Step-Down (Buck) Regulators

Analog Devices manufactures a broad line of high performance, step-down buck switching regulator ICs and buck switching controller ICs with both synchronous and nonsynchronous switches. These switching voltage regulators offer typical input voltage capability from less than 2 V up to 100 V+, switching frequencies up to 4 MHz, and high efficiency operation up to 96%. With burst mode operation, quiescent currents in the tens of micro-amps level can be attained. This combination of features allows for very small, low profile buck switching regulator circuit implementations with minimum external components.
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Step-Down (Buck) Regulators

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SortOrderPart#Number of OutputsVin
(min)
(V)
Vin
(max)
(V)
Output Current
(typ)
(A)
MonolithicVout Min
(typ)
(V)
SynchronousIsupply
(typ)
(A)
Price (1000+)
($ US)
1LTC7151S 1 3.1 20 15 Yes 500m Yes 2 $3.75 (LTC7151SEV#PBF)
2LTC3889 2 5 60 20- 1 Yes 26m $7.63 (LTC3889EUKG#PBF)
3LTC3372 5 4.5 60 20 No 800m Yes 33µ $5.75 (LTC3372EUK#PBF)
4LTM8074 1 3.2 40 1.2 Yes 800m Yes $3.83 (LTM8074EY#PBF)
5LTM8071 1 3.6 60 5 Yes 970m Yes $14.53 (LTM8071EY#PBF)
6LTM8002 1 3.4 40 2.5 Yes 970m Yes 25µ $9.12 (LTM8002IY#PBF)
7LTM4700 (single output) 1 4.5 16 100 Yes 500m Yes 50m $97.26 (LTM4700EY#PBF)
8LTM4700 (dual output) 2 4.5 16 50 Yes 500m Yes 50m $97.26 (LTM4700EY#PBF)
9LTC3894 1 4.5 150 10 No 800m No 21µ $2.55 (LTC3894EFE#PBF)
10LTC3310S 1 2.25 5.5 10 Yes 500m Yes 1.3m $2.60 (LTC3310SEV#PBF)
11LTM4686-1 (single output) 1 2.375 17 20 Yes 500m Yes 20m $23.23 (LTM4686EV-1#PBF)
12LTM4686-1 (dual output) 2 2.375 17 10 Yes 500m Yes 20m $23.23 (LTM4686EV-1#PBF)
13LTM4686 (single output) 1 4.5 17 20 Yes 500m Yes 20m $23.23 (LTM4686EV#PBF)
14LTM4686 (dual output) 2 4.5 17 10 Yes 500m Yes 20m $23.23 (LTM4686EV#PBF)
15LTM4678 (single output) 1 4.5 16 50 Yes 500m Yes 20m $47.48 (LTM4678EY#PBF)
16LTM4678 (dual output) 2 4.5 16 25 Yes 500m Yes 20m $47.48 (LTM4678EY#PBF)
17LTM4662 2 4.5 20 15 Yes 600m Yes 20m $28.75 (LTM4662EY#PBF)
18LTM4653 1 3.1 58 4 Yes 500m Yes 450µ $12.55 (LTM4653EY#PBF)
19LTM4646 2 4.5 20 10 Yes 600m Yes 17m $18.85 (LTM4646EY#PBF)
20LTC7815 3 2.5 38 25 No 800m Yes 38µ $4.35 (LTC7815EUHF#PBF)
21LTC7810 2 4.5 140 15 No 1 Yes 78µ $5.20 (LTC7810ELXE#PBF)
22LT8646S 1 3.4 65 8 Yes 970m Yes 17µ $5.95 (LT8646SEV#PBF)
23LT8642S 1 2.8 18 10 Yes 597m Yes 230µ $4.15 (LT8642SEV#PBF)
24LT8619 1 3 60 1.2 Yes 800m Yes $2.65 (LT8619EDD#PBF)
25ADP5138 5 3 5.5 1 Yes 800m Yes 6m $2.03 (ADP5138ACPZ-2-R7)
26LT8643S-2 1 3.4 42 6 Yes 970m Yes 1.7µ $4.65 (LT8643SEV-2#PBF)
27LT8640S-2 1 3.4 42 6 Yes 970m Yes 1.7µ $4.65 (LT8640SEV-2#PBF)
28LTM8065 1 3.4 40 2.5 Yes 970m Yes $7.75 (LTM8065EY#PBF)
29LTM8063 1 3.2 40 2 Yes 800m Yes $6.95 (LTM8063EY#PBF)
30LTM4645 1 4.7 15 25 Yes 600m Yes 11m $26.23 (LTM4645EY#PBF)
31LTC3874-1 1 4.5 38 25 No 600m Yes 4.6m $2.47 (LTC3874EUF-1#PBF)
32LT8711 1 4.5 42- No 800m Yes 15µ $2.30 (LT8711EUDC#PBF)
33LT8650S 2 3 42 4 Yes 800m Yes 3.7µ $5.75 (LT8650SEV#PBF)
34LTM4622A 2 3.6 20 2 Yes 1.5 Yes 500µ $7.15 (LTM4622AEV#PBF)
35LTC7801 1 4 140 10 No 800m Yes 40µ $4.20 (LTC7801EUFD#PBF)
36LTC7800 1 4 60 20 No 800m Yes 50µ $3.47 (LTC7800EUDC#PBF)
37LTC7150S 1 3.1 20 20 Yes 600m Yes 2m $5.60 (LTC7150SEY#PBF)
38LTC7124 2 3.1 17 3.5 Yes 600m Yes 5.5µ $4.05 (LTC7124EUDD#PBF)
39LTC7103 1 4.4 105 2.3 Yes 1 Yes $4.50 (LTC7103EUHE#PBF)
40LTC3636-1 2 3.1 20 6 Yes 1.8 Yes 600µ $4.45 (LTC3636EUFD-1#PBF)
41LTC3636 2 3.1 20 6 Yes 600m Yes 600µ $4.45 (LTC3636EUFD#PBF)
42LT8643S 1 3.4 42 6 Yes 970m Yes 1.7µ $4.65 (LT8643SEV#PBF)
43LT8609S 1 3 42 2 Yes 774m Yes 1.7µ $2.75 (LT8609SEV#PBF)
44LT8606 1 3 42 350m Yes 778m Yes 1.7µ $1.95 (LT8606BEDC#TRPBF)
45ADP5014 4 2.75 6 4 Yes 500m Yes 7m $2.99 (ADP5014ACPZ-R7)
46LTM8073 1 3.4 60 3 Yes 800m Yes 275µ $10.58 (LTM8073EY#PBF)
47LTM4650A-1 (dual output) 2 4.5 16 25 Yes 600m Yes 4.5m $48.00 (LTM4650AEY-1#PBF)
48LTM4650A (dual output) 2 4.5 16 25 Yes 600m Yes 4.5m $48.00 (LTM4650AEY#PBF)
49LTM4636-1 1 4.7 15 40 Yes 600m Yes 16m $40.10 (LTM4636EY-1#PBF)
50LT8645S 1 3.4 65 8 Yes 970m Yes 1.7µ $5.95 (LT8645SEV#PBF)