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CS8147 Datasheet(PDF) 5 Page - Cherry Semiconductor Corporation

Part No. CS8147
Description  10V/5V Low Dropout Dual Regulator with ENABLE
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Maker  CHERRY [Cherry Semiconductor Corporation]
Homepage  http://www.cherrycorp.com/
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CS8147 Datasheet(HTML) 5 Page - Cherry Semiconductor Corporation

   
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5
Definition of Terms
Typical Circuit Waveform
Test & Applications Circuit
Dropout Voltage:
The input-output voltage differential at which
the circuit ceases to regulate against further reduction
in input voltage. Measured when the output voltage
has dropped 100mV from the nominal value obtained
at 14V input, dropout voltage is dependent upon load
current and junction temperature.
Current Limit:
Peak current that can be delivered to the output.
Input Voltage:
The DC voltage applied to the input terminals
with respect to ground.
Input Output Differential:
The voltage difference between the
unregulated input voltage and the regulated output
voltage for which the regulator will operate.
Line Regulation:
The change in output voltage for a change in
the input voltage. The measurement is made under
conditions of low dissipation or by using pulse tech-
niques such that the average chip temperature is not
significantly affected.
Load Regulation:
The change in output voltage for a change in
load current at constant chip temperature.
Long Term Stability:
Output voltage stability under accelerated
life-test conditions after 1000 hours with maximum
rated voltage and junction temperature.
Output Noise Voltage:
The rms AC voltage at the output, with
constant load and no input ripple, measured over a
specified frequency range.
Quiescent Current:
The part of the positive input current that
does not contribute to the positive load current. The
regulator ground lead current.
Ripple Rejection:
The ratio of the peak-to-peak input ripple
voltage to the peak-to-peak output ripple voltage.
Temperature Stability of VOUT: The percentage change in out-
put voltage for a thermal variation from room tempera-
ture to either temperature extreme.
VIN
ENABLE
VOUT1
System
Condition
60V
5V
5V
10V
0V
Turn
On
Load
Dump
Low VIN
Line Noise, Etc.
VOUT
Short
Circuit
Thermal
Shutdown
Turn
Off
5V
0V
14V
5V
2.0V
0.8V
14V
26V
31V
10V
10V
10V
10V
0V
VOUT2
0V
0V
0V
0V
5V
3V
5V
5V
0V
CS8147
C1*
0.1
mF
ENABLE
VIN
VOUT1
Gnd
VOUT2
C2**
10
mF
10V
5V
Control
DISPLAY
Tuner IC
* C1 is required if the regulator is located away from the power source filter.
**C2 is required for stability.


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