ISL6520IB-T

Frequency - Switching:	300kHz
Base Part Number:	ISL6520
Supplier Device Package:	8-SOIC
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Operating Temperature:	-40°C ~ 85°C (TA)
Control Features:	Phase Control
Serial Interfaces:	--
Clock Sync:	No
Synchronous Rectifier:	Yes
Duty Cycle (Max):	100%
Series:	--
Voltage - Supply (Vcc/Vdd):	4.5 V ~ 5.5 V
Output Phases:	1
Number of Outputs:	1
Topology:	Buck
Output Configuration:	Positive
Function:	Step-Down
Output Type:	Transistor Driver
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

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ISL6520IB-T is a DC-DC switching controller with integrated high side and low side drivers designed to provide a simple and efficient power supply solution for today’s electronics. It employs advanced hysteretic control, allowing it to respond quickly to transient load changes while maintaining a consistent output voltage. The device is capable of delivering 3A of output current per rail with a switching frequency of 200kHz, and is available in both SOT23-5 and DFN packages.The ISL6520IB-T is an ideal choice for applications involving point-of-load (PoL) DC power supplies, multi-rail stepped down supplies, and automotive or industrial circuits, among a host of other applications. It provides for up to two channels of output, with a wide input voltage range of 2.5V to 36V, and adjustable output voltage from 0.9V to 28V.The ISL6520IB-T includes several advanced features to help ensure reliable, efficient, and safe operations in any given system. These include programmable over-current protection, programmable over-temperature protection, soft start, and thermal foldback. It is designed to be reverse-voltage protected, ESD protected, and to survive load dump transients of up to 50V.The ISL6520IB-T is a highly integrated solution with a programmable open-loop frequency of up to 500kHz and an adjustable high frequency compensation that can reduce EMI generation. It features an internal voltage reference of 1.223V and an adjustable clock rate over-ride of up to 5x the internal oscillator frequency. In addition, it offers internal slope compensation for fast transient response, as well as programmable under-voltage lockout.The ISL6520IB-T utilizes an advanced hysteretic control loop to efficiently control the output voltage. The device senses both the output voltage and transients from the load, and rapidly adjusts the output to maintain the desired voltage. This is achieved by sensing the error between the internal reference voltage and the output voltage, and modulating the PWM signal as necessary for stable operation.Overall, the ISL6520IB-T is highly compact and integrates many features into a small package. With its wide input voltage range, adjustable output voltage, and advanced features, it is an ideal choice for a wide range of applications. Its fast transient response and low EMI generation make it ideal for automotive and other industrial applications.

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