APX803S05-29SA-7

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Type:	Simple Reset/Power-On Reset
Number of Voltages Monitored:	1
Output:	Open Drain or Open Collector
Reset:	Active Low
Reset Timeout:	20 ms Minimum
Voltage - Threshold:	2.93V
Operating Temperature:	-40°C ~ 85°C (TA)
Mounting Type:	Surface Mount
Package / Case:	TO-236-3, SC-59, SOT-23-3
Supplier Device Package:	SOT-23

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• Introduction

APX803S05-29SA-7 is a low voltage dropout (LDO) voltage regulator, which belongs to the PMIC – Supervisors category. It is designed to offer protection against overvoltage and overcurrent, while still maintaining wide-ranging input/output voltage and current requirements. APX803S05-29SA-7 can be used in a wide range of applications, such as radio frequency (RF) transceiver, microprocessor, and social application processor (SAP) circuits or high-end graphics systems.

• Application Field

APX803S05-29SA-7 can be used to provide stable voltage output even when input voltage fluctuates or decreases, and it is designed to reduce system costs by reducing the number of components required to achieve stable output. In the system of radio frequency (RF) transceiver, APX803S05-29SA-7 is used to provide the RF power amplifier and frontal circuitry with a stable voltage output. It enables the RF transceiver to transmit wide frequency bands of signals without distortion. The microprocessor, social application processor (SAP) and high-end graphics systems also benefit significantly from APX803S05-29SA-7. It provides the full speed processing and high-performance graphics Image processing needed without compromising power efficiency or sacrificing power performance by introducing bulk load.

• Working Principle

APX803S05-29SA-7 can sustain an output voltage range from 0.89 V to 5.5V for a wide range of input voltages. It is designed to be a voltage regulator that provides a stable output voltage with a wide variety of input voltages. It also has an internal power consumption of just 0.1 mA. This ensures that it consumes minimal amount of power while delivering its set output voltage.The major components of APX803S05-29SA-7 are the controller and the power MOSFETs, in addition to the internal control circuit. The power MOSFETs are designed to switch on and off in sequence, allowing it to regulate the output voltage. During the operation, the controller continuously measures the output voltage and adjusts the duty cycle of the power MOSFETs, which in turn adjusts the output voltage. This process allows the APX803S05-29SA-7 to maintain a stable output voltage even when the input voltage fluctuates.In addition, the APX803S05-29SA-7 also provides overvoltage and overcurrent protection. This is achieved by sensing the output voltage or the current and shutting off the power MOSFETs when either one of the thresholds is exceed.

• Conclusion

APX803S05-29SA-7 is a low voltage dropout voltage regulator that belongs to the PMIC – Supervisors category. It can be used in radio frequency (RF) transceiver, microprocessor and social application processor (SAP) circuits or high-end graphics systems, to provide a stable voltage output. Moreover, The APX803S05-29SA-7 achieves this by continuously measuring the output voltage, adjusting the duty cycle of the power MOSFETs. Additionally, it also provides overvoltage and overcurrent protections, making it an ideal choice for a wide range of applications.

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