ISL6353CRTZ-T

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Applications:	Controller, DDR, Intel VR12
Voltage - Input:	4.5 V ~ 25 V
Number of Outputs:	1
Voltage - Output:	0.25 V ~ 1.52 V
Operating Temperature:	0°C ~ 70°C
Mounting Type:	Surface Mount
Package / Case:	40-VFQFN Exposed Pad
Supplier Device Package:	40-TQFN (5x5)
Base Part Number:	ISL6353

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

(, 5.5 6 )

Introduction

ISL6353CRTZ-T is a special-purpose voltage regulator from Intersil Corporation. It offers an integrated high-side and low-side gate driver for two N-channel MOSFETs, enabling synchronous buck converters with minimum component count and basic knowledge of MOSFET operation. By combining the low-side and high-side MOSFET driver, the IC fully integrates voltage regulation functions and offers excellent protection features. In addition, it employs two independent gates for the low-side and high-side MOSFETs and has an adjustable switching frequency up to 500 kHz.

Application Field

ISL6353CRTZ-T is a very useful IC especially when applied in portable electronics and automotive-grade applications. Its flexibility makes it suitable for use in different design contexts, such as communications, computing, and consumer products. In particular, this regulator is ideal for low input voltage and high current synchronous buck converters with an adjustable output voltage between 0.6V and 5.5V.

Working Principle

ISL6353CRTZ-T’s integrated synchronous buck converter uses two MOSFETs for voltage regulation. On the low-side, the MOSFET’s gate is driven by the integrated high-side driver, which provides a regulated, bipolar gate drive voltage. On the high-side, the gate driving voltage is generated through a boost converter in the IC. This enables the IC to control the duty cycle by varying the voltage at the output of the boost circuit, which is connected to the MOSFET\'s gate.This regulator employs an inner current loop to reduce the output ripple and adjust the load current. The current loop is realized through the high-side MOSFET, the low- side MOSFET and the output inductor, whose current is monitored by the IC and adjusted through the high-side gate drive voltage. The device incorporates multiple protection features and integrates an internal voltage reference to maintain a constant switching frequency. It uses level- shift technology to prevent shoot-through and implements a cycle-by-cycle current limit to reduce the risk of over-currents and short-circuits.

Conclusion

ISL6353CRTZ-T is the ideal IC for successful synchronous buck converter design projects, enabling engineers to achieve a stable output and fast response time. Its integrated gate drivers provide the convenience of a single package solution, while the included essential protection features add an extra layer of safety. This voltage regulator is especially useful in portable and automotive applications that require high currents and low input voltage.

The specific data is subject to PDF, and the above content is for reference

Part Number	Manufacturer	Price	Quantity	Description