HMC976LP3E v02.1112 400mA LOW NOISE, HIGH PSRRLINEAR VOLTAGE REGULATORTable 5. Pin Descriptions Pin Number Function Description Interface Schematic Enable Input, TTL Logic Level. The VR and VRX outputs 1 EN are floating (high impedance) when EN = Low. Resistive feedback for VR, 2 RD see “Output Voltage Adjust” section. Reference voltage (bandgap) output. Cannot be used to 3 REF source/sink current to/from external circuits T For Decoupling Capacitor M 4 VRX Cannot be used to source current to external circuits G - S 11 VR Regulator Output VR 400mA IN N IO 5 HV Sets VR to 5V output when grounded IT D N These pins can be left unconnected or connected to GND O 6 - 10, 12 - 14,16 N/C with no change in performance R C E 15 VDD Unregulated power supply input 5.5V max W O P Package Base GND Must contact PCB ground 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 6 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