MAX1636

更新时间： 2024-09-11 22:57:59

品牌	Logo	应用领域
美信 - MAXIM		控制器便携式
页数	文件大小	规格书
24页	220K
描述
Low-Voltage, Precision Step-Down Controller for Portable CPU Power

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中文翻译

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数据手册

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MAX1636 数据手册

19-1268; Rev 0; 8/97

Lo w -Vo lt a g e , P re c is io n S t e p -Do w n

Co n t ro lle r fo r P o rt a b le CP U P o w e r

MAX136

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

____________________________Fe a t u re s

♦ ±1% DC Accuracy (Adjustable Mode)

♦ Output Overvoltage Crowbar Protection

♦ Output Undervoltage Shutdown

The MAX1636 is a synchronous, buck, switch-mode,

power-supply controller that generates the CPU supply

voltage in battery-powered systems. It achieves ±1%

output voltage accuracy and offers the excellent load-

transient response needed by upcoming generations of

dynamic-clock CPUs.

♦ Adjustable Switching Frequency to 340kHz

♦ Low-Dropout Operation

Up to 95% efficiency is achieved through synchronous

rectification and Maxim’s proprietary Idle Mode™ con-

trol s c he me . Effic ie nc y is g re a te r tha n 80% ove r a

1000:1 load-current range, extending battery life in sys-

tem-suspend or standby modes. Excellent dynamic

response corrects output load transients caused by the

latest dynamic-clock CPUs within five 300kHz clock

cycles. Strong, 1A, on-board gate drivers ensure fast,

external N-channel MOSFET switching.

♦ Idle Mode Pulse-Skipping Operation

♦ 1.10V to 5.5V Adjustable Output Voltage

♦ 2.5V/3.3V Dual-Mode Fixed-Output Settings

♦ Internal Digital Soft-Start

♦ 1.1V ±1% Reference Output

♦ 3µA (typ) Shutdown Current

The MAX1636 features a logic-controlled and synchro-

nizable, fixed-frequency, pulse-width-modulation (PWM)

operating mode that reduces noise and RF interference

in sensitive mobile communications and pen-entry appli-

cations. Holding SKIP high forces fixed-frequency mode

for lowest noise under all load conditions.

RESET)

♦ Open-Drain Power-Good Output (

♦ 20-Pin SSOP Package

______________Ord e rin g In fo rm a t io n

For a low-cost version that omits the +5V VL linear-

regulator block and comes in a smaller 16-pin QSOP

package, refer to the MAX1637 data sheet.

PART

TEMP. RANGE

PIN-PACKAGE

MAX1636EAP

-40°C to +85°C

20 SSOP

________________________Ap p lic a t io n s

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

Notebook Computers

Subnotebook Computers

Desktop Computers

Bus-Termination Supplies

OVP

V+

SHDN

__________________P in Co n fig u ra t io n

TOP VIEW

CSH

CSL

20 SKIP

19 LX

18 DH

17 BST

16 PGND

15 DL

14 VL

BST

RESET

SHDN

OVP

MAX1636

SKIP

PGND

SYNC

REF

CSH

CSL

GND

SYNC

GND

13 V+

REF

GND 10

11 FB

TO µP

RESET

GND

SSOP

Idle Mode is a trademark of Maxim Integrated Products.

________________________________________________________________ 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MAX1636相关器件

型号	品牌	获取价格	描述	数据表
MAX1636CPUEVKIT	MAXIM	获取价格	CPU Supply Evaluation Kit for the MAX1636
MAX1636EAP	MAXIM	获取价格	Low-Voltage, Precision Step-Down Controller for Portable CPU Power
MAX1636EAP+T	MAXIM	获取价格	Switching Controller, Current-mode, 1A, 330kHz Switching Freq-Max, BICMOS, PDSO20, 5.30 MM
MAX1636EAP-T	MAXIM	获取价格	Switching Controller, Current-mode, 1A, 330kHz Switching Freq-Max, BICMOS, PDSO20, 5.30 MM
MAX1637	MAXIM	获取价格	Miniature, Low-Voltage, Precision Step-Down Controller
MAX1637	ADI	获取价格	微型、低电压、高精度降压型控制器
MAX1637EEE	MAXIM	获取价格	Miniature, Low-Voltage, Precision Step-Down Controller
MAX1637EEE+	MAXIM	获取价格	Switching Controller, Current-mode, 338kHz Switching Freq-Max, BICMOS, PDSO16, 0.150 INCH,
MAX1637EVKIT	MAXIM	获取价格	Single/Dual/Quad.400MHz.Low-Power.Current Feedback Amplifiers[MAX4112/MAX4113/MAX4117/MAX4
MAX1638	MAXIM	获取价格	High-Speed Step-Down Controller with Synchronous Rectification for CPU Power

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