Overview
The MC78LC00 series, specifically the MC78PC30NTRG, is a line of fixed output low dropout linear regulators designed by onsemi. These regulators are optimized for handheld communication equipment and portable battery-powered applications, where low quiescent current is crucial. The MC78LC00 series features an ultra-low quiescent current of 1.1 μA, making them highly efficient for power-sensitive applications.
The device includes a voltage reference unit, an error amplifier, a PMOS power transistor, and resistors for setting the output voltage. It is housed in a micro-miniature Thin SOT23-5 surface mount package, which is Pb-free and suitable for various environmental conditions.
Key Specifications
| Characteristic | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Output Voltage (TA = 25°C, Iout = 1.0 mA) | Vout | 2.94 | 3.0 | 3.06 | V |
| Output Voltage (TA = −40°C to 85°C) | Vout | 2.910 | 3.0 | 3.09 | V |
| Line Regulation (Vin = VO(nom.) + 1.0 V to 12 V, Iout = 1.0 mA) | Regline | -0.05 | - | 0.2 | %/V |
| Load Regulation (Iout = 1.0 mA to 10 mA) | Regload | -40 | - | 60 | mV |
| Output Current | Iout | - | - | 100 | mA |
| Dropout Voltage (Iout = 1.0 mA, Measured at Vout - 3.0%) | Vin-Vout | - | - | 30 | mV |
| Quiescent Current (Iout = 1.0 mA to IO(nom.)) | IQ | 1.1 | - | 3.6 | μA |
| Output Voltage Temperature Coefficient | Tc | -100 | - | - | ppm/°C |
| Output Noise Voltage (f = 1.0 kHz to 100 kHz) | Vn | - | - | 89 | μVrms |
| Maximum Operating Voltage | Vin | - | - | 12 | V |
| Operating Temperature Range | TA | -40 | - | 85 | °C |
Key Features
- Ultra-low quiescent current of 1.1 μA typical, making it suitable for battery-powered devices.
- Excellent line and load regulation.
- Maximum operating voltage of 12 V.
- Low output voltage options available (e.g., 1.8 V, 2.5 V, 3.0 V, 3.3 V).
- High accuracy output voltage with a tolerance of ±2.5%.
- Industrial temperature range of -40°C to 85°C.
- Surface mount packages (SOT-23, 5-pin) which are Pb-free.
- ESD protection exceeding Human Body Model 2000 V per MIL-STD-883, Method 3015.
Applications
- Battery-powered instruments.
- Hand-held instruments.
- Camcorders and cameras.
- Portable communication equipment.
- Any application requiring low quiescent current and high efficiency.
Q & A
- What is the typical quiescent current of the MC78LC00 series?
The typical quiescent current is 1.1 μA.
- What are the available output voltage options for the MC78LC00 series?
The available output voltage options include 1.8 V, 2.5 V, 3.0 V, 3.3 V, among others.
- What is the maximum operating voltage for the MC78LC00 series?
The maximum operating voltage is 12 V.
- What is the operating temperature range for the MC78LC00 series?
The operating temperature range is -40°C to 85°C.
- What type of package is used for the MC78LC00 series?
The device is housed in a micro-miniature Thin SOT23-5 surface mount package.
- Do the MC78LC00 series regulators require specific output capacitors?
No, they do not require specific Equivalent Series Resistance (ESR) or a minimum output current. Capacitors with ESRs ranging from a few mΩ to 3.0 Ω can be used.
- What is the minimum decoupling capacitor value recommended for the MC78LC00 series?
The minimum decoupling capacitor value is 0.1 μF.
- How should the Vin and GND lines be configured for optimal performance?
The Vin and GND lines should be sufficiently wide to avoid picking up noise or causing the regulator to malfunction.
- What is the maximum power dissipation supported by the MC78LC00NTR package?
The maximum power dissipation supported by the package is dependent on the board design and layout, but it can dissipate up to 357 mW at 25°C.
- Does the MC78LC00 series have ESD protection?
