Datasheet Analog Devices HMC860LP3ETR — Datenblatt

HMC860LP3E
v01.0811 QUAD LOW NOISE HIGH PSRR
LINEAR VOLTAGE REGULATOR Typical Applications Features The HMC860LP3E is ideal for: Ultra Low Noise:
3nV/√Hz at 10 kHz, 7nV/√Hz at 1 kHz • Test Instrumentation High Power Supply Rejection Ratio (PSRR)
80 dB at 1 kHz, 60 dB at 1 MHz • Military Radios, Radar and ECM
• Basestation Infrastructure Four Voltage Outputs:
VR1 @ 3V / 80 mA
VR2, VR3 @ 3V / 20 mA
VR4 @ 4.5V / 120 mA • Ultra Low Noise Frequency Generation
• Fractional-N Synthesizer Supply
• Mixed-Signal Circuit Supply Adjustable Outputs: 2.5V to 5.2V
Low Power-Down Current: VRx_default;
X = 1, 2, 3, 4
VREF=1.21 Resistor values in KΩ
VRx_default = 3V for VR1, VR2 & VR3
VRx_default = 4.5V for VR4 

R1× RX
VRX ≈ VREF ×  1 +
 R2 × (R1 + RX ) 


For VRx < VRx_default; …