Datasheet Texas Instruments LM25115
| Manufacturer | Texas Instruments |
| Series | LM25115 |
42V, Secondary Side Post Regulator/Synchronous Buck Controller
Datasheets
LM25115 Secondary Side Post Regulator Controller datasheet
PDF, 978 Kb, Revision: A, File published: Apr 1, 2013
Extract from the document
Prices
Status
| LM25115MT/NOPB | LM25115MTX/NOPB | LM25115SDX/NOPB | |
|---|---|---|---|
| Lifecycle Status | Active (Recommended for new designs) | Active (Recommended for new designs) | Active (Recommended for new designs) |
| Manufacture's Sample Availability | Yes | No | Yes |
Packaging
| LM25115MT/NOPB | LM25115MTX/NOPB | LM25115SDX/NOPB | |
|---|---|---|---|
| N | 1 | 2 | 3 |
| Pin | 16 | 16 | 16 |
| Package Type | PW | PW | NHQ |
| Industry STD Term | TSSOP | TSSOP | WSON |
| JEDEC Code | R-PDSO-G | R-PDSO-G | S-PDSO-N |
| Package QTY | 92 | 2500 | 4500 |
| Carrier | TUBE | LARGE T&R | LARGE T&R |
| Device Marking | MT | MT | L25115 |
| Width (mm) | 4.4 | 4.4 | 5 |
| Length (mm) | 5 | 5 | 5 |
| Thickness (mm) | 1 | 1 | .8 |
| Pitch (mm) | .65 | .65 | .5 |
| Max Height (mm) | 1.2 | 1.2 | .8 |
| Mechanical Data | Download | Download | Download |
Parametrics
| Parameters / Models | LM25115MT/NOPB | LM25115MTX/NOPB | LM25115SDX/NOPB |
|---|---|---|---|
| Control Method | Current,Voltage | Current,Voltage | Current,Voltage |
| Duty Cycle(Max), % | 85 | 85 | 85 |
| Frequency(Max), kHz | 1000 | 1000 | 1000 |
| Frequency(Min), kHz | 50 | 50 | 50 |
| Gate Drive(Typ), A | 2.5 | 2.5 | 2.5 |
| Operating Temperature Range, C | -40 to 125 | -40 to 125 | -40 to 125 |
| Package Group | TSSOP | TSSOP | WSON |
| Rating | Catalog | Catalog | Catalog |
| Special Features | Frequency Synchronization,Soft Start,Synchronization Pin,Thermal Shutdown | Frequency Synchronization,Soft Start,Synchronization Pin,Thermal Shutdown | Frequency Synchronization,Soft Start,Synchronization Pin,Thermal Shutdown |
| Topology | Synchronous secondary-side post-regulator | Synchronous secondary-side post-regulator | Synchronous secondary-side post-regulator |
| UVLO Thresholds On/Off, V | 4.15/4.0 | 4.15/4.0 | 4.15/4.0 |
| Vin(Max), V | 42 | 42 | 42 |
| Vin(Min), V | 4.5 | 4.5 | 4.5 |
Eco Plan
| LM25115MT/NOPB | LM25115MTX/NOPB | LM25115SDX/NOPB | |
|---|---|---|---|
| RoHS | Compliant | Compliant | Compliant |
Application Notes
- Minimizing FET Losses For a High Input Rail Buck Converter (Rev. A)PDF, 168 Kb, Revision: A, File published: Apr 23, 2013
Engineers often face the challenge of choosing the input voltage rail that works best for the DC-DCconverter at the point-of-load (POL). High voltage rails, above 12 V, usually demand intermediateregulation stages that reduce overall efficiency and add to cost. However, the new generation of regulatorand controller ICs afford POL regulation from these high input rails directly. Typically the - Reduce buck-converter EMI and voltage stress by minimizing inductive parasiticsPDF, 926 Kb, File published: Jul 21, 2016
Model Line
Series: LM25115 (3)
Manufacturer's Classification
- Semiconductors> Power Management> Offline and Isolated DC/DC Controllers and Converters> PWM and Resonant Controller
