LT1317CS8#TRPBF

Product Overview

Category

LT1317CS8#TRPBF belongs to the category of integrated circuits (ICs).

Use

It is commonly used as a voltage step-up converter or boost converter.

Characteristics

• Input Voltage Range: 1.5V to 10V
• Output Voltage Range: Up to 34V
• Switching Frequency: 1.2MHz
• Package Type: 8-Lead SOIC
• Operating Temperature Range: -40°C to 85°C

Package and Quantity

LT1317CS8#TRPBF is available in an 8-Lead SOIC package. It is typically sold in reels containing a quantity of 2500 units.

Specifications

The specifications for LT1317CS8#TRPBF are as follows:

• Input Voltage Range: 1.5V to 10V
• Output Voltage Range: Up to 34V
• Switching Frequency: 1.2MHz
• Maximum Duty Cycle: 90%
• Quiescent Current: 80µA
• Shutdown Current: 0.1µA
• Soft-Start Time: 1ms
• Operating Temperature Range: -40°C to 85°C

Detailed Pin Configuration

The pin configuration of LT1317CS8#TRPBF is as follows:

1. VIN: Input Voltage Pin
2. GND: Ground Pin
3. SW: Switching Node Pin
4. FB: Feedback Pin
5. SS: Soft-Start Pin
6. VOUT: Output Voltage Pin
7. COMP: Compensation Pin
8. SHDN: Shutdown Pin

Functional Features

The LT1317CS8#TRPBF offers the following functional features:

• High efficiency voltage step-up conversion
• Wide input voltage range
• Adjustable output voltage
• Internal soft-start function
• Low quiescent current
• Shutdown mode for power saving
• Overvoltage protection
• Thermal shutdown protection

Advantages and Disadvantages

Advantages: - High efficiency conversion - Wide input voltage range allows for versatile applications - Adjustable output voltage provides flexibility - Internal soft-start function prevents excessive inrush current - Low quiescent current minimizes power consumption - Shutdown mode saves power when the converter is not in use - Overvoltage and thermal shutdown protection ensure safety

Disadvantages: - Limited maximum output voltage of 34V - Requires external compensation components for stability

Working Principles

The LT1317CS8#TRPBF operates as a voltage step-up converter. It uses a switching regulator topology to efficiently boost the input voltage to a higher output voltage. The internal control circuitry regulates the duty cycle of the switching transistor to maintain the desired output voltage.

When the input voltage is applied, the LT1317CS8#TRPBF starts switching at a fixed frequency. The energy from the input source is stored in an inductor during the ON state of the switching transistor. During the OFF state, the energy stored in the inductor is transferred to the output capacitor, resulting in a higher output voltage.

The feedback pin (FB) monitors the output voltage and adjusts the duty cycle accordingly to maintain a stable output. The soft-start pin (SS) controls the rise time of the output voltage during startup to prevent excessive inrush current.

Detailed Application Field Plans

The LT1317CS8#TRPBF can be used in various applications, including but not limited to:

1. Battery-powered devices: Boosting battery voltage to power higher voltage components.
2. LED lighting: Driving LEDs with higher voltage requirements.
3. Portable audio devices: Increasing voltage for audio amplifiers.
4. Industrial equipment: Powering sensors, actuators, and control circuits.
5. Automotive electronics: Voltage boosting for automotive applications.

Detailed and Complete Alternative Models

1. LT1308CS8#TRPBF
2. LT1317IS8#TRPBF
3. LT1308IS8#TRPBF
4. LT1308CS8#PBF
5. LT1317CS8#PBF

These alternative models offer similar functionality and characteristics to the LT1317CS8#TRPBF and can be considered as alternatives based on specific requirements.

In conclusion, the LT1317CS8#TRPBF is an integrated circuit used as a voltage step-up converter. It offers high efficiency, wide input voltage range, adjustable output voltage, and various protection features. Its application field includes battery-powered devices, LED lighting, portable audio devices, industrial equipment, and automotive electronics. Alternative models such as LT1308CS8#TRPBF and LT1317IS8#TRPBF can also be considered for similar applications.