ZL2106ALCF

Voltage - Output (Min/Fixed):	0.6V
Base Part Number:	ZL2106
Supplier Device Package:	36-QFN (6x6)
Package / Case:	36-VFQFN Exposed Pad
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C (TJ)
Synchronous Rectifier:	Yes
Frequency - Switching:	200kHz ~ 1MHz
Current - Output:	6A
Voltage - Output (Max):	5V
Series:	--
Voltage - Input (Max):	5.5V
Voltage - Input (Min):	4.5V
Number of Outputs:	1
Output Type:	Programmable
Topology:	Buck
Output Configuration:	Positive
Function:	Step-Down
Part Status:	Active
Packaging:	Tube

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Introduction

PMIC stands for Power Management Integrated Circuit. PMICs are integrated circuits (ICs) that combine several power management functions in one IC to manage power in a wide range of applications. Voltage regulators are an important subcategory of PMICs and are used to convert a voltage from one level to another. Voltage regulators come in different types, one of them being DC DC switching regulators. The ZL2106ALCF is an example of a DC DC switching regulator. This article will discuss the application fields and working principle of the ZL2106ALCF.

Applications

The ZL2106ALCF is a cost-effective alternative to external passive regulators in small, decision-making systems where supplied voltage can fluctuate widely, such as in automotive and industrial applications. The ZL2106ALCF is an efficient, high transfer (up to 4A peak) current regulator that operates from a single +12 V or +24 V supply. Its internal current setting MOSFET refers to the integrated MOSFET that can be set by a simple external resistor.The ZL2106ALCF is particularly suitable for low voltage, low current applications such as powering low power CPUs. Low voltage systems as small as 3V can benefit from ZL2106ALCF. It can also be used to regulate line output voltages, such as +12V, +15V and +24V. ZL2106ALCF can also be used with motors to provide a stable voltage across the entire rev range, reducing fuel consumption and emissions. In addition to use with CPUs and motors, the ZL2106ALCF can also be used to develop secondary switched-mode voltage regulators. It is well suited for applications where the output voltage is no more than 10V, such as powering logic and memory circuits. It can also be used for load-sharing applications in which multiple outputs are to be controlled in series or parallelly.

Working Principle

The ZL2106ALCF operates based on switch-mode voltage regulation. This is the process of regulating a voltage by rapidly switching between high and low states. The ZL2106ALCF works by using a switch-mode control circuit that senses and regulates the input voltage across an internal MOSFET. The device is programmed by an external resistor that sets the current limit and output voltage.When the input voltage exceeds the output voltage, the MOSFET is turned off and the excess voltage is stored in an inductor. The switch-mode continuous conduction mode (CCM) keeps the average current in the inductor constant. When the MOSFET turns back on, the stored energy in the inductor is discharged through the MOSFET, thus supplying the output voltage.The ZL2106ALCF includes over-voltage, over-current and over-temperature protection. It is also EMI compliant due to its in-built noise filter. This makes it suitable for use in applications which require low noise levels, such as telecommunications and medical systems.

Conclusion

The ZL2106ALCF DC DC switching regulator is suitable for powering low power CPUs, motors, logic and memory circuits and load-sharing applications. It is an efficient and cost-effective solution for a wide range of applications and is EMI compliant. The ZL2106ALCF operates by using a switch-mode control circuit and an internal current setting MOSFET, which is set by an external resistor. It includes protection against over-voltage, over-current and over-temperature.

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