MCP1726-1202E/SNVAO

Product Overview

Category

The MCP1726-1202E/SNVAO belongs to the category of voltage regulators.

Use

This product is primarily used for regulating voltage in electronic circuits.

Characteristics

• Input Voltage Range: 4.5V to 16V
• Output Voltage: 1.2V
• Maximum Output Current: 1A
• Low Dropout Voltage: 500mV (typical)
• Low Quiescent Current: 120µA (typical)
• Package Type: SOT-23-5
• Operating Temperature Range: -40°C to +125°C

Packaging/Quantity

The MCP1726-1202E/SNVAO is available in a SOT-23-5 package. It is typically sold in reels containing a quantity of 3000 units per reel.

Specifications

• Input Voltage Range: 4.5V to 16V
• Output Voltage: 1.2V ±2%
• Output Current: Up to 1A
• Dropout Voltage: 500mV (typical) at 1A load
• Quiescent Current: 120µA (typical)
• Line Regulation: 0.05%/V (typical)
• Load Regulation: 0.2% (typical)
• Ripple Rejection: 70dB (typical)
• Thermal Shutdown Protection: Yes
• Short Circuit Protection: Yes
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The MCP1726-1202E/SNVAO has a total of five pins arranged as follows:

```

---

| | --| |-- |____| ```

Pin 1: VIN (Input Voltage) Pin 2: GND (Ground) Pin 3: VOUT (Output Voltage) Pin 4: BYP (Bypass Capacitor) Pin 5: EN (Enable)

Functional Features

• Low dropout voltage ensures efficient regulation even with low input-output voltage differentials.
• Low quiescent current minimizes power consumption in standby or idle modes.
• Thermal shutdown protection prevents damage due to excessive temperature.
• Short circuit protection safeguards the regulator and connected components from damage.

Advantages and Disadvantages

Advantages

• Wide input voltage range allows for versatile applications.
• High output current capability enables driving various loads.
• Small package size (SOT-23-5) facilitates space-constrained designs.
• Excellent line and load regulation ensure stable output voltage.

Disadvantages

• Limited output voltage options restrict flexibility in certain applications.
• Higher dropout voltage compared to some alternative models may result in reduced efficiency in low voltage scenarios.

Working Principles

The MCP1726-1202E/SNVAO is a linear voltage regulator that operates by maintaining a constant output voltage despite variations in the input voltage and load conditions. It achieves this through a combination of feedback control, error amplification, and pass transistor operation. The regulator continuously monitors the output voltage and adjusts the pass transistor's resistance to maintain the desired output voltage level.

Detailed Application Field Plans

The MCP1726-1202E/SNVAO finds application in various electronic systems requiring stable and regulated power supply. Some common application fields include:

1. Battery-powered devices: Portable electronics such as smartphones, tablets, and wearable devices benefit from the MCP1726-1202E/SNVAO's efficient voltage regulation, extending battery life.

2. Industrial automation: Control systems, sensors, and actuators in industrial automation equipment require reliable and precise voltage regulation, making the MCP1726-1202E/SNVAO an ideal choice.

3. Automotive electronics: The regulator's wide input voltage range and robust performance make it suitable for automotive applications, including infotainment systems, lighting controls, and engine management systems.

4. Communication systems: Wireless routers, base stations, and other communication devices benefit from the MCP1726-1202E/SNVAO's stable voltage output, ensuring reliable operation.

Detailed and Complete Alternative Models

1. LM1117-3.3: This voltage regulator offers a fixed 3.3V output with similar specifications to the MCP1726-1202E/SNVAO. It is available in various package options, including SOT-223 and TO-220.

2. LT1763: This low dropout linear regulator provides adjustable output voltage and high output current capability. It operates over a wide input voltage range and is available in small packages like SOT-23 and DFN.

3. TPS7A4700: This ultra-low noise linear regulator offers adjustable output voltage and excellent line and load regulation. It is designed for sensitive applications such as audio amplifiers and data acquisition systems.