LM3724IM5X-3.08

Overview

Category: Integrated Circuit (IC)

Use: Voltage Regulator

Characteristics: - Low dropout voltage - Low quiescent current - Thermal shutdown protection - Short-circuit current limit - Reverse battery protection - Small package size

Package: SOT-23-5

Essence: The LM3724IM5X-3.08 is a low dropout voltage regulator IC designed to provide a regulated output voltage even when the input voltage is very close to the output voltage.

Packaging/Quantity: The LM3724IM5X-3.08 is available in a SOT-23-5 package and is typically sold in reels of 3000 units.

Specifications

• Input Voltage Range: 2.5V to 6.0V
• Output Voltage: 3.08V
• Dropout Voltage: 200mV at 100mA load current
• Quiescent Current: 75µA (typical)
• Maximum Output Current: 250mA
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The LM3724IM5X-3.08 has the following pin configuration:

____ IN |1 | GND EN |2 | VOUT BP |3 | NC FB |4 | NC |5____|

Functional Features

1. Low Dropout Voltage: The LM3724IM5X-3.08 has a low dropout voltage, allowing it to regulate the output voltage even when the input voltage is only slightly higher than the desired output voltage.

2. Low Quiescent Current: The IC has a low quiescent current, minimizing power consumption when the load is light or idle.

3. Thermal Shutdown Protection: The LM3724IM5X-3.08 incorporates thermal shutdown protection, which prevents the IC from overheating and getting damaged under high temperature conditions.

4. Short-Circuit Current Limit: It features a short-circuit current limit to protect the IC and the load from excessive current in case of a short circuit.

5. Reverse Battery Protection: The IC is designed with reverse battery protection, ensuring that it remains undamaged even if the battery polarity is accidentally reversed.

Advantages

• Stable output voltage regulation
• Low power consumption
• Small package size for space-constrained applications
• Protection features enhance reliability and durability

Disadvantages

• Limited maximum output current (250mA)
• Input voltage range restricted to 2.5V to 6.0V

Working Principles

The LM3724IM5X-3.08 operates as a linear voltage regulator. It compares the output voltage with a reference voltage and adjusts the pass transistor accordingly to maintain a stable output voltage. The dropout voltage is minimized by utilizing a PNP pass transistor.

Detailed Application Field Plans

The LM3724IM5X-3.08 can be used in various applications where a stable regulated voltage is required. Some potential application fields include:

1. Battery-powered devices: Portable electronics, handheld instruments, and wireless communication devices.
2. Automotive electronics: Vehicle infotainment systems, dashboard displays, and lighting controls.
3. Industrial equipment: Sensors, actuators, and control systems.
4. Consumer electronics: Audio/video equipment, digital cameras, and gaming consoles.

Detailed and Complete Alternative Models

1. LM1117-3.3: A popular alternative with a fixed output voltage of 3.3V and higher maximum output current capability.
2. LP2985-3.08: Another alternative with a fixed output voltage of 3.08V and lower quiescent current.

These alternative models offer similar functionality and can be considered based on specific application requirements.

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