Hot-selling and scarce LTC1530CS8-TR High Power Synchronous Switching Regulator Controller SOP8 spot stock

Product Descriptions

The LTC^®1530 is a high power synchronous switching regulator controller optimized for 5V to 1.3V-3 .5V output applications.Its synchronous switching architecture drives two external N-channel MOSFET devices to provide high efficiency. The LTC1530 contains a precision trimmed reference and feedback system that provides worst-case output voltage regulation of ±2% over temperature, load current  and  line voltage  shifts.  Current  limit  circuitry senses the output current through the on-resistance of the topside N-channel MOSFET, providing an adjustable current limit without requiring an external low value sense resistor.

The LTC1530 includes a fixed frequency PWM oscillator that free  runs at 300kHz, providing greater than 90% efficiency in converter designs from 1A to 20A of output current. Shutdown mode drops the LTC1530 supply current to 45µA.

​The LTC1530 is specified for commercial and industrialtemperature ranges and is available in the S0-8 package.

Product Features

■   High Power Buck Converter from 5V or 3.3V Input

■   Adjustable Current Limit in S0-8 with Topside FET RDS(ON)Sensing

■   No External Sense Resistor Required

■   Hiccup Mode Current Limit Protection

■   Adjustable, Fixed 1.9V, 2.5V, 2.8V and 3.3V Output

■   All N-Channel MOSFET Synchronous Driver

■   Excellent Output Regulation: ±2% over Line, Load and Temperature Variations

■   High Efficiency: Over 95% Possible

■   Fast Transient Response

■   Fixed 300kHz Frequency Operation

■   Internal Soft-Start Circuit

■   Quiescent Current: 1mA; 45µA in Shutdown

Product Applications

■   Power Supply for Pentium®  II, AMD-K6®-2, SPARC, ALPHA and PA-RISC Microprocessors

■   High Power 5V to 1.3V-3 .5V Regulators

Product Specifications

Product Photos

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