S-8352C56UA-K7PT2G

Voltage - Supply (Vcc/Vdd):	0.9 V ~ 10 V
Supplier Device Package:	SOT-89-3
Package / Case:	TO-243AA
Operating Temperature:	-40°C ~ 85°C (TA)
Control Features:	--
Serial Interfaces:	--
Clock Sync:	No
Synchronous Rectifier:	No
Duty Cycle (Max):	80%
Frequency - Switching:	100kHz
Series:	--
Output Phases:	1
Number of Outputs:	1
Topology:	Boost
Output Configuration:	Positive
Function:	Step-Up
Output Type:	Transistor Driver
Part Status:	Not For New Designs
Packaging:	Tape & Reel (TR)

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Introduction of S-8352C56UA-K7PT2G

The S-8352C56UA-K7PT2G is a voltage regulator within the DC-DC switching controllers product family. This device offers superior performance and reliability for switching point-of-load applications that demand higher current than traditional FET/controller combinations can support. This Voltage Regulator is based on a voltage-mode, variable frequency, PWM topology with a multitude of features that combine to provide superior performance in terms of low output ripple, low component count and low component cost.

Application Field of S-8352C56UA-K7PT2G

The S-8352C56UA-K7PT2G supports synchronous buck or step-down converters that can be used in a number of different applications in which power supply modules must operate between input voltage and output voltage with high efficiency. Common applications include notebook/desktop PCs, servers, power management systems, medical/industrial equipment, telecom, and general power supplies.

Features of S-8352C56UA-K7PT2G

The S-8352C56UA-K7PT2G offers several key features meant to make it easy to use and highly reliable. These features include:

• High-performance voltage-mode control with PWM-based ramp compensation with fast transient response;
• Wide operating voltage range for input sources;
• Programmable frequency range;
• Programmable soft start and over current protection for maximum safety;
• Frequency foldback capability for improved light-load efficiency;
• Optimized synchronization to external clock sources;
• System Pause mode for improved efficiency during low-frequency operations and brown-out conditions;
• Programmable slew-rate control and output voltage sense;
• Thermal protection;
• Power stage with built-in low-resistance MOSFETs, available in a variety of package types (TSOP, SOIC, DFN);
• Selectable input/output voltage ranges;
• Selectable output voltage ramps;
• Integrated soft start with adjustable ramp time.

Working Principle of S-8352C56UA-K7PT2G

The S-8352C56UA-K7PT2G DC-DC switching voltage regulator is based on a voltage-mode PWM control architecture. This type of architecture works by comparing an externally programmed DC reference voltage with a divided version of the output voltage. In this way, the duty cycle of the voltage regulator is adjusted in such a way that the average output voltage is the same as the reference voltage.The internal circuitry of the S-8352C56UA-K7PT2G will automatically detect an over-voltage or under-voltage condition and make the necessary corrections to keep the output voltage within tolerance. The device also has protection circuitry in case of external fault conditions, such as an over-temperature fault.The S-8352C56UA-K7PT2G also provides selectable slew-rate control and output voltage sense features. These features allow the user to tailor the regulator\'s response to their particular requirements.The S-8352C56UA-K7PT2G can be used as a standalone voltage regulator or integrated into a multi-phase voltage regulation system. In the former case, the device can be set to operate at a constant frequency determined by an externally-supplied clock signal or its internal frequency generator.In a multi-phase system, the S-8352C56UA-K7PT2G can be configured to operate in parallel with other regulators in order to share the load and improve the overall efficiency of the system. The device also provides an optimization feature which allows the user to tailor the system\'s performance based on the efficiency requirements of their application.

Conclusion

The S-8352C56UA-K7PT2G DC-DC switching voltage regulator is a reliable and easy to use device for switching point-of-load applications that require higher current than traditional FET/controller combinations can support. The device features a voltage-mode, variable frequency, PWM topology, which offers superior performance in terms of low output ripple, low component count and low component cost. It is suitable for a wide variety of applications, from notebook/desktop PCs, servers, power management systems, medical/industrial equipment, and telecom, to general power supplies.

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