Semtech SC2542
High Performance Wide Input RangeDual Synchronous Buck Controller

Not recommended for new designs.
Overview
Features
- Independent dual-switcher-outputs
- Integrated 5V standby output with over 50mA capability
- Wide input voltage range: 6.5V ~ 28V
- Adjustable output voltage down to 0.75V
- Light load efficiency enhancement
- Programmable skip mode operation
- 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 standby operating current (200μA typical)
- Low shut down current (100nA typical)
- 28 lead TSSOP package with exposed die pad (EDP)
- Fully WEEE package and RoHS Compliant
Applications
- Notebook computer system power
- Systems with 6.5V ~ 28V input
- Network and telecom systems
- Other portable devices
Packaging
- TSSOP-28
Order Codes
- SC2542TETRT: Lead-Free, RoHS and WEEE Compliant, Package Minimum Tape & Reel Only
- SC2542EVB: SC2542 Evaluation Board