SC4602: High-Efficiency Synchronous Step-Down Controller

• BiCMOS voltage-mode PWM controller
• 2.75 V to 5.5 V input voltage range
• Output voltages as low as 0.8 V
• ± 1% reference accuracy
• Sleep mode (I_CC = 10 µA typ.)
• Lossless short-circuit current limiting
• Combination pulse by pulse & hiccup mode current limit
• High-efficiency synchronous switching
• 0% to 100% duty cycle range
• Synchronization to external clock
• 8-pin MSOP surface-mount package

Typical Application Circuit

Click diagram to enlarge

• Distributed power system
• RF power supply
• Local microprocessor core power supplies
• DSP and I/O power supplies
• Battery-powered applications
• Servers and workstations

MSOP-8

• SC4602AIMSTR: Package Minimum Tape & Reel Only
• SC4602AIMSTRT:
• SC4602BIMSTR: Package Minimum Tape & Reel Only
• SC4602BIMSTRT: Lead-Free, RoHS and WEEE Compliant, Package Minimum Tape & Reel Only