ZL6105ALBFTKR5553

Series:	Digital-DC™
Part Status:	Active
Output Type:	Transistor Driver
Function:	Step-Down
Output Configuration:	Positive
Topology:	Buck
Number of Outputs:	1
Output Phases:	1
Voltage - Supply (Vcc/Vdd):	3 V ~ 5 V
Frequency - Switching:	200kHz ~ 1.4MHz
Duty Cycle (Max):	95%
Synchronous Rectifier:	Yes
Clock Sync:	Yes
Serial Interfaces:	I²C, PMBus, SMBus
Control Features:	Current Limit, Enable, Power Good, Soft Start, Tracking
Operating Temperature:	-40°C ~ 85°C (TA)

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ZL6105ALBFTKR5553 Application Field and Working Principle

Introduction

The ZL6105ALBFTKR5553 is a versatile DC-DC switching controller from the portfolio of voltage regulator chips from PMIC (power management integrated circuits). It is specially designed to provide superior features and performance in presence of high voltage and current conditions. This device has been especially developed for especially applications in consumer and computing machines. It is equipped with various protective features to avoid short circuit, overloading and reverse current flows, which allows it to maximize its usage even in extreme conditions.

Application Field

The ZL6105ALBFTKR5553 has multiple application fields. It is mainly used in consumer electronics and computing machines. Furthermore it can also be used in various medical devices, communication systems, testing and measuring equipment, battery powered applications, automotive systems and other various applications. The device mainly targets the use of positive and negative 5 Volt or higher single supply or multiple supplies with voltage range from +12V to -12V. The power output associated with the controller can reach up to 400W in an environment of about 80° Celsius. Hence the designed usage of the device should not exceed this temperature value with the necessary margin for thermal stability.

Functional Overview

The ZL6105ALBFTKR5553 is designed for efficient switching control for DC-DC converters. It provides an integrated voltage feedback and overvoltage protection along with programmable current limit and slew rate control. All these parameters are maintained by an internal comparator that can detect the voltage range and adjustment it accordingly.The device uses pulse frequency modulation (PFM) technology that works greatly in terms of efficiency and speed. Its performance can easily be fine tuned with various parameters such as switching frequency limit and hystheresis control. In terms of output, the ZL6105ALBFTKR5553 offers a continuous output power of up to 400W with a wide voltage range of +12V to -12V.

Protection Features

The ZL6105ALBFTKR5553 has multiple safety features, designed to protect the device from over-current and overvoltage situations. It also offers thermal protection with a thermistor from the package itself. The device detects any sign of thermal drift or damage with two on-chip thermal detectors. This is particularly useful to many applications which requires regular watchdog of the device temperature. A robust short circuit protection feature is also included in the package. It protects the device form damaging even in high output capacitor conditions. It is also integrated with an overvoltage, shutdown and timer circuitry. The device also includes active first level current limit for additional protection.

Conclusion

The ZL6105ALBFTKR5553 is a versatile DC-DC switching controller from the portfolio of voltage regulator chips from PMIC (power management integrated circuits). It is particularly designed for positive and negative 5 Volt or higher single supply and multiple supplies with voltage range from +12V to -12V. The device has multiple application fields in consumer electronics, computing machines, medical devices, communication systems, testing and measuring equipment, battery powered applications, and automotive systems. The device uses pulse frequency modulation (PFM) technology that works greatly in terms of efficiency and speed. Its performance can easily be fine tuned with various parameters and can produce continuous output power of up to 400W. The ZL6105ALBFTKR5553 also offers integrated voltage feedback and overvoltage protection along with programmable current limit and slew rate control. It has multiple safety features, designed to protect the device from over-current, overvoltage and thermal drift situations. Active first level current limit is also included in the package for additional protection.

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