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KA7633 View Datasheet(PDF) - Fairchild Semiconductor

Part Name
Description
View to exact match
KA7633
Fairchild
Fairchild Semiconductor Fairchild
KA7633 Datasheet PDF : 8 Pages
1 2 3 4 5 6 7 8
KA7632/KA7633
Fixed Multi-output Regulator
www.fairchildsemi.com
Features
• Output Currents up to 0.5A (output1 & 2)
• Output Current up to 1A with External Transistor
(output3)
• Fixed Precision Output 1 voltage 3.3V ± 2%
• Fixed Precision Output 2 voltage 8V ± 2% (KA7632)
• Fixed Precision Output 2 voltage 9V ± 2% (KA7633)
• Control Signal Generator for Output 3 voltage (5.1V ± 2%)
• Reset Facility for Output Voltage1
• Output 2,3 with Disable by TTL Input
• Current Limit Protection at Each Output
• Thermal Shut Down
Description
The KA7632/KA7633 is a multi-output positive voltage
regulator designed to provide fixed precision output voltages
of 3.3V, 8V (KA7632) / 9V (KA7633) at current up to 0.5A
and 5.1V at current up to 1A with external PNP transistor.
An internal reset circuit generates a reset pulse when the
output 1 decrease below the regulated value. Output2 & 3
can be disabled by TTL input. Protection features include
over voltage protection, short circuit protection and thermal
shutdown.
10-SIP H/S
Internal Block Diagram
DEL.CAP
3
Cd
100nF
6
RESET
Vsys
10K
A614 "Y"
7
Control
10
Output 3
Vin1
1
10uA
-
+
SW
Bandgap
Reference
-
+
50mV
Vin2
2
2.5V
OVP
+
-
SCP
Vin1
9 Output 1
Thermal
Shut Down
OVP Vin2
-
+
SCP
+
-
Output 2,3
+
-
SCP
1.4V
8 Output 2
5
GND
4
Disable
©2001 Fairchild Semiconductor Corporation
Rev. 1.0.1
 

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