Device Information
 
 
ISL6535 Printer Friendly Version
 
Synchronous Buck Pulse-Width Modulator (PWM) Controller
 
Datasheets,
Related Docs
& Simulations		DescriptionKey
Features		Parametric
Data		Application
Diagrams		Related
Devices
 
 
Ordering Information
Green/Pb(Lead free) Device  Available in RoHS/Pb-Free
 Buy direct from Intersil  Check distributor inventory  Request samples
Part No. Design-In
Status		 Temp. Package MSL Price
US $		 PB Free
ISL6535CBZ Active Comm 14 Ld SOIC 2 1.39 PB Free iBuy Disti-Buy Sample
ISL6535CBZ-T Active Comm 14 Ld SOIC T+R 2 1.44 PB Free iBuy Disti-Buy  
ISL6535CRZ Active Automotive 16 Ld QFN 2 1.52 PB Free iBuy Disti-Buy Sample
ISL6535CRZ-T Active Comm 16 Ld QFN T+R 2 1.57 PB Free iBuy Disti-Buy  
ISL6535IBZ Active Ind 14 Ld SOIC 2 1.60 PB Free iBuy Disti-Buy Sample
ISL6535IBZ-T Active Ind 14 Ld SOIC T+R 2 1.65 PB Free iBuy Disti-Buy  
ISL6535IRZ Active Ind 16 Ld QFN 2 1.73 PB Free iBuy Disti-Buy Sample
ISL6535IRZ-T Active Ind 16 Ld QFN T+R 2 1.79 PB Free iBuy Disti-Buy  
ISL6535EVAL1 Coming
Soon		   Eval Board N/A Contact Us  iBuy    
ISL6535EVAL1Z Coming
Soon		   Eval Board N/A Contact Us PB Free iBuy    
ISL6535EVAL2 Coming
Soon		   Eval Board N/A Contact Us  iBuy    
ISL6535EVAL2Z Coming
Soon		   Eval Board N/A Contact Us PB Free iBuy    
ISL6535CB InActive Comm 14 Ld SOIC   Contact Us  iBuy    
ISL6535CB-T InActive Comm 14 Ld SOIC T+R   Contact Us  iBuy    
The price listed is the manufacturer's suggested retail price for quantities of 1K units. However, prices in today's market are fluid and may change without notice.
MSL = Moisture Sensitivity Level - per IPC/JEDEC J-STD-020
SMD = Standard Microcircuit Drawing
 
  Description

The ISL6535 is a high performance synchronous controller for demanding DC/DC converter applications. It provides overcurrent fault protection and is designed to safely startup into prebiased output loads.

The output voltage of the converter can be precisely regulated to as low as 0.597V, with a maximum tolerance of ±1% over the commercial temperature range, and ±1.5% over the industrial temperature range.

The ISL6535 provides simple, single feedback loop, voltagemode control with fast transient response. It includes a trianglewave oscillator that is adjustable from below 50kHz to over 1.5MHz. Full (0% to 100%) PWM duty cycle support is provided.

The error amplifier features a 15MHz gain-bandwidth product and 6V/μs slew rate which enables high converter bandwidth for fast transient performance.

The ISL6535's overcurrent protection monitors the current by using the rDS(ON) of the upper MOSFET, which eliminates the need for a current sensing resistor.

 
  Key Features
 
  • Operates from +12V Input
  • Excellent Output Voltage Regulation
    • 0.597V Internal Reference
    • ±1% Over the Commercial Temperature Range
    • ±1.5% Over the Industrial Temperature Range
  • Simple Single-Loop Control Design
    • Voltage-Mode PWM Control
  • Fast Transient Response
    • High-Bandwidth Error Amplifier
    • Full 0% to 100% Duty Ratio
    • Leading and Falling Edge Modulation
  • Small Converter Size
    • Constant Frequency Operation
    • Oscillator Programmable from 50kHz to Over 1.5MHz
  • 12V High Speed MOSFET Gate Drivers
    • 2.0A Source/3A Sink at 12V Low Side Gate Drive
    • 1.25A Source/2A Sink at 12V High Side Gate Drive
    • Drives Two N-Channel MOSFETs
  • Overcurrent Fault Monitor
    • High-Side MOSFET’s rDS(ON) Sensing
    • Reduced ~120ns Blanking Time
  • Converter can Source and Sink Current
  • Soft-Start Done and an External Reference Pin for Tracking Applications are Available in the QFN Package
  • Pin Compatible with ISL6522
  • Supports Start-Up into Prebiased Loads
  • Pb-free available (RoHS compliant)
Related Documentation
 
Datasheet(s)   Datasheet(s):
 
i-Sim   i-Sim:
 
 
  Parametric Data
VIN (min) (V)1.2
VIN (max) (V)12
VOUT (min) (V).6
VOUT (max) (V)5
IOUT (max) (A)30
VBIAS (V)8 to 12
IS (typ) (mA)51
 
  Application Block Diagrams
 
 
 
Applications
 
  • Power Supply for some Pentium®, PowerPC™, as well as Graphic CPUs
  • High-Power 12V Input DC/DC Regulators
  • Low-Voltage Distributed Power Supplies
 
  Related DevicesParametric Table   Parametric Table
 
 HIP6006 Buck and Synchronous-Rectifier Pulse-Width Modulator (PWM) Controller 
 HIP6012 Buck and Synchronous-Rectifier Pulse-Width Modulator (PWM) Controller 
 ISL6268 High-Performance Notebook PWM Controller 
 ISL6269 High-Performance Notebook PWM Controller with Bias Regulator and Audio-Frequency Clamp 
 ISL6269A High-Performance Notebook PWM Controller 
 ISL6269B High-Performance Notebook PWM Controller with Audio-Frequency Clamp 
 ISL6341 5V or 12V Single Synchronous Buck Pulse-Width Modulation (PWM) Controller 
 ISL6341A 5V or 12V Single Synchronous Buck Pulse-Width Modulation (PWM) Controller 
 ISL6341B 5V or 12V Single Synchronous Buck Pulse-Width Modulation (PWM) Controller 
 ISL6406 Single Synchronous Buck Pulse-Width Modulation (PWM) Controller 
 ISL6420 Advanced Single Synchronous Buck Pulse-Width Modulation (PWM) Controller 
 ISL6420A PWM Controller with Wide VIN, Start-Up into Pre-Bias Load 
 ISL6439 Single Sync Buck PWM Controller for Broadband Gateway Applications 
 ISL6439A Single Sync Buck PWM Controller for Broadband Gateway Applications 
 ISL6520 Single Synchronous Buck Pulse-Width Modulation (PWM) Controller 
 ISL6520A Single Synchronous Buck Pulse-Width Modulation (PWM) controller ISL6520A 
 ISL6520B Single Synchronous Buck Pulse-Width Modulation (PWM) Controller 
 ISL6522 Buck and Synchronous Rectifier Pulse-Width Modulator (PWM) Controller 
 ISL6522A Buck and Synchronous Rectifier Pulse-Width Modulator (PWM) Controller 
 ISL6522B Buck and Synchronous Rectifier Pulse-Width Modulator (PWM) Controller 
 ISL6525 Buck and Synchronous-Rectifier Pulse-Width Modulator (PWM) Controller 
 ISL6526 Single Synchronous Buck Pulse-Width Modulation (PWM) Controller 
 ISL6526A Single Synchronous Buck Pulse-Width Modulation (PWM) Controller 
 ISL6527 Single Synchronous Buck Pulse-Width Modulation (PWM) Controller 
 ISL6527A Single Synchronous Buck Pulse-Width Modulation (PWM) Controller 
 ISL6540 Single-Phase Buck PWM Controller with Integrated High Speed MOSFET Driver and Pre-Biased Load Capability 
 ISL6540A Single-Phase Buck PWM Controller with Integrated High Speed MOSFET Driver and Pre-Biased Load Capability 
 ISL6545 5V or 12V Single Synchronous Buck Pulse-Width Modulation (PWM) Controller 
 ISL6545A 5V or 12V Single Synchronous Buck Pulse-Width Modulation (PWM) Controller 
 ISL8104 Synchronous Buck Pulse-Width Modulator (PWM) Controller 
 ISL8105 1V to 12V Single-Phase Synchronous Buck Converter PWM Controller with Integrated MOSFET Gate Drivers 
 ISL8105A 1V to 12V Single-Phase Synchronous Buck Converter PWM Controller with Integrated MOSFET Gate Drivers 
 ISL8105B +5V or +12V Single-Phase Synchronous Buck Converter PWM Controller with Integrated MOSFET Gate Drivers, Extended Soft-Start Time 
 ISL8106 Wide VIN, 7V to 25V, Single-Phase PWM Controller with Integrated MOSFET Drivers 
 ISL8107 Single-Phase Pulse-Width Modulation (PWM) Controller with Wide (9V-75V) VIN Range 
 ISL8118 3.3V to 20V Single-Phase PWM Controller with Integrated 2A/4A MOSFET Drivers 

 
About Us | Careers | Contact Us | Investors | Legal | Privacy | Site Map | Subscribe | Intranet

©2007. All rights reserved.