鎵€蹇呴』鐨勩€傚皢

鍏?/div>

CS_

杈撳叆寮曡剼鎺ヨ嚦锟?frac12;锟戒晶妫€娴佺數闃诲彲鎻愪緵绮剧‘鐨勭數娴侀檺

鍒讹紝鎴栬€呬笌

LX_

杩炴帴锛屽埄鐢拷½锟戒晶

MOSFET

锟?frac12;锟戒负鐢垫祦妫€娴?/div>

鍏冧欢銆傚叧鏂ā寮忎笅杈撳嚭鍙樹负楂橀樆锛岃繖鏍峰氨閬垮厤浜嗚緭鍑哄嚭

鐜拌礋鍘嬶紝鍙渷涓嬩竴鍙緭鍑虹鐨勮倴鐗瑰熀浜屾瀬绠＄殑鎴愭湰銆?/div>

PWM

鎺у埗鍣ㄦ槸涓€涓嚜婵€鎸崱鐨勶紝鍏锋湁杈撳叆鍓嶉鐨勬亽瀵奸€?/div>

鏃堕棿鎺у埗鍣ㄣ€傝繖绉嶇粨鏋勬彁渚涜秴楂橀€熺灛鎬佸搷搴旓紝鍙€傚簲寰?/div>

锟?frac12;鑼冨洿鐨勮緭鍏?/div>

杈撳嚭鐢靛帇宸紝鍏锋湁锟?frac12;锟界數婧愮數娴佸拰寰堬拷½鐨勮礋

锟?frac12;½璋冩暣鐗规€с€?/div>

MAX8743

鐨勮ˉ鍋块潪甯哥畝鍗曘€?/div>

MAX8743

鐢ㄤ簬鍗曠骇

buck

锟?frac12;锟芥崲鐩存帴浠庨珮鍘嬬數姹犻檷鍘嬪彲鑾峰緱

鏈€楂樼殑锟?frac12;锟芥崲鏁堢巼銆傦拷½锟戒负鍙﹀涓€绉嶉€夋嫨锛岄噰鐢ㄤ袱绾э拷½锟芥崲

(

浠ユ洿楂樼殑寮€鍏抽鐜囦粠

绯荤粺鐢垫簮闄嶅帇鑰岄潪浠庣數姹?/div>

)

鍙疄

鐜版渶灏忕殑鐗╃悊灏哄銆?/div>

MAX8743

鐢ㄦ潵涓鸿姱鐗囩粍銆?/div>

DRAM

銆?/div>

CPU I/O

鎴栧叾浠栵拷½锟藉帇

绯荤粺鎻愪緵锟?frac12;锟借嚦

鐨勭數婧愩€?/div>

MAX8743

閲囩敤

寮曡剼

QSOP

鍜?/div>

寮曡剼钖勫瀷

QFN

灏佽銆?/div>

_______________________________

鐗规€?/div>

鈾?/div>

瓒呴珮鏁堢巼

鈾?/div>

鍙€夋嫨绮惧瘑闄愭祦

鈾?/div>

100ns

璐燂拷½½鐬€佸搷搴旂殑

Quick-PWM

鈾?/div>

鏁翠釜杈撳叆鍜岃礋锟?frac12;½鑼冨洿鍐?/div>

鐨?/div>

VOUT

绮惧害

鈾?/div>

鍏虫柇妯″紡涓珮鍑轰负楂橀樆

鈾?/div>

Dual Mode

鍥哄畾

1.8V/1.5V/

鍙皟鎴?/div>

2.5V/

鍙皟杈撳嚭

鈾?/div>

鍒?/div>

5.5V

鐨勮緭鍑哄彲璋冭寖鍥?/div>

鈾?/div>

鍒?/div>

28V

鐨勭數姹犺緭鍏ヨ寖鍥?/div>

鈾?/div>

200kHz/300kHz/420kHz/540kHz

鐨勯瀹氬紑鍏抽鐜?/div>

鈾?/div>

鍙皟杩囧帇淇濇姢

鈾?/div>

1.7ms

鏁板瓧锟?frac12;锟藉惎鍔?/div>

鈾?/div>

锟?frac12;椹卞姩澶у閲忓悓姝ユ暣娴佸櫒

FET

鈾?/div>

Power-Good

绐楀彛姣旇緝鍣?/div>

鈾?/div>

2V 卤1%

鐨勫熀鍑嗚緭鍑?/div>

____________________________

瀹氳喘淇℃伅

PART

MAX8743EEI

TEMP RANGE

-40掳C to +85掳C

PIN-PACKAGE

28 QSOP

36 Thin QFN

6mm x 6mm

_______________________________

搴旂敤

绗旇鏈數鑴?/div>

CPU

鏍哥數婧?/div>

鑺墖缁?/div>

/RAM

渚涚數锛岀數鍘嬪彲锟?frac12;锟借嚦

1.8V

涓?/div>

2.5V I/O

鐢垫簮

MAX8743ETX

________________________

鏈€绠€宸ワ拷½锟界數璺?/div>

5V INPUT

ILIM1

ILIM2

ON1

ON2

BST1

OUTPUT1

1.8V

DH1

LX1

DL1

V+

UVP

OVP

BATTERY

4.5V TO 28V

MAX8743EEI

BST2

DH2

LX2

DL2

OUTPUT2

2.5V

CS2

TON

CS1

OUT1

PGOOD

OUT2

REF

SKIP

寮曡剼閰嶏拷½锟藉湪鏁版嵁璧勬枡鐨勬渶鍚庨儴鍒嗙粰鍑恒€?/div>

Quick-PWM

鍜?/div>

Dual Mode

鏄?/div>

Maxim Integrated Products, Inc.

鐨勫晢鏍囥€?/div>

FB1

GND

FB2

________________________________________________________________

Maxim Integrated Products

鏈枃鏄?/div>

Maxim

姝ｅ紡鑻辨枃璧勬枡鐨勮瘧鏂囷紝

Maxim

涓嶅缈昏瘧涓瓨鍦ㄧ殑宸紓鎴栫敱姝や骇鐢熺殑閿欒璐熻矗銆傝娉ㄦ剰璇戞枃涓彲锟?frac12;瀛樺湪鏂囧瓧缁勭粐鎴?/div>

缈昏瘧閿欒锛屽闇€纭浠伙拷½锟借瘝璇殑鍑嗙‘鎬э紝璇峰弬鑰?/div>

Maxim

鎻愪緵鐨勮嫳鏂囩増璧勬枡銆?/div>

绱㈠彇鍏嶈垂鏍峰搧鍜屾渶鏂扮増鐨勬暟鎹祫鏂欙紝璇疯闂?/div>

Maxim

鐨勪富椤碉細

www.maxim-ic.com.cn

銆?/div>

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MAX8737,MAX8737EVKIT,MAX8738

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