Datasheet Texas Instruments LM3940 — Datenblatt
| Hersteller | Texas Instruments |
| Serie | LM3940 |
1A Low Dropout Regler für die Umwandlung von 5V in 3,3V
Datenblätter
LM3940 1-A Low-Dropout Regulator for 5-V to 3.3-V Conversion datasheet
PDF, 1.9 Mb, Revision: G, Datei veröffentlicht: Feb 16, 2015
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Preise
Status
| LM3940IMP-3.3 | LM3940IMP-3.3/NOPB | LM3940IMPX-3.3 | LM3940IMPX-3.3/NOPB | LM3940IS-3.3 | LM3940IS-3.3/NOPB | LM3940ISX-3.3 | LM3940ISX-3.3/NOPB | LM3940IT-3.3 | LM3940IT-3.3/NOPB | |
|---|---|---|---|---|---|---|---|---|---|---|
| Lifecycle Status | NRND (Not 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) | 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 | Yes | No | No | No | Yes | Yes | No | Yes | No | Yes |
Verpackung
| LM3940IMP-3.3 | LM3940IMP-3.3/NOPB | LM3940IMPX-3.3 | LM3940IMPX-3.3/NOPB | LM3940IS-3.3 | LM3940IS-3.3/NOPB | LM3940ISX-3.3 | LM3940ISX-3.3/NOPB | LM3940IT-3.3 | LM3940IT-3.3/NOPB | |
|---|---|---|---|---|---|---|---|---|---|---|
| N | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
| Pin | 4 | 4 | 4 | 4 | 3 | 3 | 3 | 3 | 3 | 3 |
| Package Type | DCY | DCY | DCY | DCY | KTT | KTT | KTT | KTT | NDE | NDE |
| Industry STD Term | SOT-223 | SOT-223 | SOT-223 | SOT-223 | TO-263 | TO-263 | TO-263 | TO-263 | TO-220 | TO-220 |
| JEDEC Code | R-PDSO-G | R-PDSO-G | R-PDSO-G | R-PDSO-G | R-PSFM-G | R-PSFM-G | R-PSFM-G | R-PSFM-G | R-MSFM-P | R-MSFM-P |
| Package QTY | 1000 | 1000 | 2000 | 2000 | 45 | 45 | 500 | 500 | 45 | 45 |
| Carrier | LARGE T&R | LARGE T&R | LARGE T&R | LARGE T&R | TUBE | TUBE | LARGE T&R | LARGE T&R | TUBE | TUBE |
| Device Marking | L52B | L52B | L52B | L52B | -3.3 P+ | -3.3 P+ | -3.3 P+ | LM3940IS | -3.3 P+ | -3.3 P+ |
| Width (mm) | 3.5 | 3.5 | 3.5 | 3.5 | 8.41 | 8.41 | 8.41 | 8.41 | 10.16 | 10.16 |
| Length (mm) | 6.5 | 6.5 | 6.5 | 6.5 | 10.18 | 10.18 | 10.18 | 10.18 | 14.986 | 14.986 |
| Thickness (mm) | 1.6 | 1.6 | 1.6 | 1.6 | 4.44 | 4.44 | 4.44 | 4.44 | 4.572 | 4.572 |
| Pitch (mm) | 2.3 | 2.3 | 2.3 | 2.3 | 2.54 | 2.54 | 2.54 | 2.54 | 2.54 | 2.54 |
| Max Height (mm) | 1.8 | 1.8 | 1.8 | 1.8 | 4.83 | 4.83 | 4.83 | 4.83 | 4.7 | 4.7 |
| Mechanical Data | Herunterladen | Herunterladen | Herunterladen | Herunterladen | Herunterladen | Herunterladen | Herunterladen | Herunterladen | Herunterladen | Herunterladen |
Parameter
| Parameters / Models | LM3940IMP-3.3 | LM3940IMP-3.3/NOPB | LM3940IMPX-3.3 | LM3940IMPX-3.3/NOPB | LM3940IS-3.3 | LM3940IS-3.3/NOPB | LM3940ISX-3.3 | LM3940ISX-3.3/NOPB | LM3940IT-3.3 | LM3940IT-3.3/NOPB |
|---|---|---|---|---|---|---|---|---|---|---|
| Accuracy, % | 2.5 | 2.5 | 2.5 | 2.5 | 2.5 | 2.5 | 2.5 | 2.5 | 2.5 | 2.5 |
| Fixed Output Options, V | 3.3 | 3.3 | 3.3 | 3.3 | 3.3 | 3.3 | 3.3 | 3.3 | 3.3 | 3.3 |
| Iout(Max), A | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Iq(Typ), mA | 0.11 | 0.11 | 0.11 | 0.11 | 0.11 | 0.11 | 0.11 | 0.11 | 0.11 | 0.11 |
| Noise, uVrms | 150 | 150 | 150 | 150 | 150 | 150 | 150 | 150 | 150 | 150 |
| Operating Temperature Range, C | -40 to 125 | -40 to 125 | -40 to 125 | -40 to 125 | -40 to 125 | -40 to 125 | -40 to 125 | -40 to 125 | -40 to 125 | -40 to 125 |
| Output Capacitor Type | Non-Ceramic | Non-Ceramic | Non-Ceramic | Non-Ceramic | Non-Ceramic | Non-Ceramic | Non-Ceramic | Non-Ceramic | Non-Ceramic | Non-Ceramic |
| Output Options | Fixed Output | Fixed Output | Fixed Output | Fixed Output | Fixed Output | Fixed Output | Fixed Output | Fixed Output | Fixed Output | Fixed Output |
| PSRR @ 100KHz, dB | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 |
| Package Group | SOT-223 | SOT-223 | SOT-223 | SOT-223 | DDPAK/TO-263 | DDPAK/TO-263 | DDPAK/TO-263 | DDPAK/TO-263 | TO-220 | TO-220 |
| Package Size: mm2:W x L, PKG | 4SOT-223: 46 mm2: 7 x 6.5(SOT-223) | 4SOT-223: 46 mm2: 7 x 6.5(SOT-223) | 4SOT-223: 46 mm2: 7 x 6.5(SOT-223) | 4SOT-223: 46 mm2: 7 x 6.5(SOT-223) | 3DDPAK/TO-263: 155 mm2: 15.24 x 10.16(DDPAK/TO-263) | 3DDPAK/TO-263: 155 mm2: 15.24 x 10.16(DDPAK/TO-263) | 3DDPAK/TO-263: 155 mm2: 15.24 x 10.16(DDPAK/TO-263) | 3DDPAK/TO-263: 155 mm2: 15.24 x 10.16(DDPAK/TO-263) | See datasheet (TO-220) | See datasheet (TO-220) |
| Rating | Catalog | Catalog | Catalog | Catalog | Catalog | Catalog | Catalog | Catalog | Catalog | Catalog |
| Regulated Outputs | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Special Features | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A |
| Thermal Resistance ОёJA, В°C/W | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 |
| Vdo(Typ), mV | 310 | 310 | 310 | 310 | 310 | 310 | 310 | 310 | 310 | 310 |
| Vin(Max), V | 5.5 | 5.5 | 5.5 | 5.5 | 5.5 | 5.5 | 5.5 | 5.5 | 5.5 | 5.5 |
| Vin(Min), V | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 |
| Vout(Max), V | 3.3 | 3.3 | 3.3 | 3.3 | 3.3 | 3.3 | 3.3 | 3.3 | 3.3 | 3.3 |
| Vout(Min), V | 3.3 | 3.3 | 3.3 | 3.3 | 3.3 | 3.3 | 3.3 | 3.3 | 3.3 | 3.3 |
Öko-Plan
| LM3940IMP-3.3 | LM3940IMP-3.3/NOPB | LM3940IMPX-3.3 | LM3940IMPX-3.3/NOPB | LM3940IS-3.3 | LM3940IS-3.3/NOPB | LM3940ISX-3.3 | LM3940ISX-3.3/NOPB | LM3940IT-3.3 | LM3940IT-3.3/NOPB | |
|---|---|---|---|---|---|---|---|---|---|---|
| RoHS | See ti.com | Compliant | See ti.com | Compliant | See ti.com | Compliant | See ti.com | Compliant | See ti.com | Compliant |
| Pb Free | Yes | Yes |
Anwendungshinweise
- AN-1061 Power Conversion in Line-Powered Equipment (Rev. B)PDF, 406 Kb, Revision: B, Datei veröffentlicht: Apr 23, 2013
This application note describes line-powered equipment and power conversion techniques or methods tosolve those typical power needs.
Modellreihe
Serie: LM3940 (10)
Herstellerklassifikation
- Semiconductors> Power Management> Linear Regulator (LDO)> Single Channel LDO