LTC1148CN-3.3#PBF

Product Overview

Category

The LTC1148CN-3.3#PBF belongs to the category of integrated circuits (ICs) and specifically falls under the voltage regulators category.

Use

This product is primarily used for voltage regulation in various electronic devices and systems.

Characteristics

• Input Voltage Range: 2.7V to 10V
• Output Voltage: 3.3V
• Maximum Output Current: 800mA
• Dropout Voltage: 300mV
• Low Quiescent Current: 85µA
• Package Type: DIP-8
• Operating Temperature Range: -40°C to 85°C

Package and Quantity

The LTC1148CN-3.3#PBF is available in a DIP-8 package, which stands for Dual In-line Package with 8 pins. It is commonly used for through-hole mounting on PCBs. The product is typically sold in reels or tubes containing multiple units.

Specifications

• Input Voltage Range: 2.7V to 10V
• Output Voltage: 3.3V ±2%
• Output Current: Up to 800mA
• Dropout Voltage: 300mV at 800mA
• Quiescent Current: 85µA
• Line Regulation: ±0.02% typical
• Load Regulation: ±0.1% typical
• Ripple Rejection: 70dB typical
• Shutdown Current: <1µA
• Thermal Shutdown Protection: Yes
• Short-Circuit Protection: Yes
• Package: DIP-8

Pin Configuration

The LTC1148CN-3.3#PBF has the following pin configuration:

___________ NC | 1 8 | Vout Vin | 2 7 | GND NC | 3 6 | NC NC | 4 5 | NC ‾‾‾‾‾‾‾‾‾‾‾‾

Functional Features

• Low dropout voltage: The LTC1148CN-3.3#PBF exhibits a low dropout voltage of only 300mV at 800mA output current, ensuring efficient power conversion.
• Low quiescent current: With a quiescent current of only 85µA, this voltage regulator minimizes power consumption in standby or idle modes.
• Thermal shutdown protection: The device incorporates thermal shutdown protection to prevent damage due to excessive temperature.
• Short-circuit protection: It features built-in short-circuit protection, safeguarding the regulator and the connected circuitry.

Advantages and Disadvantages

Advantages

• Wide input voltage range allows compatibility with various power sources.
• High output current capability enables it to power a wide range of electronic components.
• Low dropout voltage ensures efficient power conversion even with small voltage differentials.
• Low quiescent current minimizes power consumption during standby or idle periods.
• Thermal shutdown and short-circuit protection enhance reliability and safety.

Disadvantages

• Limited output voltage options, as it is specifically designed for 3.3V output.
• DIP-8 package may not be suitable for space-constrained applications.
• Requires external components for proper operation, adding complexity to the design.

Working Principles

The LTC1148CN-3.3#PBF is a linear voltage regulator that uses a P-channel MOSFET pass transistor to regulate the output voltage. It operates by comparing the feedback voltage with a reference voltage, adjusting the pass transistor's resistance to maintain a stable output voltage. The device employs a feedback loop to continuously monitor and regulate the output voltage, compensating for changes in input voltage and load conditions.

Detailed Application Field Plans

The LTC1148CN-3.3#PBF finds applications in various electronic systems where stable and regulated power supply is required. Some potential application fields include:

1. Battery-powered devices: Portable electronics such as smartphones, tablets, and portable media players can benefit from the LTC1148CN-3.3#PBF's efficient power conversion and low quiescent current.
2. Industrial automation: Control systems, sensors, and actuators often require reliable and regulated power, making this voltage regulator suitable for industrial automation applications.
3. Automotive electronics: In-car entertainment systems, navigation devices, and other automotive electronics can utilize the LTC1148CN-3.3#PBF for stable power supply.
4. IoT devices: Internet of Things (IoT) devices, including smart home devices, wearables, and connected sensors, can benefit from the compact size and low power consumption of this voltage regulator.

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the