LM723CN Voltage Regulator
The LM723CN is a versatile voltage regulator designed to serve as a precision, adjustable power supply, and current regulation device. It is capable of providing a stable output voltage from 2V up to 37V, with a maximum output current of 150mA internally, which can be enhanced with external pass transistors for higher currents. This makes it suitable for a broad range of applications, including power management in electronic systems, battery chargers, and adjustable power supplies.
Features:
- Input Voltage Up to 40V.
- Output Voltage Adjustable From 2 to 37V.
- Positive or Negative Supply Operation.
- Series, Shunt, Switching or Floating Operation.
- Output Current to 150mA Without External Pass Transistor.
- ADJUSTABLE CURRENT LIMITING.
Specifications:
| Type | Programmable Voltage Regulator |
| Package | 14-lDIP |
| Voltage – Input (Max) | 40V |
| Voltage – Output (Min/Fixed) | 2V |
| Voltage – Output (Max) | 37V |
| Current – Output | 150mA |
| Current – Quiescent (Iq) | 4 mA |
| Temperature Range | 0°C ~ 70°C |
| Dropout Voltage | 3V |
| Load Regulation | 0.10% |
| PSRR | 86db ~ 74dB (100Hz ~ 10kHz) |
| Frequency Compensation | External network required |
Pin Configuration:
- NC: No connection.
- CURRENT LIMIT: Sets the current limit with an external resistor.
- CURRENT SENSE: Monitors output current via a sensing resistor.
- INVERTING INPUT: Inverting input for internal comparator; used for feedback.
- NON-INVERTING INPUT: Non-inverting input for comparator; reference voltage comparison.
- VREF: Provides stable internal reference voltage (approx. 7.15V).
- V-: Connects to negative power supply or ground.
- NC: No connection.
- Vz: Sets Zener diode reference voltage for regulation.
- Vout: Provides regulated output voltage.
- Vc: Connects to frequency compensation network.
- V+: Connects to positive power supply.
- FREQUENCY COMPENSATION: Connects compensation network to stabilize regulator.
- NC: No connection.
Footprint:
Applications:
- Power supply designs.
- Battery chargers.
- Voltage reference circuits.
- Overvoltage and overcurrent protection.
- Linear regulators.
- Lab equipment and test instruments.
- Remote shutdown circuits.
Package Include:
1x LM723CN Voltage Regulator


Applications:
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