LTC3862IFE#TRPBF

Product Overview

• Category: Integrated Circuit (IC)
• Use: Power Management
• Characteristics: High Efficiency, Synchronous Step-Down DC/DC Controller
• Package: 16-Lead TSSOP
• Essence: Regulates and controls power supply voltages efficiently
• Packaging/Quantity: Tape & Reel, 2500 units per reel

Specifications

• Input Voltage Range: 4.5V to 38V
• Output Voltage Range: 0.6V to VIN
• Switching Frequency: Up to 1MHz
• Maximum Duty Cycle: 90%
• Quiescent Current: 50µA
• Operating Temperature Range: -40°C to 125°C

Detailed Pin Configuration

The LTC3862IFE#TRPBF features a 16-lead TSSOP package with the following pin configuration:

1. VCC: Supply voltage input
2. GND: Ground reference
3. FB: Feedback voltage input
4. SS: Soft-start capacitor connection
5. SYNC: External synchronization input
6. RT: Oscillator frequency setting resistor
7. PGND: Power ground reference
8. SW: Switch node connection
9. COMP: Compensation node for loop stability
10. VCCSENSE: Supply voltage sensing input
11. ITH: Current limit threshold setting
12. MODE: Mode selection pin
13. SS/TRK: Soft-start/tracking control
14. PGOOD: Power good indicator output
15. EXTVCC: External bias supply input
16. INTVCC: Internal bias supply input

Functional Features

• High efficiency synchronous step-down DC/DC controller
• Wide input voltage range suitable for various applications
• Adjustable output voltage to meet specific requirements
• High switching frequency for compact designs
• Excellent load and line regulation for stable power supply
• Integrated protection features like overcurrent and overvoltage protection

Advantages and Disadvantages

Advantages: - High efficiency operation saves power and reduces heat dissipation - Wide input voltage range allows for versatile applications - Compact package size enables space-constrained designs - Integrated protection features enhance system reliability

Disadvantages: - Requires external components for complete power management solution - Limited output current capability compared to dedicated power modules

Working Principles

The LTC3862IFE#TRPBF is a synchronous step-down DC/DC controller that regulates the output voltage based on the feedback received from the FB pin. It operates by controlling the duty cycle of the internal switches to maintain a stable output voltage, even with varying input voltages and load conditions. The switching frequency can be adjusted using an external resistor connected to the RT pin.

Detailed Application Field Plans

The LTC3862IFE#TRPBF is widely used in various applications, including but not limited to: - Industrial automation systems - Telecommunications equipment - Automotive electronics - Power supplies for consumer electronics - Renewable energy systems

Detailed and Complete Alternative Models

1. LTC3862-1: Similar specifications and features as LTC3862IFE#TRPBF, but available in a different package (QFN)
2. LTC3862-2: Higher maximum switching frequency and wider input voltage range compared to LTC3862IFE#TRPBF
3. LTC3862-3: Lower quiescent current and improved load regulation performance compared to LTC3862IFE#TRPBF

These alternative models provide options for designers based on specific requirements and preferences.

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