Datasheet Texas Instruments LM27403
| Manufacturer | Texas Instruments |
| Series | LM27403 |
3-20V, Voltage Mode Synchronous Buck Controller with Temperature-Compensated DCR Current Sensing
Datasheets
LM27403 Synchronous Buck Controller With Temperature-Compensated, Inductor-DCR-Based Overcurrent Protection and Programmable Thermal Shutdown datasheet
PDF, 1.8 Mb, Revision: B, File published: Sep 12, 2014
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Prices
Status
| LM27403SQ/NOPB | LM27403SQE/NOPB | LM27403SQX/NOPB | |
|---|---|---|---|
| Lifecycle Status | Active (Recommended for new designs) | Active (Recommended for new designs) | Active (Recommended for new designs) |
| Manufacture's Sample Availability | No | No | Yes |
Packaging
| LM27403SQ/NOPB | LM27403SQE/NOPB | LM27403SQX/NOPB | |
|---|---|---|---|
| N | 1 | 2 | 3 |
| Pin | 24 | 24 | 24 |
| Package Type | RTW | RTW | RTW |
| Industry STD Term | WQFN | WQFN | WQFN |
| JEDEC Code | S-PQFP-N | S-PQFP-N | S-PQFP-N |
| Package QTY | 1000 | 250 | 4500 |
| Carrier | LARGE T&R | SMALL T&R | LARGE T&R |
| Device Marking | L27403 | L27403 | L27403 |
| Width (mm) | 4 | 4 | 4 |
| Length (mm) | 4 | 4 | 4 |
| Thickness (mm) | .75 | .75 | .75 |
| Pitch (mm) | .5 | .5 | .5 |
| Max Height (mm) | .8 | .8 | .8 |
| Mechanical Data | Download | Download | Download |
Parametrics
| Parameters / Models | LM27403SQ/NOPB | LM27403SQE/NOPB | LM27403SQX/NOPB |
|---|---|---|---|
| Control Mode | Voltage Mode | Voltage Mode | Voltage Mode |
| Duty Cycle(Max), % | 93 | 93 | 93 |
| Iout(Max), A | 30 | 30 | 30 |
| Iq(Typ), mA | 3.5 | 3.5 | 3.5 |
| Number of Phases | 1 | 1 | 1 |
| Operating Temperature Range, C | -40 to 125 | -40 to 125 | -40 to 125 |
| Package Group | WQFN | WQFN | WQFN |
| Rating | Catalog | Catalog | Catalog |
| Regulated Outputs | 1 | 1 | 1 |
| Special Features | Enable,Frequency Synchronization,Power Good,Pre-Bias Start-Up,Remote Sense,Synchronous Rectification,Tracking | Enable,Frequency Synchronization,Power Good,Pre-Bias Start-Up,Remote Sense,Synchronous Rectification,Tracking | Enable,Frequency Synchronization,Power Good,Pre-Bias Start-Up,Remote Sense,Synchronous Rectification,Tracking |
| Switching Frequency(Max), kHz | 1200 | 1200 | 1200 |
| Switching Frequency(Min), kHz | 200 | 200 | 200 |
| Type | Controller | Controller | Controller |
| Vin(Max), V | 20 | 20 | 20 |
| Vin(Min), V | 3 | 3 | 3 |
| Vout(Max), V | 19 | 19 | 19 |
| Vout(Min), V | 0.6 | 0.6 | 0.6 |
Eco Plan
| LM27403SQ/NOPB | LM27403SQE/NOPB | LM27403SQX/NOPB | |
|---|---|---|---|
| RoHS | Compliant | Compliant | Compliant |
Application Notes
- Reduce buck-converter EMI and voltage stress by minimizing inductive parasiticsPDF, 926 Kb, File published: Jul 21, 2016
Model Line
Series: LM27403 (3)
Manufacturer's Classification
- Semiconductors> Power Management> Non-isolated DC/DC Switching Regulator> Step-Down (Buck)> Buck Controller (External Switch)
