RT9742DNGJ5

Product Overview

Category: Integrated Circuit (IC)

Use: Power Management IC

Characteristics: - High efficiency - Low power consumption - Small form factor - Wide input voltage range - Multiple output channels

Package: DNGJ5 (Surface Mount Package)

Essence: The RT9742DNGJ5 is a power management integrated circuit designed to efficiently regulate and distribute power in electronic devices.

Packaging/Quantity: The RT9742DNGJ5 is typically packaged in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

The RT9742DNGJ5 has the following specifications:

• Input Voltage Range: 2.7V to 5.5V
• Output Voltage Range: Adjustable from 0.6V to VIN
• Maximum Output Current: 1A per channel
• Operating Temperature Range: -40°C to +85°C
• Efficiency: Up to 95%
• Quiescent Current: 60µA (typical)

Detailed Pin Configuration

The RT9742DNGJ5 has the following pin configuration:

1. VIN: Input Voltage
2. GND: Ground
3. EN: Enable Pin
4. FB1: Feedback Pin for Channel 1
5. FB2: Feedback Pin for Channel 2
6. VOUT1: Output Voltage for Channel 1
7. VOUT2: Output Voltage for Channel 2

Functional Features

• Dual-channel output with independent voltage regulation
• Built-in overcurrent protection
• Soft-start function to prevent inrush current
• Low dropout voltage
• Thermal shutdown protection

Advantages and Disadvantages

Advantages: - High efficiency leads to reduced power consumption - Small form factor allows for space-saving designs - Wide input voltage range provides flexibility in power source selection - Multiple output channels enable powering different components simultaneously

Disadvantages: - Limited maximum output current per channel (1A) - Operating temperature range may not be suitable for extreme environments

Working Principles

The RT9742DNGJ5 utilizes a combination of switching and linear regulator techniques to efficiently regulate and distribute power. It employs a step-down converter to reduce the input voltage to the desired output voltage, which is then further regulated by a linear regulator. The integrated circuit continuously monitors the output voltage and adjusts the switching frequency to maintain stable and accurate voltage levels.

Detailed Application Field Plans

The RT9742DNGJ5 is commonly used in various electronic devices, including but not limited to: - Mobile phones - Tablets - Portable media players - Digital cameras - Wireless communication devices

Its compact size, high efficiency, and multiple output channels make it suitable for applications where space is limited, power consumption needs to be minimized, and multiple components require independent voltage regulation.

Detailed and Complete Alternative Models

• RT9742DNGJ6: Similar specifications and features, but with a different package (DNGJ6)
• RT9743DNGJ5: Single-channel version with similar specifications and features
• RT9744DNGJ5: Dual-channel version with higher maximum output current (2A per channel)

These alternative models provide options for different packaging requirements, single-channel applications, or higher power demands.

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