9

9 - 4

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

v01.0711

HMC976LP3E Output Noise Spectral

4.88

4.92

4.96

5.00

5.04

5.08

0

100

200

300

400

500

-5

0

5

10

15

20

25

30

35

40

45

TIME (ms)

CURRENT

VR Output

4.88

4.92

4.96

5.00

5.04

5.08

0

100

200

300

400

500

-5

0

5

10

15

20

25

30

35

40

45

TIME (ms)

CURRENT

VR Output

0.00

0.500

1.00

1.50

2.00

2.50

3.00

3.50

4.00

0.00

0.500

1.00

1.50

2.00

2.50

3.00

3.50

4.00

-50

0

50

100

150

200

250

300

350

400

450

TIME (ms)

VR Output

ENA

0.00

0.500

1.00

1.50

2.00

2.50

3.00

3.50

4.00

0.00

0.500

1.00

1.50

2.00

2.50

3.00

3.50

4.00

-0.200

0.00

0.200

0.400

0.600

0.800

TIME (s)

VR Output

ENA

10

-10

10

-9

10

-8

10

-7

10

-6

10

-5

10

1

10

2

10

3

10

4

10

5

10

6

10

7

10

8

FREQUENCY (Hz)

Commercial PSU Output

Input to regulator

HMC976LP3E Output

4.950

4.970

4.990

5.010

5.030

5.050

0

50

100

150

200

250

300

350

400

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”