HMC976LP3E v02.1112 400mA LOW NOISE, HIGH PSRRLINEAR VOLTAGE REGULATORFigure 7. Output Load SwitchedFigure 8. Output Load SwitchedOFF to ON [1]ON to OFF [1] 5.08 500 5.08 500 5.04 400 5.04 VR Output 400 CURRENT CURRENT (V) 5.00 300 5.00 300 (V) (mA) (mA) OUTPUT 4.96 200 4.96 200 VR Output OUTPUT 4.92 100 4.92 100 CURRENT CURRENT 4.88 0 4.88 0 -5 0 5 10 15 20 25 30 35 40 45 -5 0 5 10 15 20 25 30 35 40 45 TIME (ms) TIME (ms) Figure 9. Supply Turn-On Transient [2]Figure 10. Supply Turn-Off Transient [2] 4.00 4.00 4.00 4.00 ENA 3.50 3.50 3.50 3.50 3.00 3.00 ENA 3.00 3.00 2.50 2.50 2.50 2.50 (V) ENA ( (V) ENA ( 2.00 2.00 2.00 2.00 VR Output V V ) T OUTPUT 1.50 1.50 OUTPUT 1.50 1.50 M 1.00 1.00 1.00 VR Output 1.00 0.500 0.500 0.500 0.500 0.00 0.00 0.00 0.00 -50 0 50 100 150 200 250 300 350 400 450 -0.200 0.00 0.200 0.400 0.600 0.800 G - S TIME (s) TIME (ms) IN N Figure 11. HMC976LP3E Output Noise IO Figure 12. Vout vs. Load current [1]Spectral Density vs. Commercial PSU [1] IT 10-5 5.050 D Commercial PSU Output N 10-6 Input to regulator 5.030 O tHz) /r V 10-7 5.010 ) (V R C 10-8 VOUT 4.990 E NOISE VOLTAGE ( W 10-9 4.970 HMC976LP3E Output O 4.950 P 10-10 0 50 100 150 200 250 300 350 400 101 102 103 104 105 106 107 108 FREQUENCY (Hz) LOAD CURRENT mA [1] VDD=5.5V, 400mA Load ““HMC976LP3E 5V User Application Schematic”. [2] VDD=5.0V, 400mA Load “HMC976LP3E 3.3V User Application Schematic” InfoFro ma r p tion rfiucre nis, d he e d lbiv y e An raly a og n Ded t viceo p s is la be clie o eved rtd o e b re sa: H ccur iattti e te M and re ilicarbloew . a Ho ve C wever, onro For price, delivery, and to place orders: Analog Devices, Inc., responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other poration, 2 Elizabeth Drive, Chelmsford, MA 01824 One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106 978-250-3343 tel • 978-250-3373 fax • O rights of third parties that may result from its use. Specifications subject to change without notice. No rd P e h r O one n : 7-lin 81- e a 329-t w 47 w 0 w.h 0 • O it rd teite r o .nc li o n m license is granted by implication or otherwise under any patent or patent rights of Analog Devices. e at www.analog.com 4 Application S Trademarks and registered trademarks are the property of their respective owners. upport: apps@ A h p i p tliti c te ati .ocom n Support: Phone: 1-800-ANALOG-D