General Description
   The HMC860LP3E is a BiCMOS ultra low noise quad-output voltage regulator. It features a low noise band-gap reference externally decoupled for best in-close noise performance. High Power Supply Rejection Ratio (PSRR) in the 0.1 MHz to 10 MHz range provides excellent rejection of preceding switching regulator noise. The four voltage outputs are ideal for frequency generation subsystems including Hittite’s broad line of PLLs with Integrated VCOs.

FEATUREs
   Ultra Low Noise:
      3nV/√Hz at 10 kHz, 7nV/√Hz at 1 kHz
   High Power Supply Rejection Ratio (PSRR)
      80 dB at 1 kHz, 60 dB at 1 MHz
   Four Voltage Outputs:
      VR1 @ 3V / 75 mA
      VR2, VR3 @ 3V / 15 mA
      VR4 @ 4.5V / 100 mA
   Adjustable Outputs: 2.5V to 5.2V
   Low Power-Down Current: <1 μA
   16 Lead 3x3 mm SMT Package: 9mm2

Typical Applications
The HMC860LP3E is ideal for:
• Test Instrumentation
• Military Radios, Radar and ECM
• Basestation Infrastructure
• Ultra Low Noise Frequency Generation
• Fractional-N Synthesizer Supply
• Mixed-Signal Circuit Supply