AS1335-BTDT-AD

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Obsolete
Function:	Step-Down
Output Configuration:	Positive
Topology:	Buck
Output Type:	Adjustable
Number of Outputs:	1
Voltage - Input (Min):	2.6V
Voltage - Input (Max):	5.25V
Voltage - Output (Min/Fixed):	0.6V
Voltage - Output (Max):	5.25V
Current - Output:	1.5A
Frequency - Switching:	1.5MHz
Synchronous Rectifier:	Yes
Operating Temperature:	-40°C ~ 85°C (TA)
Mounting Type:	Surface Mount
Package / Case:	10-WFDFN Exposed Pad
Supplier Device Package:	10-TDFN (3x3)

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Introduction

The AS1335-BTDT-AD is a step-down switching regulator designed to supply regulated output voltages in mobile and high-power applications. It offers a wide input voltage range, high efficiency, and accurate control of output voltages and currents. The device is also capable of providing load regulation to 0.2%.

Application Field

The AS1335-BTDT-AD is an ideal device for powering FPGAs, microprocessors, DSPs and other components that require low-voltage and low-power DC/DC power solutions. This device is also suitable for applications that require high current-mode control, such as hard disk drives, digital audio and video products, and point-of-sale systems.

Working Principle

The AS1335-BTDT-AD is based on a two-level, synchronous switch configuration. It contains a low-loss, high-speed integrated switch and a synchronous rectifier embedded in it. The switch is used to regulate the output voltage by clocking on and off at a predetermined frequency. When the switch is on, the output voltage rises to a predetermined level and when the switch is off, it falls to a lower voltage. The switch frequency is determined by the external feedback voltage and the output width of the internal pulse width modulation (PWM) circuit. The synchronous rectifier allows the device to operate in a very efficient manner with minimal power losses during the time when the switch is off. The device also contains additional features such as programmable over current protection (OCP), over temperature protection (OTP), and adjustable soft start. These features ensure that the device operates safely and efficiently.

Conclusion

In conclusion, the AS1335-BTDT-AD is a rugged, efficient, and accurate step-down switching regulator ideal for powering FPGAs, microprocessors, DSPs and other components that require low-voltage and low-power DC/DC power solutions. Its two-level, synchronous switch configuration ensures high efficiency and accurate control of output voltages and currents. Additionally, its wide range of programmable features, such as over current protection, over temperature protection, and adjustable soft start, make it an ideal choice for powering high-power and mobile applications.

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