CS8221
CS8221
Micropower 5V, 100mA
Low Dropout Linear Regulator
Description
The CS8221 is a precision 5V,
100mA micropower voltage regula-
tor with very low quiescent current
(60µA typical at 100µA load). The
5V output is accurate within ±2%
and supplies 100mA of load current
with a maximum dropout voltage
of only 600mV.
The regulator is protected against
reverse battery, short circuit, over
voltage, and over temperature con-
ditions. The device can withstand
74V load dump transients making it
suitable for use in automotive envi-
ronments.
Features
s
Low Quiescent Current
(60µA @ 100µA load)
s
5V, ±2% Output
s
100mA Output Current
Capability
s
Fault Protection
+74V Peak Transient
Voltage
-15V Reverse Voltage
Short Circuit
Thermal Shutdown
Low Reverse Current
(Output to Input)
Absolute Maximum Ratings
Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Internally Limited
Transient Peak Voltage (60V Load Dump) . . . . . . . . . . . . . . . . . . . .-15V, 74V
Output Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Internally Limited
ESD Susceptibility (Human Body Model) . . . . . . . . . . . . . . . . . . . . . . . . . .2kV
Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .-40¡C to 150¡C
Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .-55¡C to 150¡C
Lead Temperature Soldering
Reflow (SMD styles only) . . . . . .60 sec. max above 183¡C, 230¡C peak
Package Options
Block Diagram
V
OUT
V
IN
Current Source
(Circuit Bias)
Over
Voltage
Shutdown
8L SO Narrow
(Internally Fused Leads)
V
IN
V
OUT
1
Gnd
Gnd
Gnd
Gnd
D
2
PAK
NC
Sense
Current Limit
Sense
Sense*
3L D
2
PAK
Tab (Gnd)
+
Thermal
Shutdown
-
Error
Amplifier
Bandgap
Reference
1
Gnd
1. V
IN
2. Gnd
3. V
OUT
* 8 Lead SO Narrow
Consult factory for TO-92.
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
Rev. 12/28/98
1
A
¨
Company
CHERRY [ CHERRY SEMICONDUCTOR CORPORATION ]
