CS5212EDR14

Frequency - Switching:	150kHz ~ 750kHz
Base Part Number:	CS5212
Supplier Device Package:	14-SOIC
Package / Case:	14-SOIC (0.154", 3.90mm Width)
Operating Temperature:	-40°C ~ 85°C (TA)
Control Features:	Frequency Control
Serial Interfaces:	--
Clock Sync:	No
Synchronous Rectifier:	Yes
Duty Cycle (Max):	100%
Series:	--
Voltage - Supply (Vcc/Vdd):	3.1 V ~ 7 V
Output Phases:	1
Number of Outputs:	1
Topology:	Buck
Output Configuration:	Positive
Function:	Step-Down
Output Type:	Transistor Driver
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

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CS5212EDR14 Application Field and Working Principle

Introduction

The CS5212EDR14 is a single-phase synchronous buck DC-DC converter controller with an integrated linear regulator, voltage detection circuit, and load disconnect function which is used as an on-board system power supply solution in applications such as servers, server I/O boards, blade servers, and networking. It is based on an advanced control topology and can output 0.4V to 1.1V in 0.1V increments, the switching frequency is selectable between 200 kHz and 1 MHz, and the switch controller is capable of delivering 12A of continuous current at maximum.

Classification

The CS5212EDR14 falls under the classification of PMIC - Voltage Regulators - DC DC Switching Controllers. This type of switching controller is an integrated circuit that operates as a switch or a pulse width modulated (PWM) network. It is used to regulate the power supply, providing a strong and constant source of power to the load devices or other components.

Applications

The CS5212EDR14 switching controller is ideal for high-performance, low-noise applications such as servers, server I/O boards, blade servers, and networking devices. It is also great for power supply designs that require high efficiency, low EMI, and small space. The controller supports a wide range of output voltages, which makes it suitable for different applications.

Working Principle

The CS5212EDR14 is based on a synchronous buck topology, which utilizes a low side MOSFET to regulate the output voltage. The controller controls the MOSFET using an internal voltage loop and current sensing, thus allowing for precise voltage control with minimal ripple. The controller is also capable of peak current mode control and fast line transient response.The controller uses an external control signal to control the output voltage. This control signal can be externally adjusted, which is used to adjust the reference voltage to achieve the desired output voltage. The CS5212EDR14 also features an integrated linear regulator which provides a stable and low noise output voltage.Another feature of the CS5212EDR14 is its load disconnect function which enables it to detect a sudden load fault or a short circuit and disconnect its output stage, thus preventing further damage and ensuring the safety of the system.

Conclusion

The CS5212EDR14 is a single-phase synchronous buck DC-DC converter controller designed for high-performance, low-noise applications such as servers, server I/O boards, blade servers, and networking devices. It is based on an advanced control topology which utilizes a low side MOSFET to regulate the output voltage with an external control signal. The controller also features an integrated linear regulator and a load disconnect function which enables it to detect a sudden load fault or a short circuit. The CS5212EDR14 falls under the classification of PMIC - Voltage Regulators - DC DC Switching Controllers.

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