MIC2940A-3.3WT More Semiconductors - ICs by Microchip Technology
1.25A LDO Fixed Voltage
| Status: | Active |
|---|---|
| Series: | MIC2940A |
| RoHS: | Compliant |
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.
Where to Buy
Prices starting from US$1.68
| Distributor | Stock | ||
|---|---|---|---|
|
Farnell
from US$2.19
|
94
in stock
|
Buy Now |
|
Newark Electronics
from US$2.55
|
94
in stock
|
Buy Now |
|
element14
from US$2.52
|
94
in stock
|
Buy Now |
|
Future Electronics
from US$2.14
|
-
|
Buy Now |
|
Avnet America
from US$2.89
|
-
|
Buy Now |
|
Microchip Technology
from US$1.68
|
-
|
Buy Now |
|
EBV Elektronik
-
|
-
|
Buy Now |
|
Avnet Silica
-
|
-
|
Buy Now |
Features
| High output voltage accuracy |
| Guaranteed 1.25A output |
| Low quiescent current |
| Low dropout voltage |
| Extremely tight load and line regulation |
| Very low temperature coefficient |
| Current and thermal limiting |
| Input can withstand -20V reverse battery and +60V positive transients |
| Logic-controlled electronic shutdown |
| Output programmable from 1.24V to 26V (MIC2941A) |
| Available in TO-220, TO-263, TO-220-5, and TO-263-5 packages. |
Specifications
| Product Type | Single LDOs |
|---|---|
| Line Regulation (%) | 0 |
| Load Regulation(%) | 0 |
| # of Out | 1 |
| IOUT #1 | 1250 |
| IOUT #2 | n/a |
| IOUT #3 | n/a |
| IOUT #4 | n/a |
| Rated IOUT | 1250 |
| VIN Min (V) | 2 |
| VIN Max (V) | 26 |
| VOUT (V) | 3.3, 5.0, 12 |
| Voltage Drop Typ (mV) | 400 |
| IGND Typ (µA) | 240 |
| Tol Typ % | ±1 |
| Noise (µV) rms | 260 |
| PSRR 1 kHz (dB) | N/A |
| Load Dump | Yes |
| Rev Bat | Yes |
| Reverse Current Protect | Yes |
| Pins | Packaging | 3 | TO-220 |
| Temp Range | -40C to +125C |
| Packing Media | Tube (50) |
Environmental Information
| JEDEC Indicator | e3 |
|---|---|
| ROHS | Compliant |
| China EFUP | Compliant |
| Device Weight (g) | 1.8902 |
| Shipping Weight (kg) | 2.66 |
| Lead Count | 3 |
| Package Type | TO-220 |
| Soldering Composition | Matte Tin |
Alternative Descriptions
| Ldo, Fixed, 3.3V, 1.25A, To-220-3 | Newark Electronics |
| LDO VOLT REG, 1.25A, 3.3V, TO-220-3 | element14 |
| MIC2940A Series 3.3 V Fixed Output Voltage 1.25 A LDO Regulator -TO-220-3 | Future Electronics |
| LDO Regulator Pos 3.3V 1.25A 3-Pin TO-220 Tube | Avnet America |
Frequently Asked Questions
Where can I find additional details, specifications and documents for a MIC2940A-3.3WT?
Additional datasheets, footprints and schematics for MIC2940A-3.3WT are listed on our Part Details page. You can also find images and similar parts to MIC2940A-3.3WT on this page.
What pricing and inventory information can I view?
Distributor pricing and stock information is available for MIC2940A-3.3WT on our Product Comparison page. Access via the 'View Pricing & Stock' button to view MIC2940A-3.3WT price breaks, MOQs, lead times, inventory and SKUs from distributors.
What category does MIC2940A-3.3WT fall under?
The MIC2940A-3.3WT is listed under Semiconductors - ICs > More Semiconductors - ICs.
Can I view similar or alternative parts?
You can view similar parts to MIC2940A-3.3WT when available in the More Semiconductors - ICs range under the specifications section at the bottom of the details page.
Who can I contact for technical support of the product?
Submit any questions directly to the customer support team of the distributor listing the product. For the MIC2940A-3.3WT you can contact the distributor directly for product support, shipping queries etc.
Is the MIC2940A-3.3WT RoHS compliant?
Yes. This part has been flagged as RoHS Compliant by Microchip Technology.
Which authorised distributors for MIC2940A-3.3WT have stock available?
Authorised distributors including Newark Electronics, element14, Farnell, Future Electronics and Avnet America have stock available or on a lead time for MIC2940A-3.3WT.
How do I check stock and lead times for all distributors?
Stock availability and lead times will be displayed for MIC2940A-3.3WT often in real-time on the comparison pages.
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