Datasheet > ACT4088

ACT4088

更新时间： 2022-04-23 23:00:11

品牌	Logo	应用领域
技领 - ACTIVE-SEMI		转换器
页数	文件大小	规格书
11页	1071K
描述
28V, 1.5A, 1.4MHz Step-Down DC/DC Converter in SOT23-6

阅读下载

获取价格

数据手册

如果您发现信息不准确，欢迎纠错

ACT4088 数据手册

ACT4088

Rev PrA, 24-Jul-07

Advanced Product Information – All Information Subject to Change

28V, 1.5A, 1.4MHz Step-Down DC/DC Converter in SOT23-6

GENERAL DESCRIPTION

FEATURES

 Wide 4.5V to 28V Input Voltage Range

The ACT4088 is a current-mode step-down DC/DC

converter that supplies up to 1.5A into 5V from a

12V input. 1.4MHz switching frequency allows the

use of tiny external components, and internal loop

compensation provides simple, stable power sup-

plies with a minimum of external components. Opti-

mized for use with ceramic input and output capaci-

tors, the ACT4088 provides a very compact 1.5A

power supply for space constrained mobile and

consumer applications.

 1.5A Output Current (12V_INto 5V_OUT

 Output Adjustable Down to 0.81V

 0.3Ω Internal Power MOSFET

 Up to 92% Efficiency

)

 Stable with Low ESR Ceramic Output Capacitors

 Fixed 1.4MHz Operating Frequency

 Internal Soft-Start Function

The ACT4088 operates over a wide input voltage

range and utilizes current-mode operation to pro-

vide excellent line and load transient response

while requiring no external compensation compo-

nents. Fault protection includes cycle-by-cycle cur-

rent limiting, frequency fold-back, hiccup mode, and

thermal shutdown. Internal soft-start provides a

controlled startup with no overshoot, even at light

loads.

 Over Current Protection with Hiccup-Mode

 Thermal Shutdown

 Available in a SOT23-6 Package

APPLICATIONS

 TFT LCD Monitors

The ACT4088 is available in a tiny SOT23-6 pack-

age and requires very few external components.

 Portable DVDs, Headphones, MP3 Players, etc.

 Car-Powered or Battery-Powered Equipment

 Set-Top Boxes

 Telecom Power Supplies

 DSL and Cable Modems and Routers

TYPICAL APPLICATION CIRCUIT

Innovative Products. Active Solutions.

- 1 -

www.active-semi.com

12 3 4 5 6 7...11

下载PDF

与ACT4088相关器件

型号	品牌	描述	获取价格	数据表
ACT4088_08	ACTIVE-SEMI	28V, 1.5A, 1.4MHz Step-Down DC/DC Converter in SOT23-6	获取价格
ACT4088_11	ACTIVE-SEMI	28V, 1.5A, 1.4MHz Step-Down DC/DC Converter in SOT23-6	获取价格
ACT4088_12	ACTIVE-SEMI	28V, 1.5A, 1.4MHz Step-Down DC/DC Converter in SOT23-6	获取价格
ACT4088US-T	ACTIVE-SEMI	28V, 1.5A, 1.4MHz Step-Down DC/DC Converter in SOT23-6	获取价格
ACT4088US-T8082	ACTIVE-SEMI	28V, 1.5A, 1.4MHz Step-Down DC/DC Converter in SOT23-6	获取价格
ACT410	ACTIVE-SEMI	ActivePSRTM Quasi-Resonant PWM Controller	获取价格