ISL6269BIRZ-T

Frequency - Switching:	200kHz ~ 600kHz
Base Part Number:	ISL6269
Supplier Device Package:	16-QFN (4x4)
Package / Case:	16-VQFN Exposed Pad
Operating Temperature:	-40°C ~ 100°C (TA)
Control Features:	Enable, Frequency Control, Phase Control, Power Good
Serial Interfaces:	--
Clock Sync:	No
Synchronous Rectifier:	Yes
Duty Cycle (Max):	--
Series:	Robust Ripple Regulator™ (R3)
Voltage - Supply (Vcc/Vdd):	5 V ~ 25 V
Output Phases:	1
Number of Outputs:	1
Topology:	Buck
Output Configuration:	Positive
Function:	Step-Down
Output Type:	Transistor Driver
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction

The ISL6269BIRZ-T (ISL6269 for short) is a monolithic switching regulator controller designed for use in a wide range of applications including portable multimedia equipment, smart phones, PDAs, and other communication devices. It was developed and manufactured by Intersil Corporation, a leader in mixed-signal technology. The ISL6269 is highly integrated and features over-current and over-temperature protection. It is a DC-DC buck converter controller with adjustable switching frequency and integrated voltage loop control.

Application Field

The ISL6269 is primarily used in DC-DC switching applications, such as embedded power supplies, where high efficiency and low power consumption are essential. It can be used with either synchronous or non-synchronous rectifiers, and is compatible with both stepping motors and permanent-magnet motors. It can also be used in portable communication devices, media players, and other multimedia equipment.

Working Principle

The ISL6269 operates on the principle of Pulse Width Modulation (PWM). This method of controlling the output voltage allows for higher efficiency and lower power consumption. With PWM, the ISL6269 regulates the pulse width to vary the duty cycle of its output. This allows for the regulation of voltage to occur over a wide range of temperatures and load conditions.The ISL6269 also incorporates several important safety features, including over-current protection, over-temperature protection, and over-voltage protection. These features ensure that the device operates at optimal levels and is protected from damage in the event of a failure.

Conclusion

The ISL6269 is a highly efficient DC-DC switching regulator controller with pulse width modulation that is ideal for applications such as embedded power supplies, portable multimedia equipment, and other communication devices. Its integrated safety features provide protection in the event of a failure. With its wide range of applications, the ISL6269 is a versatile, reliable, and cost-effective solution for a wide variety of power supply needs.

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