Ceramate CP9743 2-channel switching regulator controller Datasheet

CP9743
2-Channel Switching Regulator Controller
The CP9743 is a 2-channel switching regulator controller that uses a pulse width modulation (PWM) system. Both
channels can be used for DC / DC converter operations including step up, step down, and inverting. Because the IC is
compactly packaged, it is best suited for use as a power supply in portable equipment.
Applications
DC / DC converters in VCRs, notebook computers, etc.
Features
1) Built-in reference voltage current (±1%).
2) Timer latch, short-circuit protection circuit is built in.
3) Circuit to prevent malfunction during low input voltage is built in.
4) Built-in reference voltage (2.505V) output pin.
5) Rest period is adjustable over the whole range of
duty ratio.
Absolute maximum ratings (Ta = 25C)
Recommended operating conditions (Ta = 25)
* 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: [email protected]
Tel:886-3-3214525
Http: www.ceramate.com.tw
Page 1 of 5
Rev 1.1 Apr.19, 2004
Fax:886-3-3521052
CP9743
2-Channel Switching Regulator Controller
* 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: [email protected]
Tel:886-3-3214525
Http: www.ceramate.com.tw
Page 2 of 5
Rev 1.1 Apr.19, 2004
Fax:886-3-3521052
CP9743
2-Channel Switching Regulator Controller
* 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: [email protected]
Tel:886-3-3214525
Http: www.ceramate.com.tw
Page 3 of 5
Rev 1.1 Apr.19, 2004
Fax:886-3-3521052
CP9743
2-Channel Switching Regulator Controller
* 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: [email protected]
Tel:886-3-3214525
Http: www.ceramate.com.tw
Page 4 of 5
Rev 1.1 Apr.19, 2004
Fax:886-3-3521052
CP9743
2-Channel Switching Regulator Controller
•External dimensions (Units: mm)
CP9743N
CP9743
10.0 ± 0.2
19.4 ± 0.3
9
0.3 ± 0.1
0.5 ± 0.1
1.5 ± 0.1
7.62
2.54
9
1
8
1.27
0.4 ± 0.1
0.15 ± 0.1
6.2 ± 0.3
8
16
4.4 ± 0.2
1
0.11
0.51Min.
3.2 ± 0.2 4.25 ± 0.3
6.5 ± 0.3
16
0.3Min.
0° ~ 15°
0.15
DIP16
SOP16
* 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: [email protected]
Tel:886-3-3214525
Http: www.ceramate.com.tw
Page 5 of 5
Rev 1.1 Apr,19 2004
Fax:886-3-3521052
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