LTC1753 Datasheet PDF | Linear Technology

Linear Technology LTC1753

The LTC1753 uses a synchronous switching architecture with two external N-channel output devices, providing high efficiency and eliminating the need for a high power, high cost P-channel device. The LTC1753 free-runs at 300kHz and can be synchronized to a faster external clock if desired. It provides a phase lead compensation scheme and under harsh loading conditions, the PWM duty cycle can be momentarily forced to 0% or 100% to reduce the output voltage recovery time.

Part No.	LTC1753
Datasheet	LTC1753 Download
Manufacturer	Linear Technology
Description	5-Bit Programmable Synchronous Switching Regulator Controller
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FEATURES

s s s s s s s s s DESCRIPTIO s s s 5-Bit Digitally Programmable 1.3V to 3.5V Fixed Output Voltage, VRM 8.4 Compliant Fast Transient Response: 0% to 100% Duty Cycle Phase Lead Compensation for Remote Sensing Overtemperature Protection Flags for Power Good and Overvoltage Fault 19A Output Current Capability from a 5V 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 Available in 2O-Lead SSOP and SW Packages U APPLICATIO S s s Power Supply for Pentium® III, AMD-K6®-2, SPARC, ALPHA and PA-RISC Microprocessors High Power 5V to 1.3V-3.5V Regulators The LTC®1753 is a high power, high efficiency switching regulator controller optimized for 5V input to a digitally programmable 1.3V-3.5V output. The internal 5-bit DAC programs the output voltage from 1.3V to 2.05V in 50mV increments and from 2.1V to 3.5V in 100mV increments.