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CS8120YDR14 参数 Datasheet PDF下载

CS8120YDR14图片预览
型号: CS8120YDR14
PDF下载: 下载PDF文件 查看货源
内容描述: 5V , 300毫安线性稳压器,并启用复位 [5V, 300mA Linear Regulator with and ENABLE RESET]
分类和应用: 稳压器
文件页数/大小: 8 页 / 202 K
品牌: CHERRY [ CHERRY SEMICONDUCTOR CORPORATION ]
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CS8120
CS8120
5V, 300mA Linear Regulator with
RESET and ENABLE
Description
The CS8120 is a 5V, 300mA precision
linear regulator with two microproces-
sor compatible control functions and
protection circuitry included on chip.
The composite NPN-PNP output pass
transistor assures a lower dropout volt-
age (1V @ 200mA) without requiring
excessive supply current (2.5mA).
The CS8120Õs two logic control func-
tions make this regulator well suited to
applications requiring microprocessor-
based control at the board or module
level.
ENABLE
controls the output
stage. A high voltage (>2.9V) on the
ENABLE
lead turns off the regula-
torÕs pass transistor and sends the IC
into Sleep mode where it draws only
250µA. The
RESET
function sends a
Features
s
5V ± 4% Output Voltage
300mA
s
Low Dropout Voltage
(1V @ 150mA)
s
Low Quiescent Current
(2.5mA @ I
OUT
= 150mA)
s
µP Compatible Control
Functions
RESET
ENABLE
RESET
signal when the IC is power-
ing up or whenever the output voltage
moves out of regulation. The
RESET
signal is valid down to V
OUT
= 1V.
The CS8120 design optimizes supply
rejection by switching the internal
bandgap reference from the supply
input to the regulator output as soon as
the nominal output voltage is achieved.
Additional on chip filtering enhances
rejection of high frequency transients
on all external leads.
The CS8120 is fault protected against
short circuit, over voltage and thermal
runaway conditions.
s
Low Current Sleep Mode
I
Q
=250µA
s
Fault Protection
Thermal Shutdown
Short Circuit
60V Load Dump
Block Diagram *
Package Options
5 Lead TO-220
Tab (Gnd)
V
OUT
V
IN
Over
Voltage
Shutdown
ENABLE
Comparator
Bandgap
Supply
-
+
Error
Amplifier
14 Lead SOIC
Narrow
V
IN
NC
NC
NC
1
V
OUT
Gnd
SENSE
NC
RESET
NC
NC
VREF
RESET
* TO-220 Block Diagram
Rev. 2/3/98
+
-
ENABLE
Output
Current
Limit
ENABLE
NC
NC
1
Thermal
Shutdown
Bandgap
Reference
RESET
Comparator
+
-
Gnd
8 Lead PDIP
V
OUT
V
IN
NC
ENABLE
1
Gnd
SENSE
RESET
NC
TO V
OUT
5 Lead D
2
PAK
1
2
3
4
5
1
V
IN
ENABLE
Gnd
RESET
V
OUT
Cherry Semiconductor Corporation
2000 South County Trail, East Greenwich, RI 02818
Tel: (401)885-3600 Fax: (401)885-5786
Email: info@cherry-semi.com
Web Site: www.cherry-semi.com
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Company