S-8357B36MC-NIVT2G

Voltage - Supply (Vcc/Vdd):	0.9 V ~ 10 V
Supplier Device Package:	SOT-23-5
Package / Case:	SC-74A, SOT-753
Operating Temperature:	-40°C ~ 85°C (TA)
Control Features:	Enable
Serial Interfaces:	--
Clock Sync:	No
Synchronous Rectifier:	No
Duty Cycle (Max):	83%
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

The S-8357B36MC-NIVT2G is a high-performance DC/DC switching controller specifically tailored for consumer, industrial, and medical applications. This controller integrates a digital current loop, voltage loop and temperature loop, providing superior accuracy and dynamic response. It employs a peak current mode control architecture which provides high-bandwidth, fast-transient operation. The S-8357B36MC-NIVT2G is an ideal choice for applications such as computer motherboards, set top boxes, and medical systems that rely on reliable, low-cost and low-emission power conversion.

Application Field and Working Principle

The S-8357B36MC-NIVT2G is a PMIC (Power Management IC) Voltage Regulator, specifically, a DC-DC Switching Controller. Its application fields span from consumer and industrial to medical applications, where it is is utilized to ensure reliable and efficient power conversion in devices such as computer motherboards, set top boxes and medical systems.At its core, the S-8357B36MC-NIVT2G is optimized to drive synchronous buck DC/DC converters. Its architecture consists of a digital current loop, digital voltage loop and temperature loop. This provides superior accuracy and dynamic response. It employs a peak current mode control, a control system architecture designed to provide high-bandwidth, fast-transient control over the relatively complex power conversion process.When used in the application fields we took into consideration, the S-8357B36MC-NIVT2G allows for tight voltage regulation, excellent load and line regulation and fast transient response. Moreover, it provides tight current regulation and temperature protection.Its load regulation stability is based on a two-phase output stage and optimized phase compensation, granting the S-8357B36MC-NIVT2G excellent feedback loop characteristics and therefore, tight voltage regulation.The spread spectrum modulation technology of the S-8357B36MC-NIVT2G also provides excellent line and load regulation, using its adjustable pulse-width modulation to ensure robust operation for the wide input voltage range.The fast transient response is based on the on-chip digital phase compensation, allowing for swift response to phase shifts due to load. This allows the S-8357B36MC-NIVT2G to efficiently prepare for the upcoming load sequence and maintain a high efficiency.Finally, the tight current regulation of the S-8357B36MC-NIVT2G is based on its constant on-time (COT) algorithm, a control system that offers dramatic reduction in output current ripple.The on-chip analog circuitry of the S-8357B36MC-NIVT2G is also worth mentioning, as it provides an adjustable, programmable soft-start plus a configurable trimmed reference voltage that allow for precise voltage regulation. Temperatures are monitored through an integrated thermal shutdown circuit, ensuring the safety of the device and system.

Conclusion

In conclusion, the S-8357B36MC-NIVT2G DC/DC switching controller boasts unparalleled integration and adjustable start-up and protection features, making it the optimal choice for applications such as set-top boxes, motherboards and medical systems. Its peak current mode control architecture provides excellent line and load regulation, tight voltage regulation, fast transient response and accurate current control. Lastly, its integrated thermal shutdown circuit ensures the safety of the device and the system.

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