Input:

35-75V

Output:

24V

Current:

25A

Package:

Half-brick

Input:

35-75V

Output:

24V

Current:

25A

Package:

Half-brick

Product # PQ60240HZx25

Phone 1-888-567-9596

www.synqor.com

Doc.# 005-0005987 Rev. D

03/04/14

Page 9

Input:

35-75V

Output:

24V

Current:

25A

Package:

Half-brick

0

5

10

15

20

25

0

5

10

15

20

25

30

35

Load Current (A)

35Vin

48Vin

75Vin

Current-Limit

Shutdown

source

impedance

DC-DC

Converter

Input

Terminal

Ripple

Current

Input

Reflected

Ripple

Current

Output

Voltage

Ripple

ceramic

capacitor capacitor

electrolytic

electrolytic

capacitor

i

S

i

C

Figure 13: Test Set-up Diagram showing measurement points for Input Terminal

Ripple Current (Figure 14), Input Reflected Ripple Current (Figure 15) and

Output Voltage Ripple (Figure 16).

Figure 14: Input Terminal Ripple Current, ic, at full rated output current and

nominal input voltage with 4.7µH source impedance and 220µF electrolytic

capacitor (Ch.1 500mA/div, 2µs/div). (See Figure 13).

Figure 15: Input Reflected Ripple Current, is, through a 4.7 µH source inductor

at nominal input voltage and rated load current (10 mA/div, 2µs/div). (See

Figure 13).

Figure 16: Output Ripple voltage at nominal input voltage and rated load

current (200 mV/div, 2µs/div). Load capacitance: 1µF ceramic and 15µF

tantalum output capacitors. Bandwidth: 20 MHz. (See Figure 13).

Figure 17: Output I-V Characteristics (output voltage vs. load current) showing

typical current limit curves and converter shutdown points.

Figure 18: Output Short Load Current (20A/div) as a function of time when the

converter attempts to turn on into a 1 mΩ short circuit (20ms/div).

Technical Figures