XC6123E745ER-G

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Type:	Watchdog Circuit
Number of Voltages Monitored:	1
Output:	Open Drain or Open Collector
Reset:	Active Low
Reset Timeout:	800 ms Typical
Voltage - Threshold:	4.5V
Operating Temperature:	-40°C ~ 85°C (TA)
Mounting Type:	Surface Mount
Package / Case:	6-UFDFN Exposed Pad
Supplier Device Package:	6-USPC (1.8x2)

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Introduction

XC6123E745ER-G is an 8A LDO regulator, designed for PMIC circuits, that combines the features of latching reset circuits and voltage-detecting regulators in one circuit. It is made from low-current CMOS technology and can provide high-output current and low-voltage drop across a wide range of applications. The XC6123E745ER-G has two outputs and each one can be configured for independent latching-reset and/or voltage-detecting circuits.

Application Fields

The XC6123E745ER-G is typically used in applications where a high-bandwidth voltage regulation is needed. The LDO can be used in applications such as high-efficiency servers, digital camera modems, and network routing equipment. It can also be used in automotive applications such as power supplies, emergency lighting, and air conditioning.

Working Principle

The XC6123E745ER-G uses a voltage-controlled CMOS regulator architecture to achieve high-bandwidth output regulation. The LDO regulates an output voltage using an on-chip current-drive circuit and voltage-divider resistors. The voltage-divider resistors must be programmed from the inputs to determine the output voltage.When there is an over-voltage situation, the LDO will compare the set voltage and the actual voltage. If the voltage is higher than the set voltage, the current-drive circuit will be activated and the output voltage will be pulled down. The output voltage is then regulated and maintained by the LDO. The current-drive circuit will remain active until the voltage is reduced to the set level.On the other hand, if the output voltage is lower than the set voltage, the current-drive circuit will be deactivated and the LDO will attempt to pull the voltage back up by sensing the difference between the two voltages. If the difference is more than the set level, the current-drive circuit will be activated again and the voltage will be pulled up.

Conclusion

The XC6123E745ER-G is designed for PMIC circuits and combines the features of latching reset circuits and voltage-detecting regulators. The LDO can provide high-bandwidth output regulation, achieving high-output current and low-voltage drop across a wide range of applications. The current-drive circuit is used to regulate and maintain the output voltage. The XC6123E745ER-G can be used in applications such as high-efficiency servers, digital camera modems, automotive applications, and network routing equipment.

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