XC6121D349ER-G

Product Overview

Category

XC6121D349ER-G belongs to the category of voltage regulators.

Use

It is commonly used for regulating voltage in electronic circuits.

Characteristics

• Input Voltage Range: 2.5V to 6.0V
• Output Voltage Range: 1.2V to 5.5V
• Maximum Output Current: 150mA
• Low Dropout Voltage: 200mV at 100mA
• Low Quiescent Current: 30μA (typical)
• Package Type: SOT-23-5
• Operating Temperature Range: -40°C to +85°C

Package and Quantity

The XC6121D349ER-G comes in a SOT-23-5 package. It is typically sold in reels containing a specific quantity, usually 3000 units per reel.

Specifications

• Input Voltage Range: 2.5V to 6.0V
• Output Voltage Range: 1.2V to 5.5V
• Maximum Output Current: 150mA
• Dropout Voltage: 200mV at 100mA
• Quiescent Current: 30μA (typical)
• Line Regulation: ±0.3% (typical)
• Load Regulation: ±0.5% (typical)
• Ripple Rejection Ratio: 70dB (typical)
• Output Noise Voltage: 30μVrms (typical)
• Short Circuit Protection: Yes
• Thermal Shutdown: Yes

Pin Configuration

The XC6121D349ER-G has a total of five pins arranged as follows:

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Pin 1: VIN (Input Voltage) Pin 2: GND (Ground) Pin 3: EN (Enable) Pin 4: NC (No Connection) Pin 5: VOUT (Output Voltage)

Functional Features

• Low dropout voltage ensures efficient regulation even with small input-output voltage differentials.
• Low quiescent current minimizes power consumption in standby or idle modes.
• Short circuit protection prevents damage to the regulator and connected components in case of a short circuit.
• Thermal shutdown feature protects the device from overheating.

Advantages and Disadvantages

Advantages

• Wide input voltage range allows for flexibility in various applications.
• Low dropout voltage enables efficient voltage regulation.
• Small package size (SOT-23-5) makes it suitable for space-constrained designs.
• Short circuit protection enhances system reliability.
• Thermal shutdown feature prevents overheating.

Disadvantages

• Maximum output current of 150mA may limit its use in high-power applications.
• Limited pin configuration options may restrict certain circuit designs.

Working Principles

The XC6121D349ER-G is a linear voltage regulator that operates by comparing the output voltage to a reference voltage. It adjusts the resistance between the input and output to maintain a stable output voltage, regardless of changes in the input voltage or load conditions. The enable pin allows for control of the regulator's operation, enabling or disabling the output as required.

Application Field Plans

The XC6121D349ER-G can be used in various electronic devices and systems that require regulated voltage levels. Some potential application fields include:

1. Portable Electronics: Smartphones, tablets, portable media players, and other battery-powered devices benefit from the XC6121D349ER-G's low dropout voltage and low quiescent current, extending battery life.

2. IoT Devices: Internet of Things (IoT) devices often operate on low voltages and have limited power budgets. The XC6121D349ER-G's efficiency and small package size make it suitable for IoT applications.

3. Automotive Electronics: The XC6121D349ER-G's wide input voltage range, short circuit protection, and thermal shutdown feature make it suitable for automotive applications where stable voltage regulation is crucial.

4. Industrial Control Systems: The regulator's stability, low noise, and protection features make it suitable for use in industrial control systems that require precise and reliable voltage regulation.

Alternative Models

• XC6121D349GR-G
• XC6121D349HR-G
• XC6121D349JR-G

These alternative models offer similar specifications and functionality to the XC6121D349ER-G, providing options for different package types or minor variations in performance characteristics.

In conclusion, the XC6121D349ER-G is a voltage regulator with a wide input voltage range, low dropout voltage, and low quiescent current. It comes in a compact SOT-23-5 package and offers various functional features such as short circuit protection and thermal shutdown. Its application field plans include portable electronics, IoT devices, automotive electronics, and industrial control systems. Alternative models are available