LP2951-03YM-TR Power Management ICs - PMIC by Microchip Technology
Low Dropout Regulator
| Status: | Active |
|---|---|
| Series: | LP2951 |
| RoHS: | Compliant |
The LP2950 and LP2951 are micropower voltage regulators with very low dropout voltage (typically 40mV at light loads and 380mV at 100mA), and very low quiescent current (75µA typical). The quiescent current of the LP2950/LP2951 increases only slightly in dropout, thus prolonging battery life. This feature, among others, makes the LP2950 and LP2951 ideally suited for use in battery-powered systems.
Available in a 3-pin TO-92 package, the LP2950 is pin-compatible with the older 5V regulators. Additional system functions, such as programmable output voltage and logic-controlled shutdown, are available in the 8-pin DIP and 8-pin SOIC versions of the LP2951.
Additional features available with the LP2951 also include 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 also available which enables the regulator to be switched on and off. This part may also be pin-strapped for a 5V output, or programmed from 1.24V to 29V with the use of two external resistors.
The LP2950 is available as either an -02 or -03 version. The -02 and -03 versions are guaranteed for junction temperatures from -40°C to +125°C; the -02 version has a tighter output and reference voltage specification range over temperature. The LP2951 is available as an -02 or -03 version.
The LP2950 and LP2951 both have a tight initial tolerance (0.5% typical), a very low output voltage temperature coefficient, which allows use as a low-power voltage reference, and extremely good load and line regulation (0.05% typical). This greatly reduces the error in the overall circuit and is the result of careful design techniques and process controls.
Where to Buy
Prices starting from US$0.65
| Distributor | Stock | ||
|---|---|---|---|
|
Farnell
from US$0.79
|
2,443
in stock
|
Buy Now |
|
Microchip Technology
from US$0.65
|
17,500
in stock
|
Buy Now |
|
element14
from US$0.84
|
2,443
in stock
|
Buy Now |
|
Newark Electronics
from US$0.90
|
-
|
Buy Now |
|
Future Electronics
from US$0.77
|
-
|
Buy Now |
|
Avnet America
from US$1.13
|
-
|
Buy Now |
|
EBV Elektronik
-
|
-
|
Buy Now |
|
Avnet Silica
-
|
-
|
Buy Now |
Features
| High accuracy 5V, guaranteed 100 mA output |
| Extremely low quiescent current |
| Low-dropout voltage |
| Extremely tight load and line regulation |
| Very low temperature coefficient |
| Use as regulator or reference |
| Needs only 1µF for stability |
| Current and thermal limiting |
| LP2951 Versions Only |
| Error flag warns of output dropout |
| Logic-controlled electronic shutdown |
| Output programmable from 1.24V to 29V |
Specifications
| Product Type | Single LDOs |
|---|---|
| # of Out | 1 |
| IOUT #1 | 100 |
| IOUT #2 | n/a |
| IOUT #3 | n/a |
| IOUT #4 | n/a |
| Rated IOUT | 100 |
| VIN Min (V) | 2 |
| VIN Max (V) | 30 |
| VOUT (V) | 4.8, 5.0, Adj |
| Voltage Drop Typ (mV) | 380 |
| IGND Typ (µA) | 100 |
| Tol Typ % | ±0.5 |
| Noise (µV) rms | 100 |
| PSRR 1 kHz (dB) | 70 |
| Pins | Packaging | 8 | SOIC |
| Temp Range | -40C to +125C |
| Packing Media | Tape and reel (2500) |
Environmental Information
| JEDEC Indicator | e4 |
|---|---|
| ROHS | Compliant |
| China EFUP | Compliant |
| Device Weight (g) | 0.075 |
| Shipping Weight (kg) | 0.25 |
| Lead Count | 8 |
| Package Type | SOIC |
| Package Width or Size | 3.90mm(.150in) |
| Soldering Composition | NiPdAu |
Alternative Descriptions
| Low Drop Out Regulator | Microchip Technology |
| LDO, FIXED, 5V, 0.1A, SOIC-8 | element14 |
| Low Drop Out Regulator 8 Soic 3.90Mm(.150In) T/R Rohs Compliant: Yes |Microchip LP2951-03YM-TR | Newark Electronics |
| LP2951 Series 5 V Fixed Output 100 mA SMT LDO Voltage Regulator - SOIC-8 T/R | Future Electronics |
| LOW DROP OUT REGULATOR | Avnet America |
Frequently Asked Questions
Where can I find additional details, specifications and documents for a LP2951-03YM-TR?
Additional datasheets, footprints and schematics for LP2951-03YM-TR are listed on our Part Details page. You can also find images and similar parts to LP2951-03YM-TR on this page.
What pricing and inventory information can I view?
Distributor pricing and stock information is available for LP2951-03YM-TR on our Product Comparison page. Access via the 'View Pricing & Stock' button to view LP2951-03YM-TR price breaks, MOQs, lead times, inventory and SKUs from distributors.
What category does LP2951-03YM-TR fall under?
The LP2951-03YM-TR is listed under Semiconductors - ICs > Power Management ICs - PMIC > Voltage Regulators > LDO Voltage Regulators.
Can I view similar or alternative parts?
You can view similar parts to LP2951-03YM-TR when available in the LDO Voltage Regulators 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 LP2951-03YM-TR you can contact the distributor directly for product support, shipping queries etc.
Is the LP2951-03YM-TR RoHS compliant?
Yes. This part has been flagged as RoHS Compliant by Microchip Technology.
Which authorised distributors for LP2951-03YM-TR have stock available?
Authorised distributors including Microchip Technology, element14, Farnell, Newark Electronics and Future Electronics have stock available or on a lead time for LP2951-03YM-TR.
How do I check stock and lead times for all distributors?
Stock availability and lead times will be displayed for LP2951-03YM-TR often in real-time on the comparison pages.
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