Texas Instruments LM25149QRGYRQ1 DC DC Switching Controllers
42-V automotive synchronous buck DC/DC controller with ultra-low IQ and integrated active EMI filter
Same model may have multiple batches, images only for reference.
Manufacturer
Part Number (MPN)
LM25149QRGYRQ1
Detailed Description
42-V automotive synchronous buck DC/DC controller with ultra-low IQ and integrated active EMI filter
Package
24-VFQFN Exposed Pad
Key Features
Package / Case: 24-VFQFN Exposed Pad
Lifecycle Status
Active
RoHS State
RoHS Compliant
Datasheet
LM25149QRGYRQ1 Datasheet
Quick Jump:
Technical Specifications
Texas Instruments LM25149QRGYRQ1 DC DC Switching Controllers technical specifications.
General
Series
Automotive, AEC-Q100
RoHS
Yes
Package / Case
24-VFQFN Exposed Pad
Operating Temperature
-40°C ~ 150°C (TJ)
Supply Voltage
3.5V ~ 42V
Lifecycle Status
Active
Functions
Step-Down
Topology
Buck
Output Type
Transistor Driver
Number of Outputs
1
Alternate Parts Comparison (LM25149QRGYRQ1 vs LM5141QRGETQ1 vs LM5141RGER vs LM5141QURGERQ1)
Side-by-side technical parameter comparison of related primary models in this product family.
| This Part | Alternate Parts | Alternate Parts | Alternate Parts | |
|---|---|---|---|---|
| Package / Case | 24-VFQFN Exposed Pad | 24-VFQFN Exposed Pad | 24-VFQFN Exposed Pad | 24-VFQFN Exposed Pad |
| Operating Temperature | -40°C ~ 150°C (TJ) | -40°C ~ 150°C (TJ) | -40°C ~ 150°C (TJ) | -40°C ~ 150°C (TJ) |
| Supply Voltage | 3.5V ~ 42V | 3.8V ~ 65V | 3.8V ~ 65V | 3.8V ~ 65V |
| Switching Frequency | 100kHz ~ 2.2MHz | 440kHz, 2.2MHz | 440kHz, 2.2MHz | 440kHz, 2.2MHz |
| RoHS | Yes | Yes | Yes | Yes |
| Lifecycle Status | Active | Active | Active | Active |
| Clock Sync | No | No | No | Yes |
| Control Features | Current Limit, Dead Time Control, Enable, Frequency Control, Phase Control, Power Good, Pulse Skipping, Ramp, Slew Control, Soft Start | Current Limit, Enable, Frequency Control, Power Good, Soft Start | Current Limit, Enable, Frequency Control, Power Good, Soft Start | Current Limit, Enable, Frequency Control, Power Good, Soft Start |
| Control Mode | current mode | current mode | current mode | current mode |
| Emi Features | Active EMI filter, Spread Spectrum | Spread Spectrum | Spread Spectrum | Spread Spectrum |
| Iq Typ Ma | 0.0095 | 0.035 | 0.035 | 0.035 |
| Number of Outputs | 1 | 1 | 1 | 1 |
| 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
NCV891930MW01AR2GonsemiSimilaronsemi
Pin NoPkg NoElec Mixed
Buck Regulator Positive Output Step-Down DC-DC Controller IC 24-QFNW (4x4)
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.
