6

For price, delivery and to place orders: Hittite Microwave Corporation, 2 Elizabeth Drive, Chelmsford, MA 01824

978-250-3343 tel • 978-250-3373 fax • Order On-line at www.hittite.com

Application Support: apps@hittite.com

HMC976LP3E

400mA LOW NOISE, HIGH PSRR

LINEAR VOLTAGE REGULATOR

v02.1112

Pin Number

Function

Description

Interface Schematic

1

EN

Enable Input, TTL Logic Level. The VR and VRX outputs

are floating (high impedance) when EN = Low.

2

RD

Resistive feedback for VR,

see “Output Voltage Adjust” section.

3

REF

Reference voltage (bandgap) output. Cannot be used to

source/sink current to/from external circuits

4

VRX

For Decoupling Capacitor

Cannot be used to source current to external circuits

11

VR

Regulator Output VR 400mA

5

HV

Sets VR to 5V output when grounded

6 - 10, 12 - 14,16

N/C

These pins can be left unconnected or connected to GND

with no change in performance

15

VDD

Unregulated power supply input 5.5V max

Package Base

GND

Must contact PCB ground

Table 5. Pin Descriptions

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responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other

rights of third parties that may result from its use. Specifications subject to change without notice. No

license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

Trademarks and registered trademarks are the property of their respective owners.

For price, delivery, and to place orders: Analog Devices, Inc.,

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106

Phone: 781-329-4700 • Order online at www.analog.com

Application Support: Phone: 1-800-ANALOG-D