MIC2941A
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.
Features
| Parameter
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Documents
| MIC2940A/2941A - 1.2A Low-Dropout Voltage Regulator | Data Sheets | 11/09/2015 | 324KB | |
| Micrel AN 12 - Design Considerations for 5V to 3.3V Pass Regulators | AppNote | 10/01/2015 | 28KB |  |
| Micrel AN 43 - Improving Adjustable Regulator Accuracy | AppNote | 10/01/2015 | 59KB | |
Ordering Information
| Part Number | Leads | Package Type | Temp Range | Packing | 1+ | 26+ | 100+ | 1000+ | 5000+ |
|---|---|---|---|---|---|---|---|---|---|
| MIC2941AWT | 5 | TO-220 | -40C to +125C | TUBE | 2.69 | 2.24 | 2.04 | 1.70 | 1.57 |
| MIC2941AWU | 5 | DDPAK | -40C to +125C | TUBE | 2.08 | 1.74 | 1.58 | 1.32 | 1.22 |
| MIC2941AWU-TR | 5 | DDPAK | -40C to +125C | T/R | 2.08 | 1.74 | 1.58 | 1.32 | 1.22 |
RoHS Information
| PartNumber | DeviceWeight | ShippingWeight | LeadCount | PackageType | PackageWidth | SolderComposition | JEDECIndicator | RoHS | ChinaEFUP |
|---|---|---|---|---|---|---|---|---|---|
| MIC2941AWT | 1.983900 | 3.120000 | 5 | TO-220 | - | Matte Tin | e3 |  |  |
| MIC2941AWU | 1.462500 | 2.520000 | 5 | DDPAK | - | Matte Tin | e3 | | |
| MIC2941AWU-TR | 1.462500 | 2.053333 | 5 | DDPAK | - | Matte Tin | e3 | | |
- Micrel AN 12 MIC29752
- Micrel AN 43 MIC29752
