PMC 4318T WS
Contents
Product Program . . . . . . . . . . . . . . . . . . . . . . 2
Mechanical Data . . . . . . . . . . . . . . . . . . . . . . 3
Connections . . . . . . . . . . . . . . . . . . . . . . . . . 3
Absolute Maximum Ratings . . . . . . . . . . . . . 4
Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Product Qualification Specification . . . . . . . . 5
Safety Specification . . . . . . . . . . . . . . . . . . . 6
Adjusted to 1.0 V out - Data . . . . . . . . . . . . . 7
Adjusted to 1.2 V out - Data . . . . . . . . . . . . 10
Adjusted to 1.5 V out - Data . . . . . . . . . . . . 13
Adjusted to 1.8 V out - Data . . . . . . . . . . . . 16
Adjusted to 2.5 V out - Data . . . . . . . . . . . . 19
Adjusted to 3.3 V out - Data . . . . . . . . . . . . 22
EMC Specification . . . . . . . . . . . . . . . . . . . 25
.
Operating Information . . . . . . . . . . . . . . . . . 25
Thermal Considerations . . . . . . . . . . . . . . . 28
Soldering Information . . . . . . . . . . . . . . . . . 29
Delivery Package Information . . . . . . . . . . . 30
Reliability . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Compatibility with RoHS requirements . . . . 30
Sales Offices and Contact Information . . . . 31
DC/DC regulator
Input 3.0 - 5.5 V
Output 10 A
Key Features
• Wide input, 3.0-5.5 Vdc
• Programmable output, 0.75 - 3.6 Vdc
• Under voltage protection
• Short circuit protection
• Remote sense
• Remote On/Off
• Design for Environment (DfE)
• European Commission Directive 2002/95/EC
(RoHs) compliant
The PMC series of surface mount DC/DC regulators
(POL) are intended to be used as local distributed
power sources in distributed power architecture
level 4. The high efficiency and high reliability of the
PMC series makes them particularly suited for the
communications equipment of today and tomorrow.
These products are manufactured using the most
advanced technologies and materials to comply
with environmental requirements.
Designed to meet high reliability requirements of sys-
tems manufacturers, the PMC responds to world-class
specifications.
Ericsson Power Modules is an ISO 9001/14001
certified supplier.
E
Datasheet
Absolute Maximum Ratings
Characteristics
T
ref
T
S
V
I
Operating Reference Temperature, see pg. 27
Storage temperature
Input voltage
min
-45
-55
-0.3
typ
max
+115
+125
+5.5
Unit
˚C
˚C
Vdc
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.
Input
T
ref
= -30 ... +90 ˚C, V
I
= 3.0...5.5 V unless otherwise specified
Typ values specified at: T
ref
= +25 ˚C, V
I
nom, I
o
max = 10A
Characteristics
V
I
V
Ioff
V
Ion
C
I
P
Ii
P
RC
V
I
ac
Input voltage range
Turn-off input voltage
Conditions
min
3.0
typ
max
5.5
Unit
Vdc
Vdc
Ramp from higher voltage, V
out
set to 1.0-2.5 V
Ramp from higher voltage, V
out
set to 3.3 V
Ramp from lower voltage, V
out
set to 1.0-2.5 V
Ramp from lower voltage, V
out
set to 3.3 V
2.6
3.5
2.7
3.6
20
Turn-on input voltage
Input capacitance
Input idling power
Input stand-by power (RC active)
Input ripple
1)
Vdc
µF
570
7.5
mW
mW
mV
I
o
= 0 A, V
I
= 5 V
Non operation, V
I
= 5 V
20 Hz ... 5 MHz, I
o
max, V
I
= 5 V
300
1) Measured with 2 x 22 µF ceramic capacitors
Fundamental Circuit Diagram
+IN
+OUT
+SENSE
GND
GND
PWM
controller
Vadj
Error
amplifier
Ref
RC
RC
Block
GND
GND
PMC 4318T WS Datasheet
EN/LZT 146 056 R4A © Ericsson Power Modules, March 2007
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