LT1946EMS8E#TRPBF
Active1.2MHZ BOOST DC/DC CONVERTER WITH 1.5A SWITCH AND SOFT-START
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LT1946EMS8E#TRPBF
Active1.2MHZ BOOST DC/DC CONVERTER WITH 1.5A SWITCH AND SOFT-START
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Technical Specifications
Parameters and characteristics for this part
| Specification | LT1946EMS8E#TRPBF |
|---|---|
| Current - Output | 1.5 A |
| Frequency - Switching | 1.2 MHz |
| Function | Step-Up |
| Mounting Type | Surface Mount |
| Number of Outputs | 1 |
| Operating Temperature [Max] | 70 °C |
| Operating Temperature [Min] | 0 °C |
| Output Configuration | Positive |
| Output Type | Adjustable |
| Package / Case | Exposed Pad, 8-TSSOP, 8-MSOP |
| Package / Case [custom] | 0.118 in, 3 mm |
| Supplier Device Package | 8-MSOP-EP |
| Synchronous Rectifier | False |
| Topology | Boost |
| Voltage - Input (Max) [Max] | 16 V |
| Voltage - Input (Min) [Min] | 2.45 V |
| Voltage - Output (Max) [Max] | 34 V |
| Voltage - Output (Min/Fixed) | 2.45 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Tape & Reel (TR) | 2500 | $ 2.74 | |
Description
General part information
LT1946 Series
The LT1946 is a fixed frequency step-up DC/DC converter containing an internal 1.5A, 36V switch. Capable of generating 8V at 430mA from a 3.3V input, the LT1946 is ideal for large TFT-LCD panel power supplies. The LT1946 switches at 1.2MHz, allowing the use of tiny, low profile inductors and low value ceramic capacitors. Loop compensation can be either internal or external, giving the user flexibility in setting loop compensation and allowing optimized transient response with low ESR ceramic output capacitors. Soft-start is controlled with an external capacitor, which determines the input current ramp rate during start-up.The 8-lead MSOP package and high switching frequency ensure a low profile overall solution less than 1.2mm high.Switching FrequencyLT19461.2MHzLT1946A2.7MHzApplicationsTFT-LCD Bias SuppliesGPS ReceiversDSL ModemsLocal Power Supplies
Documents
Technical documentation and resources