AS1331-BTDT

Voltage - Input (Max):	5.5V
Supplier Device Package:	10-TDFN (3x3)
Package / Case:	10-WFDFN Exposed Pad
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C (TA)
Synchronous Rectifier:	Yes
Frequency - Switching:	--
Current - Output:	450mA (Switch)
Voltage - Output (Max):	3.3V
Voltage - Output (Min/Fixed):	2.5V
Series:	--
Voltage - Input (Min):	1.8V
Number of Outputs:	1
Output Type:	Adjustable
Topology:	Buck-Boost
Output Configuration:	Positive
Function:	Step-Up/Step-Down
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

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Introduction

AS1331-BTDT is a DC/DC switching regulator from Analog Systems that provides a robust, reliable and efficient solution for applications requiring a high-output voltage to be generated from a low-voltage input. The device offers a wide range of output current and voltage settings, and integrates several advanced power management features for managing power in a variety of systems.

Application Field

AS1331-BTDT is suitable for a variety of applications such as battery management, portable consumer electronics, and other applications where the output voltage needs to be accurately regulated. The device features a low-power sleep mode, which minimizes power losses in battery-operated devices by running in sleep mode during periods of inactivity. The device also offers low-voltage protection, which ensures that the output voltage remains within an acceptable range during varying load conditions.The AS1331-BTDT also provides a wide input voltage range, enabling the device to be used in a variety of systems. This includes systems that use AC mains power, solar power, and other renewable energy sources. The AS1331-BTDT is capable of accepting input voltages between 4.5V and 30V.

Working Principle

The AS1331-BTDT is a DC/DC switching regulator that operates on the principle of inductive current conversion. The input voltage is converted to an alternating current through the use of an internal switching transistor. This alternating current is then rectified with a diode bridge to provide the output voltage.The device also features an inbuilt transconductance amplifier with automatic pulse-width modulation control. This is used to regulate the output voltage, and ensure that it remains within a specified range. The amplifier has a wide range of gain settings, which allows for both high and low output voltages to be achieved.

Conclusion

The AS1331-BTDT is a robust and reliable DC/DC switching regulator from Analog Systems, suitable for battery management systems, portable consumer electronics, and other applications where an accurate and reliable output voltage needs to be maintained. The regulator features a low-power sleep mode for extended battery life, and a wide range of input and output voltage settings. The device also features an inbuilt transconductance amplifier with automatic pulse-width modulation control, which ensures that the output voltage remains within an acceptable range.

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