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All Products > Semiconductors > Driver ICs > LED Lighting Drivers

Micrel MIC2287 PWM White LED Drivers

Micrel's MIC2287 PWM White LED Drivers are a 1.2MHz pulse width modulated (PWM), boost-switching regulator that is optimized for constant-current, white LED driver applications. With a maximum output voltage of 34V and a switch current of over 500mA, the MIC2287 easily drives a string of up to eight white LEDs in series, ensuring uniform brightness and eliminating several ballast resistors. The MIC2287 implements a constant frequency, 1.2MHz PWM control scheme. The high frequency PWM operation saves board space by reducing external component sizes. The added benefit of the constant frequency PWM scheme as opposed to variable frequency topologies is much lower noise and input ripple injected back to the battery source. To optimize efficiency, the feedback voltage is set to only 95mV. This reduces the power dissipation in the current set resistor and allows the lowest total output voltage, hence minimal current draw from the battery.
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Category   Semiconductors >  Driver ICs >  LED Lighting Drivers

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Micrel MIC2287YD5 TR
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998-MIC2287YD5TR


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MIC2287YD5 TR

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Micrel LED Lighting Drivers Thin SOT23 White LED Driver (Lead Free)
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Data Sheet
4,570
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1: $1.86
10: $1.43
100: $1.17
500: $1.01
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3,000: $0.689

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2.5 V to 10 V 1.2 MHz 5 mA + 125 C SMD/SMT SOT-23-5
Micrel MIC2287-24YML TR
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998-MIC2287-24YMLTR


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MIC2287-24YML TR

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Micrel LED Lighting Drivers 2x2mm White LED Driver w/ 24V OVP (Lead Free)
Page 577

Data Sheet
3,787
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1: $2.00
10: $1.54
100: $1.25
500: $1.08
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5,000: $0.741
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Reel: 5,000
2.5 V to 10 V 1.2 MHz 5 mA + 125 C SMD/SMT MLF-8
Micrel MIC2287-34YML TR
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998-MIC2287-34YMLTR


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MIC2287-34YML TR

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Micrel LED Lighting Drivers 2x2mm White LED Driver w/ 34V OVP (Lead Free)
Page 577

Data Sheet
4,900
In Stock
Cut Tape
1: $2.17
10: $1.67
100: $1.36
500: $1.18
Reel
5,000: $0.806
10,000: View

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Min.: 1
Mult.: 1
Reel: 5,000
2.5 V to 10 V 1.2 MHz 5 mA + 125 C SMD/SMT MLF-8
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