SC4607: Very Low Input, MHz Operation, High-Efficiency Synchronous Buck

• Asynchronous start-up
• BiCMOS voltage-mode PWM controller
• Operating frequency to 1 MHz
• 2.25 V to 5.5 V input voltage range
• Output voltages as low as 0.5 V
• ± 1% reference accuracy
• Sleep mode (I_CC = 10 µA typ.)
• Adjustable lossless short-circuit current limiting
• Combination pulse-by-pulse & hiccup-mode current limit
• High-efficiency synchronous switching
• Up to 97% duty cycle
• 1 A peak current driver
• 10-pin MSOP package

Typical Application Circuit

Click diagram to enlarge

• Distributed power architecture
• Servers/workstations
• Local microprocessor core power supplies
• DSP and I/O power supplies
• Battery-powered applications
• Telecommunications equipment
• Data processing applications

MSOP-10

• SC4607IMSTR: Package Minimum Tape & Reel Only
• SC4607IMSTRT: Lead-Free, RoHS and WEEE Compliant, Package Minimum Tape & Reel Only