LTC1553CSW#TR Description

The LTC1553CSW#TR is a high-power, high-efficiency switching regulator controller optimized for 5V or 12V input to 1.8V3.5V output applications.

LTC1553CSW#TR Feature

• 5-Bit Digitally Programmable 1.8V to 3.5V Fixed Output Voltage

• Provides All Features Required by the Intel Pentium? II Processor VRM 8.2 DC/DC Converter Specification

• Flags for Power Good, Over-Temperature and Overvoltage Fault

• 19A Output Current Capability from a 5V or 12V Supply

• Dual N-Channel MOSFET Synchronous Driver

• Initial Output Accuracy: ±1.5%

• Excellent Output Accuracy: ±2% Typ Over Line, Load and Temperature Variations

• High Efficiency: Over 95% Possible

• Adjustable Current Limit Without External Sense Resistors

• Fast Transient Response

• Available in 20-Lead SSOP and SW Packages

LTC1553CSW#TR Applications

• Power Supply for Pentium II, SPARC, ALPHA and PA-RISC Microprocessors

• High Power 5V or 12V to 1.8V-3.5V Regulators