LTC1874EGN#TRPBF

Product Overview

Category: Integrated Circuit (IC)

Use: Power Management

Characteristics: - High efficiency - Low quiescent current - Wide input voltage range - Adjustable output voltage - Small package size

Package: 16-pin SSOP (Shrink Small Outline Package)

Essence: The LTC1874EGN#TRPBF is a power management IC designed for efficient voltage regulation in various electronic devices.

Packaging/Quantity: The LTC1874EGN#TRPBF is typically sold in reels of 2500 units.

Specifications

• Input Voltage Range: 2.25V to 10V
• Output Voltage Range: 0.6V to VIN
• Maximum Output Current: 1A
• Quiescent Current: 40µA
• Switching Frequency: 550kHz
• Operating Temperature Range: -40°C to 85°C

Detailed Pin Configuration

The LTC1874EGN#TRPBF features a 16-pin SSOP package with the following pin configuration:

1. VIN: Input voltage
2. GND: Ground
3. SW: Switching node connection
4. FB: Feedback voltage input
5. VCC: Supply voltage for internal circuitry
6. PGND: Power ground
7. SS/TR: Soft-start/tracking control
8. SYNC: Synchronization input
9. EN: Enable control
10. VOUT: Output voltage
11. COMP: Compensation node
12. RT: Timing resistor
13. CT: Timing capacitor
14. BST: Bootstrap supply
15. LX: Inductor connection
16. PGND: Power ground

Functional Features

• High efficiency synchronous buck regulator
• Adjustable output voltage through external resistors
• Soft-start and tracking capability
• Synchronization with an external clock signal
• Enable control for power management
• Overcurrent protection and thermal shutdown

Advantages and Disadvantages

Advantages: - High efficiency operation - Wide input voltage range allows for versatile applications - Adjustable output voltage provides flexibility - Small package size saves board space - Soft-start and tracking features enhance system performance

Disadvantages: - Limited maximum output current (1A) - Requires additional external components for operation

Working Principles

The LTC1874EGN#TRPBF operates as a synchronous buck regulator, converting a higher input voltage to a lower output voltage efficiently. It utilizes a high-frequency switching technique to minimize power losses. The output voltage can be adjusted through external resistors connected to the feedback pin. The IC also incorporates various protection features such as overcurrent protection and thermal shutdown to ensure safe operation.

Detailed Application Field Plans

The LTC1874EGN#TRPBF is widely used in various electronic devices that require efficient power management. Some common application fields include:

1. Portable electronic devices: Smartphones, tablets, portable media players
2. Industrial equipment: Power supplies, motor drives, LED lighting
3. Automotive electronics: Infotainment systems, navigation systems, advanced driver-assistance systems (ADAS)
4. IoT devices: Wearable devices, smart home automation systems, wireless sensors

Detailed and Complete Alternative Models

1. LTC1874EGN#PBF: Similar to LTC1874EGN#TRPBF, but available in a 16-pin PDIP package.
2. LTC1874EGN#MPBF: Similar to LTC1874EGN#TRPBF, but available in a 16-pin MSOP package.
3. LTC1874EGN#5PBF: Similar to LTC1874EGN#TRPBF, but available in a 16-pin 5mm × 4mm QFN package.

These alternative models offer similar functionality and characteristics to the LTC1874EGN#TRPBF, providing options for different PCB layout requirements or assembly processes.

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