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Technical Specifications
Parameters and characteristics for this part
| Specification | LM2940IMP-12 |
|---|---|
| Current - Output | 1 A |
| Current - Quiescent (Iq) | 10 mA |
| Current - Supply (Max) [Max] | 15 mA |
| Mounting Type | Surface Mount |
| Number of Regulators | 1 |
| Operating Temperature [Max] | 85 °C |
| Operating Temperature [Min] | -40 °C |
| Output Configuration | Positive |
| Output Type | 1.81 mOhm |
| Package / Case | TO-261AA, TO-261-4 |
| Protection Features | Short Circuit, Reverse Polarity, Over Current, Over Temperature |
| PSRR | 66 dB |
| Supplier Device Package | SOT-223-4 |
| Voltage - Input (Max) [Max] | 26 V |
| Voltage - Output (Min/Fixed) | 12 V |
| Voltage Dropout (Max) [Max] | 1 V |
LM2940-N Series
1-A, 26-V, high-PSRR, low-dropout voltage regulator
| Part | Operating Temperature [Min] | Operating Temperature [Max] | Number of Regulators | Protection Features | Current - Output | Voltage - Output (Min/Fixed) | Supplier Device Package | Voltage Dropout (Max) [Max] | Mounting Type | Voltage - Input (Max) [Max] | Current - Supply (Max) [Max] | Output Type | Output Configuration | PSRR | Current - Quiescent (Iq) | Package / Case |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 Texas Instruments | 0 °C | 125 °C | 1 | Over Current Over Temperature Reverse Polarity Short Circuit | 1 A | 15 V | TO-263 (DDPAK-3) | 0.8 V | Surface Mount | 26 V | 15 mA | 1.81 mOhm | Positive | 64 dB | 10 mA | D2PAK (3 Leads + Tab) TO-263-4 TO-263AA |
 Texas Instruments | 0 °C | 125 °C | 1 | Over Current Over Temperature Reverse Polarity Short Circuit | 1 A | 5 V | TO-263 (DDPAK-3) | 0.8 V | Surface Mount | 26 V | 15 mA | 1.81 mOhm | Positive | 64 dB | 10 mA | D2PAK (3 Leads + Tab) TO-263-4 TO-263AA |
Texas Instruments | -40 °C | 85 °C | 1 | Over Current Over Temperature Reverse Polarity Short Circuit | 1 A | 12 V | Wafersale | 1 V | Surface Mount | 26 V | 60 mA | 1.81 mOhm | Positive | 15 mA | Die | |
Texas Instruments | -40 °C | 85 °C | 1 | Over Current Over Temperature Reverse Polarity Short Circuit | 1 A | 5 V | SOT-223-4 | 1 V | Surface Mount | 26 V | 15 mA | 1.81 mOhm | Positive | 64 dB | 10 mA | TO-261-4 TO-261AA |
Texas Instruments | -40 °C | 85 °C | 1 | Over Current Over Temperature Reverse Polarity Short Circuit | 1 A | 12 V | SOT-223-4 | 1 V | Surface Mount | 26 V | 15 mA | 1.81 mOhm | Positive | 66 dB | 10 mA | TO-261-4 TO-261AA |
Texas Instruments | -40 °C | 85 °C | 1 | Over Current Over Temperature Reverse Polarity Short Circuit | 1 A | 8 V | SOT-223-4 | 1 V | Surface Mount | 26 V | 15 mA | 1.81 mOhm | Positive | 66 dB | 10 mA | TO-261-4 TO-261AA |
Texas Instruments | -40 °C | 125 °C | 1 | Over Current Over Temperature Reverse Polarity Short Circuit | 1 A | 5 V | TO-263 (DDPAK-3) | 1 V | Surface Mount | 26 V | 15 mA | 1.81 mOhm | Positive | 64 dB | 10 mA | D2PAK (3 Leads + Tab) TO-263-4 TO-263AA |
Texas Instruments | -40 °C | 125 °C | 1 | Over Current Over Temperature Reverse Polarity Short Circuit | 1 A | 10 V | TO-263 (DDPAK-3) | 1 V | Surface Mount | 26 V | 15 mA | 1.81 mOhm | Positive | 63 dB | 10 mA | D2PAK (3 Leads + Tab) TO-263-4 TO-263AA |
Texas Instruments | 0 °C | 125 °C | 1 | Over Current Over Temperature Reverse Polarity Short Circuit | 1 A | 9 V | TO-263 (DDPAK-3) | 0.8 V | Surface Mount | 26 V | 15 mA | 1.81 mOhm | Positive | 64 dB | 10 mA | D2PAK (3 Leads + Tab) TO-263-4 TO-263AA |
Texas Instruments | -40 °C | 125 °C | 1 | Over Current Over Temperature Reverse Polarity Short Circuit | 1 A | 8 V | TO-263 (DDPAK-3) | 1 V | Surface Mount | 26 V | 15 mA | 1.81 mOhm | Positive | 66 dB | 10 mA | D2PAK (3 Leads + Tab) TO-263-4 TO-263AA |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
Description
General part information
LM2940-N Series
The LM2940-N and LM2940C positive voltage regulators feature the ability to source 1 A of output current with a dropout voltage of typically 0.5 V and a maximum of 1 V over the entire temperature range. Furthermore, a quiescent current reduction circuit has been included which reduces the ground current when the differential between the input voltage and the output voltage exceeds approximately 3 V. The quiescent current with 1 A of output current and an input-output differential of 5 V is therefore only 30 mA. Higher quiescent currents only exist when the regulator is in the dropout mode (VIN− VOUT≤ 3 V).
Designed also for vehicular applications, the LM2940-N and LM2940C and all regulated circuitry are protected from reverse battery installations or 2-battery jumps. During line transients, such as load dump when the input voltage can momentarily exceed the specified maximum operating voltage, the regulator will automatically shut down to protect both the internal circuits and the load. The LM2940-N and LM2940C cannot be harmed by temporary mirror-image insertion. Familiar regulator features such as short circuit and thermal overload protection are also provided.
The LM2940-N and LM2940C positive voltage regulators feature the ability to source 1 A of output current with a dropout voltage of typically 0.5 V and a maximum of 1 V over the entire temperature range. Furthermore, a quiescent current reduction circuit has been included which reduces the ground current when the differential between the input voltage and the output voltage exceeds approximately 3 V. The quiescent current with 1 A of output current and an input-output differential of 5 V is therefore only 30 mA. Higher quiescent currents only exist when the regulator is in the dropout mode (VIN− VOUT≤ 3 V).
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