PKM 4000A
Advanced Specification
25-30A DC/ DC Power Modules
48 V Input; 1.5V, 1.8V, 2.5V, and 3.3V Outputs
• High Efficiency 90% Typ at full load
• Fast Dynamic Response, 100us,
+/- 150 mVpeak Typ
• Low Output Ripple, 60mV
p-p
Typ
• High power density, 56.9 W/in
3
• Wide input voltage range (36-75V)
• Industry standard footprint & pin-out
• 1,500 Vdc isolation voltage
• Max case temperature +100
o
C
• UL 1950/UL
C
1950 Recognized
• Basic Isolation Rating per EN60 950
(December 2000) verified by Underwriters
Laboratory
• TUV to EN60 950 Type Approved
The PKM 4000A series of DC/DC power modules
represents another Ericsson "industry first" achieve-
ment in the continued development of our "third
generation" of high density, high efficiency DC/DC
power modules in an industry standard quarter
brick package with unparalleled performance.
These breakthrough features have been achieved by
using the most advanced patented topology, ultiliz-
ing integrated magnetics and synchronous rectifica-
tion on a low resistivity multilayer PCB.
The product features fast dynamic response times
and low output ripple, which are important param-
eters when supplying low voltage logics. The PKM
4000A series is especially suited for limited board
space and high dynamic load applications such as
demanding microprocessors.
Ericsson's PKM 4000A Power Modules address the
converging "New Telecoms" market by specifying
the input voltage range in accordance with ETSI
specifications. The PKM 4000A series also offers
over-voltage protection, under voltage protection,
over temperature protection, soft-start, and is short
circuit proof.
These modules are manufactured using highly auto-
mated manufacturing lines with a world-class quali-
ty commitment and a five-year warranty. Ericsson
Inc., Microelectronics has been an ISO 9001 certi-
fied supplier since 1991.
For a complete product program please reference the back cover.
E
General
Connections
Pin
1
2
3
4
5
6
7
8
Designation
-
IN
ON/OFF
+ IN
-
OUT
-
SEN
Trim
+ SEN
+ OUT
Function
Negative Input
Remote control (primary).
To turn on and turn off the output.
Positive Input.
Negative Output.
Negative Remote Sense
Output Voltage Adjust
Positive Remote Sense
positive Output
Input
T
C
< T
C max
Characteristics
V
I
V
Ioff
V
Ion
C
I
I
Iac
I
I max
Input voltage range
1)
Turn-off input voltage Ramping from higher
voltage
Turn-on input voltage
Input capacitance
Reflected ripple
current
Maximum input
current
5 Hz to 20 MHz
V
I
= V
Imin,
V
I
= 53V
PKM 4418A PIOA
PKM 4518A PI
PKM 4719A PI
PKM 4810A PI
I
O
=0, V
I
= 53 V
V
I
=53 V, RC open
2.6
0.4
Ramping from lower
voltage
Conditions
min
36
31
33
34
1.5
10
36
typ
max
75
Unit
Vdc
Vdc
Vdc
µF
mA
p-p
Weight
Maximum 55 g
1.6
1.8
2.6
3.8
4.6
0.6
A
A
A
A
W
W
Case
Aluminum baseplate with metal standoffs.
P
Ii
P
RC
Input idling power
Input stand-by
power
(turned off with RC)
Pins
Pin material: Brass
Pin plating: Tin/Lead over Nickel.
VTRIM Maximum input
6
Vdc
Note:
1) The input voltage range 36...75 V meets the requirements in the European
Telecom Standard prETS 300 132-2 for Normal input voltage range in 48 V and
60 V DC power systems, – 40.5...–57.0 V and –50.0...–72.0 V respectively.
Mechanical Data
2.28
[57,9] OVERALL LENGTH
0.21
[5,33]
0.21
[5,33]
0.43
[10,92]
-IN
-OUT
1.86
[47,27]
2.00
[50,8]
0.21
[5,3]
PIN
EXT.
0.50
[12,7]
OVERALL
HEIGHT
0.150
[3,81]
0.300
[7,62]
0.300
[7,62]
1.450
[36,83]
OVERALL
WIDTH
ON/OFF
-SEN
BOTTOM VIEW
TRIM
+SEN
0.600
[15,24]
+IN
0.450
[11,43] 0.600
[15,24]
+OUT
1.03
[26,16]
2.00
[50,8]
0.140
[3,56]
M3 X [0,5] MOUNTING INSERTS
TYPICAL 4 PLACES
MAX. SCREW TORQUE: 3.9 IN-LBS.[0,44 N-M]
0.040 [1,02] DIA. PLATED
BRASS PINS
TYPICAL 6 PLACES
Dimensions: inches [mm]
Tolerances: .xx ± 0.02 [ ,x ± ,5]
.xxx ±0.010 [,xx ± ,25]
0.060 [1,57] DIA. PLATED
BRASS PINS
TYPICAL 2 PLACES
2
EN/LZT 108 5164 R2B © Ericsson Inc., Microelectronics, August 2001
PKM 4418A PIOA (45W)
T
C
= –40…+100°C, V
I
= 36 ...75V unless otherwise specified.
Output
Characteristics
Output voltage initial
setting and accuracy
Output adjust range
V
O
Output voltage
tolerance band
Line regulation
Load regulation
V
t r
t
t r
Load transient
voltage deviation
Load transient
recovery time
Start-up time
Output current
Max output power
Current limit threshold
Short circuit current
Output ripple & noise
Supply voltage
rejection (ac)
Over voltage protection
I
O
=I
O max, f < 20 MHz
f < 1kHz
-53
At V
O
= V
Onom
V
O
= 0.96 V
Onom
@ T
C
<100
o
C
31
36
38
70
From V
I
connection to V
O
= 0.9
×
V
Onom
0
Conditions
T
C
=+25 °C, V
I
= 53 V, I
O
=I
Omax
I
O
=I
Omax
I
O
=0 to I
O max
Output
min
1.48
1.2
1.43
3
3
+/-150
typ
1.5
max
1.52
1.66
1.58
10
10
Unit
V
V
V
mV
mV
mV
V
Oi
I
O
=I
O max
V
I
= 53V, I
O
=0 to I
O max
,
Load step = 0.25 x I
Omax
di/dt = 1A/us
100
µs
t
s
I
O
P
Omax
I
lim
I
sc
V
Oac
SVR
25
40
30
45
39
40
150
ms
A
W
A
A
mV
p-p
dB
OVP
V
I
= 50 V
2.2
2.5
2.8
V
Miscellaneous
Characteristics
η
P
d
f
S
Efficiency
Power dissapation
Switching frequency
Conditions
I
O
= I
Omax
, V
I
= 53V, T
C
= +25
o
C
I
O
= I
Omax
, V
I
= 53V, T
C
= +25
o
C
I
O
= 0...1.0 x I
Omax
min
typ
89
5.6
200
max
Unit
%
W
kHz
Absolute Maximum Ratings
Characteristics
T
C
T
S
V
I
V
ISO
V
RC
I
2
t
Maximum Operating Case Temperature
Storage temperature
Input voltage
Isolation voltage
Remote control voltage
Inrush transient
min
– 40
– 40
– 0.5
1,500
12
1
max
+100
+125
+80
Unit
°C
°C
V dc
V dc
Vdc
A
2
s
Thermal Data
PKM 4418A PIOA Efficiency (typ)
94%
92%
90%
88%
Efficiency (%)
86%
84%
82%
80%
78%
76%
74%
0
5
10
15
20
25
30
Output Current (A)
36V
55V
72V
Stress in excess of Absolute Maximum Ratings may cause permanent
damage. Absolute Maximum Ratings, sometimes referred to as "no
destruction limits," are normally tested with one parameter at a time
exceeding the limits of output data or electrical characteristics. If exposed
to stress above these limits, function and performance may degrade in an
unspecified manner.
EN/LZT 108 5164 R2B © Ericsson Inc., Microelectronics, August 2001
3
PKM 4518A PI (54W)
T
C
= –40…+100°C, V
I
= 36 ...75V unless otherwise specified.
Output
Characteristics
Output voltage initial
setting and accuracy
Output adjust range
V
O
Output voltage
tolerance band
Line regulation
Load regulation
V
t r
t
t r
Load transient
voltage deviation
Load transient
recovery time
Start-up time
Output current
Max output power
Current limit threshold
Short circuit current
Output ripple & noise
Supply voltage
rejection (ac)
Over voltage protection
I
O
=I
O max, f < 20 MHz
f < 1kHz
-53
At V
O
= V
Onom
V
O
= 0.96 V
Onom
@ T
C
<100
o
C
31
36
36
70
From V
I
connection to V
O
= 0.9
×
V
Onom
0
Conditions
T
C
=+25 °C, V
I
= 53 V, I
O
=I
Omax
I
O
=I
Omax
I
O
=0 to I
O max
Output
min
1.77
1.44
1.71
3
3
+/-150
typ
1.8
max
1.83
2.0
1.89
10
10
Unit
V
V
V
mV
mV
mV
V
Oi
I
O
=I
O max
V
I
= 53V, I
O
=0 to I
O max
,
Load step = 0.25 x I
Omax
di/dt = 1A/us
100
µs
t
s
I
O
P
Omax
I
lim
I
sc
V
Oac
SVR
25
40
30
54
39
40
150
ms
A
W
A
A
mV
p-p
dB
OVP
V
I
= 50 V
2.5
2.8
3.0
V
Miscellaneous
Characteristics
η
P
d
f
S
Efficiency
Power dissapation
Switching frequency
Conditions
I
O
= I
Omax
, V
I
= 53V, T
C
= +25
o
C
I
O
= I
Omax
, V
I
= 53V, T
C
= +25
o
C
I
O
= 0...1.0 x I
Omax
min
typ
89
6.7
200
max
Unit
%
W
kHz
Absolute Maximum Ratings
Characteristics
T
C
T
S
V
I
V
ISO
V
RC
I
2
t
Maximum Operating Case Temperature
Storage temperature
Input voltage
Isolation voltage
Remote control voltage
Inrush transient
min
– 40
– 40
– 0.5
1,500
12
1
max
+100
+125
+80
Unit
°C
°C
V dc
Thermal Data
PKM 4518A PI Efficiency (typ)
94%
92%
90%
88%
86%
84%
82%
80%
78%
76%
74%
0
Efficiency (%)
V dc
Vdc
A
2
s
36V
55V
Stress in excess of Absolute Maximum Ratings may cause permanent
damage. Absolute Maximum Ratings, sometimes referred to as "no
destruction limits," are normally tested with one parameter at a time
exceeding the limits of output data or electrical characteristics. If exposed
to stress above these limits, function and performance may degrade in an
unspecified manner.
72V
5
10
15
20
25
30
Output Current (A)
4
EN/LZT 108 5164 R2B © Ericsson Inc., Microelectronics, August 2001
PKM 4719A PI (75W)
T
C
= –40…+100°C, V
I
= 36 ...75V unless otherwise specified.
Output
Characteristics
Output voltage initial
setting and accuracy
Output adjust range
V
O
Output voltage
tolerance band
Line regulation
Load regulation
V
t r
t
t r
Load transient
voltage deviation
Load transient
recovery time
Start-up time
Output current
Max output power
Current limit threshold
Short circuit current
Output ripple & noise
Supply voltage
rejection (ac)
Over voltage protection
I
O
=I
O max, f < 20 MHz
f < 1kHz
-53
At V
O
= V
Onom
V
O
= 0.96 V
Onom
@ T
C
<100
o
C
31
36
36
60
From V
I
connection to V
O
= 0.9
×
V
Onom
0
Conditions
T
C
=+25 °C, V
I
= 53 V, I
O
=I
Omax
I
O
=I
Omax
I
O
=0 to I
O max
Output
min
2.45
2.0
2.4
3
3
+/-150
typ
2.5
max
2.55
2.75
2.6
10
10
Unit
V
V
V
mV
mV
mV
V
Oi
I
O
=I
O max
V
I
= 53V, I
O
=0 to I
O max
,
Load step = 0.25 x I
Omax
di/dt = 1A/us
100
µs
t
s
I
O
P
Omax
I
lim
I
sc
V
Oac
SVR
25
40
30
75
39
40
100
ms
A
W
A
A
mV
p-p
dB
OVP
V
I
= 50 V
3.2
3.7
4.2
V
Miscellaneous
Characteristics
η
P
d
f
S
Efficiency
Power dissapation
Switching frequency
Conditions
I
O
= I
Omax
, V
I
= 53V, T
C
= +25
o
C
I
O
= I
Omax
, V
I
= 53V, T
C
= +25
o
C
I
O
= 0...1.0 x I
Omax
min
typ
90
8.3
150
max
Unit
%
W
kHz
Absolute Maximum Ratings
Characteristics
T
C
T
S
V
I
V
ISO
V
RC
I
2
t
Maximum Operating Case Temperature
Storage temperature
Input voltage
Isolation voltage
Remote control voltage
Inrush transient
min
– 40
– 40
– 0.5
1,500
12
1
max
+100
+125
+80
Unit
°C
°C
V dc
V dc
Vdc
A
2
s
Thermal Data
PKM 4719A PI Efficiency (typ)
94%
92%
90%
88%
86%
84%
82%
80%
78%
76%
74%
0
Efficiency (%)
36V
55V
72V
5
10
15
20
25
30
Stress in excess of Absolute Maximum Ratings may cause permanent
damage. Absolute Maximum Ratings, sometimes referred to as "no
destruction limits," are normally tested with one parameter at a time
exceeding the limits of output data or electrical characteristics. If exposed
to stress above these limits, function and performance may degrade in an
unspecified manner.
EN/LZT 108 5164 R2B © Ericsson Inc., Microelectronics, August 2001
Output Current (A)
5
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