Datasheet Analog Devices LT3991
| Manufacturer | Analog Devices |
| Series | LT3991 |
55V, 1.2A Step-Down Regulator with 2.8μA Quiescent Current
Datasheets
Datasheet LT3991, LT3991-3.3, LT3991-5
PDF, 398 Kb, Language: en, File uploaded: Sep 19, 2017, Pages: 24
55V, 1.2A Step-Down Regulator with 2.8μA Quiescent Current
55V, 1.2A Step-Down Regulator with 2.8μA Quiescent Current
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Prices
Status
| LT3991EDD#PBF | LT3991EDD#TRPBF | LT3991EMSE#PBF | LT3991EMSE#TRPBF | LT3991EMSE-3.3#PBF | LT3991EMSE-3.3#TRPBF | LT3991EMSE-5#PBF | LT3991EMSE-5#TRPBF | LT3991IDD#PBF | LT3991IDD#TRPBF | LT3991IMSE#PBF | LT3991IMSE#TRPBF | LT3991IMSE-3.3#PBF | LT3991IMSE-3.3#TRPBF | LT3991IMSE-5#PBF | LT3991IMSE-5#TRPBF | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Lifecycle Status | Production (Appropriate for new designs but newer alternatives may exist) | Production (Appropriate for new designs but newer alternatives may exist) | Production (Appropriate for new designs but newer alternatives may exist) | Production (Appropriate for new designs but newer alternatives may exist) | Production (Appropriate for new designs but newer alternatives may exist) | Production (Appropriate for new designs but newer alternatives may exist) | Production (Appropriate for new designs but newer alternatives may exist) | Production (Appropriate for new designs but newer alternatives may exist) | Production (Appropriate for new designs but newer alternatives may exist) | Production (Appropriate for new designs but newer alternatives may exist) | Production (Appropriate for new designs but newer alternatives may exist) | Production (Appropriate for new designs but newer alternatives may exist) | Production (Appropriate for new designs but newer alternatives may exist) | Production (Appropriate for new designs but newer alternatives may exist) | Production (Appropriate for new designs but newer alternatives may exist) | Production (Appropriate for new designs but newer alternatives may exist) |
Packaging
| LT3991EDD#PBF | LT3991EDD#TRPBF | LT3991EMSE#PBF | LT3991EMSE#TRPBF | LT3991EMSE-3.3#PBF | LT3991EMSE-3.3#TRPBF | LT3991EMSE-5#PBF | LT3991EMSE-5#TRPBF | LT3991IDD#PBF | LT3991IDD#TRPBF | LT3991IMSE#PBF | LT3991IMSE#TRPBF | LT3991IMSE-3.3#PBF | LT3991IMSE-3.3#TRPBF | LT3991IMSE-5#PBF | LT3991IMSE-5#TRPBF | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| N | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 |
| Package | 10-Lead DFN (3mm x 3mm w/ EP) | 10-Lead DFN (3mm x 3mm w/ EP) | 10-Lead MSOP w/ EP | 10-Lead MSOP w/ EP | 10-Lead MSOP w/ EP | 10-Lead MSOP w/ EP | 10-Lead MSOP w/ EP | 10-Lead MSOP w/ EP | 10-Lead DFN (3mm x 3mm w/ EP) | 10-Lead DFN (3mm x 3mm w/ EP) | 10-Lead MSOP w/ EP | 10-Lead MSOP w/ EP | 10-Lead MSOP w/ EP | 10-Lead MSOP w/ EP | 10-Lead MSOP w/ EP | 10-Lead MSOP w/ EP |
| Pins | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 |
| Package Code | 05-08-1699 | 05-08-1699 | 05-08-1664 | 05-08-1664 | 05-08-1664 | 05-08-1664 | 05-08-1664 | 05-08-1664 | 05-08-1699 | 05-08-1699 | 05-08-1664 | 05-08-1664 | 05-08-1664 | 05-08-1664 | 05-08-1664 | 05-08-1664 |
Parametrics
| Parameters / Models | LT3991EDD#PBF | LT3991EDD#TRPBF | LT3991EMSE#PBF | LT3991EMSE#TRPBF | LT3991EMSE-3.3#PBF | LT3991EMSE-3.3#TRPBF | LT3991EMSE-5#PBF | LT3991EMSE-5#TRPBF | LT3991IDD#PBF | LT3991IDD#TRPBF | LT3991IMSE#PBF | LT3991IMSE#TRPBF | LT3991IMSE-3.3#PBF | LT3991IMSE-3.3#TRPBF | LT3991IMSE-5#PBF | LT3991IMSE-5#TRPBF |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Monolithic | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| Number of Outputs | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Operating Temperature Range, °C | -40 to 125 | -40 to 125 | -40 to 125 | -40 to 125 | -40 to 125 | -40 to 125 | -40 to 125 | -40 to 125 | -40 to 125 | -40 to 125 | -40 to 125 | -40 to 125 | -40 to 125 | -40 to 125 | -40 to 125 | -40 to 125 |
| Output Current(typ), A | 1.2 | 1.2 | 1.2 | 1.2 | 1.2 | 1.2 | 1.2 | 1.2 | 1.2 | 1.2 | 1.2 | 1.2 | 1.2 | 1.2 | 1.2 | 1.2 |
| Synchronous | No | No | No | No | No | No | No | No | No | No | No | No | No | No | No | No |
| Vin(max), V | 55 | 55 | 55 | 55 | 55 | 55 | 55 | 55 | 55 | 55 | 55 | 55 | 55 | 55 | 55 | 55 |
| Vin(min), V | 4.3 | 4.3 | 4.3 | 4.3 | 4.3 | 4.3 | 4.3 | 4.3 | 4.3 | 4.3 | 4.3 | 4.3 | 4.3 | 4.3 | 4.3 | 4.3 |
Eco Plan
| LT3991EDD#PBF | LT3991EDD#TRPBF | LT3991EMSE#PBF | LT3991EMSE#TRPBF | LT3991EMSE-3.3#PBF | LT3991EMSE-3.3#TRPBF | LT3991EMSE-5#PBF | LT3991EMSE-5#TRPBF | LT3991IDD#PBF | LT3991IDD#TRPBF | LT3991IMSE#PBF | LT3991IMSE#TRPBF | LT3991IMSE-3.3#PBF | LT3991IMSE-3.3#TRPBF | LT3991IMSE-5#PBF | LT3991IMSE-5#TRPBF | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| RoHS | Compliant | Compliant | Compliant | Compliant | Compliant | Compliant | Compliant | Compliant | Compliant | Compliant | Compliant | Compliant | Compliant | Compliant | Compliant | Compliant |
Model Line
Series: LT3991 (16)
Manufacturer's Classification
- Power Management > Internal Power Switch Buck Regulators | High Input Voltage Buck Regulators | Micropower Buck Regulators
