General Description
The HV9606 PWM controller allows the design of high efficiency (>90%) power supplies for distributed board mounted power (BMP) applications. Due to its high frequency capability it can provide high currents (20A @ 3.3V) with small transformers and due to its low internal operating voltage and current is also able to achieve high efficiencies in low power applications.

Features
❐ Synchronous Forward, Forward, and Flyback Controller
❐ Lowest External Parts Count, Smallest Magnetics
❐ Eliminates Bootstrap Transformer Winding
❐ Supervisor Circuit Reduces Output Capacitance* up to 40%
❐ Supervisor Circuit Functions as µP Supply Monitor and POR
❐ 15V to 250V Start-Up Regulator with START/STOP Control
❐ <1mA Operating, <6µA Standby Input Current
❐ VDD Powered Operation down to 2.9V
❐ Charge Pump Gate Drive Supply
❐ Programmable Soft Start
❐ Under Voltage Lockout with Programmable Hysteresis
❐ <50% Duty Cycle Operation
❐ 15kHz to 400kHz Fixed Frequency PWM Operation
❐ Fault Tolerant Peer-to-Peer Synchronization
❐ Precision !1% Band Gap Voltage Reference
❐ Current Sense Leading Edge Blanking
❐ Small SSOP-20 Footprint

Applications
❐ Powered Ethernet and VoIP Terminals
❐ Cable Modems and Amplifiers
❐ ISDN Network Terminations, Terminals and Adapters
❐ Network Equipment
❐ Servers, PCs and Peripheral Equipment
❐ Telecommunication Systems and Terminals
❐ Distributed Board Mounted Power
❐ Battery Backup Systems
❐ Portable Power Applications
❐ Automotive and Heavy Equipment