Overview
The MC78PC33NTR is a low-dropout linear voltage regulator from onsemi, designed to provide a stable output voltage of 3.3V. This regulator is housed in a compact SOT-23 5-lead package, making it ideal for applications where board space is limited. The MC78PC33NTR is part of the MC78PC00 series, which is known for its ultra-low supply current, high ripple rejection, and excellent line regulation. These features make it suitable for a variety of applications, including power sources for handheld communication equipment, domestic appliances, and battery-powered devices.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Output Voltage | 3.234 to 3.366 | V |
| Input Voltage | Up to 8.0 | V |
| Supply Current in ON mode | Typical 35 μA | μA |
| Supply Current in OFF mode | Typical 0.1 μA | μA |
| Dropout Voltage | Typical 0.2 V @ IOUT = 100 mA | V |
| Ripple Rejection | Typical 70 dB @ f = 1 kHz | dB |
| Output Voltage Temperature Coefficient | Typical ±100 ppm/°C | ppm/°C |
| Line Regulation | Typical 0.05%/V | %/V |
| Output Voltage Accuracy | ±2.0% | % |
| Maximum Output Current | 150 mA | mA |
Key Features
- Ultra-low supply current: typical 35 μA in ON mode with no load.
- Standby mode: typical 0.1 μA.
- Low dropout voltage: typical 0.2 V @ IOUT = 100 mA.
- High ripple rejection: typical 70 dB @ f = 1 kHz.
- Low temperature-drift coefficient of output voltage: typical ±100 ppm/°C.
- Excellent line regulation: typical 0.05%/V.
- High accuracy output voltage: ±2.0%.
- Fast dynamic response to line and load changes.
- Small package: SOT-23 5 leads.
- Built-in chip enable circuit (CE input pin).
- Identical pinout to the LP2980/1/2.
- Pb-free packages available.
Applications
- Power source for cellular phones (GSM, CDMA, TDMA), cordless phones (PHS, DECT), and 2-way radios.
- Power source for domestic appliances such as cameras, VCRs, and camcorders.
- Power source for battery-powered equipment.
Q & A
- What is the output voltage of the MC78PC33NTR?
The output voltage of the MC78PC33NTR is 3.3V, with a range of 3.234V to 3.366V.
- What is the typical supply current in ON mode for the MC78PC33NTR?
The typical supply current in ON mode is 35 μA.
- What is the dropout voltage of the MC78PC33NTR at an output current of 100 mA?
The dropout voltage is typically 0.2 V at an output current of 100 mA.
- What is the ripple rejection of the MC78PC33NTR at 1 kHz?
The ripple rejection is typically 70 dB at 1 kHz.
- What is the maximum output current of the MC78PC33NTR?
The maximum output current is 150 mA.
- What package type is the MC78PC33NTR available in?
The MC78PC33NTR is available in a SOT-23 5-lead package.
- Does the MC78PC33NTR have a built-in chip enable circuit?
Yes, the MC78PC33NTR has a built-in chip enable circuit (CE input pin).
- Is the MC78PC33NTR available in Pb-free packages?
Yes, Pb-free packages are available for the MC78PC33NTR.
- What are some common applications for the MC78PC33NTR?
Common applications include power sources for cellular phones, cordless phones, 2-way radios, domestic appliances, and battery-powered equipment.
- What is the temperature range for the MC78PC33NTR?
The operating temperature range is from -40°C to +85°C.
