# μA723

> Voltage regulator integrated circuit

**Wikidata**: [Q115793963](https://www.wikidata.org/wiki/Q115793963)  
**Source**: https://4ort.xyz/entity/a723

## Summary
The μA723 is a voltage regulator integrated circuit developed by Fairchild Semiconductor. It is designed to function as a linear regulator or as part of a switched-mode power supply. The component is also recognized by several aliases, including uA723, 723, and KA723, and is classified as a foundational type of integrated circuit.

## Key Facts
- **Developer:** Fairchild Semiconductor
- **Classification:** Subclass of integrated circuit and voltage regulator
- **Primary Applications:** Linear regulator and switched-mode power supply
- **Aliases:** uA723, 723, KA723
- **Related Series:** Associated with the Soviet "142 series integrated circuits," a class of linear voltage regulator circuits introduced in 1970
- **Geographic Context:** Related series (142) originated in the Soviet Union (until 1991) and subsequently Russia
- **Circuit Type:** Electronic circuit formed on a small, flat piece of semiconductor material
- **Commons Category:** 723 voltage regulator

## FAQs
### Q: What is the primary function of the μA723?
A: The μA723 serves as a voltage regulator integrated circuit. It is utilized in electronic systems to maintain a consistent voltage level, functioning specifically as a linear regulator or within switched-mode power supplies.

### Q: Who developed the μA723?
A: The μA723 was developed by Fairchild Semiconductor, a prominent entity in the semiconductor industry.

### Q: Are there equivalent or related versions of this component?
A: Yes, the μA723 is related to the "142 series integrated circuits," which were linear voltage regulator circuits produced in the Soviet Union starting in 1970. It is also known by the aliases uA723, 723, and KA723.

## Why It Matters
The μA723 holds significance in the field of electronics as a fundamental building block for power management. As a product of Fairchild Semiconductor, it represents a standard in integrated circuit design for voltage regulation. Its ability to function in both linear and switched-mode configurations makes it a versatile tool for engineers designing power supplies.

The component's impact is further highlighted by its international reach and adaptation. The existence of the Soviet "142 series integrated circuits," which are linear voltage regulators related to the μA723 and debuted in 1970, demonstrates the design's global influence and utility during the Cold War era. This replication indicates that the μA723 architecture was viewed as a reliable standard for voltage regulation. By consolidating voltage regulation functions onto a single piece of semiconductor material, the μA723 helped advance the miniaturization and reliability of electronic devices. Its various aliases (uA723, KA723) also suggest widespread adoption and second-sourcing across different manufacturers and markets.

## Notable For
- **Versatile Regulation:** Distinguished by its capability to operate in both linear regulator and switched-mode power supply topologies.
- **Heritage:** Developed by Fairchild Semiconductor, a pioneer in the集成电路 (integrated circuit) industry.
- **Global Adaptation:** Served as the basis for the Soviet "142 series" of integrated circuits, launched in 1970.
- **Nomenclature:** recognized globally under multiple aliases, including 723, uA723, and KA723.

## Body
### Development and Classification
The μA723 is an integrated circuit, defined as an electronic circuit formed on a small, flat piece of semiconductor material. It falls under the subclass of "integrated circuit" and "voltage regulator." The component was originally developed by **Fairchild Semiconductor**.

### Technical Applications
The device is designed for voltage regulation with specific utility in two primary areas:
*   **Linear Regulator:** Used to maintain a steady output voltage.
*   **Switched-Mode Power Supply:** Utilized in more complex power conversion systems.

### Related Series and History
The μA723 is closely associated with the **142 series integrated circuits**. This series represents a class of linear voltage regulator circuits.
*   **Inception:** The 142 series was established in 1970.
*   **Origin:** It was developed in the **Soviet Union** (effective until December 25, 1991) and later associated with **Russia** (starting December 25, 1991).

### Identification
The component is visually documented in the Wikimedia Commons category "723 voltage regulator." It is referenced across various platforms primarily in English (via Wikimedia Commons) and has a sitelink count of 1 in Wikidata.