Description

The SC2544TS.TRT is a high-performance dual PWM controller designed to convert a wide range of input voltage down to two independent output rails. The PWM operations of the two channels are 180 degrees out of phase, which significantly reduces the size and cost of the input capacitors. With synchronous Buck PWM topology and voltage mode control, this controller allows for high efficiency operation, fast transient responses, and flexible component selection for easy designs.

Specifications and features

- Independent dual-outputs
- Wide input voltage range: 4.5V~28V
- Adjustable output voltage down to 0.75V
- Flexible power sequencing with enable and power good output
- Synchronous Buck topology with voltage mode control
- Out of phase operation to reduce cost of input capacitor
- 10V internal regulator for gate driver to deliver high efficiency
- Programmable switching frequency: 100kHz~300kHz
- Full protection: UVLO, OVP, and programmable OCP
- No need for current sense resistor
- Low shutdown current (100nA typical)
- 24 lead TSSOP and MLPQ packages
- Fully WEEE and RoHS Compliant

Application Scenarios

- Systems with 4.5V~28V input
- LCDTV and PDPTV
- Network and telecom systems
- Portable devices

Comparison

The SC2544TS.TRT offers several advantages, including a wide input voltage range, adjustable output voltage, flexible power sequencing, and high efficiency operation. It also does not require a current sense resistor and has a low shutdown current. However, it is only available in 24 lead TSSOP and MLPQ packages, which may limit its compatibility with certain systems. Additionally, it is fully WEEE and RoHS compliant, ensuring environmental friendliness.