PQ1CZ21H2ZPH

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Obsolete
Function:	Step-Down
Output Configuration:	Positive or Negative
Topology:	Buck
Output Type:	Adjustable
Number of Outputs:	1
Voltage - Input (Min):	8V
Voltage - Input (Max):	35V
Voltage - Output (Min/Fixed):	±1.26V
Voltage - Output (Max):	35V, -30V
Current - Output:	1.5A
Frequency - Switching:	100kHz
Synchronous Rectifier:	No
Operating Temperature:	-40°C ~ 85°C (TA)
Mounting Type:	Surface Mount
Package / Case:	TO-252-6, DPak (5 Leads + Tab)
Supplier Device Package:	SC-63

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PQ1CZ21H2ZPH Application Field and Working Principle

Introduction:

The PQ1CZ21H2ZPH is a Multi-Mode switching voltage regulator (MMSVreg) developed by NEC. It is designed for general purpose DC-DC converter applications. The PQ1CZ21H2ZPH provides three independent operating modes including: constant-voltage (CV), constant-current (CC) and user-defined mode (UDF). The PQ1CZ21H2ZPH features a wide output voltage range, efficient power conversion and integrated MOSFET for low component count and better performance. This article will focus on the application field and working principle of the PQ1CZ21H2ZPH.

Application Field:

The PQ1CZ21H2ZPH can be used in many different kinds of applications. It is suitable for mobile phones, digital cameras, tablet PCs, notebook PCs, LCD TVs and other portable devices. It can also be used in embedded systems such as industrial automation, medical device, automotive and communication applications.

Working Principle:

The PQ1CZ21H2ZPH works by switching between the three different operating modes. It includes a synchronous buck regulator and a linear regulator. During CC mode, the linear regulator will switch on to provide the required output current. During CV mode, the buck regulator will switch on and provide the required output voltage. Finally, during UDF mode, the user defined mode will switch on to provide the output voltage and current depending on user defined settings. In addition, the PQ1CZ21H2ZPH has built-in power management function to ensure highest efficiency with lowest power consumption.

Conclusion:

The PQ1CZ21H2ZPH is a Multi-Mode switching voltage regulator that provides three independent operating modes for various applications. It offers high efficiency power conversion and integrated MOSFET for better performance. The PQ1CZ21H2ZPH is designed for mobile phones, tablets, notebooks, LCD TVs and other portable devices, as well as industrial automation, medical device, automotive and communication applications. The device works by switching between the three different modes including constant-voltage (CV), constant-current (CC) and user-defined mode (UDF). It also has built-in power management functions for highest efficiency with lowest power consumption.

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