JoulWatt

JW4001

LNB Power Supply

Topology: Boost
Input Voltage (min.): 8.00 V
Input Voltage (max.): 14.00 V
Output 1: 18.00 V / 0.800 A

Description

JW4001 is a monolithic linear and switching voltage regulator, specially designed to provide efficient, low noise power to Satellite receiver’s RF LNB (Low Noise Block) converter via coaxial cable.The JW4001 integrates a current mode boost converter followed by a tracking linear regulator. A high switching frequency is chosen to minimizethe size of passive filtering components, further assisting in cost reduction. The tracking linear regulator protects the output against overload orshort circuit.The JW4001 provides a number of features described in DiSEqC. For DiSEqCcommunications, the 22 KHz tone signal can be generated using internal or external clock, all the way down to no-load.JW4001 is available in TSSOP14 and DFN10 packages

Characteristics

  • DiSEqC 1.x Compatibility
  • Up to 550mA Continuous Output Current
  • 8V to 14V Input Voltage
  • Tracking Switch-Mode Power Converter for
  • Lowest Power Dissipation, High Efficiency
  • Boost Converter with Internal Switch
  • Low Noise Linear Regulator Output
  • Adjustable Cable Voltage Drop
  • Compensation, Dynamic Control or Fixed 1V
  • Internal Generated or External Input 22KHz Tone
  • POK Indicator
  • Output Short Circuit Robust
  • Input Voltage UVLO Protection
  • Over Temperature Protection

Products

  Order Code SPEC Product series L
(µH)
IR
(A)
ISAT
(A)
RDC typ.
(mΩ)
RDC max.
(mΩ)
fres
(MHz)
Montageart Samples
74437346100 PDF WE-LHMI SMT Power Inductor 10 3 7.3 75 85 15 SMT