Datasheet Texas Instruments LM3940ISX-3.3/NOPB
| Manufacturer | Texas Instruments |
| Series | LM3940 |
| Part Number | LM3940ISX-3.3/NOPB |
1A Low Dropout Regulator for 5V to 3.3V Conversion 3-DDPAK/TO-263 -40 to 125
Datasheets
LM3940 1-A Low-Dropout Regulator for 5-V to 3.3-V Conversion datasheet
PDF, 1.9 Mb, Revision: G, File published: Feb 16, 2015
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Prices
Status
| Lifecycle Status | Active (Recommended for new designs) |
| Manufacture's Sample Availability | Yes |
Packaging
| Pin | 3 | 3 |
| Package Type | KTT | KTT |
| Industry STD Term | TO-263 | TO-263 |
| JEDEC Code | R-PSFM-G | R-PSFM-G |
| Package QTY | 500 | 500 |
| Carrier | LARGE T&R | LARGE T&R |
| Device Marking | LM3940IS | -3.3 P+ |
| Width (mm) | 8.41 | 8.41 |
| Length (mm) | 10.18 | 10.18 |
| Thickness (mm) | 4.44 | 4.44 |
| Pitch (mm) | 2.54 | 2.54 |
| Max Height (mm) | 4.83 | 4.83 |
| Mechanical Data | Download | Download |
Parametrics
| Accuracy | 2.5 % |
| Fixed Output Options | 3.3 V |
| Iout(Max) | 1 A |
| Iq(Typ) | 0.11 mA |
| Noise | 150 uVrms |
| Operating Temperature Range | -40 to 125 C |
| Output Capacitor Type | Non-Ceramic |
| Output Options | Fixed Output |
| PSRR @ 100KHz | 32 dB |
| Package Group | DDPAK/TO-263 |
| Package Size: mm2:W x L | 3DDPAK/TO-263: 155 mm2: 15.24 x 10.16(DDPAK/TO-263) PKG |
| Rating | Catalog |
| Regulated Outputs | 1 |
| Special Features | N/A |
| Thermal Resistance ОёJA | 23 В°C/W |
| Vdo(Typ) | 310 mV |
| Vin(Max) | 5.5 V |
| Vin(Min) | 4.5 V |
| Vout(Max) | 3.3 V |
| Vout(Min) | 3.3 V |
Eco Plan
| RoHS | Compliant |
| Pb Free | Yes |
Application Notes
- AN-1061 Power Conversion in Line-Powered Equipment (Rev. B)PDF, 406 Kb, Revision: B, File published: Apr 23, 2013
This application note describes line-powered equipment and power conversion techniques or methods tosolve those typical power needs.
Model Line
Series: LM3940 (10)
Manufacturer's Classification
- Semiconductors > Power Management > Linear Regulator (LDO) > Single Channel LDO
Other Names:
LM3940ISX3.3/NOPB, LM3940ISX 3.3/NOPB
