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SC1453ITSK-XXXTRT

更新时间： 2024-11-09 04:05:35
品牌 Logo 应用领域
商升特 - SEMTECH 稳压器
页数 文件大小 规格书
14页 245K
描述
150mA Ultra Low Dropout Regulator with Low Noise Bypass

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SC1453ITSK-XXXTRT 数据手册

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SC1453  
150mA Ultra Low Dropout  
Regulator with Low Noise Bypass  
POWER MANAGEMENT  
Description  
Features  
The SC1453 is a low dropout linear regulator that  
operates from a +2.25V to +6.5V input range and  
delivers up to 150mA. A PMOS pass transistor allows  
the low 75µA supply current to remain independent of  
load, making these devices ideal for battery operated  
portable equipment such as cellular phones, cordless  
phones and personal digital assistants.  
‹ “2982/5205” compatible pinout  
‹ Guaranteed 150 mA output current  
‹ 2% output accuracy guaranteed over line, load and  
temperature  
‹ Very small external components - designed to work  
with ceramic capacitors  
‹ Low 26µVRMS output noise  
(1.5V option, CIN = COUT = 1µF, CBYP = 10nF)  
‹ Very low supply current  
‹ Thermal overload protection  
‹ Reverse battery protection  
The SC1453 has a bandgap reference bypass pin for  
very low noise operation - a 10nF (typ.) capacitor may be  
connected between this pin and ground. Other features  
include low powered shutdown, short circuit protection,  
thermal shutdown protection and reverse battery  
protection. The SC1453 comes in the tiny 5 lead SOT-23  
package and the ultra-low profile 5 lead TSOT-23.  
‹ Low power shutdown  
‹ Full industrial temperature range  
‹ Very low profile packaging available (1mm max. height)  
‹ Surface mount packaging (5 pin SOT-23 and  
TSOT-23)  
‹ Available in Lead-free packages, fully WEEE and RoHS  
compliant  
Applications  
‹ Battery Powered Systems  
‹ Cellular Telephones  
‹ Cordless Telephones  
‹ Personal Digital Assistants  
‹ Portable Instrumentation  
‹ Modems  
‹ PCMCIA cards  
Typical Application Circuit  
U1  
SC1453  
1
3
5
VIN  
VOUT  
IN  
OUT  
C1  
4
C3  
1uF  
EN  
BYP  
GND  
2
1uF  
C2  
10nF  
Revision: August 24, 2006  
1
www.semtech.com  
1234567...14

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