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UPM SERIES - NON-ISOLATED, 40 WATT
DESCRIPTION
FEATURES
UPM non-isolated DC/DC buck converters deliver high • High Power Converter
power and excellent transient response in a compact • High Efficiency
1.0” x 2.0” x 0.475” package. The UPM can provide up • Excellent Transient
to 40 Watts of output power at 12A output current, and Response
output voltages from 1.2 to 3.3V. Featuring open-
• Sense Pins
frame, 100% surface-mount construction and high
efficiency, the UPM excels in difficult thermal
environments.
• Surface-Mount
Construction
• Voltage Trim
• Low Profile
• Water Washable
TECHNICAL SPECIFICATIONS
Voltage Range
3.3 VDC Nominal
5.0 VDC Nominal
Input
Output
Setpoint Accuracy
Line Regulation Vin Min. - Vin Max., Iout Rated
Load Regulation Iout Min.- Iout Max., Vin Nom.
Ripple and Noise, DC - 200 MHz
Remote Sense Headroom
Current Limit Protection Type
Current Limit Threshold Range, % of Iout Rated
Short Circuit Protection Type
Vout Ramp Up Rate, Minimum
General
Switching Frequency
Temperature Coefficient
Baseplate Operating Temperature
Storage Range
Internal Input Capacitance
Recommended External Capacitance
Input
Output
Load Capacitance Compensation
Humidity Max., Non-Condensing
Vibration, 3 Axes, 5 Min Each
MTBF(Bellcore TR-NWT-000332)
Safety
Weight (approx.)
3.0 - 3.6 VDC
4.5 - 5.5 VDC
±1%
1% Vout
1% Vout
50 mV Pk-Pk
0.25 V
Hiccup
130%
Latching
0.5V/ms
200 kHz
50 ppm/°C
0 to +100°C
-40 to +100°C
500 µF Max.
200 µF/A Iout
200 µF/A Iout
User Selectable
95%
5 g, 10 - 55 Hz
2.9 x 106 hrs
UL, CSA, EN60950
0.9 oz
C-96
94
92
90
88
86
84
82
80
78
10
Efficiency vs. Load (5V Input)
EFF. (4.5V)
EFF. (5V)
EFF. (5.5V)
20 30 40 50 60 70 80 90 100
LOAD %
Notes
MTBF predictions may vary slightly from model to model.
Specifications typically at 25°C, normal line, and full load, unless otherwise
stated.
Soldering Conditions: I/O pins, 260°C, ten seconds; fully compatible with
commercial wave-soldering equipment.
Safety: Agency approvals may vary from model to model. Please consult factory
for specific model information.
Units are water-washable and fully compatible with commercial spray or
immersion post wave-solder washing equipment.

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UPM SERIES - NON-ISOLATED, 40 WATT
MODELS - (See the last page of this file for options.)
Vin
(Volts)
Vin Range
(Volts)
Iin Max.*
(Amps)
Vout
(Volts)
3.3 3.0 - 3.6 5.2
3.3 3.0 - 3.6 6.3
3.3 3.0 - 3.6 7.5
3.3 3.0 - 3.6 8.5
5
4.5 - 5.5
4.1
5
4.5 - 5.5
5.1
5
4.5 - 5.5
6.0
5
4.5 - 5.5
6.8
5
4.5 - 5.5
7.9
5
4.5 - 5.5
10.0
1.2
1.5
1.8
2.1
1.2
1.5
1.8
2.1
2.5
3.3
Denotes advanced product release. Consult factory for product availability.
* Maximum input current at minimum input voltage, maximum rated output power.
** At nominal Vin, rated output.
MECHANICAL DRAWING
Iout Rated
(Amps)
12
12
12
12
12
12
12
12
12
12
Efficiency
Typ. **
78%
79%
81%
82%
78%
79%
81%
82%
84%
88%
Model
UPM301.2
UPM301.5
UPM301.8
UPM302.1
UPM501.2
UPM501.5
UPM501.8
UPM502.1
UPM502.5
UPM503.3
2.00"
(50.8mm)
0.025" SQ.
(0.6mm)
0.750"(19.0mm)
1.00"
(25.4mm)
0
1
BOTTOM VIEW
2
5
6
7
8
9
10
3
4
0.625"(15.9mm)
0.525"(13.3mm)
0.425"(10.8mm)
0.325"(8.3mm)
0.225"(5.7mm)
0.125"(3.2mm)
-0.125"(-3.2mm)
-0.125" 0
(-3.2mm)
1.475" 1.750"
(37.5mm) (44.5mm)
DIA 0.060"
(1.5mm)
0.12"
(3.0mm)
0.475"
(12.1mm)
Thermal Impedance
Natural Convection
100 LFM
200 LFM
300 LFM
400 LFM
9.4 °C/W
6.6 °C/W
4.3 °C/W
3.2 °C/W
2.7 °C/W
Note:
Thermal impedance data is dependent on
many environmental factors. The exact
thermal performance should be validated for
specific application.
Pin Function
1 -Vin
2 +Vin
3 -Vout
4 +Vout
5 -Vsense
6 Ground
7 Loop Comp.
8 No Conn.
9 Trim
10 +Vsense
C-97
Tolerances
Inches:
.XX ± 0.020
.XXX ± 0.010
(Millimeters)
.X ± 0.5
.XX ± 0.25
Pin:
± 0.002
± 0.05
(Dimensions as listed unless otherwise
specified.)

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OPTIONS
When ordering equipment options, use the following suffix information. Select the option(s) that
you prefer and add them to the model number. Example ordering options are located below the
options table.
OPTION
Negative Logic
Lucent Compatible Trim
Terminal Strip
Trim
Enable
Trim and Enable
Current Share
Headerless
SUFFIX
APPLICABLE SERIES
N HAS, HBD, HBS, HES, LES, QBS,
QES, TES, TQD
T HAS, HBD, HBS, HES, QBS, QES
TS XWS, XWD, XWT
1 IAS, LES
2 IAD, IAS, LES, SMS
3 IAS, LES
4 SMS
Y Encapsulated EWS, IWS, OWS
REMARKS
TTL “Low” Turns Module ON
TTL “High” Turns Module OFF
PIN LENGTH AND HEATSINK
OPTIONS
0.110” (2.8mm) Pin Length
0.150” (3.8mm) Pin Length
0.24” (6.1mm) Horizontal Heatsink
0.24” (6.1mm) Vertical Heatsink
0.45” (11.4mm) Horizontal
Heatsink
0.45” (11.4mm) Vertical Heatsink
0.95” (24.1mm) Horizontal
Heatsink
0.95” (24.1mm) Vertical Heatsink
Standard Pin Length is 0.180”
(4.6mm)
8 All Units (Except SMS)
9 All Units (Except SMS)
1H All Units (Except DIP, SIP, and SM Includes Thermal Pad
Packages)
1V All Units (Except DIP, SIP, and SM Includes Thermal Pad
Packages)
2H All Units (Except DIP, SIP, and SM Includes Thermal Pad
Packages)
2V All Units (Except DIP, SIP, and SM Includes Thermal Pad
Packages)
3H All Units (Except DIP, SIP, and SM Includes Thermal Pad
Packages)
3V All Units (Except DIP, SIP, and SM Includes Thermal Pad
Packages)
Example Options:HBS050ZG-ANT3V = HBS050ZG-A with negative logic, Lucent compatible trim, and
0.95” vertical heatsink.
LES015YJ-3N = LES015YJ with optional trim and enable, negative logic.
QBS066ZG-AT8 = QBS066ZG-A with Lucent compatible trim and 0.110” pin length.
NUCLEAR AND MEDICAL APPLICATIONS Power-One products are not authorized for use as critical components in life support systems,
equipment used in hazardous environments, or nuclear control systems without the express written consent of the President of Power-One, Inc.
TECHNICAL REVISIONS The appearance of products, including safety agency certifications pictured on labels, may change depending on the
date manufactured. Specifications are subject to change without notice.
C105