LP3961EMP-3.3/NOPB Part Information
Details for LP3961EMP-3.3/NOPB by Texas Instruments
Semiconductors - ICs > Power Management ICs - PMIC > Voltage Regulators
Part Description
The LP396x series of fast ultra-low-dropout linear regulators operate from a 2.5-V to 7-V input supply. A wide range of preset output voltage options are available. These ultra-low dropout linear regulators respond very fast to step changes in load which makes them suitable for low-voltage microprocessor applications. The LP3961 and LP3964 are developed on a CMOS process which allows low quiescent current operation independent of output load current, as well as operation under extremely low dropout conditions. Dropout Voltage: Ultra-low dropout voltage; typically 24 mV at 80-mA load current and 240 mV at 800-mA load current. Ground Pin Current: Typically 4 mA at 800-mA load current. ERROR Flag: ERROR flag goes low when the output voltage drops 10% below nominal value (for LP3961). SENSE: SENSE pin improves regulation at remote loads (for LP3964). Precision Output Voltage: Multiple output voltage options are available ranging from 1.2 V to 5 V and adjustable (LP3964), with a specified accuracy of ±1.5% at room temperature, and ±3% over all conditions (varying line, load, and temperature).
Part Downloads
Download PCB Footprint from Ultra Librarian
Part Features
- 15-u00b5A Quiescent Current in Shutdown Mode
- ERROR Flag Indicates Output Status (LP3961)
- Extremely Low Output Capacitor Requirements
- Input Supply Voltage: 2.5 V to 7 V
- Load Regulation of 0.02%
- Low Ground Pin Current
- Output Voltage Accuracy u00b11.5%
- Overtemperature and Overcurrent Protection
- Sense Option Improves Better Load Regulation (LP3964)
- Specified Output Current of 0.8-A DC
- Ultra-Low Dropout Voltage
- u221240u00b0C to 125u00b0C Junction Temperature Range
Part Specifications
| Output Type | Fixed |
| Input Voltage Min | 2.5V |
| Input Voltage Max | 7V |
| Fixed Output Voltage Nom. | 3.3V |
| Adjustable Output Voltage Min | - |
| Adjustable Output Voltage Max | - |
| Output Current | 800mA |
| Dropout Voltage Vdo | 240mV |
| LDO Regulator Case Style | SOT-223 |
| No. of Pins | 5Pins |
| Operating Temperature Min | -40°C |
| Operating Temperature Max | 125°C |
| Product Range | 3.3V 800mA LDO Voltage Regulators |
| Automotive Qualification Standard | - |
| RoHS Phthalates Compliant | Yes |
| MSL | MSL 1 - Unlimited |
| SVHC | No SVHC (27-Jun-2018) |
| Accuracy % | 1.5% |
| Base Number | 3961 |
| No. of Outputs | 1Outputs |
| Operating Temperature Range | -40°C to +125°C |
| Operating Voltage Tolerance + | 1.5% |
| Output Current Max | 0.8A |
| Output Voltage Nom. | 3.3V |
| Primary Input Voltage | 4.3V |
| Supply Voltage Max | 7V |
| Supply Voltage Min | 2.5V |
| Voltage Regulator Type | Positive Fixed LDO |
Alternative Part Descriptions
- LDO Regulator Pos 3.3V 0.8A SOT223-5 | RS Components
- 800-mA, high-accuracy, low-dropout voltage regulator with enable | Texas Instruments
- LDO Voltage Regulator [Texas Instruments] LP3961EMP-3.3/NOPB LDO Voltage Regulator | Distrelec