Texas InstrumentsTO-263-4, D²Pak (3 Leads + Tab), TO-263AARoHS
LM340SX-12/NOPB
IC REG LIN 12V 1.5A DDPAK/TO263
Category
Subcategory
Pmic Voltage Regulators Linear
Package
TO-263-4, D²Pak (3 Leads + Tab), TO-263AA
Status
Active
Datasheet
$1.97 / unit (market reference)
MOQ: 1 pcs
Submit your quantity via the inquiry form for a competitive quote within 24 hours.
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Parameters
| Parameter | Value |
|---|---|
| Brand | Texas Instruments |
| Model | LM340SX-12/NOPB |
| Package / Case | TO-263-4, D²Pak (3 Leads + Tab), TO-263AA |
| Mounting Type | Surface Mount |
| Operating Temperature | 0°C ~ 125°C |
| Voltage - Input (Max) | 35V |
| Voltage - Output | 12V |
| Current - Output | 1.5A |
| Supplier Device Package | DDPAK/TO-263-3 |
| RoHS | RoHS |
| Part Status | Active |
Application & Notes
LM340SX-12/NOPB by Texas Instruments is a power conversion IC commonly used in power supply designs, battery-powered devices, and DC-DC conversion modules. Input voltage up to 35V, output 12V. The TO-263-4, D²Pak (3 Leads + Tab), TO-263AA package with surface mount mounting is standard for compact designs. Pay attention to input/output capacitor selection and PCB layout — switching regulators are sensitive to trace inductance.
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Alternatives & Replacements
View All →onsemiStockTO-263-4, D²Pak (3 Leads + Tab), TO-263AA
NCP1086D2T-33R4G
IC REG LINEAR 3.3V 1.5A D2PAK-3
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Rochester Electronics, LLCStockTO-263-4, D²Pak (3 Leads + Tab), TO-263AA
FAN1086M25X
IC REG LINEAR 2.5V 1.5A TO263-3
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onsemiStockTO-263-4, D²Pak (3 Leads + Tab), TO-263AA
NCP1086D2T-33R4
IC REG LINEAR 3.3V 1.5A D2PAK-3
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onsemiStockTO-263-4, D²Pak (3 Leads + Tab), TO-263AA
NCP1086D2T-ADJR4
IC REG LIN POS ADJ 1.5A D2PAK-3
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Rochester Electronics, LLCStockTO-263-4, D²Pak (3 Leads + Tab), TO-263AA
FAN1086M5X
IC REG LINEAR 5V 1.5A TO263-3
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Rochester Electronics, LLCStockTO-263-4, D²Pak (3 Leads + Tab), TO-263AA
FAN1086M33X
IC REG LINEAR 3.3V 1.5A TO263-3
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All Technical Specifications
| PSRR | 80dB (120Hz) |
| Output Type | Fixed |
| Current - Output | 1.5A |
| Protection Features | Over Temperature, Short Circuit |
| Number of Regulators | 1 |
| Output Configuration | Positive |
| Voltage - Input (Max) | 35V |
| Voltage Dropout (Max) | 2V @ 1A |
| Current - Quiescent (Iq) | 8 mA |
| Voltage - Output (Min/Fixed) | 12V |
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