PQ1CZ41H2ZPH Integrated Circuits (ICs)

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Part Status:	Obsolete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:	300kHz
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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Introduction

PQ1CZ41H2ZPH is a voltage regulator, specifically adapted to the regulation of DC-DC switching regulators. It has a wide range of power supply applications, such as powering digital and analog circuits or supplying power to microprocessors and other logic circuits. PQ1CZ41H2ZPH is a simple, low-power, reliable, and cost-effective voltage regulator.

Application Field

PQ1CZ41H2ZPH is a voltage regulator that is specifically designed for DC-DC switching regulators. It has a low quiescent current and can be easily configured to regulate output voltages ranging from 3.3V to 10V. It also features an adjustable output voltage setting, over-voltage protection and current limiting.PQ1CZ41H2ZPH is suitable for various applications such as powering digital and analog circuits, supplying power to microprocessors and other logic circuits, LCD backlighting, USB charging and power supplies for consumer electronics. It is also ideal for industrial applications such as motor control, industrial control systems and machine automation.

Working Principle

PQ1CZ41H2ZPH voltage regulator works according to the principle of pulse width modulation (PWM). The PWM voltage is sensed and an error amplifier adjusts the duty cycle of the pulse width modulation to accurately regulate the output voltage. The duty cycle is calculated so that the average output voltage remains constant, regardless of the load current.PQ1CZ41H2ZPH also features adjustable over-voltage protection, which limits the output voltage when it exceeds a certain value, and current limiting which protects the device from over-current surges. The regulator also has an internal current-sense switching circuit, which can be used to limit the output current. This is useful for preventing current spikes, which may damage other components.

Conclusion

PQ1CZ41H2ZPH is a simple, low-power, reliable, and cost-effective voltage regulator specifically designed for DC-DC switching regulators. It is suitable for a wide range of applications, and features adjustable output voltage, over-voltage protection, current-sense switching, and current limiting. Its principle of operation is based on pulse width modulation, which accurately regulates the output voltage and current.

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