Datasheet Microchip LM2576
| Manufacturer | Microchip |
| Series | LM2576 |
The LM2576 series of monolithic integrated circuits provide all the active functions for a step-down (buck) switching regulator
Datasheets
LM2576 - 52 kHz Simple 3A Buck Regulator
PDF, 59 Kb, Revision: 11-05-2015
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Prices
Status
| LM2576-12WT | LM2576-12WU | LM2576-12WU-TR | LM2576-3.3WT | LM2576-3.3WU | LM2576-3.3WU-TR | LM2576-5.0WT | LM2576-5.0WU | LM2576-5.0WU-TR | LM2576WT | LM2576WU | LM2576WU-TR | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Lifecycle Status | Production (Appropriate for new designs but newer alternatives may exist) | Production (Appropriate for new designs but newer alternatives may exist) | Production (Appropriate for new designs but newer alternatives may exist) | Production (Appropriate for new designs but newer alternatives may exist) | Production (Appropriate for new designs but newer alternatives may exist) | Production (Appropriate for new designs but newer alternatives may exist) | Production (Appropriate for new designs but newer alternatives may exist) | Production (Appropriate for new designs but newer alternatives may exist) | Production (Appropriate for new designs but newer alternatives may exist) | Production (Appropriate for new designs but newer alternatives may exist) | Production (Appropriate for new designs but newer alternatives may exist) | Production (Appropriate for new designs but newer alternatives may exist) |
Packaging
| LM2576-12WT | LM2576-12WU | LM2576-12WU-TR | LM2576-3.3WT | LM2576-3.3WU | LM2576-3.3WU-TR | LM2576-5.0WT | LM2576-5.0WU | LM2576-5.0WU-TR | LM2576WT | LM2576WU | LM2576WU-TR | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| N | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 |
| Package | TO-220 | DDPAK | DDPAK | TO-220 | DDPAK | DDPAK | TO-220 | DDPAK | DDPAK | TO-220 | DDPAK | DDPAK |
| Pins | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 |
Parametrics
| Parameters / Models | LM2576-12WT | LM2576-12WU | LM2576-12WU-TR | LM2576-3.3WT | LM2576-3.3WU | LM2576-3.3WU-TR | LM2576-5.0WT | LM2576-5.0WU | LM2576-5.0WU-TR | LM2576WT | LM2576WU | LM2576WU-TR |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| # of Outputs | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Automotive Rated | No | No | No | No | No | No | No | No | No | No | No | No |
| Duty Cycle Max, % | 0.98 | 0.98 | 0.98 | 0.98 | 0.98 | 0.98 | 0.98 | 0.98 | 0.98 | 0.98 | 0.98 | 0.98 |
| Input Voltage Range, V | 4 - 40 | 4 - 40 | 4 - 40 | 4 - 40 | 4 - 40 | 4 - 40 | 4 - 40 | 4 - 40 | 4 - 40 | 4 - 40 | 4 - 40 | 4 - 40 |
| Light Load Efficiency Mode | No | No | No | No | No | No | No | No | No | No | No | No |
| Operating Temperature Range, °C | -40 to +85 | -40 to +85 | -40 to +85 | -40 to +85 | -40 to +85 | -40 to +85 | -40 to +85 | -40 to +85 | -40 to +85 | -40 to +85 | -40 to +85 | -40 to +85 |
| Output Current, mA) Max | 3000 | 3000 | 3000 | 3000 | 3000 | 3000 | 3000 | 3000 | 3000 | 3000 | 3000 | 3000 |
| Output Voltage Range, V | 1.23 | 1.23 | 1.23 | 1.23 | 1.23 | 1.23 | 1.23 | 1.23 | 1.23 | 1.23 | 1.23 | 1.23 |
| Quiescent Current, mA) type | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 |
| Regulator Type | Step Down (Buck) | Step Down (Buck) | Step Down (Buck) | Step Down (Buck) | Step Down (Buck) | Step Down (Buck) | Step Down (Buck) | Step Down (Buck) | Step Down (Buck) | Step Down (Buck) | Step Down (Buck) | Step Down (Buck) |
| SHUTDOWN Current, µA | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 |
| Switching Frequency, kHz | 52 | 52 | 52 | 52 | 52 | 52 | 52 | 52 | 52 | 52 | 52 | 52 |
| Synchronous Rectifier | No | No | No | No | No | No | No | No | No | No | No | No |
| Vfb, V | 1.23 | 1.23 | 1.23 | 1.23 | 1.23 | 1.23 | 1.23 | 1.23 | 1.23 | 1.23 | 1.23 | 1.23 |
Eco Plan
| LM2576-12WT | LM2576-12WU | LM2576-12WU-TR | LM2576-3.3WT | LM2576-3.3WU | LM2576-3.3WU-TR | LM2576-5.0WT | LM2576-5.0WU | LM2576-5.0WU-TR | LM2576WT | LM2576WU | LM2576WU-TR | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| RoHS | Compliant | Compliant | Compliant | Compliant | Compliant | Compliant | Compliant | Compliant | Compliant | Compliant | Compliant | Compliant |
Model Line
Series: LM2576 (12)
Manufacturer's Classification
- Power Management > Switching Regulators > Step Down up to 75V
