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參數資料
| 型號： | CS8120 |
| 廠商： | ZF Electronics Corporation |
| 英文描述： | 5V, 300mA Linear Regulator with and ENABLE RESET |
| 中文描述： | 5V的，300mA的線性穩壓器和啟用與復位 |
| 文件頁數： | 1/8頁 |
| 文件大小： | 198K |
| 代理商： | CS8120 |
1
Features
Over
Voltage
Shutdown
RESET
Comparator
Error
Amplifier
+
-
TO V
OUT
+
+
-
VREF
ENABLE
Comparator
Bandgap
Supply
Output
Current
Limit
Bandgap
Reference
Thermal
Shutdown
-
V
IN
ENABLE
RESET
V
OUT
Gnd
I
5V ± 4% Output Voltage
300mA
I
Low Dropout Voltage
(1V @ 150mA)
I
Low Quiescent Current
(2.5mA @ I
OUT
= 150mA)
μP Compatible Control
Functions
RESET
I
I
Low Current Sleep Mode
I
Q
=250μA
Fault Protection
Thermal Shutdown
Short Circuit
60V Load Dump
I
ENABLE
Package Options
5 Lead TO-220
Tab (Gnd)
14 Lead SOIC
Narrow
8 Lead PDIP
C
5V 300mA Linear Regulator with
and ENABLE
RESET
Description
1
CS8120
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 CS8120s two logic control func-
tions make this regulator well suited to
applications requiring microprocessor-
based control at the board or module
level.
controls the output
stage. A high voltage (>2.9V) on the
lead turns off the regula-
tors pass transistor and sends the IC
into Sleep mode where it draws only
250μA. The
RESET
function sends a
signal when the IC is power-
ing up or whenever the output voltage
moves out of regulation. The
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.
RESET
RESET
ENABLE
ENABLE
Block Diagram *
1
V
IN
SENSE
NC
V
OUT
Gnd
NC
NC
NC
NC
NC
NC
NC
RESET
ENABLE
1
V
IN
NC
ENABLE
Gnd
RESET
V
OUT
SENSE
NC
1
2
3
4
5
V
IN
ENABLE
Gnd
RESET
V
OUT
* TO-220 Block Diagram
1
5 Lead D
2
PAK
Rev. 2/3/98
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
A
Company
¨
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