HMC8413

Data Sheet

Rev. 0 | Page 20 of 21

BIASING THE HMC8413 USING THE LT3470A

The HMC8413 can be powered by using a well regulated power

source. The LT3470A micropower, step-down, dc-to-dc converter

regulator is designed for a wide input voltage range while

maintaining a high efficiency and high power supply modulation

ratio (PSMR). Using the LT3470A as a power supply for the

HMC8413 results in high PSMR, and dynamic performance is

achieved without degradation. Figure 75 shows the application

circuit for the HMC8413 using the LT3470A regulator.

HMC8413

LT3470A

1

GND

GND

C1

0.1µF

C4

5.7V TO 40V

0.1µF

C5

0.1µF

C2

0.1µF

L1

0.14µH

L2

0.9µH

3

2

6

4

5

GND

GND

C3

10pF

R1

15Ω

200kΩ

1%

604kΩ

1%

R2

787Ω

22µF

BOOST

SW

SHDN

OFF ON

BIAS

FB

GND

22µF

22µF

Figure 75. Application Circuit for the HMC8413 Using the LT3470A Regulator