MAX726

更新时间： 2024-09-14 22:55:15

品牌	Logo	应用领域
美信 - MAXIM		稳压器开关
页数	文件大小	规格书
4页	42K
描述
5V/3.3V/3V 5A Step-Down, PWM, Switch-Mode DC-DC Regulators

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数据手册

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MAX726 数据手册

19-0182; Rev 3; 9/95

5 V/3 .3 V/3 V 5 A S t e p -Do w n , P WM,

S w it c h -Mo d e DC-DC Re g u la t o rs

/MAX789

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

___________________________Fe a t u re s

♦ Input Range: Up to 40V

The MAX787/MAX788/MAX789 are monolithic, bipolar,

pulse-width modulation (PWM), switch-mode, step-down

DC-DC regulators. Each is rated at 5A. Very few external

components are needed for standard operation because

the power switch, oscillator, feedback, and control circuitry

are all on-chip. Employing a classic buck topology, these

regulators perform high-current step-down functions.

♦ 5A On-Chip Power Switch

♦ Fixed Outputs: 5V (MAX787)

3.3V (MAX788)

3V (MAX789)

♦ 100kHz Switching Frequency

♦ Excellent Dynamic Characteristics

♦ Few External Components

♦ 8.5mA Quiescent Current

♦ TO-220 Package

The MAX787/MAX788/MAX789 have excellent dynamic

and transient response characteristics, while featuring

cycle-by-cycle current limiting to protect against overcurrent

faults and short-circuit output faults. They also have a wide

8V to 40V input range.

______________Ord e rin g In fo rm a t io n

Each regulator is available in a 5-pin TO-220 package.

These devices have a preset 100kHz oscillator frequency

and a preset current limit of 6.5A. See the MAX724/

MAX726 data sheet for more applications information.

PART

TEMP. RANGE

0°C to +70°C

PIN-PACKAGE

5 TO-220

MAX787CCK

MAX787ECK

MAX788CCK

MAX788ECK

MAX789CCK

MAX789ECK

-40°C to +85°C

0°C to +70°C

5 TO-220

_______________________Ap p lic a t io n s

-40°C to +85°C

0°C to +70°C

5 TO-220

Distributed Power from High-Voltage Buses

High-Current, High-Voltage Step-Down

Multiple-Output Buck Converter

5 TO-220

-40°C to +85°C

5 TO-220

___________P ro d u c t S e le c t io n Gu id e

PART

OUT

(V)

MAX (A)

OUT

MAX724

MAX726

MAX727

MAX728

MAX729

MAX787

MAX788

MAX789

Adjustable

3.3

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

3.3

INPUT

8V TO 40V

OUTPUT

5V AT 5A

50µH

__________________P in Co n fig u ra t io n

220µF

MAX787

MBR745

FRONT VIEW

SENSE

470µF

MAX787

MAX788

MAX789

2.7k

GND

0.01µF

SENSE

5-PIN TO-220

STEP-DOWN CONVERTER

CASE IS CONNECTED TO GROUND. STANDARD PACKAGE HAS STAGGERED LEADS.

CONTACT FACTORY FOR STRAIGHT LEADS.

________________________________________________________________ Maxim Integrated Products

Ca ll t o ll fre e 1 -8 0 0 -9 9 8 -8 8 0 0 fo r fre e s a m p le s o r lit e ra t u re .

12 3 4

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与MAX726相关器件

型号	品牌	获取价格	描述	数据表
MAX726CCK	MAXIM	获取价格	5A/2A Step-Down, PWM, Switch-Mode DC-DC Regulators
MAX726CCK-SL	MAXIM	获取价格	Switching Regulator
MAX726CCM	MAXIM	获取价格	Current-Mode SMPS Controller
MAX726CKS	MAXIM	获取价格	Current-Mode SMPS Controller
MAX726CWE	MAXIM	获取价格	Current-Mode SMPS Controller
MAX726ECK	MAXIM	获取价格	5A/2A Step-Down, PWM, Switch-Mode DC-DC Regulators
MAX726ECK-SL	MAXIM	获取价格	Switching Regulator
MAX726ECM	MAXIM	获取价格	Current-Mode SMPS Controller
MAX726EKS	MAXIM	获取价格	Current-Mode SMPS Controller
MAX726HCCK	MAXIM	获取价格	Current-Mode SMPS Controller

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