WPMDL110xxx1S / 17301xx78
MagI
3
C
Power Module
FDSM
– Fixed Step Down Regulator Module
7 - 28V / 1A / 3.3 or 5V Output
DESCRIPTION
The FDSM series of the MagI C Power Module family is a
fixed output voltage, fully integrated dc/dc power supply.
The module integrates the switching power stage, control
circuitry, inductor and capacitors all in one package.
The module requires no external components for
operation reducing design effort and complexity to a
minimum.
The FDSM ensures fast time to market and low
development costs.
It is pin compatible with the common 78xx linear regulator
series. The high efficiency reduces the power dissipation
and in many cases a heatsink and assembly parts are
unnecessary.
12V to 3.3V conversion achieves up to 87% efficiency.
12V to 5V conversion achieves up to 91% efficiency.
The standard THT package allows for easy assembly.
3
FEATURES
•
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•
•
•
•
•
•
•
•
•
•
•
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Peak efficiency up to 93%
Current capability up to 1A
Input voltage range: 7 to 28V
Output voltage: 3.3 or 5V
Continuous output power: 3.3 or 5W
Integrated capacitors and inductor
Low output voltage ripple:
typ.15mV (3.3V) and 25mV (5Vout) at 1A load
Output voltage accuracy: 3.5% typ.
Fixed 300 kHz switching frequency
Current mode control
Pulse skipping for high efficiency at light loads
Internal soft-start
Thermal shutdown
Short circuit protection
Cycle by cycle current limit
Output over-voltage protection
-40°C to 85°C ambient operating temperature range
RoHS & REACH compliant
UL94V-0 package material
EN55022 Class B compliant
TYPICAL APPLICATIONS
•
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Point-of-Load from 18V, 15V, 12V, 9V rail
Replacement for linear regulators
Interface and microcontroller supply
General purpose
TYPICAL CIRCUIT DIAGRAM
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© November 2015
Würth Elektronik eiSos GmbH & Co. KG – Data Sheet Rev. 1.0
1/12
WPMDL110xxx1S / 17301xx78
MagI
3
C
Power Module
FDSM
– Fixed Step Down Regulator Module
PACKAGE
1
2
3
PIN DESCRIPTION
SYMBOL
V
IN
GND
V
OUT
PIN
1
2
3
TYPE
Power
Power
Power
Input voltage.
Ground, reference for V
IN
and V
OUT
Output voltage
DESCRIPTION
ORDERING INFORMATION
ORDER CODE
173010578
173010378
PART DESCRIPTION
WPMDL1100501S
WPMDL1100331S
SPECIFICATIONS
1.0A / 5V
version
1.0A / 3.3V version
PACKAGE
SIP-3
SIP-3
PACKAGING UNIT
Tube with 42 pieces
Tube with 42 pieces
PIN COMPATIBLE FAMILY MEMBERS
ORDER CODE
173950578
173950378
PART DESCRIPTION
WPMDL9500501S
WPMDL9500501S
SPECIFICATIONS
0.5A / 5V
version
0.5A / 3.3V version
PACKAGE
SIP-3
SIP-3
PACKAGING UNIT
Tube with 42 pieces
Tube with 42 pieces
PACKAGE SPECIFICATIONS
Weight
2.0g
Flammability
Meets UL 94 V-O
MTBF
MIL-HDBK 217F +25°C: 3875·10
3
h
SALES INFORMATION
SALES CONTACTS
Würth Elektronik eiSos GmbH & Co. KG
EMC & Inductive Solutions
Max-Eyth-Str. 1
74638 Waldenburg
Germany
Tel. +49 (0) 7942 945 0
www.we-online.com
powermodules@we-online.com
We-online.com
© November 2015
Würth Elektronik eiSos GmbH & Co. KG – Data Sheet Rev. 1.0
2/12
WPMDL110xxx1S / 17301xx78
MagI
3
C
Power Module
FDSM
– Fixed Step Down Regulator Module
ABSOLUTE MAXIMUM RATINGS
Caution:
Exceeding the listed absolute maximum ratings may affect the device negatively and may cause permanent damage.
LIMITS
MIN
V
IN
V
OUT
T
storage
Input voltage
Output voltage
Assembled, non-operating storage temperature
(1)
SYMBOL
PARAMETER
MAX
(1)
30
V
IN
125
UNIT
V
V
°C
-0.3
-0.6
-55
OPERATING CONDITIONS
Operating conditions are conditions under which operation of the device is intended to be functional. All values are
referenced to GND.
MIN and MAX limits are valid for the recommended ambient temperature range of
-40°C to 85°C.
Typical values represents
statistically the utmost probability at following conditions: V
IN
= 12V, V
OUT
= 3.3V (173010378), V
OUT
= 5V (173010578), I
OUT
= 1A unless otherwise noted.
SYMBOL
V
IN
V
IN
T
A
PARAMETER
Input voltage (173010378)
Input voltage (173010578)
Ambient temperature range
MIN
7
8
-40
(1)
TYP
-
-
-
(2)
MAX
28
28
85
(1)
UNIT
V
V
°C
(3)
THERMAL SPECIFICATIONS
SYMBOL
Ө
JA
T
SD
Thermal shutdown
PARAMETER
Junction-to-ambient thermal resistance
(4)
TYP
77
(2)
UNIT
°C/W
°C
165
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© November 2015
Würth Elektronik eiSos GmbH & Co. KG – Data Sheet Rev. 1.0
3/12
WPMDL110xxx1S / 17301xx78
MagI
3
C
Power Module
FDSM
– Fixed Step Down Regulator Module
ELECTRICAL SPECIFICATIONS
MIN and MAX limits are valid for the recommended ambient temperature range of
-40°C to 85°C.
Typical values represents
statistically the utmost probability at following conditions: V
IN
= 12V, V
OUT
= 3.3V (173010378), V
OUT
= 5V (173010578), I
OUT
= 1A unless otherwise noted.
SYMBOL
I
OCP
PARAMETER
Over current protection
TEST CONDITIONS
Output current
V
IN
= 12V
Accuracy
Over V
IN
range, T
A
= 25°C, I
OUT
= 1A
12V
in
, T
A
= 25°C, 10% to 100%
Load
T
A
= 25°C, I
OUT
= 0A
10µF ceramic, 20MHz BW
Switching frequency
f
SW
Switching frequency
V
IN
= 12V
Input current
I
Q
I
IN
Input quiescent current
No load input current
Operating, non-switching
Operating, switching
-
-
75
1.5
-
-
µA
mA
-
300
-
kHz
(5)
MIN
(1)
TYP
(2)
MAX
-
(1)
UNIT
A
2.3
3.5
Line regulation
Load regulation
V
OUT
Total output voltage variation
Output voltage ripple 5V
OUT
Output voltage ripple 3.3V
OUT
-
-
-
-
-
-
-
±3
25
15
±1
±1.5
±5
-
-
%
%
%
mV
pp
mV
pp
NOTES
(1)
Min and Max limits are 100% production tested at 25°C. Limits over the operating temperature range are guaranteed
through correlation using Statistical Quality Control (SQC) methods.
(2)
Typical numbers are valid at 25°C ambient temperature and represent statistically the utmost probability assuming the
Gaussian distribution.
(3)
Depending on load current, see derating diagram
(4)
Measured without heatsink, no air flow
(5)
The industry standard for comparison of the output voltage ripple between switching regulators or modules requires a
10µF ceramic (sometimes additional 1µF ceramic in parallel) at the point of load where the voltage measurement is
done using an oscilloscope with its probe and probe jack for low voltage/high frequency (low impedance) measurement.
The oscilloscopes bandwidth is limited at 20MHz.
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© November 2015
Würth Elektronik eiSos GmbH & Co. KG – Data Sheet Rev. 1.0
4/12
WPMDL110xxx1S / 17301xx78
MagI
3
C
Power Module
FDSM
– Fixed Step Down Regulator Module
TYPICAL PERFORMANCE CURVES
If not otherwise specified, the following conditions apply: T
AMB
= 25°C.
RADIATED EMISSIONS EN55022 (CISPR-22) CLASS B COMPLIANT
Measured without external filters at 3m antenna distance
Measured without external filters at 3m antenna distance
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© November 2015
Radiated Emissions dB [µV/m]
Würth Elektronik eiSos GmbH & Co. KG – Data Sheet Rev. 1.0
5/12
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