CS8147 Cherry Semiconductor Corporation, CS8147 Datasheet - Page 5

• Manufacturer Part Number: CS8147
• Description: 10V/5V Low Dropout Dual Regulator with ENABLE
• Manufacturer: Cherry Semiconductor Corporation

Dropout Voltage: The input-output voltage differential at which
Current Limit: Peak current that can be delivered to the output.
Input Voltage: The DC voltage applied to the input terminals
Input Output Differential: The voltage difference between the
Line Regulation: The change in output voltage for a change in
* C
**C
Condition
ENABLE
1
2
System
is required if the regulator is located away from the power source filter.
is required for stability.
V
V
OUT1
OUT2
V
IN
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.
with respect to ground.
unregulated input voltage and the regulated output
voltage for which the regulator will operate.
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.
2.0V
0.8V
14V
0V
0V
Control
Turn
On
10V
60V
5V
Dump
Load
31V
C
0.1 mF
1
*
10V
Low V
5V
Test & Applications Circuit
Typical Circuit Waveform
Definition of Terms
IN
ENABLE
3V
5V
5V
Line Noise, Etc.
5
26V
CS8147
Load Regulation: The change in output voltage for a change in
Long Term Stability: Output voltage stability under accelerated
Output Noise Voltage: The rms AC voltage at the output, with
Quiescent Current: The part of the positive input current that
Ripple Rejection: The ratio of the peak-to-peak input ripple
Temperature Stability of V
V
Gnd
IN
10V
5V
load current at constant chip temperature.
life-test conditions after 1000 hours with maximum
rated voltage and junction temperature.
constant load and no input ripple, measured over a
specified frequency range.
does not contribute to the positive load current. The
regulator ground lead current.
voltage to the peak-to-peak output ripple voltage.
put voltage for a thermal variation from room tempera-
ture to either temperature extreme.
V
Circuit
V
Short
V
OUT
OUT
OUT
0V
2
1
0V
5V
OUT
C
10mF
10V
2
: The percentage change in out-
**
10V
Shutdown
5V
Thermal
14V
DISPLAY
0V
Tuner IC
0V
10V
5V
Turn
Off
0V
0V