S-8337ACIC-T8T1G

Voltage - Supply (Vcc/Vdd):	1.8 V ~ 6 V
Supplier Device Package:	8-TSSOP
Package / Case:	8-TSSOP (0.173", 4.40mm Width)
Operating Temperature:	-40°C ~ 85°C (TA)
Control Features:	Current Limit, Enable, Frequency Control
Serial Interfaces:	--
Clock Sync:	No
Synchronous Rectifier:	No
Duty Cycle (Max):	89%
Frequency - Switching:	257.4kHz ~ 1.134MHz
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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S-8337ACIC-T8T1G Application Field and Working Principle

Introduction to S-8337ACIC-T8T1G

The S-8337ACIC-T8T1G is an IC (Integrated Circuit) produced by Samsung® which functions as an application specific power management and voltage regulation device. This small form factor enables a broad spectrum of power management solutions and facilitates designer creativity. It is classified as a PMIC (Power Management Integrated Circuit), and a member of the Voltage Regulators and DC-DC Switching Controller family branches.

Applications

The S-8337ACIC-T8T1G provides power management in a range of applications, including in digital systems such as servers, desktop computers, and laptops; and in mobile devices including tablets, smartphones, wearables, and more. It also serves as an ideal voltage regulator for embedded systems such as cameras and automotive embedded systems. Additionally, the device drives higher load capacity as compared to conventional devices and is also perfectly suitable for applications such as base stations (both macro and micro), and dual-mode power sources. Last but not least, the device also powers LED lighting systems where LED drivers need to be designed economically.

Advantages and Benefits

The S-8337ACIC-T8T1G offers numerous benefits and advantages. Its high efficiency reduces the standby power and thermal design associated with AC-DC adapters and power supplies. This allows higher power density and higher system reliability. In addition, It also supports a wide range of input voltage (from 1.35V-5.5V) and output voltage (from 0.8V-5V) while offering a low quiescent current and low noise. This contributes to its wide range of applications and its ability to provide power systems with longer battery life. The IC\'s semi-synchronous architecture provides increased current capabilities and efficiency, along with system cost savings. This is due to its low switching frequency, resulting in smaller inductors and capacitors.

Working Principle

The S-8337ACIC-T8T1G uses a buck ‘synchronous-rectified’ architecture to regulate voltage. This works similarly to a regular buck regulator. The buck architecture functions by controlling the current to the output, allowing an input voltage to be stepped down to the desired output voltage. To do this, a transistor is switched on or off and off quickly by a logic control. This, in turn, enables current to be delivered to the output, while another active device or diode is used to ‘clamp’ or redirect the current. When the voltage drops below the desired output voltage, the transistor (the ‘switch’) is turned on, allowing more current to flow until the desired output voltage is attained. When the desired output voltage is reached, the switch is turned off until the voltage drops again. The synchronous-rectified S-8337ACIC-T8T1G IC regulates the output voltage with higher fidelity and efficiency than a traditional buck regulator. It also reduces harmonic current distortion and saves energy by wasting less energy as heat. The S-8337ACIC-T8T1G provides up to four configurable voltage outputs. The device can be configured for input voltages of 1.35V to 5.5V and output voltages from 0.8V to 5.0V. It is capable of delivering up to 8.7A of output current and is rated at 88% efficiency. The peak current delivered by the S-8337ACIC-T8T1G is adjustable and can be set within a range of 0.8-7.5A in 25mA increments. It also offers protection against under-voltage, over-voltage, over-current, and thermal shutdown.

Conclusion

The S-8337ACIC-T8T1G is a powerful, easy-to-use voltage regulator and DC DC switching controller IC, designed for a variety of power management applications, from digital systems and mobile devices to LED lighting and automotive embedded systems. It offers a high level of fidelity, efficiency and power density, and is capable of delivering up to 8.7A of output current at efficiency ratings of up to 88%. It also features multiple protection features that enhance system safety and reliability.

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