昇降圧 LED ドライバ

アナログ・デバイセズの昇降圧 LED ドライバは、入力電圧が LED 電圧を超えるか、または下回る場合に LED バイアスを許容します。これは、単セル・リチウムイオン(Li-Ion)バッテリが単一 LEDを駆動し、ここでの入力電圧が完全に充電された 4.2 V から完全に消耗した 2.7 V まで変化し、一方で LED 順方向電圧が輝度と温度に応じて 2 V〜4 V の範囲で変化するような場合に理想的です。
アナログ・デバイセズの LED ドライバは、最大限の効率、最小限のノイズ、最小のフットプリントを実現します。その他の機能としては、内蔵されたショットキー・ダイオード、正確な LED 電流マッチング、および複数の出力機能などがあります。
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Buck-Boost LED Drivers

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SortOrderPart#Number of OutputsVin
(min)
(V)
Vin
(max)
(V)
Output Current
(typ)
(A)
Vout Max
(typ)
(V)
MonolithicTopologyUS Price 1000 to 4999
($ US)
1LT8391A 1 4 60 10 60 No Buck-Boost, LED Driver $4.65 (LT8391AEUFD#PBF)
2LT3922 1 2.8 36 2 40 Yes Boost, Buck, Buck-Boost $2.71 (LT3922EUFD#PBF)
3LT8391 1 4 60 10 60 No Buck-Boost, LED Driver $4.65 (LT8391EFE#PBF)
4LT3761A 1 4.5 60 10 100 No Boost, Buck, Buck-Boost, LED Driver, Sepic $3.20 (LT3761AEMSE#PBF)
5LT3761 1 4.5 60 10 100 No Boost, Buck, Buck-Boost, LED Driver, Sepic $3.20 (LT3761EMSE#PBF)
6LT3952 1 3 42 4 60 Yes Boost, Buck, Buck-Boost, LED Driver $3.95 (LT3952EFE#PBF)
7LT3795 1 4.5 110 10 110 No Boost, Buck, Buck-Boost, LED Driver, Sepic $3.45 (LT3795EFE#PBF)
8LT3955 1 4.5 60 1 80 Yes Boost, Buck, Buck-Boost, LED Driver, Sepic $3.75 (LT3955EUHE#PBF)
9LT3954 1 4.5 40 4 40 Yes Boost, Buck, Buck-Boost, LED Driver, Sepic $3.60 (LT3954EUHE#PBF)
10LT3797 3 2.5 40 5 100 No Boost, Buck, Buck-Boost, LED Driver, Sepic $4.95 (LT3797EUKG#PBF)
11LT3796 1 6 100 10 100 No Boost, Buck, Buck-Boost, LED Driver, Sepic $3.45 (LT3796EFE#PBF)
12LT3791 1 4.7 60 10 60 No Buck-Boost, LED Driver $4.75 (LT3791EFE#PBF)
13LTM8042-1 1 3 30 350m 32 Yes Boost, Buck, LED Driver $8.76 (LTM8042EV-1#PBF)
14LTM8042 1 3 30 1 32 Yes Boost, Buck, LED Driver $8.76 (LTM8042EV#PBF)
15LT3519 1 3 30 500m 45 Yes Boost, Buck, Buck-Boost, LED Driver, Sepic $2.50 (LT3519EMS#PBF)
16LT3956 1 4.5 80 1.5 80 Yes Boost, Buck, Buck-Boost, Flyback, LED Driver, Sepic $3.50 (LT3956EUHE#PBF)
17LT3756 1 6 100 10 100 No Boost, Buck, Buck-Boost, LED Driver, Sepic $2.90 (LT3756EUD-2#PBF)
18LT3755 1 4.5 40 10 75 No Boost, Buck, Buck-Boost, LED Driver, Sepic $2.75 (LT3755EUD-1#PBF)
19LT3492 3 3 30 300m 60 Yes Boost, Buck, Buck-Boost, LED Driver $3.70 (LT3492EUFD#PBF)
20LT3517 1 3 30 1.25 40 Yes Boost, Buck, Buck-Boost, LED Driver $2.70 (LT3517EUF#PBF)
21LT3518 1 3 30 1.86 45 Yes Boost, Buck, Buck-Boost, LED Driver $2.95 (LT3518EUF#PBF)
22LT3496 3 3 30 700m 45 Yes Boost, Buck, Buck-Boost, LED Driver $3.50 (LT3496EUFD#PBF)
23LT3476 4 2.8 16 1 36 Yes Boost, Buck, Buck-Boost, LED Driver $4.64 (LT3476EUHF#PBF)
24LTC3452 7 2.7 5.5 50m 4.5 Yes Buck-Boost, LED Driver $1.80 (LTC3452EUF#PBF)
25LT3478 1 2.8 36 4.2 42 Yes Boost, Buck, Buck-Boost, LED Driver $3.60 (LT3478EFE#PBF)
26LTC3454 1 2.7 5.5 1 5.15 Yes Buck-Boost, LED Driver $1.95 (LTC3454EDD#PBF)
27LT3477 1 2.3 25 2.66 40 Yes Boost, Buck, Buck-Boost, LED Driver $3.15 (LT3477EUF#PBF)
28LTC3453 4 2.7 5.5 125m 4.5 Yes Buck-Boost, LED Driver $1.85 (LTC3453EUF#PBF)
29LT1618 1 1.6 18 1 36 Yes Boost, Flyback, Sepic $1.75 (LT1618EDD#PBF)