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參數資料
| 型號： | SC1540A |
| 廠商： | Semtech Corporation |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | 300mA AND 500mA LOW DROPOUT VOLTAGE REGULATORS WITH ENABLE |
| 中文描述： | 300mA和500mA的低壓差電壓調節器，具備啟動 |
| 文件頁數： | 1/4頁 |
| 文件大小： | 64K |
| 代理商： | SC1540A |
SC1540
SC1540A
2000 SEMTECH CORP.
300mA AND 500mA LOW DROPOUT
VOLTAGE REGULATORS WITH ENABLE
PRELIMINARY - May 1, 2000
652 MITCHELL ROAD NEWBURY PARK CA 91320
1
Notes:
(1) 2 inch square of 1/16” FR-4, double sided, 1 oz.
minimum copper weight.
ABSOLUTE MAXIMUM RATINGS
DESCRIPTION
The SC1540 and SC1540A are high performance low
dropout positive voltage regulators designed for use in
applications where power management is critical, such
as battery powered systems. Additionally, the
SC1540(A) provides excellent regulation over varia-
tions in line, load and temperature. Outstanding fea-
tures 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. With three voltage options
available, the SC1540(A) comes in the popular SO-8
surface mount package.
APPLICATIONS
=
Active SCSI termination
=
Low voltage microcontrollers
=
Switching power supply post-regulator
Parameter
Symbol
Maximum
Units
Maximum Input Pin
Voltage
VIN, EN
7
V
Power Dissipation
P
D
Internally
Limited
W
Thermal Resistance
Junction to Case
SO-8
θ
JC
47
°C/W
Thermal Resistance
Junction to Ambient
SO-8
(1)
θ
JA
65
°C/W
Operating Junction
Temperature Range
T
J
0 to 125
°C
Storage Temperature
Range
T
STG
-65 to 150
°C
Lead Temperature
(Soldering) 10 Sec
T
LEAD
260
°C
ORDERING INFORMATION
DEVICE
(1)(2)
Notes:
(1) Where X.X denotes voltage options. Available voltages
are: 1.8V, 2.5V and 3.3V. Contact factory for additional
voltage options.
(2) Only available in tape and reel packaging (suffix ‘.TR’)
e.g. SC1540CS-X.X-.TR.
OUTPUT CURRENT
PACKAGE
SC1540CS-X.X
300mA
SO-8
SC1540ACS-X.X
500mA
SO-8
TEL:805-498-2111 FAX:805-498-3804 WEB:http://www.semtech.com
FEATURES
=
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 package
BLOCK DIAGRAM
PIN CONFIGURATIONS
SO-8
Top View
相關PDF資料 |
PDF描述 |
|---|---|
| SC1540CS-1.8 | 300mA AND 500mA LOW DROPOUT VOLTAGE REGULATORS WITH ENABLE |
| SC1540CS-2.5 | 300mA AND 500mA LOW DROPOUT VOLTAGE REGULATORS WITH ENABLE |
| SC1540CS-3.3 | 300mA AND 500mA LOW DROPOUT VOLTAGE REGULATORS WITH ENABLE |
| SC1541 | 1.0A Low Dropout Voltage Regulator with Enable |
| SC1541CM-X.X.TR | 1.0A Low Dropout Voltage Regulator with Enable |
相關代理商/技術參數 |
參數描述 |
|---|---|
| SC1540ACS-1.8 | 制造商:SEMTECH 制造商全稱:Semtech Corporation 功能描述:300mA AND 500mA LOW DROPOUT VOLTAGE REGULATORS WITH ENABLE |
| SC1540ACS-2.5 | 制造商:SEMTECH 制造商全稱:Semtech Corporation 功能描述:300mA AND 500mA LOW DROPOUT VOLTAGE REGULATORS WITH ENABLE |
| SC1540ACS-3.3 | 制造商:SEMTECH 制造商全稱:Semtech Corporation 功能描述:300mA AND 500mA LOW DROPOUT VOLTAGE REGULATORS WITH ENABLE |
| SC1540CS-1.8 | 制造商:SEMTECH 制造商全稱:Semtech Corporation 功能描述:300mA AND 500mA LOW DROPOUT VOLTAGE REGULATORS WITH ENABLE |
| SC1540CS-2.5 | 制造商:SEMTECH 制造商全稱:Semtech Corporation 功能描述:300mA AND 500mA LOW DROPOUT VOLTAGE REGULATORS WITH ENABLE |
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