Overview
The MC79L15ABDR2G is a negative linear voltage regulator from onsemi, designed to provide a regulated negative voltage output. This device is part of the MC79L00A Series, which is known for its ease of use and affordability. It is suitable for various applications that require up to 100 mA of current. The regulator features internal thermal overload protection and short circuit current limiting, making it robust and reliable. No external components are typically required for operation, simplifying the design process.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Nominal Output Voltage | -15 | Vdc |
| Output Current (Typical) | 100 | mA |
| Input Voltage Range | -17.5 to -30 Vdc | Vdc |
| Load Regulation (1.0 mA ≤ IO ≤ 100 mA) | 150 mV (Typ), 300 mV (Max) | mV |
| Dropout Voltage (IO = 40 mA, TJ = +25°C) | 1.7 Vdc | Vdc |
| Ripple Rejection (f = 120 Hz, TJ = +25°C) | 37 dB (Typ), 42 dB (Max) | dB |
| Output Noise Voltage (10 Hz ≤ f ≤ 100 kHz, TA = +25°C) | 90 µV (Typ) | µV |
| Operating Temperature Range | -40°C to +125°C | °C |
| Package Type | SOIC-8 (Pb-Free) |
Key Features
- Internal Thermal Overload Protection: Shuts down the circuit when subjected to excessive power overload conditions.
- Internal Short Circuit Current Limiting: Protects the device from short circuit conditions.
- No External Components Required: Simplifies the design process by eliminating the need for additional components.
- Low Cost: An economical solution for applications requiring regulated negative voltage.
- Pb-Free Packages: Compliant with environmental regulations.
- Complementary Positive Regulators Available (MC78L00 Series): Offers flexibility in design by providing both negative and positive voltage regulation options.
Applications
The MC79L15ABDR2G is suitable for various applications where a regulated negative voltage is required, such as:
- On-card regulation: Provides a stable negative voltage source directly on the PCB.
- Industrial control systems: Used in control circuits that require a reliable negative voltage supply.
- Audio equipment: Can be used in audio circuits to provide a stable negative voltage for operational amplifiers and other components.
- Medical devices: Suitable for medical equipment that requires a regulated negative voltage source.
Q & A
- What is the nominal output voltage of the MC79L15ABDR2G?
The nominal output voltage is -15 Vdc.
- What is the maximum output current of the MC79L15ABDR2G?
The maximum output current is 100 mA.
- What is the input voltage range for the MC79L15ABDR2G?
The input voltage range is from -17.5 Vdc to -30 Vdc.
- Does the MC79L15ABDR2G require external components for operation?
No, typically no external components are required for operation.
- What kind of protection does the MC79L15ABDR2G have?
The device has internal thermal overload protection and short circuit current limiting.
- What is the dropout voltage of the MC79L15ABDR2G at 40 mA output current?
The dropout voltage is 1.7 Vdc at 40 mA output current.
- What is the ripple rejection of the MC79L15ABDR2G at 120 Hz?
The ripple rejection is typically 37 dB and up to 42 dB maximum at 120 Hz.
- What is the output noise voltage of the MC79L15ABDR2G?
The output noise voltage is typically 90 µV over the frequency range of 10 Hz to 100 kHz.
- What is the operating temperature range of the MC79L15ABDR2G?
The operating temperature range is from -40°C to +125°C.
- What package types are available for the MC79L15ABDR2G?
The device is available in SOIC-8 (Pb-Free) package.
