Datasheet Texas Instruments LM25085-Q1
| Manufacturer | Texas Instruments |
| Series | LM25085-Q1 |
Automotive Grade 4.5-42V Wide Vin, Constant On-Time Non-Synchronous PFET Buck Controller
Datasheets
LM25085 / -Q1 42V Constant On-Time PFET Buck Switching Controller datasheet
PDF, 1.7 Mb, Revision: J, File published: Nov 3, 2014
Extract from the document
Prices
Status
| LM25085QMY/NOPB | LM25085QMYE/NOPB | LM25085QMYX/NOPB | |
|---|---|---|---|
| Lifecycle Status | Active (Recommended for new designs) | Active (Recommended for new designs) | Active (Recommended for new designs) |
| Manufacture's Sample Availability | Yes | Yes | Yes |
Packaging
| LM25085QMY/NOPB | LM25085QMYE/NOPB | LM25085QMYX/NOPB | |
|---|---|---|---|
| N | 1 | 2 | 3 |
| Pin | 8 | 8 | 8 |
| Package Type | DGN | DGN | DGN |
| Industry STD Term | HVSSOP | HVSSOP | HVSSOP |
| JEDEC Code | S-PDSO-G | S-PDSO-G | S-PDSO-G |
| Package QTY | 1000 | 250 | 3500 |
| Carrier | SMALL T&R | SMALL T&R | LARGE T&R |
| Device Marking | SYLB | SYLB | SYLB |
| Width (mm) | 3 | 3 | 3 |
| Length (mm) | 3 | 3 | 3 |
| Thickness (mm) | 1.02 | 1.02 | 1.02 |
| Pitch (mm) | .65 | .65 | .65 |
| Max Height (mm) | 1.1 | 1.1 | 1.1 |
| Mechanical Data | Download | Download | Download |
Parametrics
| Parameters / Models | LM25085QMY/NOPB | LM25085QMYE/NOPB | LM25085QMYX/NOPB |
|---|---|---|---|
| Control Mode | Constant on-time (COT) | Constant on-time (COT) | Constant on-time (COT) |
| Duty Cycle(Max), % | 100 | 100 | 100 |
| Iout(Max), A | 10 | 10 | 10 |
| Iq(Typ), mA | 1.25 | 1.25 | 1.25 |
| Number of Phases | 1 | 1 | 1 |
| Operating Temperature Range, C | -40 to 125 | -40 to 125 | -40 to 125 |
| Package Group | MSOP-PowerPAD | MSOP-PowerPAD | MSOP-PowerPAD |
| Rating | Automotive | Automotive | Automotive |
| Regulated Outputs | 1 | 1 | 1 |
| Special Features | Adjustable Current Limit,Frequency Synchronization | Adjustable Current Limit,Frequency Synchronization | Adjustable Current Limit,Frequency Synchronization |
| Switching Frequency(Max), kHz | 1000 | 1000 | 1000 |
| Switching Frequency(Min), kHz | 50 | 50 | 50 |
| Type | Controller | Controller | Controller |
| Vin(Max), V | 42 | 42 | 42 |
| Vin(Min), V | 4.5 | 4.5 | 4.5 |
| Vout(Max), V | 42 | 42 | 42 |
| Vout(Min), V | 1.25 | 1.25 | 1.25 |
Eco Plan
| LM25085QMY/NOPB | LM25085QMYE/NOPB | LM25085QMYX/NOPB | |
|---|---|---|---|
| RoHS | Compliant | Compliant | Compliant |
Application Notes
- Constant Current Constant Voltage Buck Converter w/LM25085 (Rev. A)PDF, 377 Kb, Revision: A, File published: Apr 23, 2013
In many applications, a constant-current constant-voltage (CC/CV) dc source is needed. The I-Vcharacteristic of a constant-current constant-voltage (CC/CV) source is shown in Figure 1. This applicationreport presents an external op-amp based accurate current limit circuit suitable for CC/CV operation whenthe required constant current range is very narrow.
Model Line
Series: LM25085-Q1 (3)
Manufacturer's Classification
- Semiconductors> Power Management> Non-isolated DC/DC Switching Regulator> Step-Down (Buck)> Buck Controller (External Switch)
