IL1501, IL1501-33, IL1501-50, IL1501-12
PWM BUCK DC/DC CONVERTER
FAMILY
Description
IL1501, IL1501-33, IL1501-50, IL1501-12 - are monolithic ICs of a step-down DC-DC con-
verters. The principle of operation of ICs is based on control of build-in power NPN tran-
sistor, quantity of energy transferred to load is regulated by means of pulse-width modula-
tion. So ouput voltage practically do not depends from load. ICs are purposed for applica-
tion inside power supply units of consumer & industrial devices.
Family consist of:
- IL1501 - PWM voltage regulator with adjustable output voltage;
- IL1501-33 - PWM voltage regulator with fixed output voltage 3,3 V;
- IL1501-50 - PWM voltage regulator with fixed output voltage 5,0 V;
- IL1501-12 - PWM voltage regulator with fixed output voltage 12,0 V;
Features:
-Output voltage: 3.3V, 5V, 12V and adjust-
able output version;
- Adjustable version output voltage range,
1.23V to 37V+4%;
- Oscilator with build-in capacity for 150Khz
switching frequency;
- PWM contro circuit of output voltage;
- Overheating and current-limit protection ;
- Switch on/off control circuit;
TO220AB/5 package
- Up to 40V operating voltage
- Output load current: 3A
- Standby mode with low power consump-
tion
- Built-in switching transistor on chip
IC realized in 5-pin plastic package
TO220AB/5
Pinning diagram
05 SD
04
03
02
FB
GND
Output
01 VIN
Ver.00/13.10.2006
IL1501XX-TSe.doc
423424
1
INTEGRAL [ INTEGRAL CORP. ]
