File Name: pth12040w.pdf Rev (03): 19 Dec 2005

For the most current data and application support visit www.artesyn.com/powergroup/products.htm

DC-DC CONVERTERS

POLA Non-isolated

2

NEW Product

N

No

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s

1

The set-point voltage tolerance is affected by the tolerance and stability

1% with 100 ppm/ºC or better temperature stability.

2

This control pin has an internal pull-up to 5 V nominal. If it is left open-

circuit the module will operate when input power is applied. A small

lowleakage (<100 nA) MOSFET is recommended for control. For further

information, consult the related application note. For further information,

consult Application Note 193.

3

A 1000 µF input capacitor is required for proper operation. The capacitor

must be rated for a minimum of 300 mA rms of ripple current.

4

5

See Figures 1 and 2 for safe operating curves.

6

When the set-point voltage is adjusted higher than 3.6 V, a 10 V minimum

input voltage is recommended.

7

A small low-leakage (<100 nA) MOSFET is recommended to control this

pin. The opencircuit voltage is less than 1 Vdc.

8

These are the default voltages. The y may be adjusted using the ‘UVLO

Prog’ control input. Consult Application Note No. 193 for further

information.

9

To order Pb-free (RoHS compatible) surface-mount parts replace the

mounting option ‘S’ with ‘Z’, e.g. PTH12040WAZ. To order Pb-free

(RoHS compatible) through-hole parts replace the mounting option ‘H’

with ‘D’, e.g. PTH12040WAD.

local Artesyn representative or use the on-line model number search tool at

http://www.artesyn.com/powergroup/products.htm to find a suitable

alternative.

OUTPUT

INPUT

OUTPUT

OUTPUT

OUTPUT

EFFICIENCY

REGULATION

MODEL

POWER

VOLTAGE

VOLTAGE

CURRENT

CURRENT

(MAX.)

LINE

LOAD

NUMBER

(9.10)

(MAX.)

(MIN.)

(MAX.)

275 W

8-14 Vdc

0.8-5.5 Vdc

0 A

50 A

96%

±5 mV

±5 mV

PTH12040W

PTH12040

12 Vin single output

PTH12040W AS

Part Number System with Options

Product Family

Point of Load Alliance

Compatible

Output Current

04 = 50 A

Input Voltage

12 = 12 V

Mechanical Package

Always 0

Output Voltage Code

W = Wide

Pin Option

A = Through-Hole Std. Pin Length (0.140”)

A = Surface-Mount Tin/Lead Solder Ball

D = Horizontal Through-Hole (Matte Sn)

H = Horizontal Through-Hole (Sn/Pb)

S = Surface-Mount (63/37 Sn/Pb

pin solder material)

Z = Surface-Mount (96.5/3.0/0.5 Sn/Ag/Cu

pin solder material)

The ultra-wide output voltage trim range offers major advantages to users who

select the PTH12040W. It is no longer necessary to purchase a variety of

modules in order to cover different output voltages. The output voltage can be

trimmed in a range of 0.8 Vdc to 5.5 Vdc. When the PTH12040W converter

leaves the factory the output has been adjusted to the default voltage of 0.8 V.

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12

20

04

40

0W

W S

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OUTPUT VOLTAGE

EFFICIENCY

Vo = 5.0 V

96%

Vo = 3.3 V

95%

Vo = 2.5 V

93%

Vo = 2.0 V

92%

Vo = 1.8 V

91%

Vo = 1.5 V

90%

Vo = 1.2 V

88%

Vo = 1.0 V

86%

Vo = 0.8 V

82%