CS8147
CS8147
10V/5V
Low Dropout Dual Regulator
with ENABLE
Description
The CS8147 is a 10V/5V dual out-
put linear regulator. The 10V ±.5%
output sources 500mA and the 5V
±3% output sources 70mA. The
secondary output is inherently sta-
ble and does not require an external
capacitor.
The on board ENABLE function
controls the regulatorÕs two out-
puts. When ENABLE is high, the
regulator is placed in SLEEP mode.
Both outputs are disabled and the
regulator draws only 70µA of qui-
escent current.
The regulator is protected against
overvoltage conditions. Both out-
puts are protected against short
circuit and thermal runaway
conditions.
The CS8147 is packaged in a 5 lead
TO-220 with copper tab. The cop-
per tab can be connected to a heat
sink if necessary.
Features
s
Two Regulated Outputs
10V ± 5%; 500 mA
5V ± 3%; 70 mA
s
70µA SLEEP Mode Current
s
Inherently Stable
Secondary Output
(No Output Capacitor
Required)
s
Fault Protection
Overvoltage Shutdown
Reverse Battery
60V Peak Transient
-50V Reverse Transient
Short Circuit
Thermal Shutdown
s
CMOS Compatible
ENABLE
Input with Low
(I
OUT(max)
) Input Current.
Absolute Maximum Ratings
Input Voltage (V
IN
)
DC .............................................................................................-18V to 26V
Positive Peak Transient Voltage
(46V Load Dump @ V
IN
= 14V) .......................................................60V
Negative Peak Transient Voltage ......................................................-50V
ESD (Human Body Model) ...........................................................................2kV
ENABLE Input ...................................................................................-0.3 to 10V
Internal Power Dissipation ..................................................Internally Limited
Junction Temperature Range...................................................-40¡C to +150¡C
Storage Temperature Range ....................................................-65¡C to +150¡C
Lead Temperature Soldering
Wave Solder (through hole styles only)..........10 sec. max, 260¡C peak
Block Diagram
Primary Output
V
IN
Over Voltage
Shutdown
Anti-saturation
and
Current Limit
Package Options
5 Lead TO-220
Tab (Gnd)
V
OUT
1
+
-
+
ENABLE
Pre-Regulator
-
Secondary Output
Gnd
Thermal
Shutdown
Current Limit
Rev. 4/5/99
+
-
Bandgap
Reference
1
V
OUT
2
1 ENABLE
2 V
IN
3 Gnd
4 V
OUT1
(10V)
5 V
OUT2
(5V)
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
1
A
¨
Company
CHERRY [ CHERRY SEMICONDUCTOR CORPORATION ]
