onsemi

CAT3604AHV4-T2

CAT3604AHV4-T2 Description

The CAT3604AHV4-T2 from onsemi is a high-performance DC-DC regulator designed for LED backlighting applications. This 4-output switched capacitor (charge pump) LED driver operates within a 3V to 5.5V supply range, delivering up to 30mA per channel at a switching frequency of 1MHz. Packaged in a 16-pin TQFN and available in Tape & Reel (TR), it is optimized for surface-mount assembly in space-constrained designs. The device supports analog and PWM dimming, enabling precise brightness control for LED arrays. With ROHS3 compliance and REACH unaffected status, it meets stringent environmental regulations.

CAT3604AHV4-T2 Features

• Topology: Switched capacitor (charge pump) for efficient power conversion.
• Outputs: 4 channels, each capable of 30mA current.
• Dimming: Dual-mode (analog + PWM) for flexible brightness adjustment.
• Frequency: Fixed 1MHz operation for reduced external component count.
• Package: 16-TQFN (3x3mm) with tape-and-reel packaging for automated assembly.
• Compliance: ROHS3 and REACH Unaffected, ensuring environmental safety.
• Reliability: MSL 1 (Unlimited) moisture sensitivity, suitable for extended storage.
• Internal Switch: Integrated switches simplify design and reduce BOM cost.

CAT3604APV4-T2 Applications

• LCD Backlighting: Ideal for smartphones, tablets, and portable displays requiring uniform illumination.
• Consumer Electronics: Used in keyboard backlights, indicator LEDs, and automotive dashboards.
• Industrial Lighting: Supports low-voltage LED arrays in instrumentation and control panels.
• Battery-Powered Devices: Efficient charge pump topology extends battery life in handheld gadgets.

Conclusion of CAT3604AHV4-T2

The CAT3604AHV4-T2 stands out for its compact design, high efficiency, and dual dimming capabilities, making it a superior choice for LED driving applications. Its wide input voltage range, low external component count, and compliance with environmental standards ensure reliability in demanding environments. While marked as Last Time Buy, it remains a robust solution for existing designs requiring precise, energy-efficient LED control. Engineers should consider this IC for space-constrained, high-performance backlighting systems.