Datasheet > 电源电路 > 开关式稳压器或控制器> MAX771EPA

MAX771EPA

更新时间： 2024-09-26 22:12:31

品牌	Logo	应用领域
美信 - MAXIM		控制器
页数	文件大小	规格书
20页	207K
描述
5V/12V/15V or Adjustable, High-Efficiency, Low IQ, Step-Up DC-DC Controllers

阅读下载

中文翻译

获取价格

数据手册
替代型号

如果您发现信息不准确，欢迎纠错

MAX771EPA 数据手册

19-0202; Rev 2; 11/96

5 V/1 2 V/1 5 V o r Ad ju s t a b le , High-Effic ie nc y,

Low I , Ste p-Up DC-DC Controlle rs

0–MAX73

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

____________________________Fe a t u re s

♦ 90% Efficiency for 10mA to 1A Load Currents

♦ Up to 15W Output Power

The MAX770–MAX773 step-up switching controllers pro-

vid e 90% e ffic ie nc y ove r a 10mA to 1A loa d . A

unique current-limited pulse-frequency-modulation (PFM)

control scheme gives these devices the benefits of

pulse-width-modulation (PWM) converters (high efficiency

at heavy loads), while using less than 110µA of supply

current (vs. 2mA to 10mA for PWM converters).

♦ 110µA Max Supply Current

♦ 5µA Max Shutdown Current

♦ 2V to 16.5V Input Range

These ICs use tiny external components. Their high

switching frequencies (up to 300kHz) allow surface-

mount magnetics of 5mm height and 9mm diameter.

(MAX770/MAX771/MAX772)

♦ Internal Shunt Regulator for High Input Voltages

(MAX773)

The MAX770/MAX771/MAX772 accept input voltages

from 2V to 16.5V. Output voltages are preset at 5V,

(MAX770), 12V (MAX771), and 15V (MAX772); they can

also be adjusted using two resistors.

♦ Preset or Adjustable Output Voltages

MAX770: 5V or Adjustable

MAX771: 12V or Adjustable

The MAX773 accepts inputs from 3V to 16.5V. For a wider

input range, it features an internal shunt regulator that

allows unlimited higher input voltages. The MAX773’s out-

put can be set to 5V, 12V, or 15V, or it can be adjusted

with two resistors.

MAX772: 15V or Adjustable

MAX773: 5V, 12V, 15V, or Adjustable

♦ Current-Limited PFM Control Scheme

♦ 300kHz Switching Frequency

The MAX770–MAX773 drive external N-channel MOSFET

switches, allowing them to power loads up to 15W. If less

p owe r is re q uire d , us e the MAX756/MAX757 or

MAX761/MAX762 step-up switching regulators with on-

board MOSFETs.

______________Ord e rin g In fo rm a t io n

PART

TEMP. RANGE

0°C to +70°C

PIN-PACKAGE

Plastic DIP

8 SO

MAX770CPA

MAX770CSA

MAX770C/D

MAX770EPA

MAX770ESA

MAX770MJA

0°C to +70°C

________________________Ap p lic a t io n s

0°C to +70°C

Dice*

Palmtops/Handy-Terminals

High-Efficiency DC-DC Converters

Battery-Powered Applications

Positive LCD-Bias Generators

Portable Communicators

-40°C to +85°C

-55°C to +125°C

8 Plastic DIP

8 SO

8 CERDIP**

Ordering Information continued at end of data sheet.

*Contact factory for dice specifications.

**Contact factory for availability and processing to MIL-STD-883B.

Flash Memory Programmers

_________________P in Co n fig u ra t io n s

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

TOP VIEW

INPUT

2V TO V

OUT

EXT

V+

OUTPUT

12V

GND

AGND

MAX770

MAX771

MAX772

EXT

MAX771

SHDN

ON/OFF

REF

SHDN

REF

DIP/SO

V+

FB AGND GND

Pin Configurations continued at end of data sheet.

________________________________________________________________ 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...20

中文翻译

下载PDF

MAX771EPA 替代型号

型号	品牌	替代类型	描述	数据表
MAX771CSA+T	MAXIM	类似代替	Switching Controller, Current-mode, 1A, 300kHz Switching Freq-Max, BICMOS, PDSO8, SO-8
MAX1605ETT+T	MAXIM	类似代替	Switching Regulator, Current-mode, 0.58A, 500kHz Switching Freq-Max, 3 X 3 MM, 0.80 MM HEI

与MAX771EPA相关器件

型号	品牌	获取价格	描述	数据表
MAX771ESA	MAXIM	获取价格	5V/12V/15V or Adjustable, High-Efficiency, Low IQ, Step-Up DC-DC Controllers
MAX771ESA+T	MAXIM	获取价格	Switching Controller, Current-mode, 1A, 300kHz Switching Freq-Max, BICMOS, PDSO8, SO-8
MAX771ESA-T	MAXIM	获取价格	Switching Controller, Current-mode, 1A, 300kHz Switching Freq-Max, BICMOS, PDSO8, SO-8
MAX771MJA	MAXIM	获取价格	5V/12V/15V or Adjustable, High-Efficiency, Low IQ, Step-Up DC-DC Controllers
MAX772	MAXIM	获取价格	5V/12V/15V or Adjustable, High-Efficiency, Low IQ, Step-Up DC-DC Controllers
MAX77231	ADI	获取价格	2.75V至4.8V输入、10mA输出、35μVRMS 超低噪声和纹波升压调节器
MAX77231EZL+	MAXIM	获取价格	Switching Regulator, 0.3A, BICMOS, PBGA9, WLP-9
MAX77271EWL+	MAXIM	获取价格	Switching Regulator, 3750kHz Switching Freq-Max, BICMOS, PBGA9, WLP-9
MAX77271EWL+T	MAXIM	获取价格	Switching Regulator, 3750kHz Switching Freq-Max, BICMOS, PBGA9, WLP-9
MAX77278	ADI	获取价格	超低功耗PMIC，带有3路输出SIMO、优化用于小型Li+电池的电源路径充电器、425mA

与MAX771EPA相关文章

塔塔电子与力积电达成技术转让协议，携手建设印度首座晶圆厂
2024-09-29

19
英特尔震撼发布：128核心256线程的至强6性能核处理器
2024-09-29

13
SK海力士量产12层HBM3E，容量高达36GB
2024-09-27

17
意法半导体传感器驱动Sphere，开启沉浸式电影新时代
2024-09-27

26

产品中心

服务支持

精选活动

关于我们

帮助中心

MAX771EPA

MAX771EPA 数据手册

MAX771EPA 替代型号

与MAX771EPA相关器件

与MAX771EPA相关文章

您还可以找

产品中心

服务支持

精选活动

关于我们

帮助中心

MAX771EPA

MAX771EPA 数据手册

MAX771EPA 替代型号

与MAX771EPA相关器件

与MAX771EPA相关文章

您还可以找

您在本页遇到什么问题？