LTC3400ES6-1#TRPBF

Product Overview

Category

The LTC3400ES6-1#TRPBF 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. It provides a stable output voltage, ensuring proper functioning of the connected components.

Characteristics

• Input Voltage Range: 2.5V to 5.5V
• Output Voltage Range: 1.8V
• Output Current: Up to 600mA
• Efficiency: Up to 95%
• Low Quiescent Current: 16µA
• Low Shutdown Current: <1µA
• Package Type: SOT-23-6
• Operating Temperature Range: -40°C to 85°C

Package and Quantity

The LTC3400ES6-1#TRPBF is available in a small outline transistor (SOT) package with six pins. It is commonly sold in tape and reel packaging, with a quantity of 3000 units per reel.

Specifications

• Input Voltage Range: 2.5V to 5.5V
• Output Voltage: 1.8V
• Output Current: Up to 600mA
• Dropout Voltage: 200mV at 100mA
• Quiescent Current: 16µA
• Shutdown Current: <1µA
• Ripple Rejection: 70dB at 1kHz
• Load Regulation: ±0.5%
• Line Regulation: ±0.3%
• Operating Temperature Range: -40°C to 85°C

Pin Configuration

The LTC3400ES6-1#TRPBF has the following pin configuration:

____ EN |1 6| GND VIN |2 5| VOUT FB |3 4| SW ----

1. EN: Enable Pin - Used to turn the regulator on or off.
2. VIN: Input Voltage Pin - Connects to the input voltage source.
3. FB: Feedback Pin - Provides feedback for regulating the output voltage.
4. SW: Switch Pin - Connects to the inductor and regulates the current flow.

Functional Features

• Low quiescent current ensures minimal power consumption during operation.
• High efficiency helps conserve energy and prolong battery life.
• Wide input voltage range allows compatibility with various power sources.
• Excellent load and line regulation provide a stable output voltage under different conditions.
• Shutdown mode with ultra-low current consumption enables power-saving when not in use.
• Compact SOT package facilitates space-constrained applications.

Advantages and Disadvantages

Advantages

• Efficient voltage regulation
• Low quiescent and shutdown currents
• Wide input voltage range
• Compact package size
• Good load and line regulation

Disadvantages

• Limited output current capacity (up to 600mA)
• Fixed output voltage (1.8V)

Working Principles

The LTC3400ES6-1#TRPBF is a step-down DC-DC converter that uses a synchronous buck topology. It operates by switching the input voltage through an inductor and then filtering it to produce a regulated output voltage. The feedback mechanism adjusts the duty cycle of the switching transistor to maintain the desired output voltage.

When enabled, the internal control circuitry generates a pulse-width modulated (PWM) signal that drives the switch pin. This controls the flow of current through the inductor, which stores energy during the on-time and releases it to the output during the off-time. By adjusting the duty cycle, the regulator maintains a constant output voltage despite variations in the input voltage and load conditions.

Detailed Application Field Plans

The LTC3400ES6-1#TRPBF is widely used in various applications that require efficient voltage regulation, such as:

1. Battery-powered devices: Portable electronics, handheld instruments, and wireless communication devices benefit from its low quiescent current and high efficiency.
2. IoT devices: Internet of Things (IoT) sensors, smart home devices, and wearable technology can utilize this regulator for stable power supply.
3. Automotive electronics: It can be employed in automotive systems, including infotainment systems, navigation units, and advanced driver-assistance systems (ADAS).
4. Industrial automation: Control systems, motor drives, and robotics can benefit from its compact size and reliable voltage regulation.

Detailed and Complete Alternative Models

1. LM317: A popular linear voltage regulator with adjustable output voltage.
2. LT1763: A low dropout (LDO) regulator with high accuracy and low noise.
3. LM2596: A step-down switching regulator with adjustable output voltage and higher current capacity.

These alternative models offer different features and specifications, providing