unr3-6to10w Murata Manufacturing Co., Ltd, unr3-6to10w Datasheet - Page 3

• Manufacturer Part Number: unr3-6to10w
• Description: Single Output, Non-isolated, 1.8/2.5/3.3vout 3.6-10w Dc/dc Converters
• Manufacturer: Murata Manufacturing Co., Ltd

Performance/Functional Specifications
Typical @ T
Specifications apply to both surface-mount and through-hole models, unless noted.
Input Voltage Range:
Overvoltage Shutdown
Start-Up Threshold:
Undervoltage Shutdown:
Input Current:
Input Ripple Current:
Input Filter Type
Reverse-Polarity Protection
On/Off Control
V
Temperature Coefficient
Ripple/Noise (20MHz BW)
Line/Load Regulation
Efficiency
Current Limiting
Transient Response (50% load step):
Start-Up Time:
Switching Frequency
Operating Temperature (Ambient):
Storage Temperature
Flammability
OUT
D5 Models
D12 Models
D12 Models
D12 Models
Normal Operating Conditions
Standby Mode (Off or undervoltage):
Output Short-Circuit Condition
1.8V
2.5V
1.8V
2.5V
3.3V
3.3V
1.8V
2.5V
3.3V
V
On/Off to V
Without Derating
With Derating
IN
1.8V
2.5V
3.3V
Accuracy (50% load):
to V
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
A
OUT
OUT
OUT
= +25°C under nominal line voltage and full-load conditions with no external filtering.
OUT
, 3.3V
, 3.3V
, 3.3V
Models
Models
D5 Models
D12 Models
Models
D5 Models
: D5 Models
, 3.3V
OUT
D12 Models
D12 Models
OUT
OUT
OUT
: D5 Models
OUT
D12 Models
D12 Models
D12 Models
D5 Models
D5 Models
Dynamic Characteristics
Environmental
Output
Input
4.75-5.5 Volts (5V nominal)
10.8-13.6 Volts (12V nominal)
None
10.2V typical, 10.8V maximum
9.6V typical, 8.2V minimum
See Ordering Guide
20mA typical, 30mA maximum
11mA typical, 20mA maximum
5mA typical, 10mA maximum
50mArms
50mAp-p
150mAp-p
Capacitive
None
TTL high (or open) = on, low = off
1.5V typical logic threshold
±1.75% (±32mV) maximum
±1.75% (±44mV) maximum
±1.5% (±50mV) maximum
±1% (±33mV) maximum
±0.02% per °C
See Ordering Guide
See Ordering Guide
See Ordering Guide
Auto-recovery
20μsec to ±1% of final value
30μsec to ±1% of final value
40μsec to ±1% of final value
100msec typical, 120msec maximum
13msec typical, 20msec maximum
60msec typical, 120msec maximum
13msec typical, 20msec maximum
200kHz (±30kHz)
–40 to +65/70°C
to +100°C (See Derating Curves)
–40 to +105°C
UL 94V-0
www.murata-ps.com
Single Output, Non-Isolated, 1.8/2.5/3.3V
tions.
On/Off Control for normal operation. See On/Off Control for details. The UNR-3.3/3-D12 and
minimally rated for 1.5Arms ripple current and 125mΩ ESR. Output noise for all models
can be further reduced with the installation of external output capacitors. See I/O
Dimensions:
Shielding:
Case Connection (Surface Mount)
Case Material:
Pin Material:
Weight
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.
Input Voltage:
Input Reverse-Polarity Protection
Output Overvoltage Protection
Output Current
Storage Temperature
Lead Temperature
D5/D5SM models may experience start-up problems if voltages greater than 1.0V (for 3.3V
Surface Mount Package
Through Hole Package
Surface Mount Package
Through Hole Package
Surface Mount Package
Through Hole Package
RoHS:
Non-RoHS
D5 models require a minimum 300mA load current to maintain specified regulation.
D12 models have no minimum load requirement. Operating D5 models under no-load
conditions will not damage these devices, however they may not meet all listed specifica-
The UNR-1.8/2-D5 and D5SM require an external 15Ω pull-up resistor between +Input and
D12SM are specifiied with an external 22μF input capacitor. See I/O Filtering for details.
See Startup Threshold and Undervoltage Shutdown for details.
See On/Off Control for details.
The 22μF external input capacitor required for the UNR-3.3/3-D12 and D12SM should be
for details.
Current limiting initiates at approximately 30% above rated load. Under short-circuit
conditions, output current folds back to approximately 150mA and input current drops to
approximtely 50mA. Both remain at those levels until the short is removed.
See Start-Up Time for details.
models) or 1.2V (for 1.8/2.5V models) are present across the output pins during power-up.
Continuous:
Transient (100msec):
Selective soldering (10 sec.)
Reflow soldering (75 sec.)
D5 Models
D12 Models
D5 Models
D12 Models
Technical enquiries email: [e-mail], tel:
Absolute Maximum Ratings
Physical
OUT
.
1" x 1" x 0.47" (25 x 25 x 11.9mm)
1" x 1" x 0.45" (25 x 25 x 11.4mm)
5-sided
None
Input/output return
Corrosion-resistant steel with
non-conductive, epoxy-based, black
enamel finish and plastic baseplate
Diallyl phthalate, UL94V-0 rated
Gold plate over copper alloy
Tin over copper alloy
0.6 ounces (17 grams)
3.6-10W DC/DC Converters
7 Volts
15 Volts
15 Volts
24 Volts
None
None
Current limited. Devices can
withstand a sustained output
short circuit without damage.
–40 to +105°C
+300°C
+230°C
UNR Series
MDC_UNR 3.6-10W_B01
[phone]
Filtering
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