2

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

Parameter

Conditions

Min

Typ

Max

Units

Reference Voltage VREF

Vdd = 5.5V; REF cannot source/sink

external current

1.17

V

400

mA

Output Noise Spectral Density

10 Hz

100 Hz

1 kHz

10 kHz

100 kHz

Vdd = 5.5V; VR = 5.0V

Maximum Load Current

4000

120

6

3

3

nV/rtHz

Integrated Output Noise 100 Hz to 100 kHz

1.5

µVrms

Load Regulation, VR

Vdd = 5.5V; VR=5.0V

0.01

% / mA

PSRR

1 kHz

10 kHz

100 kHz

1 MHz

10 MHz

50 MHz

Vdd = 5.5V; VR=5.0V

Maximum load current

-70

-65

-45

-35

-30

-20

dB

Output Voltage Variation vs. Package

Base Temperature

25°C to 85°C

-40°C to 25°C

Vdd = 5.5V; VR=5.0V

Maximum load current

0.005

0.005

0.01

0.01

% / °C

% / °C

Ven = Vdd = 5.5V;

Maximum Load Current

1.1

1.5

mA

Power Down Current

Vdd = 5.5V; EN = Low; Output is float-

ing (high - impedance) in Power-Down

mode

1

µA

Start-Up Transient Time

0 to 90% of final voltage

200

ms

Enable Input EN High Level

Vdd>=VEN

2

Vdd

V

Enable Input EN Low Level

Vdd>=VEN

0

0.8

V

To guarantee stability, noise and PSRR

4.7

µF

Thermal Protection Threshold Junction

Temperature [4]

Junction Temperature Rising

115

130

°C

Thermal Protection Hysteresis

10

°C

[1] The regulator does not include short-circuit protection circuitry. The outputs will withstand short-circuit conditions for a duration <10s. The

thermal protection is not intended to be used as a short circuit protection

[2] HMC976LP3E was designed to work with low ESR ceramic capacitors connected to pin 4 VRX.

[3] See HMC976LP3E 5.0V User Application Schematic herein

[4] See figures 14,15, and 16

Information furnished by Analog Devices is believed to be accurate and reliable. However, no

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