MIC2954-03WS-TR by Microchip Technology
Improved LP2954 Low Drop-out Regulator
| Status: | Active |
|---|---|
| Series: | MIC2954 |
| RoHS: | Compliant |
The MIC2954 is a "bulletproof", efficient voltage regulator with very low dropout voltage (typically 40mV at light loads and 375mV at 250mA) and low quiescent current (120µA typical). The quiescent current of the MIC2954 increases only slightly in dropout, thus prolonging battery life. Key MIC2954 features include protection against reversed battery, fold-back current limiting, and automotive load-dump protection (60V positive transient).
The MIC2954-07/08BM is an adjustable version that includes an error flag output that warns of a low output voltage, which is often due to failing batteries on the input. This may also be used as a power-on reset. A logic-compatible shutdown input is provided which enables the regulator to be switched on and off. This part may be pin-strapped for 5V output or programmed from 1.24V to 29V with the use of two external resistors.
The MIC2954 is available in two voltage tolerances, ±0.5% maximum and ±1% maximum. Both are guaranteed for junction temperatures from -40°C to +125°C.
The MIC2954 has a very low output voltage temperature coefficient and extremely good load and line regulation (0.04% typical).
Where to Buy
Prices starting from US$1.27
| Distributor | Stock | ||
|---|---|---|---|
|
Farnell
from US$1.67
|
1,065
in stock
|
Buy Now |
|
Future Electronics
from US$1.62
|
2,500
in stock
|
Buy Now |
|
Newark Electronics
from US$1.92
|
1,065
in stock
|
Buy Now |
|
element14
from US$1.75
|
1,065
in stock
|
Buy Now |
|
Avnet America
from US$2.16
|
-
|
Buy Now |
|
Microchip Technology
from US$1.27
|
-
|
Buy Now |
|
EBV Elektronik
-
|
-
|
Buy Now |
|
Avnet Silica
-
|
-
|
Buy Now |
Features
| High-accuracy: 5V, guaranteed 250mA 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 |
| Error flag warns of low output voltage |
| Logic-controlled electronic shutdown |
| Output programmable from 1.24V to 29V (MIC2954-07/08) |
| Available in TO-220, TO-92, and surface-mount SOT-223 and SOP-8 packages |
Specifications
| Product Type | Single LDOs |
|---|---|
| Line Regulation (%) | 0 |
| Load Regulation(%) | 0 |
| # of Out | 1 |
| IOUT #1 | 250 |
| IOUT #2 | n/a |
| IOUT #3 | n/a |
| IOUT #4 | n/a |
| Rated IOUT | 250 |
| VIN Min (V) | 2 |
| VIN Max (V) | 30 |
| VOUT (V) | 5.0, Adj |
| Voltage Drop Typ (mV) | 375 |
| IGND Typ (µA) | 140 |
| Tol Typ % | ±1 |
| Noise (µV) rms | 260 |
| PSRR 1 kHz (dB) | N/A |
| Load Dump | Yes |
| Rev Bat | Yes |
| Pins | Packaging | 3 | SOT-223 |
| Temp Range | -40C to +125C |
| Packing Media | Tape and reel (2500) |
Resources
Data Sheets |
|---|
| MIC2954 - 250mA Low-Dropout Regulator |
Environmental Information
| JEDEC Indicator | e3 |
|---|---|
| ROHS | Compliant |
| China EFUP | Compliant |
| Device Weight (g) | 0.123 |
| Shipping Weight (kg) | 0.44 |
| Lead Count | 3 |
| Package Type | SOT-223 |
| Soldering Composition | Matte Tin |
Alternative Descriptions
| MIC2954 Series 5 V Fixed Output 250 mA SMT LDO Voltage Regulator - SOT-223 | Future Electronics |
| Ldo, Reg, 30Vin, 0.25A, 5V, 1%, 3Sot223 | Newark Electronics |
| LDO, REG, 30VIN, 0.25A, 5V, 1%, 3SOT223 | element14 |
| LDO Regulator Pos 5V 250mA 3-Pin SOT-223 T/R | Avnet America |
Frequently Asked Questions
Where can I find additional details, specifications and documents for a MIC2954-03WS-TR?
Additional datasheets, footprints and schematics for MIC2954-03WS-TR are listed on our Part Details page. You can also find images and similar parts to MIC2954-03WS-TR on this page.
What pricing and inventory information can I view?
Distributor pricing and stock information is available for MIC2954-03WS-TR on our Product Comparison page. Access via the 'View Pricing & Stock' button to view MIC2954-03WS-TR price breaks, MOQs, lead times, inventory and SKUs from distributors.
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 MIC2954-03WS-TR you can contact the distributor directly for product support, shipping queries etc.
Is the MIC2954-03WS-TR RoHS compliant?
Yes. This part has been flagged as RoHS Compliant by Microchip Technology.
Which authorised distributors for MIC2954-03WS-TR have stock available?
Authorised distributors including Future Electronics, Newark Electronics, element14, Farnell and Avnet America have stock available or on a lead time for MIC2954-03WS-TR.
How do I check stock and lead times for all distributors?
Stock availability and lead times will be displayed for MIC2954-03WS-TR often in real-time on the comparison pages.
What if I can't find stock of MIC2954-03WS-TR?
You can fill out our help required form which you can use to request a quote for MIC2954-03WS-TR from some of our verified obsolescence suppliers. Alternatively, contact us via our web chat in the bottom left of your screen and one of our team will try to help.