Device Information
 
 
ISL6406 Printer Friendly Version
 
Single Synchronous Buck Pulse-Width Modulation (PWM) Controller
 
Datasheets,
Related Docs
& Simulations		DescriptionKey
Features		Parametric
Data		Application
Diagrams		Related
Devices
 
 
Ordering Information
 iBuy direct from Intersil  iBuy direct - out of stock  Request samples
 Check distributor inventory Green/Pb(Lead free) Device  Available in RoHS/Pb-Free  
Part No. Design-In
Status		 Temp. Package MSL Price
US $		 PB Free
ISL6406EVAL1 Active   Eval Board N/A Contact Us   Disti-Buy  
ISL6406EVAL2 Active   Eval Board N/A Contact Us   Disti-Buy  
ISL6406EVAL3 Active   Eval Board N/A Contact Us   Disti-Buy  
ISL6406IBZ Active Ind 16 Ld SOIC 3 1.13 PB Free Buy Direct Disti-Buy Sample
ISL6406IBZ-T Active Ind 16 Ld SOIC T+R 3 1.15 PB Free Disti-Buy  
ISL6406IRZ Active Ind 16 Ld QFN 3 1.28 PB Free Disti-Buy Sample
ISL6406IRZ-T Active Ind 16 Ld QFN T+R 3 1.32 PB Free Disti-Buy  
ISL6406IVZ Active Ind 16 Ld TSSOP 1 1.20 PB Free Out of stock Disti-Buy Sample
ISL6406IVZ-T Active Ind 16 Ld TSSOP T+R 1 1.23 PB Free Disti-Buy  
ISL6406CB InActive Comm 16 Ld SOIC 1 N/A      
ISL6406CB-T InActive Comm 16 Ld SOIC T+R 1 N/A      
ISL6406CBZ InActive Comm 16 Ld SOIC 3 N/A PB Free    
ISL6406CBZ-T InActive Comm 16 Ld SOIC T+R 3 N/A PB Free    
ISL6406CR InActive Comm 16 Ld QFN 2 N/A      
ISL6406CR-T InActive Comm 16 Ld QFN T+R 2 N/A      
ISL6406CRZ InActive Comm 16 Ld QFN 3 N/A PB Free    
ISL6406CRZ-T InActive Comm 16 Ld QFN T+R 3 N/A PB Free    
ISL6406CV InActive Comm 16 Ld TSSOP 1 N/A      
ISL6406CV-T InActive Comm 16 Ld TSSOP T+R 1 N/A      
ISL6406CVZ InActive Comm 16 Ld TSSOP 1 N/A PB Free    
ISL6406CVZ-T InActive Comm 16 Ld TSSOP T+R 1 N/A PB Free    
ISL6406IB InActive Ind 16 Ld SOIC 1 N/A      
ISL6406IB-T InActive Ind 16 Ld SOIC T+R 1 N/A      
ISL6406IR InActive Ind 16 Ld QFN 2 N/A      
ISL6406IR-T InActive Ind 16 Ld QFN T+R 2 N/A      
ISL6406IV InActive Ind 16 Ld TSSOP 1 N/A      
ISL6406IV-T InActive Ind 16 Ld TSSOP T+R 1 N/A      
ISL6406WMB InActive Comm   N/A N/A PB Free    
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 ISL6406 is an adjustable frequency, synchronous buck switching regulator optimized for generating lower voltages for the distributed DC/DC architectures. The ISL6406 offers an adjustable output voltage.

Designed to drive N-Channel MOSFETs in synchronous buck topology, the ISL6406 integrates the control, output adjustment and protection functions into a single package.

The ISL6406 provides simple, single feedback loop, voltage-mode control with fast transient response. The output voltage can be precisely regulated to as low as 0.8V. The error amplifier features a 15MHz gain-bandwidth product and 6V/μs slew rate which enables high converter bandwidth for fast transient performance.

Protection from overcurrent conditions is provided by monitoring the rDS(ON) of the upper MOSFET to inhibit PWM operation appropriately. This approach simplifies the implementation and improves efficiency by eliminating the need for a current sense resistor.

The wide programmable switching frequency range of 100kHz to 700kHz allows the use of small surface mount inductors and capacitors. The device also provides external frequency synchronization making it an ideal choice for DC/DC converter applications.

 
  Key Features
 
  • Operates from 3.3V/5V Input
  • 0.8V to VIN Output Range
    • 0.8V Internal Reference
    • ±1.5% Reference Accuracy
  • Simple Single-Loop Control Design
    • Voltage-Mode PWM Control
  • Fast Transient Response
    • High-Bandwidth Error Amplifier
  • Lossless, Programmable Overcurrent Protection
    • Uses Upper MOSFET’s rDS(ON)
  • Programmable Switching Frequency 100kHz to 700kHz
  • External Frequency Synchronization
  • Internal Soft-Start
  • QFN Package Option
    • QFN Compliant to JEDEC PUB95 MO-220 QFN - Quad Flat No Leads - Product Outline
    • QFN Near Chip-Scale Package Footprint; Improves PCB Efficiency, Thinner in Profile
  • Pb-Free (RoHS compliant)
Related Documentation
 
Datasheet(s)   Datasheet(s):
 
Evaluation Board(s)   Evaluation Board(s):
 
Technical Homepage   Technical Homepage:
 
 
  Parametric Data
VIN (min) (V)3.3
VIN (max) (V)5
VOUT (min) (V).8
VOUT (max) (V)5
IOUT (max) (A)20
VBIAS (V)3.3 to 5
IS (min) (mA)7
IS (typ) (mA)9.8
 
  Application Block Diagrams
 
 
 
Applications
 
  • 3V/5V DC/DC Converter Modules
  • Distributed DC/DC 3.3V, 2.5V and 1.8V Power Architectures for DSP, Logic, and Memory
  • Power Supplies for Microprocessors
    • PCs
    • Embedded Controllers
  • Memory Supplies
  • Personal Computer Peripherals
 
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