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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PMIC - Voltage Regulators - DC DC Switching Controllers

The S-8338ACBA-P8T1G is a DC/DC switching controller with advanced power conversion and high efficiency. It is a highly integrated device optimized for the most demanding applications, including communications, industrial, and automotive applications. The S-8338ACBA-P8T1G integrates a number of features to enable quick and cost effective design, including a wide input range, a wide output range, high DC/DC conversion efficiency, high system integration levels, a rich set of features, and fast transient response.

Application Field

The S-8338ACBA-P8T1G is a powerful and versatile device suitable for a wide range of applications, from small form factor personal electronics to distributed power systems. It is specifically designed for high powering systems, and it can be used in portable devices, battery powered systems, modems, telecommunication equipment, data center and server power systems, industrial automation and control systems, automotive, and other applications requiring high power delivery.

Flexible Input Voltage

The S-8338ACBA-P8T1G is capable of operating over a wide voltage range of 2V to 16V, giving it the flexibility to fit in various system designs. It provides high efficiency at 4V to 12V inputs, and can be used in combination with either a buck or boost converter. It enables the system to use a wide range of power sources available from different vendors, allowing for cost reductions in selecting the input power supply.

High System Efficiency

The S-8338ACBA-P8T1G provides high conversion efficiency across a wide load range. It is capable of operating at over 93% efficiency, and it can reach up to 98% efficiency at light load condition. The device is designed with a controlled on-time architecture, and it features a variable frequency pulse width modulation (PWM) that optimizes the efficiency of the system under variable load conditions.

High System Integration Level

The S-8338ACBA-P8T1G is equipped with a wide range of features that provide high system integration and make it simple to design a power system. It integrates essential peripheral devices, including temperature sensing circuitry, a programming voltage, protection circuitry, and a clock driver that synchronizes with an external clock. The integrated periph- erals reduce system development costs and decrease the number of components required.

Rich Set of Features

The S-8338ACBA-P8T1G comes with a rich set of features to simplify system design. It features an auto-restart function that restarts after a system shutdown or an input line over-voltage, as well as an over voltage protection (OVP) circuit that prevents output voltage from exceeding a certain threshold. The device also provides an adjustable frequency limit, adjustable current limit, and programmable soft-start.

Fast Transient Response

The S-8338ACBA-P8T1G is designed for fast transient response. The device has a fast response time, and it can achieve a quick response to changes in current or input voltage. This allows the system to maintain a stable output power even when it is subject to fluctuations in input voltage or current. This makes the device ideal for applications that are subject to frequent and rapid changes in input current or voltage.

Working Principle

The working principle of the S-8338ACBA-P8T1G is to convert an input voltage to a regulated output voltage while providing a high level of efficiency. It is a switching controller that uses pulse width modulation (PWM) to control the current magnitude and frequency of the output. The input voltage is compared to a reference voltage and converted into a digital signal that is used to control the output switch. This switch is then turned on and off at a certain frequency to regulate the output voltage. A feedback loop is used to monitor and adjust the output voltage, ensuring that it remains within a predetermined range.

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