Product # NQ40x40ETC15

Phone 1-888-567-9596

www.synqor.com

Doc.# 005-NS4040W Rev. C

03/06/09

Page 5

Input:

Outputs:

Current:

Package:

9 - 40 V

0 - 40 V

15 A

Eighth-brick

Technical Specification

source

impedance

See Fig. 5

See Fig. 6

100µF

100mWESR

tantalum

capacitor

C*

*Seevaluesforrecommendedexternalinputcapacitance.

Inductor optional as needed.

Dc-dc

Converter

60

65

70

75

80

85

90

95

100

0

3

6

9

12

15

Load Current (A)

36Vin 24Vout

24Vin 12Vout

36Vin 12Vout

24Vin 36Vout

12Vin 24Vout

12Vin 36Vout

Figure 1: Efficiency at nominal output voltage vs. load current for

0

5

10

15

20

25

0

3

6

9

12

15

Load Current (A)

36Vin 24Vout

24Vin 12Vout

36Vin 12Vout

24Vin 36Vout

12Vin 24Vout

12Vin 36Vout

Figure 2: Power dissipation at nominal output voltage vs. load current

0

2

4

6

8

10

12

14

16

5

10

15

20

25

30

35

40

Input Voltage (V)

Tb=80 C; Vout=12 V

Tb=100 C; Vout=12 V

Tb=80 C; Vout=24 V

Tb=100 C; Vout=24 V

Tb=80 C; Vout=36 V

Tb=100 C; Vout=36 V

Figure 4: Test set-up diagram showing measurement points for Input

Terminal Ripple Current (Figure 5), and Output Voltage Ripple (Figure 6).

Figure 6: Output Voltage Ripple with 24 V input and rated load cur-

rent (50 mV/div). Zero load capacitance. Bandwidth: 20 MHz. See

Figure 4.

24 Vout

36 Vout

12 Vout

Figure 5: Input Terminal Ripple Current with 24 V input and rated load

current (500 mA/div). Bandwidth: 20 MHz. See Figure 4.

24 Vout

36 Vout

12 Vout

Figure 3: Maximum output power derating curve with a controlled

baseplate temperature of 80ºC and 100ºC.