Texas Instruments LM51551DSST Microcontrollers
2.2-MHz wide VIN nonsynchronous boost, flyback, & SEPIC controller with hiccup 12-WSON -40 to 125
Same model may have multiple batches, images only for reference.
Manufacturer
Part Number (MPN)
LM51551DSST
Detailed Description
2.2-MHz wide VIN nonsynchronous boost, flyback, & SEPIC controller with hiccup 12-WSON -40 to 125
Package
12-WFDFN Exposed Pad
Lifecycle Status
Active
Datasheet
LM51551DSST Datasheet
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Technical Specifications
Texas Instruments LM51551DSST Microcontrollers technical specifications.
General
Package / Case
12-WFDFN Exposed Pad
Mounting Type
Surface Mount
Operating Temperature
-40°C ~ 125°C (TJ)
Supply Voltage
2.97V ~ 45V
Output Type
Transistor Driver
Switching Frequency
100kHz ~ 2.2MHz
Number of Outputs
1
Topology
Boost, Flyback, SEPIC
Control Features
Soft Start
Output Configuration
Positive
Alternate Parts Comparison (LM51551DSST vs LM3553SD/NOPB vs LM5160ADNTJ vs LM34919CQSD/NOPB)
Side-by-side technical parameter comparison of related primary models in this product family.
| This Part | Alternate Parts | Alternate Parts | Alternate Parts | |
|---|---|---|---|---|
| Package / Case | 12-WFDFN Exposed Pad | 12-WFDFN Exposed Pad | 12-WFDFN Exposed Pad | 12-WFDFN Exposed Pad |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Operating Temperature | -40°C ~ 125°C (TJ) | -30°C ~ 85°C (TA) | -40°C ~ 125°C (TJ) | -40°C ~ 125°C (TJ) |
| Number of Outputs | 1 | 1 | 1 | 1 |
| Topology | Boost, Flyback, SEPIC | Step-Up (Boost) | Buck, Flyback | Buck |
| Switching Frequency | 100kHz ~ 2.2MHz | -- | Adj to 1MHz | 2.6MHz |
| Function | Step-Up, Step-Up/Step-Down | -- | Step-Down | Step-Down |
| Output Configuration | Positive | -- | Positive, Isolation Capable | Positive |
| Output Type | Transistor Driver | -- | Adjustable | Adjustable |
| Synchronous Rectifier | No | -- | Yes | No |
| Action |
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