FAN5333ASX

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FAN5333ASX

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IC LED DRV RGLTR PWM SOT23-5

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規格

屬性 價值
Part Status Obsolete
Type DC DC Regulator
Topology Step-Up (Boost)
Internal Switch(s) Yes
Number of Outputs 1
Voltage - Supply (Min) 1.8V
Voltage - Supply (Max) 5.5V
Voltage - Output 30V
Current - Output / Channel 1.5A (Switch)
Frequency 1.5MHz
Dimming Analog, PWM
Applications Backlight
Operating Temperature -40°C ~ 85°C (TA)
Mounting Type Surface Mount
Package / Case SC-74A, SOT-753
Supplier Device Package SOT-23-5
Base Product Number FAN5333

概述

Description

The FAN5333ASX is a high-efficiency, step-down DC-DC converter designed for use in portable and battery-powered applications. It operates at a high switching frequency of 1.5 MHz, which allows the use of smaller inductors and capacitors, leading to a more compact design. The device is capable of delivering up to 3A of output current, making it suitable for applications requiring moderate power levels.
Key features include an internal synchronous rectifier, which enhances efficiency by reducing diode losses, and a wide input voltage range, typically from 2.5V to 5.5V. The FAN5333ASX also provides a fixed output voltage with high accuracy, making it ideal for precision applications.
Additional features include soft-start, over-current protection, and thermal shutdown for enhanced reliability and protection in various operating conditions. Its small footprint and low external component count make it well-suited for space-constrained designs. Overall, the FAN5333ASX offers a versatile and efficient solution for powering a variety of electronic devices in portable applications.

Equivalent

The FAN5333ASX is a boost converter IC manufactured by ON Semiconductor. Equivalent products may include:
1. TPS61040 by Texas Instruments
2. LM2731 by Texas Instruments
3. LT1613 by Analog Devices
4. MCP1640 by Microchip Technology
These alternatives offer similar functionalities and can be used in applications requiring step-up voltage conversion. Always check the datasheets for specific parameters to ensure compatibility with your circuit requirements.

Features

The FAN5333ASX is a high-efficiency step-up DC-DC converter designed for use in small portable applications. Key features include:
1. Wide Input Voltage Range: Operates efficiently over a broad input voltage range, making it suitable for various battery-powered devices.
2. Adjustable Output Voltage: Provides flexibility with an adjustable output voltage, catering to different application needs.
3. High Efficiency: Optimized for high efficiency, reducing power loss and enhancing battery life in portable applications.
4. Internal Switch: Incorporates an internal power switch, minimizing the need for external components and simplifying the design process.
5. Compact Package: Available in a small footprint package, suitable for space-constrained applications.
6. Low Quiescent Current: Consumes low quiescent current, beneficial for extending standby times.
7. Protection Features: Includes over-current and thermal shutdown protections to ensure device safety and reliability.
These features make the FAN5333ASX an ideal choice for efficient power management in compact electronic devices.

Pinout

The FAN5333ASX is a step-up DC-DC converter designed by ON Semiconductor for applications that require high efficiency and compact size. It typically comes in a small SOT-23 package, which commonly has 5 pins. Here is a brief overview of the pin functions:
1. Pin 1 (SW): This is the switch pin. It connects to the inductor and diode and is the output side of the internal power switch.
2. Pin 2 (GND): The ground pin, which is the reference point for the circuit and provides a return path for the current.
3. Pin 3 (FB): The feedback pin is connected to the resistor divider network which sets the output voltage.
4. Pin 4 (EN): The enable pin is used to turn the device on or off. A high level enables the device, while a low level disables it, reducing standby current.
5. Pin 5 (VIN): The input voltage pin where the supply voltage is applied to power the device.
This pin configuration allows the FAN5333ASX to efficiently boost voltages for applications such as driving LED backlighting in portable devices.

Manufacturer

The FAN5333ASX is manufactured by ON Semiconductor, which is a leading supplier of semiconductor-based solutions. ON Semiconductor provides a comprehensive portfolio of energy-efficient power management, analog, sensors, logic, timing, connectivity, discrete, SoC and custom devices. The company focuses on automotive, industrial, cloud power, IoT, and consumer applications.

Application

The FAN5333ASX is a boost converter IC commonly used in applications requiring voltage step-up. Key application areas include powering white LEDs in backlighting for LCD displays, portable devices such as smartphones and tablets, and handheld gaming consoles. It is also used in battery-operated devices where efficient power management is crucial, including digital cameras and personal medical devices. Additionally, the FAN5333ASX can be utilized in sensors and IoT gadgets that require a stable power supply from a lower voltage source, enhancing battery life and performance. Its compact size and high efficiency make it suitable for space-constrained applications.

Package

The FAN5333ASX is typically available in a SOT-23-6 package.