Buck Regulator Plus LDO
Analog Devices manufactures a broad line of high performance dc-to-dc regulators that combine one or more high performance step-down (buck) switching regulators with one or more linear dropout regulators (LDOs).
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- µModule Regulator Combines a Switcher with Five 1.1A LDOs: Use Them for Multiple Low Noise Rails, or Parallel Them to Spread Heat and Share Current to 5A PDF
- µModule Regulator Charges Supercapacitor Backup Supply, Supporting LDO Outputs When the Input Supply Fails PDF
- The Harsh Reality of Wide-Ranging 4V–36V Automotive Batteries Is No Problem for Triple Output Regulator in 4mm × 5mm QFN PDF
- June 2008 - Multi-Rail DC/DC Converter in a 3mm × 3mm QFN Takes Inputs as Low as 0.7V PDF
- June 2008 - Quad Output Regulator Meets Varied Demands of Multiple Power Supplies PDF
- Jan 2008 - Monolithic 2A Buck Regulator Plus Linear Regulator Simplifies Wide Input Voltage Applications PDF
- Dec 2002 Replace Two ICs with a Combination High Efficiency Buck Controller Plus Low Noise LDO PDF
Buck Regulator Plus LDO
| SortOrder | Part# | Number of Outputs | Vin (min) (V) | Vin (max) (V) | Buck Output Current (typ) (A) | LDO Output Current (typ) (A) | Synchronous | Monolithic | Price (1000+) ($ US) |
|---|---|---|---|---|---|---|---|---|---|
| 1 | ADP5138 | 5 | 3 | 5.5 | 1 | 250m | Yes | Yes | $2.03 (ADP5138ACPZ-2-R7) |
| 2 | ADP5003 | 2 | 4.2 | 15 | 3 | 3 | Yes | Yes | $2.49 (ADP5003ACPZ-R7) |
| 3 | LTM8001 | 6 | 6 | 36 | 5 | 1.1, 1.1, 1.1, 1.1, 1.1 | No | Yes | $17.40 (LTM8001EY#PBF) |
| 4 | LT3668 | 3 | 4.3 | 40 | 400m | 200m, 200m | No | Yes | $2.55 (LT3668EMSE#PBF) |
| 5 | LT3667 | 3 | 4.3 | 40 | 400m | 200m, 200m | No | Yes | $2.55 (LT3667EMSE#PBF) |
| 6 | ADP5080 | 8 | 4 | 15 | 800m, 1.15, 1.5, 2, 3 | 300m, 400m | Yes | Yes | $3.99 (ADP5080ACBZ-1-RL) |
| 7 | ADP5134 | 4 | 2.5 | 5.5 | 1.2, 1.2 | 300m, 300m | Yes | Yes | $2.09 (ADP5134ACPZ-R7) |
| 8 | ADP5052 | 5 | 4.5 | 15 | 1.2, 1.2, 4, 4 | 200m | Yes | Yes | $3.59 (ADP5052ACPZ-R7) |
| 9 | ADP5050 | 5 | 4.5 | 15 | 1.2, 1.2, 4, 4 | 200m | Yes | Yes | $4.39 (ADP5050ACPZ-R7) |
| 10 | ADP5041 | 3 | 2.3 | 5.5 | 1.2 | 300m, 300m | Yes | Yes | $1.79 (ADP5041ACPZ-1-R7) |
| 11 | ADP5040 | 3 | 2.3 | 5.5 | 1.2 | 300m, 300m | Yes | Yes | $1.39 (ADP5040ACPZ-1-R7) |
| 12 | ADP5037 | 4 | 2.3 | 5.5 | 800m, 800m | 300m, 300m | Yes | Yes | $1.69 (ADP5037ACPZ-1-R7) |
| 13 | ADP5024 | 3 | 2.3 | 5.5 | 1.2, 1.2 | 300m | Yes | Yes | $1.79 (ADP5024ACPZ-1-R7) |
| 14 | ADP5023 | 3 | 2.3 | 5.5 | 800m, 800m | 300m | Yes | Yes | $1.59 (ADP5023ACPZ-1-R7) |
| 15 | LT3507A | 4 | 4 | 36 | 1.8, 1.8, 2.7 | - | No | Yes | $4.25 (LT3507AEUHF#PBF) |
| 16 | ADP5034 | 4 | 2.3 | 5.5 | 1.2, 1.2 | 300m, 300m | Yes | Yes | $1.99 (ADP5034ACPZ-1-R7) |
| 17 | ADP5033 | 4 | 2.3 | 5.5 | 800m, 800m | 300m, 300m | Yes | Yes | $1.90 (ADP5033ACBZ-1-R7) |
| 18 | LT3645 | 2 | 3.6 | 36 | 500m | 200m | No | Yes | $2.25 (LT3645EUD#PBF) |
| 19 | ADP5043 | 2 | 2.3 | 5.5 | 800m | 300m | Yes | Yes | $1.79 (ADP5043ACPZ-1-R7) |
| 20 | LTC3104 | 2 | 2.5 | 15 | 300m | 10m | Yes | Yes | $2.70 (LTC3104EDE#PBF) |
| 21 | ADP5042 | 3 | 2.3 | 5.5 | 800m | 300m, 300m | Yes | Yes | $1.99 (ADP5042ACPZ-1-R7) |
| 22 | LT3694 | 3 | 4 | 36 | 2.6 | - | No | Yes | $3.85 (LT3694EUFD#PBF) |
| 23 | ADP5022 | 3 | 2.4 | 5.5 | 600m, 600m | 150m | Yes | Yes | - |
| 24 | LT3570 | 2 | 2.1 | 36 | 1.5 | - | No | Yes | $2.95 (LT3570EUF#PBF) |
| 25 | LTC3100 | 3 | 650m | 5 | 250m | 100m | Yes | Yes | $3.10 (LTC3100EUD#PBF) |
| 26 | LT3507 | 4 | 4 | 36 | 1.5, 1.5, 2.4 | - | No | Yes | $4.25 (LT3507EUHF#PBF) |
| 27 | LT1939 | 2 | 3 | 25 | 2 | - | No | Yes | $3.05 (LT1939EDD#PBF) |
| 28 | LTC3672B-2 | 3 | 2.9 | 5.5 | 500m | 150m, 150m | Yes | Yes | $1.95 (LTC3672BEDC-2#TRPBF) |
| 29 | LT3500 | 2 | 3 | 36 | 2 | - | No | Yes | $3.25 (LT3500EDD#PBF) |
| 30 | LTC3672B-1 | 3 | 2.9 | 5.5 | 500m | 150m, 150m | Yes | Yes | $1.95 (LTC3672BEDC-1#TRPBF) |
| 31 | LTC3670 | 3 | 2.5 | 5.5 | 500m | 150m, 150m | Yes | Yes | $1.95 (LTC3670EDDB#TRPBF) |
| 32 | LTC3541-3 | 2 | 2.7 | 5.5 | 500m | 300m | Yes | Yes | $1.89 (LTC3541EDD-3#PBF) |
| 33 | LTC3541-2 | 2 | 2.7 | 5.5 | 500m | 300m | Yes | Yes | $1.89 (LTC3541EDD-2#PBF) |
| 34 | LTC3446 | 3 | 2.7 | 5.5 | 1 | 300m, 300m | Yes | Yes | $2.75 (LTC3446EDE#PBF) |
| 35 | LTC3541-1 | 2 | 2.7 | 5.5 | 500m | 300m | Yes | Yes | $1.89 (LTC3541EDD-1#PBF) |
| 36 | LTC3541 | 2 | 2.7 | 5.5 | 500m | 300m | Yes | Yes | $1.89 (LTC3541EDD#PBF) |
| 37 | LTC3445 | 3 | 2.5 | 5.5 | 600m | 50m, 50m | Yes | Yes | $2.45 (LTC3445EUF#PBF) |
| 38 | LT1941 | 3 | 3.3 | 25 | 2, 3 | - | No | Yes | $5.25 (LT1941EFE#PBF) |
| 39 | LTC3700 | 2 | 2.65 | 9.8 | 5 | 150m | No | No | $2.35 (LTC3700EMS#PBF) |
| 40 | LTC1704 | 2 | 3.15 | 5.5 | 20 | 2 | Yes | No | $4.10 (LTC1704BEGN#PBF) |
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