Datasheet Texas Instruments LM5642
| Manufacturer | Texas Instruments |
| Series | LM5642 |
4.5-36V, Current Mode Dual Synchronous Buck Controller with Oscillator Synchronization
Datasheets
LM5642/42X High V, Dual Sync Buck Converter w/Oscil Sync datasheet
PDF, 1.6 Mb, Revision: K, File published: Apr 4, 2013
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Prices
Status
| LM5642MH/NOPB | LM5642MHX/NOPB | LM5642MTC | LM5642MTC/NOPB | LM5642MTCX | LM5642MTCX/NOPB | |
|---|---|---|---|---|---|---|
| Lifecycle Status | Active (Recommended for new designs) | Active (Recommended for new designs) | NRND (Not recommended for new designs) | Active (Recommended for new designs) | NRND (Not recommended for new designs) | Active (Recommended for new designs) |
| Manufacture's Sample Availability | No | No | Yes | No | Yes | No |
Packaging
| LM5642MH/NOPB | LM5642MHX/NOPB | LM5642MTC | LM5642MTC/NOPB | LM5642MTCX | LM5642MTCX/NOPB | |
|---|---|---|---|---|---|---|
| N | 1 | 2 | 3 | 4 | 5 | 6 |
| Pin | 28 | 28 | 28 | 28 | 28 | 28 |
| Package Type | PWP | PWP | PW | PW | PW | PW |
| Industry STD Term | HTSSOP | HTSSOP | TSSOP | TSSOP | TSSOP | TSSOP |
| JEDEC Code | R-PDSO-G | R-PDSO-G | R-PDSO-G | R-PDSO-G | R-PDSO-G | R-PDSO-G |
| Package QTY | 48 | 2500 | 48 | 48 | 2500 | 2500 |
| Carrier | TUBE | LARGE T&R | TUBE | TUBE | LARGE T&R | LARGE T&R |
| Device Marking | LM5642 | MH | LM5642 | LM5642 | LM5642 | LM5642 |
| Width (mm) | 4.4 | 4.4 | 4.4 | 4.4 | 4.4 | 4.4 |
| Length (mm) | 9.7 | 9.7 | 9.7 | 9.7 | 9.7 | 9.7 |
| Thickness (mm) | 1 | 1 | 1 | 1 | 1 | 1 |
| Pitch (mm) | .65 | .65 | .65 | .65 | .65 | .65 |
| Max Height (mm) | 1.2 | 1.2 | 1.2 | 1.2 | 1.2 | 1.2 |
| Mechanical Data | Download | Download | Download | Download | Download | Download |
Parametrics
| Parameters / Models | LM5642MH/NOPB | LM5642MHX/NOPB | LM5642MTC | LM5642MTC/NOPB | LM5642MTCX | LM5642MTCX/NOPB |
|---|---|---|---|---|---|---|
| Control Mode | Current Mode | Current Mode | Current Mode | Current Mode | Current Mode | Current Mode |
| Duty Cycle(Max), % | 99 | 99 | 99 | 99 | 99 | 99 |
| Iout(Max), A | 20 | 20 | 20 | 20 | 20 | 20 |
| Iq(Typ), mA | 1.1 | 1.1 | 1.1 | 1.1 | 1.1 | 1.1 |
| Number of Phases | 2 | 2 | 2 | 2 | 2 | 2 |
| Operating Temperature Range, C | -40 to 125 | -40 to 125 | -40 to 125 | -40 to 125 | -40 to 125 | -40 to 125 |
| Package Group | TSSOP | TSSOP | TSSOP | TSSOP | TSSOP | TSSOP |
| Rating | Catalog | Catalog | Catalog | Catalog | Catalog | Catalog |
| Regulated Outputs | 2 | 2 | 2 | 2 | 2 | 2 |
| Special Features | Adjustable Current Limit,Enable,Frequency Synchronization,Synchronous Rectification | Adjustable Current Limit,Enable,Frequency Synchronization,Synchronous Rectification | Adjustable Current Limit,Enable,Frequency Synchronization,Synchronous Rectification | Adjustable Current Limit,Enable,Frequency Synchronization,Synchronous Rectification | Adjustable Current Limit,Enable,Frequency Synchronization,Synchronous Rectification | Adjustable Current Limit,Enable,Frequency Synchronization,Synchronous Rectification |
| Switching Frequency(Max), kHz | 250 | 250 | 250 | 250 | 250 | 250 |
| Switching Frequency(Min), kHz | 150 | 150 | 150 | 150 | 150 | 150 |
| Type | Controller | Controller | Controller | Controller | Controller | Controller |
| Vin(Max), V | 36 | 36 | 36 | 36 | 36 | 36 |
| Vin(Min), V | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 |
| Vout(Max), V | 34 | 34 | 34 | 34 | 34 | 34 |
| Vout(Min), V | 1.236 | 1.236 | 1.236 | 1.236 | 1.236 | 1.236 |
Eco Plan
| LM5642MH/NOPB | LM5642MHX/NOPB | LM5642MTC | LM5642MTC/NOPB | LM5642MTCX | LM5642MTCX/NOPB | |
|---|---|---|---|---|---|---|
| RoHS | Compliant | Compliant | See ti.com | Compliant | See ti.com | Compliant |
Application Notes
- Power Management Considerations for FPGAs and ASICsPDF, 745 Kb, File published: Mar 22, 2007
- Reduce buck-converter EMI and voltage stress by minimizing inductive parasiticsPDF, 926 Kb, File published: Jul 21, 2016
Model Line
Series: LM5642 (6)
Manufacturer's Classification
- Semiconductors> Power Management> Non-isolated DC/DC Switching Regulator> Step-Down (Buck)> Buck Controller (External Switch)
