ip1522 Interpion semiconductor Inc., ip1522 Datasheet - Page 6

• Manufacturer Part Number: ip1522
• Description: Dual Output Voltage Series Regulator
• Manufacturer: Interpion semiconductor Inc.

August. 2002
APPLICATION SUMMARY
- ON / OFF
Pin#4
Vth
When you want to control output of the IP1522, use pin #4 as follows
(Rev.6)
on/off function
DUAL OUTPUT VOLTAGE SERIES REGULATOR
Q1
WWW.INTERPIONSEMI.COM
Main
bias
As shown in figure
Pin#4 is positive input of the comparator,
and the other Input is threshold voltage.
If the voltage of the pin#4 rises above threshold voltage,
then TR Q1 will be saturated and the main bias current
will be shut down.
IP1522
Pin#4
HIGH
LOW
IP1522
off
on
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