14 © Ericsson Microelectronics, August 2000
PKL 4000 I Series
125-200 Watt DC/DC power modules
• High efficiency 90% typ. (3.3V) at
full load
• High power density, 68 W/in3,
(3.3V at 60A)
• Patent pending Paralleling feature
• Fast dynamic response, 200 µs,
± 250 mVpeak typ.
• 1,500 Vdc isolation voltage
• Max case temperature +100°C
The PKL 4000 I series represents another one of
Ericsson’s “industry first” achievements in the
continued development of our “third generation” of
high-density, high-efficiency power modules. This
module packs 68W/in3 at 90% efficiency (3.3V at
60A) in a half-brick footprint that has been enhanced
to include two additional output pins for mother-
board connection reliability. These breakthrough
features come from using the most advanced patented
topology utilizing integrated magnetics and syn-
chronous rectification on a low-resistivity multi-
layer PCB.
This product features fast dynamic response
times and low output ripple, which are important
parameters when supplying low-voltage logics. The
PKL 4000 I series products are intended to be used in
48/60 Vdc (36-75 V dc) power systems and are also
especially suited for limited board space and high
dynamic load applications.
The PKL 4000 I series also offers over and under-
voltage protection, over-temperature protection, soft-
start, parallelling capability and is short circuit proof.
61.5 x 61.0 x 12.7 mm (2.42 x 2.4 x 0.5 inch)
VIVO/IO max PO max Article Code
36–75 Vdc 2.5 V/50 A 125 W PKL 4119 PI
36–75 Vdc 3.3 V/50 A 165 W PKL 4110 PI
36–75 Vdc 2.5 V/60 A 150 W PKL 4119A PI
36–75 Vdc 3.3 V/60 A 198 W PKL 4110A PI
