LM51551QDSSRQ1
Active2.2-MHZ WIDE VIN, 1.5-A MOSFET DRIVER, NON-SYNCHRONOUS BOOST CONTROLLER, HICCUP MODE PROTECTION
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LM51551QDSSRQ1
Active2.2-MHZ WIDE VIN, 1.5-A MOSFET DRIVER, NON-SYNCHRONOUS BOOST CONTROLLER, HICCUP MODE PROTECTION
Technical Specifications
Parameters and characteristics for this part
| Specification | LM51551QDSSRQ1 |
|---|---|
| Clock Sync | True |
| Control Features | Soft Start |
| Duty Cycle (Max) [Max] | 93 % |
| Frequency - Switching [Max] | 2.2 MHz |
| Frequency - Switching [Min] | 100 kHz |
| Function | Step-Up, Step-Up/Step-Down |
| Grade | Automotive |
| Mounting Type | Wettable Flank, Surface Mount |
| Number of Outputs | 1 |
| Operating Temperature [Max] | 150 °C |
| Operating Temperature [Min] | -40 °C |
| Output Configuration | Positive |
| Output Phases | 1 |
| Output Type | Transistor Driver |
| Package / Case | 12-WFDFN Exposed Pad |
| Qualification | AEC-Q100 |
| Supplier Device Package | 12-WSON (3x2) |
| Synchronous Rectifier | False |
| Topology | Flyback, SEPIC, Boost |
| Voltage - Supply (Vcc/Vdd) [Max] | 45 V |
| Voltage - Supply (Vcc/Vdd) [Min] | 2.97 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 | $ 2.46 | |
| 10 | $ 2.21 | |||
| 25 | $ 2.08 | |||
| 100 | $ 1.77 | |||
| 250 | $ 1.66 | |||
| 500 | $ 1.46 | |||
| 1000 | $ 1.21 | |||
| Digi-Reel® | 1 | $ 2.46 | ||
| 10 | $ 2.21 | |||
| 25 | $ 2.08 | |||
| 100 | $ 1.77 | |||
| 250 | $ 1.66 | |||
| 500 | $ 1.46 | |||
| 1000 | $ 1.21 | |||
| Tape & Reel (TR) | 3000 | $ 1.12 | ||
| 6000 | $ 1.08 | |||
| Texas Instruments | LARGE T&R | 1 | $ 1.94 | |
| 100 | $ 1.60 | |||
| 250 | $ 1.15 | |||
| 1000 | $ 0.86 | |||
Description
General part information
LM51551-Q1 Series
The LM5155x-Q1 (LM5155-Q1 and LM51551-Q1) is a wide input range, non-synchronous boost controller that uses peak current mode control. The device can be used in boost, SEPIC, and flyback topologies.
The LM5155x-Q1 can start up from a 1-cell battery with a minimum of 2.97 V if the BIAS pin is connected to the VCC pin. It can operate with the input supply voltage as low as 1.5 V if the BIAS pin is greater than 3.5 V.
The LM5155x-Q1 (LM5155-Q1 and LM51551-Q1) is a wide input range, non-synchronous boost controller that uses peak current mode control. The device can be used in boost, SEPIC, and flyback topologies.
Documents
Technical documentation and resources
