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AMS4154 参数 Datasheet PDF下载

AMS4154图片预览
型号: AMS4154
PDF下载: 下载PDF文件 查看货源
内容描述: 2A输出PWM降压转换器 [2A OUTPUT PWM BUCK CONVERTER]
分类和应用: 转换器输出元件
文件页数/大小: 5 页 / 277 K
品牌: ADMOS [ ADVANCED MONOLITHIC SYSTEMS ]
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Advanced
Monolithic
Systems
FEATURES
Stable with low ESR Output Ceramic Capacitors
Up to 99% On time
2A Output Current
Wide Operating Input Voltage Range 5.5V to 32V
Fixed 330 kHz Frequency
Thermal Shutdown
Cycle-by-cycle Over Current Protection
Under Voltage Lockout
5V reference output
Adjustable output from 0.6V
AMS4154
2A OUTPUT PWM BUCK CONVERTER
RoHS compliant
APPLICATIONS
Battery Chargers
Portable (Notebook) Computers
Industrial power supply
Point of regulation for high performance electronics
Consumer Electronics
Audio Power Amplifiers
Distributed Power Systems
Pre-Regulator for Linear Regulators
LCD TVs and LCD monitors
Automotive electronics
GENERAL DESCRIPTION
The AMS4154 is a step-down converter for high voltage applications. Current mode operation provides easier compensation
and fast transient response. Internal cycle-by-cycle current limiting and thermal shutdown provides the necessary protection in
faults situation. A 5V reference voltage is available that can supply up to 2mA current.
ORDERING INFORMATION
OUTPUT
VOLTAGE
Adjustable
PACKAGE TYPE
8 Lead SOIC
AMS4154S
-25°C to 125°C
TEMP. RANGE
TYPICAL APPLICATION
PIN CONNECTIONS
8L SOIC
SO Package (S)
VIN
ON
OFF
BST
470n
L1
2.5V/2A
EN
LX
4.7µH
31.7K
BST
VIN
LX
GND
1
2
3
4
8 REF
7 EN
6 COMP
5
F/B
COMP
10µF
3.9K
V
REF
22µF
GND
F/B
B220
10K
Top View
4.7n
Advanced Monolithic Systems, Inc.
www.advanced-monolithic.com
Phone (925) 443-0722
Fax (925) 443-0723