Datasheet Texas Instruments LM5085
| Manufacturer | Texas Instruments |
| Series | LM5085 |
4.5-75V Wide Vin, Constant On-Time Non-Synchronous PFET Buck Controller
Datasheets
LM5085/-Q1 75-V Constant On-Time PFET Buck Switching Controller datasheet
PDF, 1.6 Mb, Revision: I, File published: Aug 12, 2015
Extract from the document
Prices
Status
| LM5085MM/NOPB | LM5085MME/NOPB | LM5085MMX/NOPB | LM5085MY/NOPB | LM5085MYE/NOPB | LM5085MYX/NOPB | LM5085SD/NOPB | LM5085SDE/NOPB | LM5085SDX/NOPB | |
|---|---|---|---|---|---|---|---|---|---|
| Lifecycle Status | Active (Recommended for new designs) | Active (Recommended for new designs) | Active (Recommended for new designs) | Active (Recommended for new designs) | Active (Recommended for new designs) | Active (Recommended for new designs) | Active (Recommended for new designs) | Active (Recommended for new designs) | Active (Recommended for new designs) |
| Manufacture's Sample Availability | Yes | No | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
Packaging
| LM5085MM/NOPB | LM5085MME/NOPB | LM5085MMX/NOPB | LM5085MY/NOPB | LM5085MYE/NOPB | LM5085MYX/NOPB | LM5085SD/NOPB | LM5085SDE/NOPB | LM5085SDX/NOPB | |
|---|---|---|---|---|---|---|---|---|---|
| N | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |
| Pin | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 |
| Package Type | DGK | DGK | DGK | DGN | DGN | DGN | NGQ | NGQ | NGQ |
| Industry STD Term | VSSOP | VSSOP | VSSOP | HVSSOP | HVSSOP | HVSSOP | WSON | WSON | WSON |
| JEDEC Code | R-PDSO-G | R-PDSO-G | R-PDSO-G | S-PDSO-G | S-PDSO-G | S-PDSO-G | S-PDSO-N | S-PDSO-N | S-PDSO-N |
| Package QTY | 1000 | 250 | 3500 | 1000 | 250 | 3500 | 1000 | 250 | 4500 |
| Carrier | SMALL T&R | SMALL T&R | LARGE T&R | SMALL T&R | SMALL T&R | LARGE T&R | SMALL T&R | SMALL T&R | LARGE T&R |
| Device Marking | SSTB | SSTB | SSTB | SSSB | SSSB | SSSB | L245B | L245B | L245B |
| Width (mm) | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 |
| Length (mm) | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 |
| Thickness (mm) | .97 | .97 | .97 | 1.02 | 1.02 | 1.02 | .8 | .8 | .8 |
| Pitch (mm) | .65 | .65 | .65 | .65 | .65 | .65 | .5 | .5 | .5 |
| Max Height (mm) | 1.07 | 1.07 | 1.07 | 1.1 | 1.1 | 1.1 | .8 | .8 | .8 |
| Mechanical Data | Download | Download | Download | Download | Download | Download | Download | Download | Download |
Parametrics
| Parameters / Models | LM5085MM/NOPB | LM5085MME/NOPB | LM5085MMX/NOPB | LM5085MY/NOPB | LM5085MYE/NOPB | LM5085MYX/NOPB | LM5085SD/NOPB | LM5085SDE/NOPB | LM5085SDX/NOPB |
|---|---|---|---|---|---|---|---|---|---|
| Control Mode | Constant on-time (COT) | Constant on-time (COT) | Constant on-time (COT) | Constant on-time (COT) | Constant on-time (COT) | Constant on-time (COT) | Constant on-time (COT) | Constant on-time (COT) | Constant on-time (COT) |
| Duty Cycle(Max), % | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 |
| Iout(Max), A | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 |
| Iq(Typ), mA | 1.3 | 1.3 | 1.3 | 1.3 | 1.3 | 1.3 | 1.3 | 1.3 | 1.3 |
| Number of Phases | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Operating Temperature Range, C | -40 to 125 | -40 to 125 | -40 to 125 | -40 to 125 | -40 to 125 | -40 to 125 | -40 to 125 | -40 to 125 | -40 to 125 |
| Package Group | VSSOP | VSSOP | VSSOP | MSOP-PowerPAD | MSOP-PowerPAD | MSOP-PowerPAD | WSON | WSON | WSON |
| Rating | Catalog | Catalog | Catalog | Catalog | Catalog | Catalog | Catalog | Catalog | Catalog |
| Regulated Outputs | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Special Features | Adjustable Current Limit,Enable,Frequency Synchronization | Adjustable Current Limit,Enable,Frequency Synchronization | Adjustable Current Limit,Enable,Frequency Synchronization | Adjustable Current Limit,Enable,Frequency Synchronization | Adjustable Current Limit,Enable,Frequency Synchronization | Adjustable Current Limit,Enable,Frequency Synchronization | Adjustable Current Limit,Enable,Frequency Synchronization | Adjustable Current Limit,Enable,Frequency Synchronization | Adjustable Current Limit,Enable,Frequency Synchronization |
| Switching Frequency(Max), kHz | 1000 | 1000 | 1000 | 1000 | 1000 | 1000 | 1000 | 1000 | 1000 |
| Switching Frequency(Min), kHz | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 |
| Type | Controller | Controller | Controller | Controller | Controller | Controller | Controller | Controller | Controller |
| Vin(Max), V | 75 | 75 | 75 | 75 | 75 | 75 | 75 | 75 | 75 |
| Vin(Min), V | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 |
| Vout(Max), V | 75 | 75 | 75 | 75 | 75 | 75 | 75 | 75 | 75 |
| Vout(Min), V | 1.25 | 1.25 | 1.25 | 1.25 | 1.25 | 1.25 | 1.25 | 1.25 | 1.25 |
Eco Plan
| LM5085MM/NOPB | LM5085MME/NOPB | LM5085MMX/NOPB | LM5085MY/NOPB | LM5085MYE/NOPB | LM5085MYX/NOPB | LM5085SD/NOPB | LM5085SDE/NOPB | LM5085SDX/NOPB | |
|---|---|---|---|---|---|---|---|---|---|
| RoHS | Compliant | Compliant | Compliant | Compliant | Compliant | Compliant | 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. - Designing Non-Invert Buck-Boost (Zeta) Cnvrts w/a Buck P-FET CntrlPDF, 299 Kb, File published: Apr 22, 2011
- Transient Response versus Ripple – An Analysis of Ripple Injection TechniquesPDF, 2.9 Mb, File published: Apr 28, 2014
In this application note the implications of ripple injection techniques, aimed at minimizingoutput ripple voltage, on the transient response of a supply are highlighted. The results help choose a suitable ripple injection technique after striking a balance between the output ripple voltage and the transient response required by the load. - Reduce buck-converter EMI and voltage stress by minimizing inductive parasiticsPDF, 926 Kb, File published: Jul 21, 2016
Model Line
Series: LM5085 (9)
Manufacturer's Classification
- Semiconductors> Power Management> Non-isolated DC/DC Switching Regulator> Step-Down (Buck)> Buck Controller (External Switch)
