LDLN025M33R

Product Overview

Category

LDLN025M33R belongs to the category of voltage regulators.

Use

It is primarily used for regulating and stabilizing voltage in electronic circuits.

Characteristics

• Input Voltage Range: 2.5V - 6V
• Output Voltage: 3.3V
• Maximum Output Current: 250mA
• Low Dropout Voltage: 200mV (typical)
• Low Quiescent Current: 50µA (typical)
• Package Type: SOT-23
• Operating Temperature Range: -40°C to +85°C

Package and Quantity

The LDLN025M33R comes in a SOT-23 package. It is typically sold in reels containing 3000 units.

Specifications

• Input Voltage Range: 2.5V - 6V
• Output Voltage: 3.3V ± 2%
• Output Current: Up to 250mA
• Dropout Voltage: 200mV (typical) at 100mA load
• Line Regulation: 0.05%/V (typical)
• Load Regulation: 0.1%/mA (typical)
• Quiescent Current: 50µA (typical)
• Ripple Rejection Ratio: 70dB (typical)
• Thermal Shutdown Protection: Yes
• Short Circuit Protection: Yes

Detailed Pin Configuration

The LDLN025M33R has three pins:

1. VIN: Input voltage pin
2. GND: Ground pin
3. VOUT: Output voltage pin

Functional Features

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

Advantages

• Wide input voltage range allows for versatile applications.
• Stable output voltage ensures reliable performance of downstream components.
• Low dropout voltage enables efficient power conversion.
• Small package size (SOT-23) facilitates space-constrained designs.
• Thermal shutdown and short circuit protection enhance overall system reliability.

Disadvantages

• Limited maximum output current may restrict usage in high-power applications.
• Output voltage accuracy could be improved for more precise voltage regulation.

Working Principles

The LDLN025M33R is a linear voltage regulator that utilizes a pass transistor to regulate the output voltage. It operates by comparing the reference voltage with the feedback voltage, adjusting the pass transistor's resistance to maintain a stable output voltage.

Detailed Application Field Plans

The LDLN025M33R can be used in various applications, including but not limited to:

1. Battery-powered devices: Provides regulated voltage for microcontrollers, sensors, and other low-power components.
2. Portable consumer electronics: Ensures stable power supply for smartphones, tablets, and wearable devices.
3. Industrial control systems: Regulates voltage in control boards, sensors, and actuators.
4. Automotive electronics: Suitable for powering infotainment systems, lighting modules, and other automotive components.
5. IoT devices: Enables efficient power management in smart home devices, environmental sensors, etc.

Detailed and Complete Alternative Models

1. LD1117S33TR: Similar specifications, SOT-223 package
2. LM1117IMPX-3.3/NOPB: Comparable characteristics, SOT-89 package
3. MCP1700T-3302E/TT: Alternative option, SOT-23 package

(Note: This list is not exhaustive and other alternative models may exist.)

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