Input:

Output:

Current:

Package:

35-75 V

12 V

Quarter-brick

Product # PQ60120QEA25

Phone 1-888-567-9596

www.synqor.com

Doc.# 005-2QE612J Rev. B

03/24/09

Page 7

Technical Specification

Figure 7: Turn-on transient at full load (resistive load) (10 ms/div).

Ch 1: Vout (5V/div)

Ch 2: ON/OFF input (5V/div)

Figure 8: Turn-on transient at zero load (10 ms/div).

Ch 1: Vout (5V/div)

Ch 2: ON/OFF input (5V/div)

Figure 9: Output voltage response to step-change in load current (50%-75%-

50% of Iout(max); dI/dt = 0.1A/µs). Load cap: 1uF ceramic and 10uF tanta-

lum capacitors. Top trace: Vout (500mV/div), Bottom trace: Iout (10A/div).

Figure 10: Output voltage response to step-change in load current (50%-

75%-50% of Iout(max): dI/dt = 5A/µs). Load cap: 470µF, 15 mW ESR

tantalum capacitor. Top trace: Vout (500mV/div), Bottom trace: Iout (10A/

Figure 12: Input Terminal Ripple Current, ic, at full rated output

Figure 11: Test set-up diagram showing measurement points for Input

Terminal Ripple Current (Figure 12), Input Reflected Ripple Current

(Figure 13) and Output Voltage Ripple (Figure 14).

source

impedance

DC/DC

Converter

Figure 13

Figure 12

Figure 14

ceramic

capacitor

10 µF,

100mW ESR

tantalum

capacitor

100 µF,

0.2W ESR

electrolytic

capacitor