BD9701T-V5

Series:	--
Packaging:	Bulk
Part Status:	Active
Function:	Step-Down
Output Configuration:	Positive
Topology:	Buck
Output Type:	Adjustable
Number of Outputs:	1
Voltage - Input (Min):	8V
Voltage - Input (Max):	35V
Voltage - Output (Min/Fixed):	1V
Voltage - Output (Max):	32V
Current - Output:	1.5A
Frequency - Switching:	100kHz
Synchronous Rectifier:	No
Operating Temperature:	-40°C ~ 85°C (TA)
Mounting Type:	Through Hole
Package / Case:	TO-220-5 Full Pack
Supplier Device Package:	TO-220FP-5
Base Part Number:	BD970*

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BD9701T-V5 Application Field and Working Principle

Introduction

BD9701T-V5 is a DC-DC switching regulator with peak current mode control and voltage tracking output. It is capable of driving up to 1.5A loads and contains on-chip features like Soft-start, Under-Voltage Lockout (UVLO), cycle-by-cycle peak current limit and thermal protection. With its fast response time, high switching frequency and low quiescent current, BD9701T-V5 is suitable for a wide range of power applications.

Application Field

BD9701T-V5 is ideal for powering low-noise, low-power digital and analog circuits. It is suitable for use in a wide range of applications such as power supplies for various types of electronic systems and embedded circuits, portable electronic devices, notebook computers, and many other DC/DC converter applications.Furthermore, the BD9701T-V5 is very well suited for automotive applications, with its extended operating temperature range and high efficiency. Its low operation current ensures that the BD9701T-V5 is able to respond rapidly to changing load conditions, while still maintaining voltage stability.

Working Principle

The BD9701T-V5 operates on the peak-current-mode control principle. The peak current mode control enables the BD9701T-V5 to remain in continuous control of the output voltage and to provide excellent transient response. When the output voltage drops, the BD9701T-V5 increases the duty cycle to compensate the drop in output voltage. When the output voltage rises, the duty cycle is reduced to maintain the output voltage level.The BD9701T-V5 provides users with a comprehensive protections and monitoring functions. This includes over-voltage protection, over-current protection, over-temperature protection, and voltage tracking. It also provides a programmable soft start feature to prevent inrush current from damaging the system.The BD9701T-V5 incorporates several control features to ensure the preservation of the output noise and dynamic performance parameters. Specifically, a change in load current or output voltage will not affect the normal operation of the regulator.

Conclusion

The BD9701T-V5 is a highly efficient, low-noise, and low-power DC-DC switching regulator ideally suited for a wide variety of applications, including automotive and portable electronic devices. Its peak-current-mode control and its comprehensive protection and monitoring functions ensure maximum reliability and make it a perfect solution for power supplies and embedded circuits.

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