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date
11/16/2022
page
1 of 6
SERIES: PQME1-M │ DESCRIPTION: DC-DC CONVERTER
FEATURES
•
•
•
•
•
•
•
•
•
•
0.75 W isolated output
regulated output
compact SMT package
single output models
continuous short circuit protection
-40~85 °C temperature range
1500 Vdc isolation
no load input current as low as 5 mA
industry standard pin-out
efficiency up to 74%
MODEL
input
voltage
output
voltage
output
current
output
power
ripple
& noise1
efficiency2
typ
(Vdc)
range
(Vdc)
(Vdc)
min
(mA)
max
(mA)
max
(W)
max
(mVp-p)
typ
(%)
PQME1-S5-S3-M
5
4.75~5.25
3.3
20
200
0.66
75
68
PQME1-S5-S5-M
5
4.75~5.25
5
15
150
0.75
75
72
PQME1-S5-S9-M
5
4.75~5.25
9
9
83
0.75
75
72
PQME1-S5-S12-M
5
4.75~5.25
12
7
62
0.75
75
73
PQME1-S5-S15-M
5
4.75~5.25
15
5
50
0.75
75
74
PQME1-S12-S5-M
12
11.4~12.6
5
15
150
0.75
75
72
PQME1-S12-S12-M
12
11.4~12.6
12
7
62
0.75
75
73
PQME1-S12-S15-M
12
11.4~12.6
15
5
50
0.75
75
74
Notes:
1. Measured at nominal input, 20 MHz bandwidth oscilloscope, with 10 µF tantalum and 1 µF ceramic capacitors on the output.
2. Measured at nominal input voltage, full load.
3. All specifications are measured at Ta=25°C, humidity < 75%, nominal input voltage, and rated output load unless otherwise specified.
PART NUMBER KEY
PQME1-S XX - S XX - M- XX
Base Number
Input Voltage
Output Voltage
cui.com
Mounting Style:
SMT
Packaging:
“blank” = Tube
TR = Tape and Reel
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CUI Inc │ SERIES: PQME1-M │ DESCRIPTION: DC-DC CONVERTER
date 11/16/2022 │ page 2 of 6
INPUT
parameter
conditions/description
min
typ
max
units
operating input voltage
5 Vdc input model
12 Vdc input model
4.75
11.4
5
12
5.25
12.6
Vdc
Vdc
234
221
215
mA
mA
mA
92
91
90
mA
mA
mA
max
units
5 Vdc input model
3.3, 5 Vdc output model
9, 12 Vdc output model
15 Vdc output models
12 Vdc input model
5 Vdc output model
12 Vdc output model
15 Vdc output model
current
filter
filter capacitor
OUTPUT
parameter
conditions/description
min
typ
maximum capacitive load4
3.3, 5 Vdc output models
9 Vdc output models
12, 15 Vdc output models
2,400
1,000
560
μF
μF
μF
±3
%
line regulation
for Vin change of 1%
±0.25
%
load regulation
from 10% to full load
3.3 Vdc output models
all other models
±3
±2
%
%
switching frequency
100% load, nominal input voltage
temperature coefficient
at full load
voltage accuracy
Note:
270
kHz
±0.02
%/°C
4. Tested at input voltage range and full load.
PROTECTIONS
parameter
conditions/description
short circuit protection
continuous, self recovery
min
typ
max
units
min
typ
max
units
SAFETY AND COMPLIANCE
parameter
conditions/description
isolation voltage
input to output for 1 minute at 1 mA
input to output for 1 second at 1 mA
1,500
3,000
Vdc
Vdc
isolation resistance
input to output at 500 Vdc
1,000
MΩ
isolation capacitance
input to output, 100 kHz / 0.1 V
safety approvals
designed to meet 62368-1: EN, BS EN
conducted emissions
CISPR32/EN55032, class B (external circuit required, see Figure 2)
radiated emissions
CISPR32/EN55032, class B (external circuit required, see Figure 2)
ESD
IEC/EN61000-4-2, air ± 8 kV; contact ± 4 kV, class B
MTBF
as per MIL-HDBK-217F, 25°C
RoHS
yes
20
3,500,000
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pF
hours
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CUI Inc │ SERIES: PQME1-M │ DESCRIPTION: DC-DC CONVERTER
date 11/16/2022 │ page 3 of 6
ENVIRONMENTAL
parameter
conditions/description
min
max
units
operating temperature
see derating curves
-40
85
°C
-55
125
°C
95
%
storage temperature
storage humidity
non-condensing
case temperature rise
3.3 Vdc output model at 25°C
all other models at 25°C
typ
30
25
DERATING CURVE
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°C
°C
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CUI Inc │ SERIES: PQME1-M │ DESCRIPTION: DC-DC CONVERTER
date 11/16/2022 │ page 4 of 6
SOLDERABILITY
parameter
conditions/description
reflow soldering
see reflow soldering profile
Maximum duration >217°C is 60 seconds.
For actual application, refer to IPC/JEDEC J-STD-020D.1
min
typ
max
units
245
°C
max
units
MECHANICAL
parameter
conditions/description
dimensions
13.20 x 8.50 x 7.25[0.520 x 0.335 x 0.285 inch]
min
case material
black flame-retardant and heat-resistant plastic (UL94V-0)
weight
typ
mm
1.4
MECHANICAL DRAWING
units: mm [inch]
tolerance: ±0.25[±0.010]
pin section tolerance: ±0.10[±0.004]
PIN CONNECTIONS
PIN
Function
1
GND
2
Vin
4
0V
5
+Vout
8
NC
NC = No connect
Recommended PCB Layout
Top View
cui.com
g
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CUI Inc │ SERIES: PQME1-M │ DESCRIPTION: DC-DC CONVERTER
date 11/16/2022 │ page 5 of 6
APPLICATION CIRCUIT
If you want to further reduce the input and output ripple, a filter capacitor may be connected to the input and output
terminals (Figure 1) provided that the capacitance is less than the maximum capacitive load of the model, otherwise startup problems may be caused if the capacitance is too large.
Figure 1
Table 1
Vin
(Vdc)
5
EMC RECOMMENDED CIRCUIT
Figure 2
Table 2
Recommended External Circuit Components
Vo (Vdc)
CY
C3
3.3, 5, 9
12, 15
--
1 nF / 2 kVdc
refer to the Cout in Table 1
C1, C2
4.7 µF / 25 V
4.7 µF / 25 V
LDM
6.8 μH
6.8 μH
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Cin
(μF)
4.7
Vo
(Vdc)
Cout
(μF)
3.3, 5
10
9, 12
2.2
15
1
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CUI Inc │ SERIES: PQME1-M │ DESCRIPTION: DC-DC CONVERTER
date 11/16/2022 │ page 6 of 6
REVISION HISTORY
rev.
description
date
1.0
initial release
05/10/2019
1.01
safeties updated in features and safety line, packaging removed
01/14/2021
1.02
model table updated
03/29/2021
1.03
product image updated
04/20/2021
1.04
derating curve and circuits updated
06/29/2021
1.05
CE removed
11/16/2022
The revision history provided is for informational purposes only and is believed to be accurate.
Headquarters
20050 SW 112th Ave.
Tualatin, OR 97062
800.275.4899
Fax 503.612.2383
cui.com
techsupport@cui.com
CUI offers a two (2) year limited warranty. Complete warranty information is listed on our website.
CUI reserves the right to make changes to the product at any time without notice. Information provided by CUI is believed to be accurate and reliable. However, no responsibility is
assumed by CUI for its use, nor for any infringements of patents or other rights of third parties which may result from its use.
CUI products are not authorized or warranted for use as critical components in equipment that requires an extremely high level of reliability. A critical component is any component of a
life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness.
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