Device Information
 
 
ISL8104 Printer Friendly Version
 
Synchronous Buck Pulse-Width Modulator (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
ISL8104CBZ Active Comm 14 Ld SOIC 2 1.65 PB Free Buy Direct Disti-Buy Sample
ISL8104CBZ-T Active Comm 14 Ld SOIC T+R 2 1.65 PB Free Disti-Buy  
ISL8104CRZ Active Comm 16 Ld QFN 2 1.39 PB Free Disti-Buy Sample
ISL8104CRZ-T Active Comm 16 Ld QFN T+R 2 1.39 PB Free Disti-Buy  
ISL8104EVAL1Z Active   Eval Board N/A Contact Us PB Free Disti-Buy  
ISL8104IBZ Active Ind 14 Ld SOIC 2 1.35 PB Free Buy Direct Disti-Buy Sample
ISL8104IBZ-T Active Ind 14 Ld SOIC T+R 2 1.35 PB Free Disti-Buy  
ISL8104IRZ Active Ind 16 Ld QFN 2 1.41 PB Free Out of stock Disti-Buy Sample
ISL8104IRZ-T Active Ind 16 Ld QFN T+R 2 1.41 PB Free Disti-Buy  
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 ISL8104 is a 8V to 14V synchronous PWM controller with integrated MOSFET drivers. The controller features the ability to safely start-up into prebiased output loads and provides protection against overcurrent fault events. Overcurrent protection is implemented using top-side MOSFET rDS(ON) sensing, eliminating the need for a current sensing resistor.

The ISL8104 employs voltage-mode control with dual-edge modulation to achieve fast transient response. The operating frequency is adjustable from 50kHz to 1.5MHz with full (0% to 100%) PWM duty cycle capability. The error amplifier features a 15MHz (typ) gain-bandwidth product and 6V/μs slew rate enabling high converter bandwidth.

The output voltage of the converter can be regulated to as low as 0.597V with a tolerance of ±1.0% over the commercial temperature range (0°C to +70°C), and ±1.5% over industrial temperature range (-40°C to +85°C). Provided in the QFN package, a SS pin and REFIN pin enable supply sequencing and voltage tracking functionality.

 
  Key Features
 
  • +8V ±5% to +14V ±10% Bias Voltage Range
    • 1.5V to 15.4V Input Voltage Range
  • 0.597V Internal Reference Voltage
    • ±1.0% Over the Commercial Temperature Range
    • ±1.5% Over the Industrial Temperature Range
  • Voltage-Mode PWM Control with Dual-Edge Modulation
  • 14V High Speed N-Channel MOSFET Gate Drivers
    • 2.0A Source/3A Sink at 14V Bottom-Side Gate Drive
    • 1.25A Source/2A Sink at 14V Top-Side Gate Drive
  • Fast Transient Response
    • 15MHz (typ) Gain-Bandwidth Error Amplifier with 6V/μs slew rate
    • Full 0% to 100% Duty Cycle Support
  • Programmable Operating Frequency from 50kHz to 1.5MHz
  • Lossless Programmable Overcurrent Protection
    • Top-Side MOSFET's rDS(ON) Sensing
    • ~120ns Blanking Time
  • Sourcing and Sinking Current Capability
  • Support for Start-Up into Prebiased Loads
  • Soft-Start Done and an External Reference Pin for Tracking Applications are Available in the QFN Package
  • Pb-free available (RoHS compliant)
Related Documentation
 
Datasheet(s)   Datasheet(s):
 
Evaluation Board(s)   Evaluation Board(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
 
  • Test and Measurement Instruments
  • Distributed DC/DC Power Architecture
  • Industrial Applications
  • Telecom/Datacom Applications
 
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