UQQ Series
Wide Input Range Single Output DC/DC Converters
Typical unit
For applications requiring wide range input, improved electrical
and thermal perfomance consider MPS's new UQQ Series “Quarter-
Brick” DC/DC Converters. They measure just .45 x 2.30 x 0.43 inches
(36.8 x 58.4 x 0.92mm) and fit the industry-standard footprint.
PRODUCT OVERVIEW
From an 9-36V or 8-75V input, UQQ’s deliver outputs
of 3.3V, 5V,2V,5V, or 24V. They employ an inter-
leaved, synchronous-rectifier topology that exploits
00% of their duty cycle. They simultaneously achieve
ultra-high efficiency (to 9%), tight line/load regula-
tion, low noise, and quick step response.
A state of the art, single-board, open-frame
design with reduced component count, high efficiency,
low-on-resistance FET’s, and planar magnetics
embedded in heavy-copper pc boards all contribute to
impressive thermal derating.
The UQQ’s feature set includes high isolation, input
pi filters, input undervoltage shutdown, output overvolt-
age protection, current limiting, short-circuit protection
and thermal shutdown. The standard footprint carries
on/off control (positive or negative polarity), output trim
(+0/–20%) and output sense functions.
All UQQ quarter-bricks are designed to meet the
BASIC-insulation requirements of UL/EN/IEC60950-
and they will carry the CE mark. Safety certifications,
EMC compliance testing and qualification testing
(including HALT) are currently in progress. Contact
MPS for latest updates.
FEATURES
n
compliant
RoHS
n
Standard quarter-brick package/pinout in
through-hole version
n
cost; Low profile, 0.43”(0.92mm)
Low
n
9-36V or 8-75V wide range inputs
n
Output current: 4 to 25 Amps
n
Output voltages: 3.3, 5, 2, 5 or 24V
n
Interleaved synchronous-rectifier topology
n
Ultra high efficiency
n
No output reverse conduction
n
Outstanding thermal performance
n
On/off control, trim & sense functions
n
isolated, up to 2250Vdc (BASIC)
Fully
n
Output overvoltage protection
n
I/O protected; Thermal shutdown
Fully
n
UL/EN/IEC60950- safety approvals
n
Designed for RoHS compliance
SIMPLIFIED SCHEMATIC
Typical topology is shown.
For full details go to
www.murata-ps.com/rohs
www.murata-ps.com
Technical enquiries
email: sales@murata-ps.com, tel:
+ 508 339 3000
MDC_UQQ_A03
Page of 7
UQQ Series
Wide Input Range Single Output DC/DC Converters
Performance Specifications and Ordering Guide
➀
PERFORMANCE SPECIFICATIONS AND ORDERING GUIDE
Output
Root Model
UQQ-3.3/25-Q12
UQQ-3.3/25-Q48
UQQ-5/17-Q12
UQQ-5/20-Q48
UQQ-12/8-Q12
UQQ-12/8-Q48
UQQ-15/7-Q12
UQQ-24/4-Q12
V
OUT
(V)
3.3
3.3
5
5
2
2
5
24
I
OUT
(A)
25
25
7
20
8
8
7
4
Power
(Watts)
82.5
82.5
85
00
96
96
05
96
R/N (mVp-p)
Typ.
50
50
40
40
40
95
40
25
Max.
80
00
75
75
75
50
75
70
Line
±0.05%
±0.05%
±0.05%
±0.05%
±0.05%
±0.05%
±0.05%
±0.05%
Regulation
Load
±0.075%
±0.2%
±0.06%
±0.%
±0.05%
±0.%
±0.%
±0.075%
V
IN
Nom.
(Volts)
2
48
2
48
2
48
2
2
Range
(Volts)
9-36
8-75
9-36
8-75
9-36
8-75
9-36
0-36
Input
I
IN
, no load
I
IN
, full load
(mA)
(A)
80
80
50
50
80
70
250
20
7.8
.942
7.83
2.29
8.99
2.3
9.67
8.99
Efficiency
Min.
86%
87%
88.5%
89.5%
87%
87.5%
89%
87.7
Typ.
88%
88.5%
90.5%
9%
89%
89.5%
90.5%
89%
Package
(Case/
Pinout)
C68,P32
C68,P32
C68,P32
C68,P32
C68,P32
C68,P32
C68,P32
C68,P32
Typical at TA = +25°C under nominal line voltage and full-load conditions. All models are
specified with an external 1μF multi-layer ceramic and 10μF capacitors across their output pins
and 100μF external input capacitor.
Ripple/Noise (R/N) measured over a 20MHz bandwidth.
Devices have no minimum-load requirements and will regulate under no-load conditions.
Regulation specifications describe the output voltage deviation as the line voltage or load is
varied from its nominal/midpoint value to either extreme. (Load step = 50%.)
Nominal line voltage, no load/full load condition.
These are incomplete part numbers, refer to the part number structure when ordering.
U QQ
-
5
/
17
-
Q12 N B 9 Lx
-
C
Output Configuration
Quarter-Brick Package
Nominal Output Voltage
Maximum Rated Output
Input Voltage Range
Remote On/Off Control Polarity:
Add "P" for positive polarity
Add "N" for negative polarity
Some model options may require minimum order quantities.
RoHS-6 compliant
(please include this designator for all models)
Pin Length Option
L1
= 0.0 (2.79mm)
Alternate pin lengths
L2
= 0.45 (3.68mm)
require quantity order.
Blank
= Std. pin length
Baseplate Pin 9
(special order):
Note:
9 = Pin 9 installed, connects to baseplate
Not all model number
Blank = No pin 9
combinations are
}
Baseplate:
B = baseplate installed
Blank = no baseplate
available. Contact MPS.
Pin 9 Baseplate Connection
The UQQ series may include an optional installed baseplate for extended
thermal management. This baseplate is electrically isolated from the rest of the
converter. Various UQQ models are also available with an additional pin 9 on
special quantity order which electrically connects to the baseplate. Pin 9 is also
isolated from the rest of the converter. Please refer to the mechanical drawings.
Pin 9 offers a positive method of controlling the electrical potential of the base-
plate, independent of the converter. If you do not include pin 9, the baseplate
may also be grounded by the mounting bolts.
The baseplate may be ordered by adding a “B” to the model number tree
and pin 9 will be pre-installed by adding a “9”. The two options are separate.
Please refer to the Ordering Guide.
Do not order pin 9 without the baseplate.
Note that “pin 9” converters may be on limited forecast, requiring minimum
order quantities and scheduled deliveries.
Please see page 9 for heatsink information.
www.murata-ps.com
D C / D C C O N
+
R
339 3000
Technical enquiries
email: sales@murata-ps.com, tel:
V E
508
T E R S
MDC_UQQ_A03
Page 2 of 7
UQQ Series
Wide Input Range Single Output DC/DC Converters
MECHANICAL SPECIFICATIONS
1.860 (47.24)
A
B
B
INPUT/OUTPUT CONNECTIONS
Pin
Function P32
2
3
-Input
Remote On/Off*
+Input
-Output
-Sense
Output Trim
+Sense
+Output
Baseplate (optional)
1.030
(26.16)
1.45
(36.83)
4
5
6
7
8
9
#M3-THREAD X 0.15 DEEP
TYPICAL (4) PLACES
BASEPLATE
Optional baseplate
* The Remote On/Off can be provided with
either positive ("P" suffix) or negative
("N" suffix) polarity.
0.50(12.70)
With Baseplate
0.43(10.92)
Without Baseplate
PINS 1-3, 5-7: 0.040 ±0.001 (1.016 ±0.025)
PINS 4 & 8: 0.060 ±0.001 (1.52 ±0.025)
0.188
(4.78)
2.22 (56.39)
2.00 (50.80)
A
A
0.15 (3.81)
1
9
2
3
Optional pin 9
connects to baseplate
and is electrically
isolated from converter
4
5
6
7
8
B
0.600 (15.24)
4 EQ. SP.
@ 0.150 (3.81)
BOTTOM VIEW
All dimensions are in inches (mm)
www.murata-ps.com
D C / D C C O N
+
R
339 3000
Technical enquiries
email: sales@murata-ps.com, tel:
V E
508
T E R S
MDC_UQQ_A03
Page 3 of 7
UQQ Series
Wide Input Range Single Output DC/DC Converters
Performance and Functional Specifications
UQQ-3.3/25-Q12
UQQ-3.3/25-Q48
UQQ-5/17-Q12
See ordering guide
9.0 Volts
8.0 Volts
37.5 Volts
75mAp-p
See ordering guide
0.A
2
sec
00mA
50mA
0.49 Amps
8mA
L-C
Yes (5)
UQQ-5/20-Q48
UQQ-12/8-Q12
INPUT
Input Voltage Range
Start-up Threshold
Undervoltage Shutdown
Overvoltage Shutdown
Reflected (back) ripple current
(2)
Input Current
Full load conditions
Inrush transient
Output short circuit
No load
Low line (V
IN
= min.)
Standby mode
(Off, UV, OT shutdown)
Internal Input Filter Type
Reverse Polarity Protection
Remote On/Off Control
(5)
Positive logic (“P” suffix)
Negative logic (“N” suffix)
On/Off Current
mA
9.0 Volts
8.0 Volts
40.0 Volts
25mAp-p
7.50 Volts
6.75 Volts
NA
5mAp-p
7.5 Volts
6.75 Volts
None
25mAp-p
9.0 Volts
8.0 Volts
37 Volts
75mAp-p
0.A sec
250mA
50mA
0.3 Amps
2
0.A sec
00mA
80mA
5.04 Amps
2
0.A
2
sec
250mA
50mA
6. Amps
8mA
L-C
Yes (5)
0.A
2
sec
250mA
80mA
.99 Amps
5mA
L-C
Yes (5)
8mA
LC
Yes (5)
2mA
Pi-type
NA
OFF = Ground pin to +0.8V max. ON = open or +3.5-5V max.
OFF = open or +5 to +V
IN
max. ON = Ground pin to +0.8V max. (6)
mA
mA
See ordering guide
±% of V
NOM
(50% load)
–20 to +0% of V
NOM
±0.02% of
V
OUT
range/°C
+0%
±.25% of V
NOM
(50% load)
–5 to +0% of V
NOM
±0.02% of
V
OUT
range/°C
+0%
±% of V
NOM
(50% load)
–20 to +0% of V
NOM
±0.02% of
V
OUT
range/°C
No minimum load
+0%
See ordering guide
0,000μF
4700μF
0,000μF
0,000μF
4700μF
±% of V
NOM
(50% load)
–20 to +0% of V
NOM
±0.02% of
V
OUT
range/°C
+0%
±% of V
NOM
(50% load)
–20 to +0% of V
NOM
±0.02% of
V
OUT
range/°C
+0%
mA
mA
OUTPUT
Voltage Output Range
Voltage Output Accuracy
Adjustment Range
Temperature Coefficient
Minimum Loading
Remote Sense Compensation
Ripple/noise (20MHz bandwidth)
Line/Load Regulation
Efficiency
Maximum Capacitive Loading
Low ESR <0.02W max., resistive load
Isolation Voltage
Input to Output
Input fo baseplate
Baseplate to output
Isolation resistance
Isolation capacitance
Isolation safety rating
Current limit inception
(98% of V
out
,
after warmup)
Short Circuit Protection Method
Short Circuit Current
Short Circuit Duration
Overvoltage Protection
via magnetic feedback
2000 Volts min.
500 Volts min.
500 Volts min.
00MW
500 pF
Basic insulation
29 Amps
2250 Volts min.
500 Volts min.
500 Volts min.
00MW
000 pF
Basic insulation
29 Amps
2000 Volts min.
500 Volts min.
750 Volts min.
00MW
500 pF
Basic insulation
20.5 Amps
2250 Vvolts min.
500 Volts min.
750 Volts min.
00MW
500pF
Basic insulation
25 Amps
2250 Volts min.
500 Volts min.
750 Volts min.
00MW
000 pF
Basic insulation
0 Amps
5 Amps
4 Volts
Current limiting, hiccup autorestart. Remove overload for recovery.
5 Amps
0.5 Amps
5 Amps
Continuous, output shorted to ground (no damage)
3.96 Volts max.
6 Volts
6 Volts
0.5 Amps
4.4 Volts
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+
R
339 3000
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508
T E R S
MDC_UQQ_A03
Page 4 of 7
UQQ Series
Performance and Functional Specifications
(continued)
UQQ-12/8-Q48
UQQ-15/7-Q12
See ordering guide
9.0 Volts
8.0 Volts
38.5 Volts
50mAp-p
See ordering guide
0.A
2
sec
250mA
250mA
0.20 Amps
5mA
L-C
Yes (5)
Wide Input Range Single Output DC/DC Converters
UQQ-24/4-Q12
INPUT
Input Voltage Range
Start-up Threshold
Undervoltage Shutdown
Overvoltage Shutdown
Reflected (back) ripple current
(2)
Input Current
Full load conditions
Inrush transient
Output short circuit
No load
Low line (V
IN
= min.)
Standby mode
(Off, UV, OT shutdown)
Internal Input Filter Type
Reverse Polarity Protection
Remote On/Off Control
(5)
Positive logic (“P” suffix)
Negative logic (“N” suffix)
On/Off Current
7.5 Volts
6.0 Volts
None
5mAp-p
9.0 Volts
8.0 Volts
None
50mAp-p
0.A sec
00mA
90mA
5.96A
2
0.A
2
sec
250mA
20mA
0.73 Amps
5mA
L-C
Yes (5)
2mA
PI-type
NA
OFF = Ground pin to +0.8V max. ON = open or +3.5-5V max.
OFF = open or +5 to +V
IN
max. ON = Ground pin to +0.8V max. (6)
mA
mA
See ordering guide
±% of V
NOM
(50% load)
–20 to +0% of V
NOM
±0.02% of
V
OUT
range/°C
+0%
±% of V
NOM
(50% load)
–20 to +0% of V
NOM
±0.02% of
V
OUT
range/°C
No minimum loading
+0%
See ordering guide
2200µF
4700μF
500μF max
±% of V
NOM
(50% load)
±0% of V
NOM
±0.02% of
V
OUT
range/°C
+0%
mA
OUTPUT
Voltage Output Range
Voltage Output Accuracy
Adjustment Range
Temperature Coefficient
Minimum Loading
Remote Sense Compensation
Ripple/noise (20MHz bandwidth)
Line/Load Regulation
Efficiency
Maximum Capacitive Loading
Low ESR <0.02W max., resistive load
Isolation Voltage
Input to Output
Input fo baseplate
Baseplate to Output
Isolation resistance
Isolation capacitance
Isolation safety rating
Current limit inception
(98% of V
out
, after warmup)
Short Circuit Protection Method
Short Circuit Current
Short Circuit Duration
Overvoltage Protection
via magnetic feedback
5 Volts
2250 Volts min.
500 Volts min.
500 Volts min.
00MW
000 pF
Basic insulation
0.5 Amps
2000 Volts min.
500 Volts min.
500 Volts min.
00MW
000 pF
Basic insulation
9.5 Amps
2000 Volts min.
500 Volts min.
500 Volts min.
00MW
000 pF
Basic insulation
5.75 Amps
Current limiting, hiccup autorestart. Remove overload for recovery
5 Amps
0.5 Amps
0.5 Amps
Continuous, output shorted to ground (no damage)
8 Volts
29 Volts
www.murata-ps.com
D C / D C C O N
+
R
339 3000
Technical enquiries
email: sales@murata-ps.com, tel:
V E
508
T E R S
MDC_UQQ_A03
Page 5 of 7
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