AS1362-BTTT-45

Voltage Dropout (Max):	0.2V @ 300mA
Supplier Device Package:	TSOT-23-6
Package / Case:	SOT-23-6 Thin, TSOT-23-6
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C
Protection Features:	Over Current, Over Temperature
Control Features:	Enable, Power Good
PSRR:	92dB ~ 62dB (1kHz ~ 100kHz)
Current - Quiescent (Iq):	90µA
Current - Output:	300mA
Series:	--
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	4.5V
Voltage - Input (Max):	5.5V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

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Introduction

AS1362-BTTT-45 is one of advanced Analogic Tech\'s linear voltage regulators. It can turn the input voltage in the range of 2.2V-5.5V into adjustable output voltage of 1.2V ~ 4.5V with output current up to 500mA. It is also equipped with active output reset and improved accuracy of ±1% (at 5V, TA=25℃). This product is designed with low dropout voltage and high PSRR to deliver low output noise, ideal for portable systems and battery-powered applications. This article will introduce the application fields and working principles of AS1362-BTTT-45.

Application Field

AS1362-BTTT-45 is suitable for applications such as HotSpot, Bluetooth, Zigbee, WLAN, wide area network (WAN) and cellular phone, etc. It has high output voltage accuracy, low quiescent current, high PSRR characteristics and can support high power. It also has very competitive advantages in wireless communications, portable audio and video equipment, instrumentation and other portable devices.It can be used as the power supply for the main engine and peripheral systems, as well as the power management unit of portable computing devices or embedded devices. Its main functions include DC-DC boosting or voltage boosting, DC-DC buck or voltage buck, over-current protection and battery charging control. It has a fast response to sudden current changes and is suitable for pulsed load current applications.

Working Principle

AS1362-BTTT-45 uses linear voltage regulator for its working principle. Linear voltage regulator works by using a voltage divider to produce a reference voltage and feed into the non-inverting terminal of the error amplifier. The inverting terminal of the error amplifier is connected to the feedback network, which will adjust the output voltage proportionally to the reference voltage. When the feedback voltage is higher than the reference voltage, the output voltage will be maintained, and it will be decreased when the feedback voltage is lower than the reference voltage.The linear voltage regulator also has two signals for control. A Voltage Enable signal and Current Limit signal, can turn on and off the voltage regulator and control the current limit of the circuit. The Voltage Enable signal is an active low signal, which is used to turn on the circuit and the Current Limit signal is to limit the current of the circuit.

Conclusion

To sum up, AS1362-BTTT-45 is one highly advanced linear voltage regulator from Analogic Tech, with a wide range of applications in portable devices and embedded systems. The working principle is based on a linear voltage regulator and has two signals for control. With its high accuracy, low quiescent current, high PSRR characteristics and high current output, it is an ideal choice for portable and wireless communication systems.

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