Texas Instruments LM51551QDSSRQ1 DC DC Switching Controllers
IC POWER MANAGEMENT
Same model may have multiple batches, images only for reference.
Manufacturer
Part Number (MPN)
LM51551QDSSRQ1
Detailed Description
IC POWER MANAGEMENT
Package
12-WFDFN Exposed Pad
Key Features
Package / Case: 12-WFDFN Exposed Pad; Mounting Type: Surface Mount, Wettable Flank
Lifecycle Status
Active
RoHS State
RoHS Compliant
Datasheet
LM51551QDSSRQ1 Datasheet
Quick Jump:
Technical Specifications
Texas Instruments LM51551QDSSRQ1 DC DC Switching Controllers technical specifications.
General
RoHS
Yes
Package / Case
12-WFDFN Exposed Pad
Mounting Type
Surface Mount, Wettable Flank
Operating Temperature
-40°C ~ 150°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 (LM51551QDSSRQ1 vs LM3S1332-EQC50-A2T vs LM3S1435-EQC50-A2 vs LM3S2533-EQC50-A2)
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 | 100-LQFP | 100-LQFP | 100-LQFP |
| Mounting Type | Surface Mount, Wettable Flank | Surface Mount | Surface Mount | Surface Mount |
| Operating Temperature | -40°C ~ 150°C (TJ) | -40°C ~ 105°C (TA) | -40°C ~ 105°C (TA) | -40°C ~ 105°C (TA) |
| Supply Voltage | 2.97V ~ 45V | 2.25V ~ 2.75V | 2.25V ~ 2.75V | 2.25V ~ 2.75V |
| RoHS | Yes | Yes | Yes | Yes |
| Lifecycle Status | Active | Obsolete | Obsolete | Obsolete |
| Package | WFDFN-12 | LQFP | LQFP | LQFP |
| Series | -- | Stellaris® ARM® Cortex®-M3S 1000 | Stellaris® ARM® Cortex®-M3S 1000 | Stellaris® ARM® Cortex®-M3S 2000 |
| Data Bus Width | -- | 32bit | 32bit | 32bit |
| Number of Pins | -- | 100 | 100 | 100 |
| Core Processor | -- | ARM® Cortex®-M3 | ARM® Cortex®-M3 | ARM® Cortex®-M3 |
| Core Size | -- | 32-Bit Single-Core | 32-Bit Single-Core | 32-Bit Single-Core |
| Action |
Cross Reference
Manufacturer-stated alternates from official cross-reference tools. These are not a guaranteed pin-compatible drop-in. Qualify package, pinout, and electrical limits against the datasheet before a board change. See cross-reference vs drop-in compatible .
Suggested replacements
NCV887302D1R2GonsemiSimilaronsemi
Pin NoPkg NoElec Mixed
Boost Regulator Positive Output Step-Up DC-DC Controller IC 8-SOIC
More Parts in DC DC Switching Controllers
Browse additional parts from the same category, grouped by series, package type, and manufacturer. These are catalog suggestions — not verified pin-compatible alternates.
