| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
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31,515 pcs
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31515 pcs | On Request | 1 | On Request | On Request | 2020+ | On Request | On Request |
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The MIC2291YD5-TR from Microchip Technology is a 1.2MHz Pulse Width Modulation (PWM) boost-switching regulator designed for high-current, white LED photo flash applications. With a guaranteed switch current of 1.2A, it can drive a string of 3 white LEDs in series at 100mA, enhancing brightness and reducing the need for ballast resistors.
This regulator employs a constant frequency, 1.2MHz PWM control scheme, which helps save board space by allowing for smaller external components. The high-frequency operation also results in lower noise and input ripple compared to variable frequency topologies. The feedback voltage is set to 95mV to optimize efficiency by reducing power dissipation in the current set resistor.
The MIC2291YD5-TR offers over-voltage protection with options for 15V and 34V, enabling the selection of appropriately rated external components. It is available in a low-profile, Thin SOT23-5 package and operates within a junction temperature range of -40°C to +125°C. The device also features stable operation with ceramic capacitors, <1% line and load regulation, and a shutdown current of 1µA.
Key features include a 2.5V to 10V input voltage range, output voltage up to 34V, 1.2A switch current, 1.2MHz PWM operation, and over-temperature protection. Applications include cell phones, PDAs, GPS systems, digital cameras, IP phones, and LED flashlights.
| 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 10V.
The output voltage can be up to 34V.
The switch current rating is 1.2A.
The operating frequency is 1.2MHz.
The operating temperature range is -40°C to +125°C.
It is supplied in a SOT-23-5 Thin, TSOT-23-5 package.