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PDF CS8281 Data sheet ( Hoja de datos )
| Número de pieza | CS8281 | |
| Descripción | 5V/250mA/ 5V/100mA Micropower Low Dropout Regulator with ENABLE | |
| Fabricantes | Cherry Semiconductor Corporation | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de CS8281 (archivo pdf) en la parte inferior de esta página. Total 6 Páginas | ||
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CS8281
5V/250mA, 5V/100mA Micropower
Low Dropout Regulator with ENABLE
Description
Features
The CS8281 is a precision, dual 5V
micropower linear voltage regula-
tor. The switched primary output
(VOUT1) supplies up to 250mA
while the secondary (VOUT2) is
capable of supplying 100mA. Both
outputs have a maximum dropout
voltage of 600mV and low reverse
current. Quiescent current drain is
typically 150µA when supplying
100µA from each output.
The ENABLE input provides logic
level control of the primary output.
With the primary output disabled,
quiescent current drain is typically
100µA when supplying 100µA from
the secondary output.
The CS8281 is extremely robust
with protection provided for
reverse battery, short circuit, over-
voltage, and overtemperature on
both outputs.
The CS8281 is available in a 5-lead
D2PAK.
Absolute Maximum Ratings
Input Voltage.....................................................................................-15V to 74V
Power Dissipation .................................................................Internally Limited
Operating Temperature Range................................................-40¡C to +125¡C
Maximum Junction Temperature ...........................................-40¡C to +150¡C
Storage Temperature Range ....................................................-55¡C to +150¡C
Electrostatic Discharge (Human Body Model) ..........................................4kV
Lead Temperature Soldering
Reflow (SMD styles only)................16 sec. max above 183¡C, 230¡C peak
s 5V, 250mA Primary Output
s 5V, 100mA Secondary
Output
s 3% Tolerance, Both
Outputs
s ON/OFF Control for
Primary Output
s Low Quiescent Current
Drain (100µA VOUT2)
s Low Reverse Current
s Protection Features
Reverse Battery (-15V)
74V Load Dump
Short Circuit
Overtemperature
Overvoltage (34V)
Package Options
Block Diagram
VIN
Primary Output
VOUT1
5 Lead D2PAK
Tab (Gnd)
ENABLE
Pwr Gnd
Gnd
Bandgap
Reference
Thermal
Shutdown
+
-
Over
Voltage
Shutdown
+
-
Current
Limit
Secondary Output
Current
Limit
VOUT1Sense
VOUT2
VOUT2Sense
1. VIN
1
2. VOUT1
3. Gnd
4. VOUT2
5. ENABLE
Consult factory for 8L and 16L SO, 8L and
16L PDIP, 7L D2PAK and 5L TO-220.
Rev. 9/16/97
Cherry Semiconductor Corporation
2000 South County Trail, East Greenwich, RI 02818
Tel: (401)885-3600 Fax: (401)885-5786
Email: [email protected]
Web Site: www.cherry-semi.com
1 A ¨ Company
1 page  
Test & Application Circuit
VBATT
0.1mF
Load
22mF
ESR<8W
VIN VOUT2
C1
CS8281
VOUT1
C3
ENABLE
Gnd
C2 22mF
VCC
ESR<8W
mP
I/O
Gnd
* C1 required if regulator is located far from power supply filter.
** C2 and C3 required for stability. Capacitor must operate at minimum temperature expected during system operations.
5
5 Page | ||
| Páginas | Total 6 Páginas | |
| PDF Descargar | [ Datasheet CS8281.PDF ] | |
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