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參數資料
| 型號： | SC1541CS-X.X.TRT |
| 廠商： | Semtech Corporation |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | 1.0A Low Dropout Voltage Regulator with Enable |
| 中文描述： | 1.0安培低壓差穩壓器與啟用 |
| 文件頁數： | 1/6頁 |
| 文件大小： | 177K |
| 代理商： | SC1541CS-X.X.TRT |
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www.semtech.com
SC1541
1.0A Low Dropout Voltage
Regulator with Enable
POWER MANAGEMENT
Description
Revision: February 11, 2004
The SC1541 is a high performance low dropout positive
voltage regulator designed for use in applications where
power management is critical, such as battery powered
systems.
Additionally, the SC1541 provides excellent regulation
over variations in line, load and temperature.
Outstanding features include low dropout performance
at rated current, fast transient response, internal
current limiting and thermal shutdown protection of the
output device. A very low quiescent current of 10μA in
shutdown mode reduces power dissipation.
The SC1541 is available with three different voltage
options as standard and two package options, SO-8 and
5-lead TO-263.
Low voltage microcontrollers
Switching power supply post-regulation
Instantly available circuits
Motherboards
Battery operated equipment
Low dropout performance, 1.3V max
Full current rating over line and temperature
Fast transient response
+2% total output regulation over line, load
and temperature
10μA max. quiescent current in shutdown
Three fixed output voltages
Line regulation 0.2% max.
Load regulation 0.4% max.
SO-8 and TO-263 packages
V
V
ENABLE SIGNAL
U1
SC1541
IN
ENGND
OUT
C2
10uF min.
Tantalum
C1
10uF
Tantalum
IN
OUT
Notes:
(1) Input and output capacitors should be located close to the device.
(2) Connect all pins to PCB (SO-8 package) for optimal thermal characteristics.
(3) Increasing the output capacitor value will improve the overall transient response.
(4) The device is enabled when V
= V
, and shut down when EN is pulled to ground. EN should not be taken higher
than V
IN
. A CMOS signal referenced to V
IN
would be ideal for switching the SC1541 on and off.
Features
Applications
Typical Application Circuit
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| SC1543 | 400mA/200mA Dual 3.3V Smart Power Switch |
| SC1543IMSTR | 400mA/200mA Dual 3.3V Smart Power Switch |
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| SC1544EVB | ACPI Controller for Advanced Motherboards |
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相關代理商/技術參數 |
參數描述 |
|---|---|
| SC1543 | 制造商:SEMTECH 制造商全稱:Semtech Corporation 功能描述:400mA/200mA Dual 3.3V Smart Power Switch |
| SC1543IMSTR | 制造商:SEMTECH 制造商全稱:Semtech Corporation 功能描述:400mA/200mA Dual 3.3V Smart Power Switch |
| SC1544 | 制造商:SEMTECH 制造商全稱:Semtech Corporation 功能描述:ACPI Controller for Advanced Motherboards |
| SC1544EVB | 制造商:SEMTECH 制造商全稱:Semtech Corporation 功能描述:ACPI Controller for Advanced Motherboards |
| SC1544TS-2.5TR | 制造商:Semtech Corporation 功能描述:DC DC Cntrlr Dual-OUT 5V Input 24-Pin TSSOP T/R |
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