MAX724

更新时间： 2024-09-11 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
12页	93K
描述
5A/2A Step-Down, PWM, Switch-Mode DC-DC Regulators

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中文翻译

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数据手册

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MAX724 数据手册

19-0107; Rev 3; 9/95

5 A/2 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

4/MAX726

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

___________________________Fe a t u re s

The MAX724/MAX726 are monolithic, bipolar, pulse-

width modulation (PWM), switch-mode DC-DC regula-

tors op timize d for s te p -d own a p p lic a tions . The

MAX724 is rated at 5A, and the MAX726 at 2A. Few

external components are needed for standard opera-

tion because the power switch, oscillator, and control

circuitry are all on-chip. Employing a classic buck

topology, these regulators perform high-current step-

down functions, but can also be configured as invert-

ers, negative boost converters, or flyback converters.

♦ Input Range: Up to 40V

♦ 5A On-Chip Power Switch (MAX724)

2A On-Chip Power Switch (MAX726)

♦ Adjustable Output: 2.5V to 35V

♦ 100kHz Switching Frequency

♦ Excellent Dynamic Characteristics

♦ Few External Components

♦ 8.5mA Quiescent Current

♦ TO-220 Package

These regulators have excellent dynamic and transient

response characteristics, while featuring cycle-by-cycle

current limiting to protect against overcurrent faults and

short-circuit output faults. The MAX724/MAX726 also

have a wide 8V to 40V input range in the buck step-

down configuration. In inverting and boost configura-

tions, the input can be as low as 5V.

The MAX724/MAX726 are available in a 5-pin TO-220

package. The devices have a preset 100kHz oscillator

frequency and a preset current limit of 6.5A (MAX724)

or 2.6A (MAX726).

______________Ord e rin g In fo rm a t io n

PART

MAX724CCK

MAX724ECK

MAX726CCK

MAX726ECK

TEMP. RANGE

0°C to +70°C

PIN-PACKAGE

5 TO-220

-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

5 TO-220

Distributed Power from High-Voltage Buses

High-Current, High-Voltage Step-Down Applications

High-Current Inverter

Negative Boost Converter

Multiple-Output Buck Converter

Isolated DC-DC Conversion

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

__________________P in Co n fig u ra t io n

FRONT VIEW

INPUT

8V TO 40V

OUTPUT

5V AT 5A

50µH

220µF

MAX724

MAX726

2.8k

MBR745

GND

MAX724

GND

470µF

2.21k

2.7k

5-PIN TO-220

0.01µF

CASE IS CONNECTED TO GROUND.

STANDARD PACKAGE HAS STAGGERED LEADS.

CONTACT FACTORY FOR STRAIGHT LEADS.

5A STEP-DOWN CONVERTER

________________________________________________________________ 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 5 6 7...12

中文翻译

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与MAX724相关器件

型号	品牌	获取价格	描述	数据表
MAX724C/D	MAXIM	获取价格	Current-Mode SMPS Controller
MAX724CCK	MAXIM	获取价格	5A/2A Step-Down, PWM, Switch-Mode DC-DC Regulators
MAX724CCK-SL	MAXIM	获取价格	Switching Regulator
MAX724CCM	MAXIM	获取价格	Current-Mode SMPS Controller
MAX724CKS	MAXIM	获取价格	Current-Mode SMPS Controller
MAX724ECK	MAXIM	获取价格	5A/2A Step-Down, PWM, Switch-Mode DC-DC Regulators
MAX724ECM	MAXIM	获取价格	Current-Mode SMPS Controller
MAX724EKS	MAXIM	获取价格	Current-Mode SMPS Controller
MAX724HC/D	MAXIM	获取价格	Current-Mode SMPS Controller
MAX724HCCK	MAXIM	获取价格	Current-Mode SMPS Controller

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