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Phone: 978-250-3343

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Application Support: Phone: 978-250-3343 or apps@hittite.com

9

HMC1060LP3E

v00.1211

QUAD LOW NOISE HIGH PSRR

LINEAR VOLTAGE REGULATOR

Application Schematic

in order to achieve the typical noise performance specified in the electrical Specifications table, a 4.7 µF decoupling

capacitor between reF and gnd pins (C1), and 100 nF capacitors connected between output pins Vrx (x=1,2,3,4)

and respective rdx pins (C2, C3, C4 and C5) are required. if noise performance is not critical for a particular output,

the 100 nF capacitor can be omitted for the corresponding regulator output. in that case, noise spectral density will

typically increase by a factor of 20 at 10 kHz. the 4.7 µF reF capacitor causes approximately 40 ms typical turn-on

start-up time. the effects of reducing the reF capacitor on regulator noise performance and regulator turn-on time

are shown in Figure 2 and external enable Pin & Power Up timing section respectively.