78ST233SC Allicdata Electronics
Allicdata Part #:

78ST233SC-ND

Manufacturer Part#:

78ST233SC

Price: $ 0.00
Product Category:

Power Supplies - Board Mount

Manufacturer: Texas Instruments
Short Description: DC DC CONVERTER 3.3V 2A
More Detail: Non-Isolated PoL Module DC DC Converter 1 Output 3...
DataSheet: 78ST233SC datasheet78ST233SC Datasheet/PDF
Quantity: 1000
1 +: 0.00000
Stock 1000Can Ship Immediately
$ 0
Specifications
Voltage - Output 3: --
Base Part Number: 78ST233
Size / Dimension: 0.94" L x 0.90" W x 0.34" H (23.9mm x 22.9mm x 8.6mm)
Package / Case: 3-SMD Module
Mounting Type: Surface Mount
Efficiency: 82%
Operating Temperature: -40°C ~ 85°C
Features: OTP, SCP
Applications: ITE (Commercial)
Current - Output (Max): 2A
Series: 78ST200
Voltage - Output 2: --
Voltage - Output 1: 3.3V
Voltage - Input (Max): 15V
Voltage - Input (Min): 7V
Number of Outputs: 1
Type: Non-Isolated PoL Module
Part Status: Obsolete
Packaging: Tray 
Description

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DC-DC converters are typically used to provide power to various electronic devices by converting direct current (dc) to dc. The 78ST233SC is a synchronous high efficiency, low power buck-boost switching converter, ideally suited for use in many applications like low power embedded systems, battery powered equipment, DC-DC converters and voltage regulators. It features a wide input voltage range, low voltage start-up and fast transient response, providing greater flexibility than many conventional converters. Its advanced design and low decoupling capacitance makes it an ideal choice for applications where high efficiency, reduced size and low power dissipation are key elements.

Application Field of 78ST233SC

The 78ST233SC is designed for easy integration into low power, battery powered equipment such as portable devices, sampling systems, consumer products, medical instruments and remote sensing systems. Its small size and high efficiency make it suitable for a wide range of applications.

It provides a wide 2.5V to 15V (maximum) operation at up to 3A load current, making it suitable for applications such as powering low power devices like microprocessors, memory, and other Power ICs. By using an external PWM control, the buck-boost converter can be used to generate dynamic voltage changes, further allowing the device to meet the power requirements of low power embedded systems. The 78ST233SC is also suitable for low power voltage regulation applications.

Working Principle of 78ST233SC

The 78ST233SC is a synchronous buck-boost switching converter. It is designed to provide a regulated output voltage with high efficiency, low power and a wide input voltage range. The key components of the 78ST233SC are an inductor, two switches (MOSFETs), output diode and an output capacitor. The control IC senses the output voltage at a feedback pin and regulates the output voltage to the specified set point. In a buck-boost converter, the duty cycle of the switches is modulated to adjust the output voltage.

The 78ST233SC uses a fixed frequency, variable duty cycle control scheme to regulate the output voltage. During steady state, the duty cycle is proportional to the output voltage. The 78ST233SC operates by charging the output capacitor via the inductor or discharging the output capacitor to the input supply depending on the duty cycle. As the output voltage approaches the set point, the duty cycle of the pulses automatically reduces and the output voltage is held constant. The 78ST233SC can provide input voltage conversion operation with an efficiency up to 90%.

In summary, the 78ST233SC is a synchronous buck-boost switching converter, combining excellent power conversion efficiency and powerful features into a small package. With its wide input voltage range, high efficiency operation up to 90% and small size, the 78ST233SC is an ideal choice for powering low power devices in numerous applications.

The specific data is subject to PDF, and the above content is for reference

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