CP34063N datasheet(7/10 Pages) CERAMATE

Part #	CP34063N

Description	1.5A,Step-Up/Down/Inverting Switching Regulators

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Manufacturer	CERAMATE [Ceramate Technical]

Direct Link	http://www.ceramate.com.tw

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CP34063

1.5A,Step-Up/Down/Inverting Switching Regulators

* All specs and applications shown above subject to change without prior notice.

1F-5 NO.66 SEC.2 NAN-KAN RD ., LUCHU ,

TAOYUAN, TAIWAN

Email: server@ceramate.com.tw

1.25 V

Ref

Reg

Vout

5.0 V/500 mA

1.0 µH

Vout

+

100

Optional Filter

8

7

Rsc

0.33

6

Vin

25 V

100

+

R1 1.2 k

R2

3.6 k

SQ

R

Q2

Q1

Ipk

Osc

CT

VCC

+

-

Comp.

1

2

3

4

CT

470

pF

470

CO

+

5

L

1N5819

220 µH

Test

Conditions

Results

Line Regulation

Vin = 15 V to 25 V, IO = 500 mA

12 mV =

±0.12%

Load Regulation

Vin = 25 V, IO = 50 mA to 500 mA

3.0 mV =

±0.03%

Output Ripple

Vin = 25 V, IO = 500 mA

120 mVpp

Short Circuit Current

Vin = 25 V, RL = 0.1 Ω

1.1 A

Efficiency

Vin = 25 V, IO = 500 mA

83.7%

Output Ripple With Optional Filter

Vin = 25 V, IO = 500 mA

40 mVpp

Figure 10. Step–Down Converter

8

7

6

Rsc

Vin

1

2

Vout

8

7

6

Rsc

Vin

1

2

V

Figure 11. External Current Boost Connections for IC Peak Greater than 1.5 A

11a. External NPN Switch

11b. External PNP Saturated Switch

Tel:886-3-3214525

Http: www.ceramate.com.tw

Fax:886-3-3521052

Page

7 of 10

Rev 1.

1 Jul.18,2003

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