LTC3624EDD-25#PBF

Product Overview

Category

The LTC3624EDD-25#PBF belongs to the category of voltage regulators.

Use

This product is commonly used in electronic devices to regulate and stabilize voltage levels.

Characteristics

• Input Voltage Range: 2.7V to 5.5V
• Output Voltage: 2.5V
• Maximum Output Current: 1A
• Low Dropout Voltage: 200mV at 1A
• Quiescent Current: 20µA
• Shutdown Current: <1µA
• Package Type: DFN-10
• Operating Temperature Range: -40°C to 125°C

Packaging/Quantity

The LTC3624EDD-25#PBF is available in a DFN-10 package. It is typically sold in reels or tubes, with a quantity of 250 units per reel/tube.

Specifications

• Input Voltage Range: 2.7V to 5.5V
• Output Voltage: 2.5V
• Output Current: Up to 1A
• Dropout Voltage: 200mV at 1A
• Quiescent Current: 20µA
• Shutdown Current: <1µA
• Efficiency: Up to 95%
• Ripple Rejection: 70dB at 1kHz
• Operating Temperature Range: -40°C to 125°C
• Package Type: DFN-10

Detailed Pin Configuration

The LTC3624EDD-25#PBF has the following pin configuration:

1. VIN: Input voltage pin
2. GND: Ground pin
3. SW: Switching node pin
4. FB: Feedback pin
5. EN: Enable pin
6. SS: Soft-start pin
7. PG: Power good pin
8. VOUT: Output voltage pin
9. VOUT: Output voltage pin
10. GND: Ground pin

Functional Features

• Wide input voltage range allows for compatibility with various power sources.
• Low dropout voltage ensures efficient power conversion even at low input voltages.
• Low quiescent current minimizes power consumption during standby or idle modes.
• Shutdown mode reduces power consumption to an extremely low level when the regulator is not in use.
• Soft-start feature prevents excessive inrush current during startup, protecting the circuitry.
• Power good indicator provides a signal indicating the output voltage is within the desired range.

Advantages and Disadvantages

Advantages

• Wide input voltage range enables flexibility in power source selection.
• Low dropout voltage ensures efficient power conversion.
• Low quiescent current minimizes power consumption.
• Shutdown mode reduces power consumption to a minimum.
• Soft-start feature protects the circuitry during startup.
• Power good indicator provides feedback on output voltage stability.

Disadvantages

• Limited output current capacity of 1A may not be sufficient for high-power applications.
• DFN-10 package may require specialized equipment for soldering and handling.

Working Principles

The LTC3624EDD-25#PBF operates as a step-down voltage regulator. It takes an input voltage within the range of 2.7V to 5.5V and converts it to a stable 2.5V output voltage. The internal circuitry utilizes a switching mechanism to efficiently regulate the voltage while minimizing power losses. The regulator maintains a low dropout voltage, ensuring efficient power conversion even at low input voltages. The soft-start feature gradually ramps up the output voltage to prevent excessive inrush current during startup. The power good indicator provides a signal indicating the output voltage is within the desired range.

Detailed Application Field Plans

The LTC3624EDD-25#PBF is suitable for a wide range of applications, including but not limited to:

1. Battery-powered devices: The low dropout voltage and wide input voltage range make it ideal for portable electronic devices powered by batteries.
2. IoT devices: With its low quiescent current and efficient power conversion, the regulator can be used in IoT devices that require long battery life.
3. Industrial automation: The stability and reliability of the output voltage make it suitable for use in industrial automation systems.
4. Automotive electronics: The wide operating temperature range allows for use in automotive applications where temperature fluctuations are common.
5. Consumer electronics: The small package size and high efficiency make it suitable for various consumer electronic devices.

Detailed and Complete Alternative Models

1. LT1763: This voltage regulator offers similar specifications and features, with an adjustable output voltage option.
2. LM1117: A popular alternative with a fixed 2.5V output voltage and higher output current capacity.
3. TPS7A4901: This regulator provides a fixed 2.5V output voltage and offers enhanced ripple rejection performance.