LTC3203EDD-1#TRPBF - Charge Pump LED Driver

The LTC3203EDD-1#TRPBF is a high-efficiency, low-noise charge pump LED driver from Linear Technology, designed to deliver a constant current to drive white LEDs for display backlighting applications. This compact and versatile component is ideal for portable devices where power efficiency and minimal board space are critical design considerations.

Key Features

• High Efficiency: The LTC3203EDD-1#TRPBF utilizes a 1x/1.5x fractional charge pump to maintain a high efficiency over a wide range of input voltages, ensuring extended battery life in portable applications.
• Constant Current Drive: It provides a constant current output up to 30mA, which is programmable via a single external resistor. This feature ensures uniform brightness for LEDs and protects them from overcurrent conditions.
• Low Noise Operation: The device's low-noise operation is achieved through its constant switching frequency, making it suitable for sensitive RF and audio applications.
• Thermal Protection: The LTC3203EDD-1#TRPBF includes thermal shutdown protection, safeguarding the device and the LEDs from potential damage due to overheating.
• Compact Package: Housed in a small 10-lead DFN package (3mm x 3mm), this LED driver is designed to occupy minimal PCB area, which is essential for space-constrained applications.

Applications

The LTC3203EDD-1#TRPBF is well-suited for a variety of portable devices that require efficient backlighting. These include:

• Smartphones and Tablets
• Portable Media Players
• Digital Cameras
• GPS Units
• Other Handheld Devices

Technical Specifications

• Input Voltage Range: 2.9V to 4.5V
• Output Current: Up to 30mA (Programmable)
• Efficiency: Up to 90%
• Switching Frequency: 1MHz (Typical)
• Package: 10-Lead (3mm x 3mm) DFN

With its combination of high efficiency, constant current drive, low noise operation, and compact form factor, the LTC3203EDD-1#TRPBF from Linear Technology is an excellent choice for designers who need a reliable and space-efficient LED driver solution.