Evaluation Kit For 4 Output 4A Buck Regulat

The Evaluation Kit features the MC34700 a high-efficiency Single Chip Four Output Power supply that fully integrates three high-performance switching buck regulators (DC/DC1, 2 and 3) including an LDO and a supervisory circuit. All switching regulators are voltage mode control and feature external compensation for greater choice in performance and external components selection.DC/DC1 is a non-synchronous converter and can operate from an external wide input supply (9-18V) and utilizes a feed-forward circuit, DC/DC 2 and 3 are both synchronous and can feed off either DC/DC1, or other available rails. The integrated LDO can be optimized to feed off either DC/DC1, 2 or 3, depending on the voltages and load currents of the application.Applications include: set top boxes and receivers, cable modems, and telecom and line cards.

Three switching regulators, two of which are synchronous

Low-dropout linear regulator

High accuracy voltage outputs (±1%)

User configurable power-up sequencing

Cycle by cycle current limit and short-circuit protection

Thermal shutdown protection

Over-voltage, under-voltage, and over-current protection

Supervisory functions

Active high power-good output signal

Active high enable inputs