LT1945EMS#TRPBF
ActiveDC/DC SWITCHING REGULATOR, BOOST, INVERTING, 2 OUTPUT, 1.2 TO 15V IN, 34/-34V/MSOP-10
Deep-Dive with AI
Search across all available documentation for this part.
LT1945EMS#TRPBF
ActiveDC/DC SWITCHING REGULATOR, BOOST, INVERTING, 2 OUTPUT, 1.2 TO 15V IN, 34/-34V/MSOP-10
Deep-Dive with AI
Technical Specifications
Parameters and characteristics for this part
| Specification | LT1945EMS#TRPBF |
|---|---|
| Current - Output | 250 mA |
| Function | Step-Up, Step-Up/Step-Down |
| Mounting Type | Surface Mount |
| Number of Outputs | 2 |
| Operating Temperature [Max] | 70 °C |
| Operating Temperature [Min] | 0 °C |
| Output Configuration | Positive and Negative (Dual Rail) |
| Output Type | Adjustable |
| Package / Case | 10-MSOP, 10-TFSOP |
| Package / Case [x] | 3 mm |
| Package / Case [x] | 0.118 in |
| Supplier Device Package | 10-MSOP |
| Synchronous Rectifier | False |
| Topology | SEPIC, Boost |
| Voltage - Input (Max) [Max] | 15 V |
| Voltage - Input (Min) [Min] | 1.2 V |
| Voltage - Output (Max) | 34 V |
| Voltage - Output (Min/Fixed) | 1.23 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Cut Tape (CT) | 1 | $ 7.81 | |
| 10 | $ 5.34 | |||
| 25 | $ 4.71 | |||
| 100 | $ 3.99 | |||
| 250 | $ 3.65 | |||
| 500 | $ 3.44 | |||
| 1000 | $ 3.26 | |||
| Digi-Reel® | 1 | $ 7.81 | ||
| 10 | $ 5.34 | |||
| 25 | $ 4.71 | |||
| 100 | $ 3.99 | |||
| 250 | $ 3.65 | |||
| 500 | $ 3.44 | |||
| 1000 | $ 3.26 | |||
| Tape & Reel (TR) | 2500 | $ 3.11 | ||
| Newark | Each (Supplied on Cut Tape) | 1 | $ 6.83 | |
| 10 | $ 4.71 | |||
| 25 | $ 4.47 | |||
| 50 | $ 4.24 | |||
| 100 | $ 4.00 | |||
| 250 | $ 3.65 | |||
| 500 | $ 3.44 | |||
| 1000 | $ 3.27 | |||
Description
General part information
LT1945 Series
The LT1945 is a dual micropower DC/DC converter in a 10-pin MSOP package. Each converter is designed with a 350mA current limit and an input voltage range of 1.2V to 15V, making the LT1945 ideal for a wide variety of applications. Both converters feature a quiescent current of only 20µA at no load, which further reduces to 0.5µA in shutdown. A current limited, fixed off-time control scheme conserves operating current, resulting in high efficiency over a broad range of load current. The 36V switch allows high voltage outputs up to ±34V to be easily generated without the use of costly transformers. The LT1945’s low off-time of 400ns permits the use of tiny, low profile inductors and capacitors to minimize footprint and cost in space-conscious portable applications.ApplicationsSmall TFT LCD PanelsHandheld ComputersBattery BackupDigital Cameras
Documents
Technical documentation and resources