MC33060A View Datasheet(PDF) - ON Semiconductor

Part Name

Description

Manufacturer

MC33060A

Fixed Frequency, PWM, Voltage Mode Single Ended Controllers

ON Semiconductor 

Vin = 8.0V to 26V

4.7k

+

50/35V

MC34060A, MC33060A

22k

0.05

33k

2.7M

3.9k

10

1

VCC

+

2

-

3

Comp

14

+

MC34060A

9

C

13

-

12

Vref

DT CT

45

4.7k

0.001

390

8

E

7

GND

RT

6

47k

150mH @ 4.0A

MR850

20mH @ 1.0A

* Vout

28V/

0.5A

300

0.1

470

Tip 111

+

470/

35V

+*

470/

35V

Test

Conditions

Line Regulation

Vin = 8.0 V to 26 V, IO = 0.5 A

Load Regulation

Vin = 12 V, IO = 1.0 mA to 0.5 A

Output Ripple

Vin = 12 V, IO = 0.5 A

Efficiency

Vin = 12 V, IO = 0.5 A

*Optional circuit to minimize output ripple

Results

40 mV 0.14%

5.0 mV 0.18%

24 mV p−p P.A.R.D.

75%

Figure 20. Step−Up Converter

http://onsemi.com

11

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