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
Quick Jump:
Technical Specifications
Texas Instruments LM51551DSST Microcontrollers technical specifications.
General
RoHS
Yes
Package / Case
12-WFDFN Exposed Pad
Mounting Type
Surface Mount
Operating Temperature
-40°C ~ 125°C (TJ)
Supply Voltage
2.97V ~ 45V
Lifecycle Status
Active
Output Type
Transistor Driver
Switching Frequency
100kHz ~ 2.2MHz
Number of Outputs
1
Topology
Boost, Flyback, SEPIC
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) |
| RoHS | Yes | Yes | Yes | Yes |
| Lifecycle Status | Active | Active | Active | Active |
| Number of Outputs | 1 | 1 | 1 | 1 |
| Operating Temperature Range C | -40 to 125 | -30 to 85 | -40 to 125 | -40 to 125 |
| Package | WSON-12 | WFDFN-12 | WFDFN-12 | WFDFN-12 |
| Topology | Boost, Flyback, SEPIC | Step-Up (Boost) | Buck, Flyback | Buck |
| Vin Max V | 45 | 5.5 | 65 | 50 |
| Vin Min V | 1.5 | 2.7 | 4.5 | 4.5 |
| Vout Max V | 300 | 5.5 | 60 | 45 |
| Action |
More Parts in Microcontrollers
Browse additional parts from the same category, grouped by series, package type, and manufacturer. These are catalog suggestions — not verified pin-compatible alternates.
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LM34919CQSD/NOPBTexas InstrumentsAutomotive 4.5-50V Wide Vin 600mA 2.6MHz Ultra-Small Constant On-Time Non-Synchronous Buck Regulator 12-WSON -40 to 125