LP2975IMM-3.3

Overview

Product Category

LP2975IMM-3.3 belongs to the category of integrated voltage regulators.

Use

The LP2975IMM-3.3 is primarily used for regulating voltage in electronic circuits.

Characteristics

• Integrated voltage regulator
• Regulates voltage to a constant 3.3V output
• Small form factor (package)
• High efficiency
• Low dropout voltage

Package and Quantity

LP2975IMM-3.3 is available in a small outline, surface-mount package. The package type is SOT-23. It is typically sold in reels or tubes containing multiple units.

Specifications

• Input Voltage Range: 2.7V to 10V
• Output Voltage: 3.3V
• Maximum Output Current: 150mA
• Dropout Voltage: 200mV (typical)
• Quiescent Current: 75µA (typical)
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The LP2975IMM-3.3 has three pins: 1. VIN (Input Voltage) 2. GND (Ground) 3. VOUT (Output Voltage)

Functional Features

• Low dropout voltage allows for efficient regulation even with low input voltages.
• Built-in thermal shutdown protection prevents damage due to excessive heat.
• Short-circuit current limit protects the device and the circuit from overcurrent conditions.
• Low quiescent current ensures minimal power consumption when the device is not actively regulating voltage.

Advantages

• Small form factor makes it suitable for space-constrained applications.
• High efficiency results in less power dissipation and longer battery life.
• Wide input voltage range allows for flexibility in various applications.
• Thermal shutdown protection enhances reliability and safety.

Disadvantages

• Limited maximum output current may not be suitable for high-power applications.
• Dropout voltage of 200mV may affect performance in low voltage scenarios.

Working Principles

The LP2975IMM-3.3 operates by comparing the output voltage to a reference voltage and adjusting the internal circuitry to maintain a constant 3.3V output. It utilizes a feedback mechanism to continuously monitor and regulate the output voltage.

Application Field Plans

The LP2975IMM-3.3 is commonly used in various electronic devices, including: 1. Battery-powered devices such as portable audio players and handheld gaming consoles. 2. IoT (Internet of Things) devices requiring stable voltage supply. 3. Embedded systems and microcontroller-based projects. 4. Automotive electronics, where regulated voltage is crucial for reliable operation.

Alternative Models

1. LM1117-3.3: Similar voltage regulator with higher maximum output current (800mA).
2. MCP1700-3302E/TO: Low dropout voltage regulator with similar specifications.
3. TPS73633DBVR: Ultra-low quiescent current regulator with comparable output voltage.

Note: The above alternative models are provided as examples and may have different package types or additional features.

In conclusion, the LP2975IMM-3.3 is an integrated voltage regulator that provides efficient and reliable voltage regulation at a constant 3.3V output. Its small form factor, wide input voltage range, and low dropout voltage make it suitable for various electronic applications. However, its limited maximum output current and dropout voltage may restrict its use in certain high-power or low voltage scenarios.