Diodes Incorporated
U QFN4040 20

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ZLPM8014 (Not Recommended for new design)

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The ZLPM8014 is a power management and control solution for satellite set-top boxes (STBs). Based on an efficient boost converter the ZLPM8014 provides a power supply within the range of 11V to 21V as well as all the control signals required by a single port satellite Low Noise Block (LNB). The ZLPM8014 includes an accurate 22kHz tone generator to provide DiSEqC™ control words or continuous tone for band switching control. To provide a reliable DiSEqC 2.0 solution, the IC includes a DiSEqC detector with unwanted signal rejection. Controlled by an I2C™ compatible interface and with the minimal external components, the ZLPM8014 provides a high performance, cost efficient solution.


  • High System Efficiency with Energy Saving Standby Mode
  • Efficient Boost Converter and LDO Provide an Accurate Adjustable Power Supply for LNBs
  • High Accuracy Output Overload and Temperature
    • Provides a Protected Output of up to 750mA (continuous)
    • Programmable Current Limit for System Flexibility
  • Optional Current Boost Mode. 150% of Imax for 65ms
  • Designed for Stability with Low Power LNBs
  • Provides Standard Voltage / Tone and DiSEqC Control Signals and has a Vpol Voltage Boost for SMW Applications
    • Internal Tone Generator for DiSEqC Control and Traditional Band Switching
    • Tone Maintains Shape Across all Load Conditions
  • Internal Reliable Tone Detector for DiSEqC 2.0 Systems
  • Controlled by I2C interface and Additional Logic Control for Tone
  • Built in Multiple Diagnostics and Protection for IC and LNB Protection
  • Minimal External Components for a Simple, Reliable and Cost Effective Solution
  • Totally Lead-Free & Fully RoHS Compliant 
  • Halogen and Antimony Free. “Green” Device 


  • Single Tuner Satellite Set-Top Boxes
    • High Current LNBs
    • Stability with Minimal Current LNBs
  • Satellite PC Cards
  • TVs with Integrated Satellite Tuners
  • Hybrid Set-Top Boxes
  • Suitable for Digital and Analog Satellite Systems

Product Specifications

Product Parameters

Iboost Yes
IC Controls (Enable) I2C
IC Controls (Logic) No
LNB Control (13/18V) Yes
LNB Control (22kHz / DiSEqC™ 1.x) Yes
LNB Control (DiSEqC™ 2) Yes
LNB Output (LNB Voltage Range) 12.75 to 21
LNB Output (Max LNB Current) 750
Protection (LNB Detect) Yes
Protection (Over Current) Yes
Protection (Over Temperature) 150ºC

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