Overview
The MC78LC50NTR is a Micropower Low Dropout Voltage Regulator produced by onsemi. This device is specifically designed for handheld communication equipment and portable battery-powered applications that require low quiescent current. It features a compact TSOT-23-5 surface mount package and is optimized for use with low-cost ceramic capacitors, requiring a minimum output capacitor of 0.1 µF. The regulator includes a voltage reference unit, an error amplifier, a PMOS power transistor, and resistors for setting the output voltage.
Key Specifications
| Attribute | Value |
|---|---|
| Input Voltage - Max | 12 V |
| Output Voltage Fixed | 5 V |
| Dropout Voltage - Max | 38 mV |
| Output Current - Max | 80 mA |
| Rated Power | 140 mW |
| Operating Temp Range | -55°C to +150°C (junction), -40°C to 85°C (industrial) |
| Regulator Topology | Fixed |
| Quiescent Current | 1.1 µA (typical), 3.9 µA (max) |
| No. of Outputs | Single |
| Output Noise | 89 µV |
| Load Regulation | 90 mV |
| Line Regulation (%) | 0.2% |
| Package Style | TSOT-23-5 |
| Mounting Method | Surface Mount |
Key Features
- Low quiescent current of 1.1 µA typical
- Excellent line and load regulation
- Maximum operating voltage of 12 V
- Low output voltage option
- High accuracy output voltage of 2.5%
- Industrial temperature range of -40°C to 85°C
- Surface mount packages (TSOT-23-5, 5-pin)
- Pb-free devices
Applications
- Battery powered instruments
- Hand-held instruments
Q & A
- What is the maximum input voltage for the MC78LC50NTR?
The maximum input voltage for the MC78LC50NTR is 12 V.
- What is the typical quiescent current of the MC78LC50NTR?
The typical quiescent current is 1.1 µA.
- What is the maximum output current of the MC78LC50NTR?
The maximum output current is 80 mA.
- What is the operating temperature range for the MC78LC50NTR?
The industrial operating temperature range is -40°C to 85°C, and the junction temperature range is -55°C to +150°C.
- What type of capacitors can be used with the MC78LC50NTR?
The device can be used with low-cost ceramic capacitors and requires a minimum output capacitor of 0.1 µF.
- What is the package style of the MC78LC50NTR?
The package style is TSOT-23-5, a surface mount package.
- Is the MC78LC50NTR Pb-free?
- What are some typical applications for the MC78LC50NTR?
Typical applications include battery-powered instruments, hand-held instruments, and camcorders and cameras.
- What is the dropout voltage of the MC78LC50NTR?
The maximum dropout voltage is 38 mV.
- How accurate is the output voltage of the MC78LC50NTR?
The output voltage accuracy is 2.5%.
