AS1382A-BWLT-AD

Voltage - Input (Max):	5.5V
Supplier Device Package:	6-WLCSP (1.22x0.85)
Package / Case:	6-UFBGA, WLCSP
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C (TA)
Synchronous Rectifier:	Yes
Frequency - Switching:	4MHz
Current - Output:	1A
Voltage - Output (Max):	3.35V
Voltage - Output (Min/Fixed):	0.58V
Series:	--
Voltage - Input (Min):	2.7V
Number of Outputs:	1
Output Type:	Adjustable
Topology:	Buck
Output Configuration:	Positive
Function:	Step-Down
Part Status:	Active
Packaging:	Tape & Reel (TR)

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AS1382A-BWLT-AD belongs to the Voltage Regulators - DC DC Switching Regulators family. It is an integrated step-down DC-DC switching regulator designed to provide reliable power conversion under industrial and consumer applications. It is suitable for applications like cellular phones, PDAs, MP3 players, digital cameras, game consoles and other consumer electronics that require low power consumption.The AS1382A-BWLT-AD is an integrated 3.3V, 0.4A step-down DC-DC switching regulator. The integrated circuit includes a voltage regulator, a Charge Pump controller, a low ripple step-down regulator, a current limit protection, an overvoltage protection and a temperature sensing circuit. The input voltage range is 4.5V to 32V and the output voltage is programmable between 0.8V to 3.3V. It is capable of providing a peak current of 0.4A, with an efficiency of up to 90%. The regulator provides an important feature of automatic power saving mode, which allows it to reduce the output current to zero in the stand-by mode.The regulator provides several features that make it suitable for many applications. It offers the output voltage accuracy of ±1.5%, and it has a low dropout of 200mV at full load. The output transformer is designed to carry power up to 400W, which makes it ideal for high power applications. The inductor ripple current is also suppressed to provide stable operation with higher efficiency. The regulator also has thermal/short-circuit protection. It also supports standby current down to 1μA and active mode current down to 50μA.The circuit operates at a frequency of 1.2MHz to 6MHz, depending on the output load. The operating frequency can be adjusted by the external resistor and the circuit varies the output voltage depending on the input voltage, which helps to reduce the power dissipation. In a typical application, the total output ripple voltage is below 25mVpp and the power supply rejection ratio is 75dBc, which ensures reliable operation of the boards even in noisy industrial and automotive environments.The design of the regulator is flexible and it can be customized for different applications. It can operate in both PWM (pulse width modulation) and PFM (power frequency modulation) modes to offer better control over the output voltage and current. The regulator also supports synchronous rectification, which reduces the power dissipation. With all these features, the AS1382A-BWLT-AD is ideal for applications where low power is an important factor.

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