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MIC2291

1.2A PWM Boost Regulator Photo Flash LED Driver

GeneralDescription TheMIC2291isa1.2MHzPulseWidthModulation(PWM),boost-switchingregulatorthatisoptimizedforhigh-current,whiteLEDphotoflashapplications.Withaguaranteedswitchcurrentof1.2A,theMIC2291easilydrivesastringof3whiteLEDsinseriesat100mA,ensuringah

MicrelMicrel Semiconductor

麥瑞半導(dǎo)體

MIC2291

Boost Regulator Photo Flash LED Driver; ? 2.5V to 10V input voltage\n? Output voltage up to 34V\n? 1.2A switch current\n? 1.2MHz PWM operation\n? 95mV feedback voltage\n? Over voltage protection (OVP)\n? Options for 15V and 34V\n? Stable with ceramic capacitors\n? <1% line and load regulation\n? 1μA shutdown current\n? Over temperature protection\n? UVLO\n? Low-profile Thin SOT23-5 package option\n? -40oC to +125oC junction temperature range;

The MIC2291 is a 1.2MHz pulse-width modulation (PWM), boost-switching regulator that is optimized for high-current, white LED photo flash applications. With a guaranteed switch current of 1.2A, the MIC2291 easily drives a string of three white LEDs in series at 100mA, ensuring a high level of brightness and eliminating several ballast resistors.The MIC2291 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, in contrast 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.The MIC2291 is available with two levels of over-voltage protection, 15V, and 34V. This allows designers to choose the smallest possible external components with the appropriate voltage ratings for their applications. The MIC2291 has a junction temperature range of -40oC to +125°C.

MicrochipMicrochip Technology

微芯科技微芯科技股份有限公司

MIC2291

1.2A PWM Boost Regulator Photo Flash LED Driver

MicrelMicrel Semiconductor

麥瑞半導(dǎo)體

MIC2291

1.2A PWM Boost Regulator Photo Flash LED Driver

MicrelMicrel Semiconductor

麥瑞半導(dǎo)體

MIC2291-15BML

1.2A PWM Boost Regulator Photo Flash LED Driver

GeneralDescription TheMIC2291isa1.2MHzPulseWidthModulation(PWM),boost-switchingregulatorthatisoptimizedforhigh-current,whiteLEDphotoflashapplications.Withaguaranteedswitchcurrentof1.2A,theMIC2291easilydrivesastringof3whiteLEDsinseriesat100mA,ensuringah

MicrelMicrel Semiconductor

麥瑞半導(dǎo)體

MIC2291-15YML

1.2A PWM Boost Regulator Photo Flash LED Driver

GeneralDescription TheMIC2291isa1.2MHzPulseWidthModulation(PWM),boost-switchingregulatorthatisoptimizedforhigh-current,whiteLEDphotoflashapplications.Withaguaranteedswitchcurrentof1.2A,theMIC2291easilydrivesastringof3whiteLEDsinseriesat100mA,ensuringah

MicrelMicrel Semiconductor

麥瑞半導(dǎo)體

MIC2291-34BML

1.2A PWM Boost Regulator Photo Flash LED Driver

GeneralDescription TheMIC2291isa1.2MHzPulseWidthModulation(PWM),boost-switchingregulatorthatisoptimizedforhigh-current,whiteLEDphotoflashapplications.Withaguaranteedswitchcurrentof1.2A,theMIC2291easilydrivesastringof3whiteLEDsinseriesat100mA,ensuringah

MicrelMicrel Semiconductor

麥瑞半導(dǎo)體

MIC2291-34YML

1.2A PWM Boost Regulator Photo Flash LED Driver

GeneralDescription TheMIC2291isa1.2MHzPulseWidthModulation(PWM),boost-switchingregulatorthatisoptimizedforhigh-current,whiteLEDphotoflashapplications.Withaguaranteedswitchcurrentof1.2A,theMIC2291easilydrivesastringof3whiteLEDsinseriesat100mA,ensuringah

MicrelMicrel Semiconductor

麥瑞半導(dǎo)體

MIC2291BD5

1.2A PWM Boost Regulator Photo Flash LED Driver

GeneralDescription TheMIC2291isa1.2MHzPulseWidthModulation(PWM),boost-switchingregulatorthatisoptimizedforhigh-current,whiteLEDphotoflashapplications.Withaguaranteedswitchcurrentof1.2A,theMIC2291easilydrivesastringof3whiteLEDsinseriesat100mA,ensuringah

MicrelMicrel Semiconductor

麥瑞半導(dǎo)體

MIC2291YD5

1.2A PWM Boost Regulator Photo Flash LED Driver

GeneralDescription TheMIC2291isa1.2MHzPulseWidthModulation(PWM),boost-switchingregulatorthatisoptimizedforhigh-current,whiteLEDphotoflashapplications.Withaguaranteedswitchcurrentof1.2A,theMIC2291easilydrivesastringof3whiteLEDsinseriesat100mA,ensuringah

MicrelMicrel Semiconductor

麥瑞半導(dǎo)體

技術(shù)參數(shù)

  • Topology：

    Boost

  • +Vin min (V)：

    2.5

  • +Vin max (V)：

    10

  • Output Current：

    2A BJT

  • Dimming：

    PWM / Analog

  • Product Type：

    LED Backlight

  • VOUT：

    34

  • llim Typ (A)：

    1.2

  • llim Max (A)：

    0

供應(yīng)商型號(hào)品牌批號(hào)封裝庫存備注價(jià)格
MICREL/麥瑞
24+
SOT23-5
33000
原裝現(xiàn)貨
 詢價(jià)
MIC
16+
SOT23-5
10000
進(jìn)口原裝現(xiàn)貨/價(jià)格優(yōu)勢!
 詢價(jià)
MICREL
24+
SOT23-5
3321
詢價(jià)
MICREL
2020+
MLF22D-
18
百分百原裝正品 真實(shí)公司現(xiàn)貨庫存 本公司只做原裝 可
 詢價(jià)
Micrel
23+
8-MLFreg
11923
詢價(jià)
MIC
17+
SOT23-5
6200
100%原裝正品現(xiàn)貨
 詢價(jià)
MICREL
2016+
SOT-23-5
3000
只做原裝,假一罰十,公司可開17%增值稅發(fā)票!
 詢價(jià)
MICREL
24+
SOT23
6980
原裝現(xiàn)貨,可開13%稅票
 詢價(jià)
Microchip
23+
2017-MI
21500
受權(quán)代理!全新原裝現(xiàn)貨特價(jià)熱賣!
 詢價(jià)
MICREL
23+
NA
13650
原裝正品,假一罰百!
 詢價(jià)
更多MIC2291供應(yīng)商 更新時(shí)間2025-7-30 16:32:00

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