LP2954AIS/NOPB Part Information
Details for LP2954AIS/NOPB by Texas Instruments
Semiconductors - ICs > Power Management ICs - PMIC > Voltage Regulators
Part Description
The LP2954 is a 5-V micropower LDO with very low quiescent current (90 μA typical at 1-mA load) and very low dropout voltage (typically 60 mV at light loads and 470 mV at 250-mA load current). The quiescent current increases only slightly at dropout (120 μA typical), which prolongs battery life. The LP2954 with a fixed 5-V output is available in three-pin TO-220 and DDPAK/TO-263 packages. The adjustable LP2954 is provided in an 8-pin, smalloutline SOIC package. The adjustable version also provides a resistor network which can be pin strapped to set the output to any voltage from to 1.23 V to 29 V. Reverse battery protection is provided for the IN pin. The tight line and load regulation (0.04% typical), as well as very low output temperature coefficient make the LP2954 well suited for use as a low-power voltage reference. Output accuracy is ensured at both room temperature and over the entire operating temperature range.
Part Downloads
Download PCB Footprint from Ultra Librarian
Part Features
- 5-V Output within 1.2% Over Temperature (A Grade)
- Adjustable 1.23-V to 29-V Output Voltage Available (LP2954IM and LP2954AIM)
- Adjustable Version Adds ERROR Flag to Warn of
- Current and Thermal Limiting
- Ensured 250-mA Output Current
- Extremely Low Quiescent Current
- Extremely Tight Line and Load Regulation
- Low Dropout Voltage
- Pin Compatible with LM2940 and LM340 (5-V Version Only)
- Reverse Battery Protection
- Very Low Temperature Coefficient
Part Specifications
| Output Type | Fixed |
| Input Voltage Min | -20V |
| Input Voltage Max | 30V |
| Fixed Output Voltage Nom. | 5V |
| Adjustable Output Voltage Min | - |
| Adjustable Output Voltage Max | - |
| Output Current | 250mA |
| Dropout Voltage Vdo | 470mV |
| LDO Regulator Case Style | TO-263 |
| No. of Pins | 3Pins |
| Operating Temperature Min | -40°C |
| Operating Temperature Max | 125°C |
| Product Range | 5V 250mA LDO Voltage Regulators |
| Automotive Qualification Standard | - |
| RoHS Phthalates Compliant | Yes |
| MSL | MSL 3 - 168 hours |
| SVHC | No SVHC (27-Jun-2018) |
| Accuracy % | 1.2% |
| Base Number | 2954 |
| No. of Outputs | 1Outputs |
| Operating Temperature Range | -40°C to +125°C |
| Output Voltage Nom. | 5V |
| Primary Input Voltage | 30V |
| Supply Voltage Min | 6V |
| Termination Type | Surface Mount Device |
| Voltage Regulator Type | LDO Adjustable Positive |
Alternative Part Descriptions
- 250-mA, 30-V, low-dropout voltage regulator with high-accuracy | Texas Instruments