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The SC4502/SC4502H is a high-frequency current-mode step-up switching regulator with an integrated 1.4A power transistor. Its high switching frequency (programmable up to 2MHz) allows the use of tiny surface-mount external passive components. Programmable soft-start eliminates high inrush current during start-up. The internal switch is rated at 32V (40V for .
Low saturation voltage switch: 210mV (250mV for the SC4502H) Constant switching frequency current-mode control Programmable switching frequency up to 2MHz Soft-Start function Input voltage ranges from 1.4V to 16V Output voltage up to 32V (40V for the SC4502H) Low shutdown current Adjustable undervoltage lockout threshold Small low-profile thermally enhanced lead free package. This product is fully WEEE and RoHS compliant. Applications Flat screen LCD bias supplies TFT bias supplies XDSL power supplies Medical equipment Digital video cameras Portables devices Wh.
| No. | Partie # | Fabricant | Description | Fiche Technique |
|---|---|---|---|---|
| 1 | SC450 |
Semtech Corporation |
Dual Phase Power Supply Controller |
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| 2 | SC4501 |
Semtech Corporation |
2MHz Step-Up Switching Regulator |
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| 3 | SC4502H |
Semtech Corporation |
2MHz Step-Up Switching Regulator |
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| 4 | SC4503 |
Semtech Corporation |
1.3MHz Step-Up Switching Regulator |
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| 5 | SC4505 |
Semtech Corporation |
High Efficiency Boost Converter |
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| 6 | SC4508 |
Semtech Corporation |
Buck or Buck-Boost Current Mode Controller |
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| 7 | SC4508A |
Semtech Corporation |
Buck or Buck-Boost Current Mode Controller |
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| 8 | SC4509 |
Semtech Corporation |
Highly Integrated Step-Up Converter |
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| 9 | SC450ITSTRT |
Semtech Corporation |
Dual Phase Power Supply Controller |
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| 10 | SC451 |
Semtech |
Single Phase Power Supply Controller |
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| 11 | SC4510 |
Semtech Corporation |
High Performance Synchronous Buck Controller |
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| 12 | SC4517A |
Semtech Corporation |
1.5A Step-Down Switching Regulator |
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