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
| SortOrder | Part# | Number of Outputs | Vin (min) (V) | Vin (max) (V) | Output Current (typ) (A) | Monolithic | Vout Min (typ) (V) | Synchronous | Isupply (typ) (A) | Price (1000+) ($ US) |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | LTC7151S | 1 | 3.1 | 20 | 15 | Yes | 500m | Yes | 2m | $3.75 (LTC7151SEV#PBF) |
| 2 | LTC3889 | 2 | 5 | 60 | 20 | No | 1 | Yes | 26m | $7.63 (LTC3889EUKG#PBF) |
| 3 | LTC3372 | 5 | 4.5 | 60 | 20 | No | 800m | Yes | 33µ | $5.75 (LTC3372EUK#PBF) |
| 4 | LTM8074 | 1 | 3.2 | 40 | 1.2 | Yes | 800m | Yes | 8µ | $3.83 (LTM8074EY#PBF) |
| 5 | LTM8071 | 1 | 3.6 | 60 | 5 | Yes | 970m | Yes | 3µ | $14.53 (LTM8071EY#PBF) |
| 6 | LTM8002 | 1 | 3.4 | 40 | 2.5 | Yes | 970m | Yes | 25µ | $9.12 (LTM8002IY#PBF) |
| 7 | LTM4700 (single output) | 1 | 4.5 | 16 | 100 | Yes | 500m | Yes | 50m | $97.26 (LTM4700EY#PBF) |
| 8 | LTM4700 (dual output) | 2 | 4.5 | 16 | 50 | Yes | 500m | Yes | 50m | $97.26 (LTM4700EY#PBF) |
| 9 | LTC3894 | 1 | 4.5 | 150 | 10 | No | 800m | No | 21µ | $2.55 (LTC3894EFE#PBF) |
| 10 | LTC3310S | 1 | 2.25 | 5.5 | 10 | Yes | 500m | Yes | 1.3m | $2.60 (LTC3310SEV#PBF) |
| 11 | LTM4686-1 (single output) | 1 | 2.375 | 17 | 20 | Yes | 500m | Yes | 20m | $23.23 (LTM4686EV-1#PBF) |
| 12 | LTM4686-1 (dual output) | 2 | 2.375 | 17 | 10 | Yes | 500m | Yes | 20m | $23.23 (LTM4686EV-1#PBF) |
| 13 | LTM4686 (single output) | 1 | 4.5 | 17 | 20 | Yes | 500m | Yes | 20m | $23.23 (LTM4686EV#PBF) |
| 14 | LTM4686 (dual output) | 2 | 4.5 | 17 | 10 | Yes | 500m | Yes | 20m | $23.23 (LTM4686EV#PBF) |
| 15 | LTM4678 (single output) | 1 | 4.5 | 16 | 50 | Yes | 500m | Yes | 20m | $47.48 (LTM4678EY#PBF) |
| 16 | LTM4678 (dual output) | 2 | 4.5 | 16 | 25 | Yes | 500m | Yes | 20m | $47.48 (LTM4678EY#PBF) |
| 17 | LTM4662 | 2 | 4.5 | 20 | 15 | Yes | 600m | Yes | 20m | $28.75 (LTM4662EY#PBF) |
| 18 | LTM4653 | 1 | 3.1 | 58 | 4 | Yes | 500m | Yes | 450µ | $12.55 (LTM4653EY#PBF) |
| 19 | LTM4638 | 1 | 3.1 | 20 | 15 | Yes | 600m | Yes | 18m | $13.80 (LTM4638EY#PBF) |
| 20 | LTM4626 | 1 | 3.1 | 20 | 12 | Yes | 600m | Yes | 18m | $10.50 (LTM4626EY#PBF) |
| 21 | LT8642S | 1 | 2.8 | 18 | 10 | Yes | 597m | Yes | 230µ | $4.15 (LT8642SEV#PBF) |
| 22 | LT8650S-1 | 2 | 3 | 42 | 4 | Yes | 800m | Yes | 3.7µ | $6.58 (LT8650SHV-1#PBF) |
| 23 | ADP5138 | 5 | 3 | 5.5 | 1 | Yes | 800m | Yes | 6m | $2.03 (ADP5138ACPZ-2-R7) |
| 24 | LT8643S-2 | 1 | 3.4 | 42 | 6 | Yes | 970m | Yes | 1.7µ | $4.65 (LT8643SEV-2#PBF) |
| 25 | LT8640S-2 | 1 | 3.4 | 42 | 6 | Yes | 970m | Yes | 1.7µ | $4.65 (LT8640SEV-2#PBF) |
| 26 | LTM4680 | 2 | 4.5 | 16 | 30 | Yes | 500m | Yes | 37m | $58.00 (LTM4680EY#PBF) |
| 27 | LTM4646 | 2 | 4.5 | 20 | 10 | Yes | 600m | Yes | 17m | $18.85 (LTM4646EY#PBF) |
| 28 | LTC7815 | 3 | 2.5 | 38 | 25 | No | 800m | Yes | 38µ | $4.35 (LTC7815EUHF#PBF) |
| 29 | LTC7810 | 2 | 4.5 | 140 | 15 | No | 1 | Yes | 78µ | $5.20 (LTC7810ELXE#PBF) |
| 30 | LT8646S | 1 | 3.4 | 65 | 8 | Yes | 970m | Yes | 17µ | $5.95 (LT8646SEV#PBF) |
| 31 | LT8619 | 1 | 3 | 60 | 1.2 | Yes | 800m | Yes | 6µ | $2.65 (LT8619EDD#PBF) |
| 32 | LTM8065 | 1 | 3.4 | 40 | 2.5 | Yes | 970m | Yes | 8µ | $7.75 (LTM8065EY#PBF) |
| 33 | LTM8063 | 1 | 3.2 | 40 | 2 | Yes | 800m | Yes | 8µ | $6.95 (LTM8063EY#PBF) |
| 34 | LTM4645 | 1 | 4.7 | 15 | 25 | Yes | 600m | Yes | 11m | $26.23 (LTM4645EY#PBF) |
| 35 | LTC3874-1 | 1 | 4.5 | 38 | 25 | No | 600m | Yes | 4.6m | $2.47 (LTC3874EUF-1#PBF) |
| 36 | LT8711 | 1 | 4.5 | 42 | - | No | 800m | Yes | 15µ | $2.30 (LT8711EUDC#PBF) |
| 37 | LT8650S | 2 | 3 | 42 | 4 | Yes | 800m | Yes | 3.7µ | $5.75 (LT8650SEV#PBF) |
| 38 | LTM4622A | 2 | 3.6 | 20 | 2 | Yes | 1.5 | Yes | 500µ | $7.15 (LTM4622AEV#PBF) |
| 39 | LTC7801 | 1 | 4 | 140 | 10 | No | 800m | Yes | 40µ | $4.20 (LTC7801EUFD#PBF) |
| 40 | LTC7800 | 1 | 4 | 60 | 20 | No | 800m | Yes | 50µ | $3.47 (LTC7800EUDC#PBF) |
| 41 | LTC7150S | 1 | 3.1 | 20 | 20 | Yes | 600m | Yes | 2m | $5.60 (LTC7150SEY#PBF) |
| 42 | LTC7124 | 2 | 3.1 | 17 | 3.5 | Yes | 600m | Yes | 5.5µ | $4.05 (LTC7124EUDD#PBF) |
| 43 | LTC7103 | 1 | 4.4 | 105 | 2.3 | Yes | 1 | Yes | 9µ | $4.50 (LTC7103EUHE#PBF) |
| 44 | LTC3636-1 | 2 | 3.1 | 20 | 6 | Yes | 1.8 | Yes | 600µ | $4.45 (LTC3636EUFD-1#PBF) |
| 45 | LTC3636 | 2 | 3.1 | 20 | 6 | Yes | 600m | Yes | 600µ | $4.45 (LTC3636EUFD#PBF) |
| 46 | LT8643S | 1 | 3.4 | 42 | 6 | Yes | 970m | Yes | 1.7µ | $4.65 (LT8643SEV#PBF) |
| 47 | LT8609S | 1 | 3 | 42 | 2 | Yes | 774m | Yes | 1.7µ | $2.75 (LT8609SEV#PBF) |
| 48 | LT8606 | 1 | 3 | 42 | 350m | Yes | 778m | Yes | 1.7µ | $1.95 (LT8606BEDC#TRPBF) |
| 49 | ADP5014 | 4 | 2.75 | 6 | 4 | Yes | 500m | Yes | 7m | $2.99 (ADP5014ACPZ-R7) |
| 50 | LTM8073 | 1 | 3.4 | 60 | 3 | Yes | 800m | Yes | 275µ | $10.58 (LTM8073EY#PBF) |
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