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Wide Input, 500mA Output Synchronous Buck Regulator
 
 
Intersil ISL85415 is a 500mA Synchronous buck regulator with an input range of 3V to 36V. It provides an easy to use, high efficiency low BOM count solution for a variety of applications.

The ISL85415 integrates both high-side and low-side NMOS FET's and features a PFM mode for improved efficiency at light loads. This feature can be disabled if forced PWM mode is desired. The part switches at a default frequency of 500kHz but may also be programmed using an external resistor from 300kHz to 2MHz. The ISL85415 has the ability to utilize internal or external compensation. By integrating both NMOS devices and providing internal configuration options, minimal external components are required, reducing BOM count and complexity of design.

With the wide VIN range and reduced BOM the part provides an easy to implement design solution for a variety of applications while giving superior performance. It will provide a very robust design for high voltage Industrial applications as well as an efficient solution for battery powered applications.

The part is available in a small Pb-free 4mmx3mm DFN plastic package with an operation temperature range of -40°C to +125°C.

 
Features
Wide input voltage range 3V to 36V
Synchronous Operation for high efficiency
No compensation required
Integrated High-side and Low-side NMOS devices
Selectable PFM or forced PWM mode at light loads
Continuous output current up to 500mA
Internal or external soft-start
Minimal external components required
Power-good and enable functions available
Internal fixed (500kHz) or adjustable Switching frequency 300kHz to 2MHz
 
Applications
Industrial control
Medical devices
Portable instrumentation
Distributed Power supplies
Cloud Infrastructure
 
Ordering Info.
Part # VIN min(V) VIN max(V) VOUT min(V) VOUT max(V) IOUT max(A) Package Datasheet  
ISL85415FRZ-T 3 36 0.6 34 5 DFN-12 Buy Now
 
Block Diagram
 
 
   
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