AS7809ADTR-G1

Voltage Dropout (Max):	2V @ 1A (Typ)
Supplier Device Package:	TO-252-2
Package / Case:	TO-252-3, DPak (2 Leads + Tab), SC-63
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C
Protection Features:	Over Temperature, Short Circuit
Control Features:	--
PSRR:	61dB (120Hz)
Current - Quiescent (Iq):	6mA
Current - Output:	1A
Series:	--
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	9V
Voltage - Input (Max):	29V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Active
Packaging:	Tape & Reel (TR)

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• Introduction

The AS7809ADTR-G1 integrated circuit is an advanced system-on-chip (SoC) linear voltage regulator that is specifically designed for providing a regulated output power for a wide variety of applications. The AS7809ADTR-G1 is available in a small, 4 mm × 4 mm QFN package and it is designed for superior performance in applications requiring low input and output voltage level shifts, low standby power dissipation, high load current, high switching frequencies and a wide operating temperature range.

• Applications

The AS7809ADTR-G1 is suitable for a variety of applications such as low noise or low standby power equipment, mobile computing, mobile communication and industrial control. It is also used in power supplies that operate at high frequencies, in imaging equipment, video displays and in any other application that needs a regulated output voltage. Moreover, the AS7809ADTR-G1 is also suitable for automotive and transportation applications due to its high load current capability and wide temperature range.

• Working Principle

The AS7809ADTR-G1 employs a high current-mode feedback-controlled architecture which provides a high-load current capability with excellent output voltage regulation. The integrated feedback loop controls the onboard voltage regulator that can be adjusted by either the half-bridge or full-bridge voltage feedback circuit. Output voltage is adjustable over a wide range of 5V to 28V in 100mV increments. The AS7809ADTR-G1 includes a unique adjustable current-limit feature to prevent current overshoot and circuit protection against over-voltage and over-temperature conditions.The AS7809ADTR-G1 also features thermal shutdown protection which controls the maximum junction temperature and can be enabled or disabled according to application needs. The operating temperature of the device is specified from -40 °C to +85 °C.

• Conclusion

The AS7809ADTR-G1 is a robust power management IC designed for various applications requiring low input and output voltage level shifts and low standby power dissipation. Its chip size and resistance to harsh environmental conditions make it suitable for automotive, mobile and industrial applications. The device supports a wide range of input and output voltages, high load current and switching frequencies, ensuring outstanding performance and power efficiency. This versatile IC is an excellent choice for any application requiring high current and reliability in an all-in-one, no-heat sink solution.

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