| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
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32,300 pcs
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32300 pcs | On Request | 1 | On Request | On Request | 2020+ | On Request | On Request |
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The MIC3291-25YML-TR from Microchip Technology is a PWM switching boost regulator designed for constant current white LED (WLED) driver applications. It integrates a Schottky diode, enabling an efficient DC/DC solution with minimal external components. The device supports single-wire digital control for 16-step linear brightness dimming and startup current level selection.
Key electrical specifications include a wide input voltage range of 2.5V to 6.5V, a high switching frequency of 1.2MHz for reduced component size, and over 500mA switch current. It offers a low feedback voltage of 250mV for high efficiency and accuracy, with ±5% LED current accuracy. The regulator also includes UVLO and over-temperature protection, and a low shutdown current of less than 1µA.
This LED driver is available in an 8-pin MLF® (2x2mm) package, suitable for surface mount applications. The operating junction temperature range is -40°C to +125°C. Applications include mobile handsets, LCD backlighting, digital cameras, and portable media players.
| Qty | Low | High |
|---|---|---|
| 1+ | $0.17 | $0.17 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The input voltage range is 2.5V to 6.5V.
The maximum switch current is 1.2A.
The PWM switching frequency is 1.2MHz.
Yes, it offers selectable over-voltage protection at 18V or 25V.
The operating temperature range is -40°C to +125°C.
The package is 8-MLF® (2x2 mm) with exposed pad, surface-mount.
The shutdown current is less than 1µA.