Datasheet Texas Instruments LM5140-Q1
| Manufacturer | Texas Instruments |
| Series | LM5140-Q1 |
Wide Vin Dual 2.2MHz low Iq Synchronous Buck Controller
Datasheets
LM5140-Q1 Wide Input Range Dual Synchronous Buck Controller datasheet
PDF, 3.1 Mb, Revision: A, File published: Dec 20, 2016
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Prices
Status
| LM5140QRWGRQ1 | LM5140QRWGTQ1 | |
|---|---|---|
| Lifecycle Status | Active (Recommended for new designs) | Active (Recommended for new designs) |
| Manufacture's Sample Availability | Yes | No |
Packaging
| LM5140QRWGRQ1 | LM5140QRWGTQ1 | |
|---|---|---|
| N | 1 | 2 |
| Pin | 40 | 40 |
| Package Type | RWG | RWG |
| Industry STD Term | VQFNP | VQFNP |
| JEDEC Code | S-PQFP-N | S-PQFP-N |
| Package QTY | 2500 | 250 |
| Carrier | LARGE T&R | SMALL T&R |
| Device Marking | RWGQ1 | RWGQ1 |
| Width (mm) | 6 | 6 |
| Length (mm) | 6 | 6 |
| Thickness (mm) | .85 | .85 |
| Pitch (mm) | .5 | .5 |
| Max Height (mm) | .9 | .9 |
| Mechanical Data | Download | Download |
Parametrics
| Parameters / Models | LM5140QRWGRQ1 | LM5140QRWGTQ1 |
|---|---|---|
| Control Mode | Current Mode | Current Mode |
| Duty Cycle(Max), % | 78 | 78 |
| Iout(Max), A | 40 | 40 |
| Iq(Typ), mA | 0.035 | 0.035 |
| Number of Phases | 1 | 1 |
| Operating Temperature Range, C | -40 to 150 | -40 to 150 |
| Package Group | VQFNP | VQFNP |
| Rating | Automotive | Automotive |
| Regulated Outputs | 2 | 2 |
| Special Features | Adjustable Current Limit,Enable,Frequency Synchronization,Light Load Efficiency,Phase Interleaving,Power Good,Synchronous Rectification | Adjustable Current Limit,Enable,Frequency Synchronization,Light Load Efficiency,Phase Interleaving,Power Good,Synchronous Rectification |
| Switching Frequency(Max), kHz | 2600 | 2600 |
| Switching Frequency(Min), kHz | 350 | 350 |
| Type | Controller | Controller |
| Vin(Max), V | 65 | 65 |
| Vin(Min), V | 3.8 | 3.8 |
| Vout(Max), V | 15 | 15 |
| Vout(Min), V | 1.5 | 1.5 |
Eco Plan
| LM5140QRWGRQ1 | LM5140QRWGTQ1 | |
|---|---|---|
| RoHS | Compliant | Compliant |
Application Notes
- Maintaining Output Voltage Regulation During Automotive Cold-Crank with LM5140PDF, 253 Kb, File published: Jan 13, 2016
Designing electronics to operate from a 12-V car supply is challenging. The 12-V battery supply voltage can range from 9-16V under normal operation depending on charge and load variation. However, the transient battery voltage range can be much wider. One of these conditions is cold-crank, cold-crank occurs when the battery is trying to energize the starter-motor circuits on th - Designing the front-end DC/DC conversion stage to withstand automotive transientPDF, 336 Kb, File published: Jan 18, 2017
- Reduce buck-converter EMI and voltage stress by minimizing inductive parasiticsPDF, 926 Kb, File published: Jul 21, 2016
Model Line
Series: LM5140-Q1 (2)
Manufacturer's Classification
- Semiconductors> Power Management> Non-isolated DC/DC Switching Regulator> Step-Down (Buck)> Buck Controller (External Switch)
