Datasheet > AME5145AEEVADJY

AME5145AEEVADJY

更新时间： 2024-01-19 10:52:19

品牌	Logo	应用领域
安茂微 - AME		/
页数	文件大小	规格书
23页	187K
描述
Switching Regulator/Controller

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技术参数
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AME5145AEEVADJY 技术参数

生命周期：	Contact Manufacturer	包装说明：	,
Reach Compliance Code：	compliant	风险等级：	5.77
Base Number Matches：	1

AME5145AEEVADJY 数据手册

AME

1.6 MHz Boost Converter With

30V Internal FET Switch

AME5145

n General Description

n Typical Application

The AME5145 switching regulator is current-mode boost

converters operating at fixed frequency of 1.6 MHz.

L/6.8mH

V_OUT

The use of SOT-25/TSOT-25, DFN-8C & MSOP-8 pack-

ages, made possible by the minimal power loss of the

internal 1.8A switch, and use of small inductor and ca-

pacitors result in the industry's highest power density.

The 30V internal switch makes these solutions perfect

for boosting to voltages up to 30V.

V_IN

4.2V

800mA

51K

AME5145

43K

GND

4.7mF

These parts have a logic-level shutdown pin that can

be used to reduce quiescent current and extend battery

life. Protection is provided through cycle-by-cycle cur-

rent limiting and thermal shutdown. Internal compensa-

tion simplifies and reduces component count.

680pF

22mF

13.3K

GND

Figure 1. 4.2V to 5V Boost Converter

L/10mH

n Features

V_OUT

l 30V DMOS FET Switch

V_IN

l 1.6 MHz Switching Frequency

l Low R_DSONDMOS FET

12V

400mA

51K

AME5145

l Switch Current Up to 1.8A

117K

l Wide Input Voltage Range (2.7V-5.5V)

l Low Shutdown Current (<1mA)

l SOT-25/TSOT-25, DFN-8C & MSOP-8 Packages

l Uses Tiny Capacitors and Inductor

l Cycle-by-Cycle Current Limiting

l All AME's Lead Free Products Meet RoHS

Standards

GND

4.7mF

13.3K

220pF

GND

Figure 2. 5V to 12V Boost Converter

L/10mH

n Applications

V_OUT

l White LED Current Source

l PDA's and Palm-Top Computers

l Digital Cameras

V_IN

18V

250mA

51K

AME5145

l Portable Phones and Games

l Local Boost Regulator

183K

GND

4.7mF

160pF

4.7mF

13.3K

GND

Figure 3. 5V to 18V Boost Converter

Rev.B.01

12 3 4 5 6 7...23

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