LM723H/NOPB

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Regulator
• Characteristics: Adjustable, Precision, Positive Voltage Regulator
• Package: TO-100 Metal Can
• Essence: The LM723H/NOPB is a versatile voltage regulator IC that can be used in various applications requiring precise and adjustable positive voltage regulation.
• Packaging/Quantity: Available in tubes or reels, with varying quantities depending on the supplier.

Specifications

• Input Voltage Range: 40V to 60V
• Output Voltage Range: 2V to 37V
• Output Current: Up to 150mA
• Line Regulation: 0.01%/V
• Load Regulation: 0.1%/mA
• Temperature Range: -55°C to +125°C
• Package Type: TO-100 Metal Can

Pin Configuration

The LM723H/NOPB has a total of 14 pins. Here is the detailed pin configuration:

1. Vref: Reference Voltage Output
2. Comp: Compensation Terminal for Error Amplifier
3. Inv: Inverting Input Terminal for Error Amplifier
4. Non-Inv: Non-Inverting Input Terminal for Error Amplifier
5. Vout: Output Voltage
6. Isense: Current Sense Terminal
7. Gnd: Ground
8. Vz: Zener Diode Connection
9. Vcc: Positive Supply Voltage
10. Vadj: Voltage Adjustment Terminal
11. Vref: Reference Voltage Output
12. Vref: Reference Voltage Output
13. Vref: Reference Voltage Output
14. Vref: Reference Voltage Output

Functional Features

• Adjustable Output Voltage: The LM723H/NOPB allows precise adjustment of the output voltage within a wide range, making it suitable for various applications.
• Current Limiting: It incorporates current limiting functionality to protect the circuit from excessive current flow.
• Short Circuit Protection: The IC is designed to withstand short circuits without damage.
• Thermal Shutdown: It includes thermal shutdown protection to prevent overheating and potential damage.

Advantages

• Wide Input Voltage Range: The LM723H/NOPB can operate with input voltages ranging from 40V to 60V, providing flexibility in different power supply setups.
• High Precision: It offers excellent voltage regulation accuracy, ensuring stable and reliable output voltages.
• Adjustable Output: The ability to adjust the output voltage allows customization according to specific requirements.
• Robust Design: The IC is built to withstand harsh operating conditions, making it suitable for industrial applications.

Disadvantages

• Low Output Current: With a maximum output current of 150mA, the LM723H/NOPB may not be suitable for high-power applications.
• Limited Output Voltage Range: While adjustable, the output voltage range is limited to 2V to 37V, which may not meet the requirements of certain applications.

Working Principles

The LM723H/NOPB operates as a linear voltage regulator. It compares the reference voltage (Vref) with the feedback voltage obtained from the output terminal (Vout). Any difference between these voltages is amplified and used to control the pass transistor, adjusting its conductivity to maintain the desired output voltage.

Application Field Plans

The LM723H/NOPB finds applications in various fields, including:

1. Power Supply Units: It can be used in power supply units to regulate the output voltage and ensure stability.
2. Battery Chargers: The IC can be employed in battery chargers to provide precise voltage regulation during charging processes.
3. Audio Amplifiers: It can be utilized in audio amplifiers to maintain a constant and accurate supply voltage for optimal audio performance.
4. Industrial Control Systems: The LM723H/NOPB is suitable for industrial control systems that require precise voltage regulation in harsh environments.

Alternative Models

Here are some alternative models that can be considered:

1. LM317: Adjustable Positive Voltage Regulator with higher output current capability.
2. LM7805: Fixed 5V Positive Voltage Regulator for applications requiring a specific output voltage.
3. LT1083: Adjustable Linear Regulator with higher output current and lower dropout voltage.

These alternatives offer different features and specifications, allowing users to choose the most suitable option for their specific requirements.

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