With the rapid development of smart cities and intelligent terminals, security and surveillance systems have been widely adopted, placing increasingly high demands on power management chips. A typical security monitoring system consists of an image sensor, an A/D converter, an embedded processor, memory, and interface circuits. In such applications, the Low Dropout Linear Regulator (LDO) serves as an ideal power management solution due to its low noise, high Power Supply Rejection Ratio (PSRR), and simple external circuitry, effectively meeting the stringent noise sensitivity requirements of security monitoring systems. Compared to switching power supplies, LDOs can provide a cleaner power supply, ensuring that image and audio quality remain unaffected by power supply noise.
In security monitoring systems, the 300mA LDO plays a critical role, particularly in providing stable power to the image sensor. An image sensor typically requires three power rails: digital supply (DVDD), analog supply (AVDD), and I/O voltage (DOVDD). Among these, AVDD is the most sensitive to ripple and noise; power supply noise can cause horizontal stripes in the image, which becomes more noticeable especially in low-light conditions. The 300mA output current can meet the power requirements of most image sensors. Its high PSRR characteristic effectively suppresses noise and ripple from the input source, while its low-noise performance ensures the sensor itself does not introduce additional interference. Furthermore, the LDO's fast load response capability handles the instantaneously changing load characteristics of image sensors, ensuring power supply stability. These advantages make the 300mA LDO an indispensable power management device in security monitoring systems.
The HP6017 series 300mA LDO from Hypwr is a high-performance power management chip specifically designed for applications like security monitoring. This product features low dropout voltage, low noise, high PSRR, and fast response, enabling it to provide clean and stable power to image sensors and processors. The HP6017 supports an input voltage range of 2.5V to 6.5V, with selectable output voltages from 1.2V to 3.6V. It is available in various compact packages such as SOT23-5, SOT-23, DFN1 * 1-4, and TDFN1 * 1-4, making it highly suitable for space-constrained security monitoring devices.
The following is a parameter comparison table between Hypwr's HP6017 series LDO and other similar products:
Parameter Metric | Hypwr HP6017 Series | Standard LDO Products | Advantage Demonstrated |
Output Current | 300mA | Typically 150-250mA | Stronger drive capability |
PSRR @1kHz | 75dB | Typically <60dB | Better noise suppression |
Output Noise | 20μVrms | Typically >30μVrms | Clearer image quality |
Quiescent Current | 45μA | Typically >50μA | Lower power consumption |
Dropout Voltage @200mA | 110mV | Typically >150mV | Higher efficiency |
Operating Temp. Range | -40℃ to +85℃ | Typically -40℃ to +85℃ | Industrial-grade reliability |
Hypwr Microelectronics is a well-known domestic provider of high-reliability, high-performance, and high-quality IC chips and solutions, with extensive R&D and industrialization experience in the field of power management chips. As an authorized distributor of Hypwr, MANDU Technology provides comprehensive technical support, product selection guidance, and sample services, helping customers quickly complete design schemes and put them into production. With over a decade of experience in the industry, MANDU Technology has established a strong corporate reputation and credibility, enabling it to offer professional technical services and high-quality product support to customers.
About Mandu Technology
Shenzhen Mandu Technology Co., Ltd. has steadfastly centered its operations on the distribution of high-performance, high-quality, and highly reliable integrated circuit products. Its portfolio encompasses memory chips, differential crystal oscillators, and MCU microcontrollers, while progressively integrating analog signal chain products. The company prides itself on delivering comprehensive and cost-effective solutions to its customers. Its products find applications across a broad spectrum of industries, including but not limited to network communication, industrial control, robotics, medical equipment, personal health, and numerous other fields.
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