PQ1CZ41H2ZZH

Voltage - Input (Max):	35V
Supplier Device Package:	SC-63
Package / Case:	TO-252-6, DPak (5 Leads + Tab)
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C (TA)
Synchronous Rectifier:	No
Frequency - Switching:	300kHz
Current - Output:	1.5A
Voltage - Output (Max):	35V, -30V
Voltage - Output (Min/Fixed):	±1.26V
Series:	--
Voltage - Input (Min):	8V
Number of Outputs:	1
Output Type:	Adjustable
Topology:	Buck
Output Configuration:	Positive or Negative
Function:	Step-Down
Part Status:	Obsolete
Packaging:	Tube

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Introduction

PQ1CZ41H2ZZH is an integrated switching regulator used in DC-DC voltage regulation applications. This device provides adjustable or fixed output voltage and is available in various packages. It features low quiescent current, fast transient response and low output noise. This device is commonly used in many power management and automotive applications where voltage regulation is required.

Application Field

PQ1CZ41H2ZZH is a complete DC-DC step-down switching regulator that is suitable for most DC-DC voltage regulation applications. This device can be used in many applications such as battery-powered mobile devices, point-of-load regulation, automotive power management and distributed power systems, etc. It is especially suited for applications with limited space, such as PDAs and smartphones, where an on-board solution is needed.

Working Principle

PQ1CZ41H2ZZH is a switching regulator which operates by controlling the duty ratio of the switches in the Voltage Regulator circuit. The basic operation of this device is to control the duty ratio using a Pulse Width Modulator (PWM) in order to control the output voltage. The PWM signal is generated by the internal control circuit. The duty cycle of this signal is determined by sensed voltage, feedback voltage and input voltage. The device also features protection functions such as over-current protection, under-voltage lockout, thermal shutdown and over-temperature protection.

PQ1CZ41H2ZZH is designed to provide good efficiency, low noise and fast transient response. The switching frequency is adjustable from 100kHz to 1MHz, allowing it to be optimized for the desired application. Additionally, it has an adjustable output voltage range of 1.5V to 11V.

Conclusion

PQ1CZ41H2ZZH is an integrated switching regulator used for DC-DC voltage regulation applications. It is specially designed for battery-powered mobile devices, point-of-load regulation, automotive power management and distributed power systems. This device offers adjustable or fixed output voltage, low quiescent current, fast transient response, low output noise and adjustable switching frequency. Additionally, it features protection functions such as over-current protection, under-voltage lockout, thermal shutdown and over-temperature protection.

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