IP35063
IP33063
IP34063
DC–DC CONVERTER
CONTROL CIRCUIT
TOP VIEW
SWITCH
DRIVER
1
2
3
4
8
7
6
5
COLLECTOR
COLLECTOR
SWITCH
EMITTER
Ipk SENSE
FEATURES
• Operation from 2.5 to 40V input
TIMING
CAPACITOR
VC C
• Low Standby Current
COMPARATOR
INVERTING
INPUT
GND
• Current Limiting
• Output switch current of 1.5A
• Output voltage adjustable from 1.25 to 40V
• Operating frequency from 100Hz to 100kHz
J Package – 8 Pin Ceramic DIP
N Package – 8 Pin Plastic DIP
D-8 Package – 8 Pin Plastic (150) SOIC
• Direct replacement for MC34063/MC34063A
series
Order Information
Part
Number
J–Pack
8 Pin
N–Pack
8 Pin
D–8
8 Pin
Temp.
Range
Note:
To order, add the package identifier to the part
number.
IP35063
IP33063
IP34063
✔
✔
✔
-55 to +125°C
-40 to +85°C
0 to +70°C
✔
✔
✔
✔
eg.
IP35063D–8
ABSOLUTE MAXIMUM RATINGS
Power Supply Voltage
+40V
–0.3V to +40V
40V
Comparator Input Voltage Range
Switch Collector Voltage
Switch Emitter Voltage
40V
Switch Collector to Emitter Voltage
Driver Collector Voltage
Switch Current
40V
40V
1.5A
Power Dissipation @ T
= 25°C
Ceramic Packages
Plastic Packages
1.25W
1W
amb
Derate above 25°C
10mW/°C
Operating Junction Temperature
Ceramic Packages
Plastic Packages
150°C
125°C
Operating Ambient Temperature Range See Table Above
Storage Temperature Range
See Table Above
–65 to 150°C
Prelim. 2/95
Semelab plc. Telephone (01455) 556565. Telex: 341927. Fax (01455) 552612.