ECB and LCD Display Bias Supply with Accurate
Output Voltage and Temperature Compensation
Typical Operating Characteristics (continued)
(Circuit of Figure 2, TA = +25°C, unless otherwise noted.)
VCTLIN
5V/div
VREF
1V/div
VTC
1V/div
VOUT
10V/div
DELAY TO SHUTDOWN
IL
20mA/div
OUTPUT
RIPPLE
10mV/div
5ms/div
VIN = 5V
IO = 0.5mA
VLX
5V/div
SWITCHING WAVEFORMS
HEAVY LOAD
2µs/div
IL
20mA/div
OUTPUT
RIPPLE
10mV/div
VLX
5V/div
SWITCHING WAVEFORMS
MEDIUM LOAD
2µs/div
VOUT
20mV/div
LOAD-TRANSIENT RESPONSE
16.404
16.400
IOUT
250µA/div
1ms/div
500µA
20µA
VOUT
20mV/div
VIN
1V/div
LINE-TRANSIENT RESPONSE
CTLIN = IN
IOUT = 0.5mA
5V
4V
2ms/div
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