S-8338AADC-P8T1G

Voltage - Supply (Vcc/Vdd):	1.8 V ~ 6 V
Supplier Device Package:	8-SON (A) (2.9x2.8)
Package / Case:	8-SMD, Flat Lead
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):	88.5%
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-8338AADC-P8T1G Application Field and Working Principle

PMIC (Power Management Integrated Circuits) Voltage Regulators - DC DC Switching Controllers include a wide range of circuits that are used to regulate, convert and/or control power from an external source to a target device. The S-8338AADC-P8T1G is a special type of DC DC Switching Controller designed for high efficiency and low EMI.

Application

The S-8338AADC-P8T1G was designed to target the demands of today\'s mobile and power sensitive applications. It is a highly integrated solution with many features that make it a great choice for portable equipment, such as mobile phones, digital cameras, or PDAs. The S-8338AADC-P8T1G is also suitable for industrial applications, such as industrial PCs, DIN-rail power supplies, and instrumentation.

Features

The S-8338AADC-P8T1G is a single-channel step-down controller that utilizes a novel control scheme to achieve accurate loop control with minimal external components. It also has many features that make it easy to use and configure. This includes:

• Wide input voltage range (4V to 30V) for flexibility.
• High efficiency PWM (Pulse Width Modulation) synchronous rectification.
• Internal soft-start circuitry.
• Pre-biased voltage start up.
• Integrated ADC (Analog-to-Digital Converter)
• Programmable current limit.
• Programmable starting time.
• Programmable output voltage.
• Internal sleep/off mode.
• Optional programmable switching frequency.

Working Principle

The S-8338AADC-P8T1G is a step-down regulator device, meaning that it can take a higher input voltage and reduce it down to a lower output voltage. It does this using an internal voltage-mode PWM (Pulse-Width Modulation) control circuitry, which controls the current flowing through an external power MOSFET (a switch) to regulate the output voltage.The S-8338AADC-P8T1G also utilizes a novel control scheme that makes it highly efficient and low EMI (Electromagnetic Interference). The controller uses an internal microprocessor to receive feedback signals from a voltage sense resistor in order to accurately control the output voltage. The controller also utilizes an internal ADC (Analog-To-Digital Converter) to monitor input and output voltages and adjusts the power MOSFET current accordingly.At the core of the S-8338AADC-P8T1G is a high performance Pulse Width Modulation (PWM) controller, which can operate at switching frequencies of up to 2 MHz and provides a high efficiency, low EMI solution.

Conclusion

The S-8338AADC-P8T1G is a DC-DC switching regulator with a wide range of features and a novel control scheme that make it suitable for a wide range of applications. It has a wide input voltage range, a high efficiency switching frequency, pre-biased voltage start up, integrated ADC and programmable current limit, making it a great choice for mobile and power sensitive applications. The S-8338AADC-P8T1G can be used for high efficiency, low EMI applications and is an ideal solution for new product designs.

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