CS5172GD8

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Introduction

The CS5172GD8 is an advanced and versatile DC-DC switching regulator developed by Texas Instruments that offers key features such as ultra-high-efficiency, programmable current limit, and tight voltage regulation. This product is designed for use in low noise, small form factor, low power-supply applications. For example, the CS5172GD8 is ideal for use in small portable electronics, battery-powered applications, wearable devices, and other low-power applications where noise and power consumption is a critical factor. In addition, the integrated current limit feature provides additional protection against overloads and other faults in the system.

Specifications

The CS5172GD8 DC-DC switching regulator offers a broad range of parameters designed to ensure reliable operation of the device and optimal system performance. Some of the primary specifications of the CS5172GD8 are listed below:

• Input Voltage Range: 2.7V–5.5V
• Output Voltage Range: 0.6V–5.5V
• Switching Frequency Range: 200kHz–2MHz
• Output Voltage Accuracy: ±2%
• Output Current Limit: 1A at VOUT≤3.3V
• Output Current Limit: 0.88A at VOUT≥3.3V

Application Field and Working Principle

The CS5172GD8 is a low-power voltage regulator that is ideal for a variety of applications, such as automotive, portable electronics, lighting, and power monitoring and control. Additionally, its integrated current limit feature ensures reliable operation and protection in the system. It is a synchronous DC-DC converter that operates in a Pulse Width Modulation (PWM) mode, thereby producing a steady and regulated output voltage even in the presence of input voltage variations.

In normal operation, a voltage is applied to the input terminals of the CS5172GD8, and this voltage is used to generate a PWM control signal using the control circuitry built in the regulator. This PWM control signal is then used to drive two external FETs (Field-Effect Transistors) in an alternating manner, thus providing a regulated output voltage. At any given point in time, one of the external FETs is switched on, allowing current to flow from the source and through the inductor, to the ground. When the FET is switched off, the commutated inductor current will be used to charge the output capacitor (via the output diode), thereby providing a steady output voltage.

The CS5172GD8 is designed to run at very high efficiency, as it uses a low output ripple frequency, optimized gate drive signal, and low on resistance of the FETs to minimize power losses. In addition, its current limit feature provides additional protection against overloads, shorted outputs, and other open-load faults that can occur in the system. This feature allows the regulator to limit the current to a predetermined safe level in case of any such fault, thus protecting both the regulator and the connected components.

Conclusion

The CS5172GD8 is an advanced and versatile DC-DC switching regulator developed by Texas Instruments. It offers ultra-high efficiency, programmable current limit, and voltage regulation accuracy of ±2%. Its integrated current limit feature provides additional protection against overloads, shorted outputs, and other open-load faults that can occur in the system. This makes it ideal for use in a variety of applications, such as automotive, portable electronics, lighting, and power monitoring and control.

The specific data is subject to PDF, and the above content is for reference