MIC2940A-3.3WU-TR
Active1.25A LDO FIXED VOLTAGE 3 TO-263 - T/R ROHS COMPLIANT: YES
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MIC2940A-3.3WU-TR
Active1.25A LDO FIXED VOLTAGE 3 TO-263 - T/R ROHS COMPLIANT: YES
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Technical Specifications
Parameters and characteristics for this part
| Specification | MIC2940A-3.3WU-TR |
|---|---|
| Current - Output | 1.25 A |
| Current - Quiescent (Iq) | 0.5 mA |
| Current - Supply (Max) [Max] | 70 mA |
| Mounting Type | Surface Mount |
| Number of Regulators | 1 |
| Operating Temperature [Max] | 125 °C |
| Operating Temperature [Min] | -40 °C |
| Output Configuration | Positive |
| Output Type | 1.81 mOhm |
| Package / Case | TO-263AA, D2PAK (3 Leads + Tab), TO-263-4 |
| Protection Features | Over Temperature, Reverse Polarity, Over Current |
| Supplier Device Package | TO-263-3 |
| Voltage - Input (Max) [Max] | 26 V |
| Voltage - Output (Min/Fixed) | 3.3 V |
| Voltage Dropout (Max) [Max] | 0.6 V |
MIC2940A Series
1.25A LDO Fixed Voltage
| Part | Package / Case | Voltage - Output (Min/Fixed) | Mounting Type | Supplier Device Package | Protection Features | Current - Quiescent (Iq) | Output Configuration | Current - Supply (Max) [Max] | Output Type | Voltage - Input (Max) [Max] | Voltage Dropout (Max) [Max] | Operating Temperature [Max] | Operating Temperature [Min] | Current - Output | Number of Regulators |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 Microchip Technology | TO-220-3 | 12 V | Through Hole | TO-220-3 | Over Current Over Temperature Reverse Polarity | 0.5 mA | Positive | 70 mA | 1.81 mOhm | 26 V | 0.6 V | 125 °C | -40 °C | 1.25 A | 1 |
Microchip Technology | D2PAK (3 Leads + Tab) TO-263-4 TO-263AA | 3.3 V | Surface Mount | TO-263-3 | Over Current Over Temperature Reverse Polarity | 0.5 mA | Positive | 70 mA | 1.81 mOhm | 26 V | 0.6 V | 125 °C | -40 °C | 1.25 A | 1 |
 Microchip Technology | D2PAK (3 Leads + Tab) TO-263-4 TO-263AA | 3.3 V | Surface Mount | TO-263-3 | Over Current Over Temperature Reverse Polarity | 0.5 mA | Positive | 70 mA | 1.81 mOhm | 26 V | 0.6 V | 125 °C | -40 °C | 1.25 A | 1 |
Microchip Technology | TO-220-3 | 12 V | Through Hole | TO-220-3 | Over Current Over Temperature Reverse Polarity | 0.5 mA | Positive | 70 mA | 1.81 mOhm | 26 V | 0.6 V | 125 °C | -40 °C | 1.25 A | 1 |
Microchip Technology | D2PAK (3 Leads + Tab) TO-263-4 TO-263AA | 5 V | Surface Mount | TO-263-3 | Over Current Over Temperature Reverse Polarity | 0.5 mA | Positive | 70 mA | 1.81 mOhm | 26 V | 0.6 V | 125 °C | -40 °C | 1.25 A | 1 |
Microchip Technology | D2PAK (3 Leads + Tab) TO-263-4 TO-263AA | 5 V | Surface Mount | TO-263-3 | Over Current Over Temperature Reverse Polarity | 0.5 mA | Positive | 70 mA | 1.81 mOhm | 26 V | 0.6 V | 125 °C | -40 °C | 1.25 A | 1 |
Microchip Technology | TO-220-3 | 5 V | Through Hole | TO-220-3 | Over Current Over Temperature Reverse Polarity | 0.5 mA | Positive | 70 mA | 1.81 mOhm | 26 V | 0.6 V | 125 °C | -40 °C | 1.25 A | 1 |
Microchip Technology | D2PAK (3 Leads + Tab) TO-263-4 TO-263AA | 12 V | Surface Mount | TO-263-3 | Over Current Over Temperature Reverse Polarity | 0.5 mA | Positive | 70 mA | 1.81 mOhm | 26 V | 0.6 V | 125 °C | -40 °C | 1.25 A | 1 |
Microchip Technology | D2PAK (3 Leads + Tab) TO-263-4 TO-263AA | 3.3 V | Surface Mount | TO-263-3 | Over Current Over Temperature Reverse Polarity | 0.5 mA | Positive | 70 mA | 1.81 mOhm | 26 V | 0.6 V | 125 °C | -40 °C | 1.25 A | 1 |
Microchip Technology | D2PAK (3 Leads + Tab) TO-263-4 TO-263AA | 12 V | Surface Mount | TO-263-3 | Over Current Over Temperature Reverse Polarity | 0.5 mA | Positive | 70 mA | 1.81 mOhm | 26 V | 0.6 V | 125 °C | -40 °C | 1.25 A | 1 |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Cut Tape (CT) | 1 | $ 2.67 | |
| 25 | $ 2.23 | |||
| 100 | $ 2.03 | |||
| Digi-Reel® | 1 | $ 2.67 | ||
| 25 | $ 2.23 | |||
| 100 | $ 2.03 | |||
| Tape & Reel (TR) | 750 | $ 2.03 | ||
| Microchip Direct | T/R | 1 | $ 2.67 | |
| 25 | $ 2.23 | |||
| 100 | $ 2.03 | |||
| 1000 | $ 1.68 | |||
| 5000 | $ 1.55 | |||
| 10000 | $ 1.44 | |||
| Newark | Each (Supplied on Full Reel) | 100 | $ 2.09 | |
Description
General part information
MIC2940A Series
The MIC2940A and MIC2941A are "bulletproof" efficient voltage regulators with very low dropout voltage (typically 40mV at light loads and 350mV at 1A) and low quiescent current (240µA typical). The quiescent current of the MIC2940A increases only slightly in dropout, thus prolonging battery life. Key MIC2940A features include protection against reversed battery, fold-back current limiting, and automotive load-dump protection (60V positive transient).
The MIC2940 is available in both fixed voltage (3.3V, 5V, and 12V) and adjustable voltage configurations. The MIC2940A-xx devices are 3-pin fixed voltage regulators. A logic-compatible shutdown input is provided on the adjustable MIC2941A, which enables the regulator to be switched on and off.