UNR-2.5/10-D5-C Murata Power Solutions Inc, UNR-2.5/10-D5-C Datasheet - Page 3

• Manufacturer Part Number: UNR-2.5/10-D5-C
• Description: DC/DC TH 10A 5-2.5V Non-Iso
• Manufacturer: Murata Power Solutions Inc
• Series: UNRr

Specifications of UNR-2.5/10-D5-C

• Product: Non-Isolated / POL
• Output Power: 25 W
• Input Voltage Range: 4.75 V to 5.5 V
• Number Of Outputs: 1
• Output Voltage (channel 1): 2.5 V
• Output Current (channel 1): 10 A
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

www.murata-ps.com
Performance/Functional Specifications
Typical @ T
Input Voltage Range
Input Current:
On/Off Control
Efficiency
Overcurrent Protection:
Start-Up Time:
Switching Frequency
Input Ripple Current:
Input Filter Type
Overvoltage Protection
Reverse-Polarity Protection
V
V
Temperature Coefficient
Ripple/Noise (20MHz BW)
Line/Load Regulation
Transient Response (50%-75% step)
Operating Temperature (Ambient):
Storage Temperature
Dimensions:
Shielding
Case Connection
Case Material
Pin Material
Weight
OUT
OUT
Normal Operating Conditions
Standby/Off Mode
Output Short Circuited
UNR-1.5/10-D3, UNR-1.8/10-D3
UNR-2.5/10-D3
UNR-1.5/10-D3
UNR-1.8/10-D3
UNR-2.5/10-D3
Trim pin tied to +Output:
Trim pin tied to Output Return
V
On/Off to V
Without Derating
With Derating
Through-Hole Models
Surface-Mount Models
Technique
Overcurrent Detection Point
Average Output Current
IN
UNR-1.5/10-D3, UNR-1.8/10-D3
UNR-2.5/10-D3
Trim Range
to V
Accuracy (50% load):
A
= +25°C under nominal line voltage and full-load conditions unless noted.
OUT
OUT
Dynamic Characteristics
Environmental
Physical
Input
Output
3.0 to 3.6 Volts (3.3V nominal)
See Ordering Guide
3.6mA typical, 8mA maximum
500mA typical, 700mA maximum
150mAp-p
50mAp-p
Capacitive
None
None
±1% (±15mV) maximum
±1% (±18mV) maximum
±1% (±25mV) maximum
V
V
V
±0.02% per °C
See Ordering Guide
See Ordering Guide
See Ordering Guide
25μsec to ±2.5% of final value
25/30msec (1.8/2.5V
25/30msec (1.8/2.5V
300kHz (±30kHz)
–40 to +50/55°C
to +100°C (See Derating Curves)
–40 to +105°C
2" x 1" x 0.39" (51 x 25 x 9.9mm)
2" x 1" x 0.43" (51 x 25 x 10.9mm)
5 sided
Input/Output Return
Corrosion-resistant steel with
non-conductive, epoxy-based, black
enamel finish and plastic baseplate
RoHS: Gold-plate over copper alloy
Non-RoHS: Pure tin on copper alloy with
nickel underplate
1.4 ounces (39.7 grams)
On = open or 2V to +V
Off = 0-0.8V; I
"Hiccup" with auto-recovery
140% of rated current
1 Amp typical, 3 Amps maximum
OUT
OUT
OUT
= 1.28 Volts or less
= 1.52 Volts or less
= 3.0 Volts or greater
IN
= 1.2mA max.
OUT
OUT
IN
; I
models)
models)
IN
= 800μA max.
Return Current Paths
These are non-isolated DC/DC converters. The Input Return, Output Return
and Logic Ground pins are all connected together internally. To the extent
possible, all input and load currents should be returned through the Input
Return and Output Return, respectively (via low-impedance runs). Any con-
trol signals applied to the On/Off Control pin should be referenced to Logic
Ground. The internal trace leading to Logic Ground is not designed to carry
high current. Consequently, devices should never be installed in a manner
that results in high current flow through Logic Ground (i.e., the Input/Output
Return pins should never be left open or connected via high-impedance paths).
I/O Filtering and Noise Reduction
All UNR 15-25W Series converters are tested and specified with external
470μF input capacitors (20m ESR, 6Arms ripple-current rating) and
external 22μF output capacitors (200m ESR). External input capacitance is
required and must be rated to handle the input ripple current as follows:
In critical applications, input/output ripple/noise may be further reduced by
installing additional I/O caps.
Input Voltage:
Input Reverse-Polarity Protection
Input/Output Overvoltage Protection
Output Current
Storage Temperature
Lead Temperature (Soldering, 10 sec.)
These are stress ratings. Exposure of devices to any of these conditions may adversely
affect long-term reliability. Proper operation under conditions other than those listed in the
Performance/Functional Specifications Table is not implied.
T E C H N I C A L N O T E S
All models are tested and specified with an external 470μF input capacitor with a 20m
ESR and a 6Arms ripple-current rating, as well as a 22μF output capacitor with a 200m ESR.
See I/O Filtering and Noise Reduction for more details. These devices have no minimum-load
requirements and will regulate under no-load conditions. Listed specifications apply for both
"T" and "SM" models as appropriate.
See Output Overcurrent Detection for details.
See On/Off Control for details.
See Output Voltage Trimming for details.
For all models, output noise can be further reduced with the installation of additional
external output capacitors. See I/O Filtering and Noise Reduction for details.
Output overcurrent detection initiates at approximately 40% above rated load (14 Amps). Under
overload or short-circuit conditions, output current "hiccups" at approximately 1 Amp average
and remains at that level until the overload is removed. See Output Overcurrent Detection.
See Start-Up Time for details.
See Temperature Derating for details.
The lowest input voltage for startup under full load is 3.1V minimum. Once started, the input
voltage may decay to 3.0V. Lighter loads will allow 3.0V startup
Continuous
Transient (100msec)
Single Output, Non-Isolated, 3.3V
I
RMS
Technical enquiries email: [e-mail], tel:
= I
OUT
Absolute Maximum Ratings
V
V
OUT
IN
8 and 10 Amp DC/DC Converters
UNR D3 SERIES
5 Volts
6.3 Volts
None
None
Current limited. Devices can
withstand a sustained output
short circuit without damage.
–40 to +105°C
+300°C
(
1 –
V
V
OUT
IN
MDC_UNR15-25W Page 3 of 8
IN
)
to 1.5/1.8/2.5V
[phone]
OUT