Recherchez avec le numéro de pièce ainsi que le fabricant ou la description
The SC4505 is a high-frequency PWM current-mode stepup switching regulator with an integrated 2A power transistor. Its high switching frequency (1MHz) allows the use of tiny surface-mount external passive components. The internal switch is rated at 36V which makes the converter ideal for multiple LED series operation with optimal current matching. Two progra.
Two independent current sources for dual LED strands with optimal current/light matching. Backlight up to 75mA, Flash up to 125mA Wide input range from 2.6V to 12V Adaptive output voltage up to 28V with OVP protection against open circuit conditions Low shutdown current (<1µA ) Internal Flash/Torch mode with flash timeout to protect LEDs 1MHz Fixed Frequency Current-Mode Control Internal 2A current limit for driving large numbers of LEDs Supports PWM Dimming from 50Hz to 50kHz Internal undervoltage lockout Small, low profile, thermally enhanced 16-MLPQ package is fully WEEE.
| No. | Partie # | Fabricant | Description | Fiche Technique |
|---|---|---|---|---|
| 1 | SC450 |
Semtech Corporation |
Dual Phase Power Supply Controller |
|
| 2 | SC4501 |
Semtech Corporation |
2MHz Step-Up Switching Regulator |
|
| 3 | SC4502 |
Semtech Corporation |
2MHz Step-Up Switching Regulator |
|
| 4 | SC4502H |
Semtech Corporation |
2MHz Step-Up Switching Regulator |
|
| 5 | SC4503 |
Semtech Corporation |
1.3MHz Step-Up Switching Regulator |
|
| 6 | SC4508 |
Semtech Corporation |
Buck or Buck-Boost Current Mode Controller |
|
| 7 | SC4508A |
Semtech Corporation |
Buck or Buck-Boost Current Mode Controller |
|
| 8 | SC4509 |
Semtech Corporation |
Highly Integrated Step-Up Converter |
|
| 9 | SC450ITSTRT |
Semtech Corporation |
Dual Phase Power Supply Controller |
|
| 10 | SC451 |
Semtech |
Single Phase Power Supply Controller |
|
| 11 | SC4510 |
Semtech Corporation |
High Performance Synchronous Buck Controller |
|
| 12 | SC4517A |
Semtech Corporation |
1.5A Step-Down Switching Regulator |
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