LT3973HMSE#PBF

Product Overview

• Category: Integrated Circuit (IC)
• Use: Power Management
• Characteristics:
  • High efficiency voltage regulator
  • Wide input voltage range
  • Adjustable output voltage
  • Compact package size
• Package: MSOP-10E
• Essence: The LT3973HMSE#PBF is a high-efficiency, wide input voltage range voltage regulator designed for power management applications.
• Packaging/Quantity: The LT3973HMSE#PBF is available in tape and reel packaging with a quantity of 2500 units per reel.

Specifications

• Input Voltage Range: 2.7V to 60V
• Output Voltage Range: 1.2V to 50V
• Maximum Output Current: 1A
• Switching Frequency: Up to 2MHz
• Operating Temperature Range: -40°C to 125°C

Detailed Pin Configuration

The LT3973HMSE#PBF has the following pin configuration:

1. VIN: Input voltage pin
2. SW: Switching node connection
3. GND: Ground reference pin
4. FB: Feedback pin for output voltage regulation
5. VOUT: Output voltage pin
6. SS: Soft-start capacitor connection
7. EN: Enable pin for turning the regulator on/off
8. PG: Power good indicator pin
9. RT: External resistor connection for setting switching frequency
10. COMP: Compensation pin for stability control

Functional Features

• High efficiency voltage regulation
• Wide input voltage range allows for versatile applications
• Adjustable output voltage provides flexibility
• Compact package size enables space-saving designs
• Power good indicator for monitoring output status
• Soft-start feature for controlled startup

Advantages

• High efficiency results in reduced power dissipation and longer battery life
• Wide input voltage range allows for compatibility with various power sources
• Adjustable output voltage accommodates different load requirements
• Compact package size saves board space
• Power good indicator provides system status information
• Soft-start feature prevents excessive inrush current during startup

Disadvantages

• Limited maximum output current of 1A may not be suitable for high-power applications
• Operating temperature range may restrict usage in extreme environments

Working Principles

The LT3973HMSE#PBF operates as a step-down voltage regulator using a switching topology. It converts the higher input voltage to a lower, regulated output voltage by rapidly switching an internal power transistor. This switching action allows for efficient power conversion while minimizing power loss.

Detailed Application Field Plans

The LT3973HMSE#PBF can be used in various applications, including but not limited to:

1. Industrial automation systems
2. Automotive electronics
3. Telecommunications equipment
4. Portable electronic devices
5. Power supply modules
6. LED lighting systems

Detailed and Complete Alternative Models

1. LT3973IMSE#PBF: Similar specifications and features, but in an MSOP-10E package.
2. LT3973HMSE-1#PBF: Higher maximum output current of 1.5A, otherwise similar specifications and features.
3. LT3973EMSE#PBF: Lower maximum output current of 500mA, otherwise similar specifications and features.

These alternative models provide options based on specific application requirements or design constraints.

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