Dual Output BCP Models
www.murata-ps.com
3.3 and 2.5V, Half-Brick
50 Watt DC/DC Converters
FEATURES
PRODUCT OVERVIEW
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Independent 3.3V and 2.5V outputs
Murata Power Solutions' BCP "half-brick" series
has expanded to include dual-output, 3.3V and
2.5V DC/DC converters. The BCP-3.3/15-2.5/15-
D24 (18-36V input) and BCP-3.3/15-2.5/15-D48
(36-75V input) are fully isolated DC/DC convert-
ers housed in standard "half-brick" packages
(2.3" x 2.4" x 0.5"). These BCP’s can support
any combination of 3.3V and 2.5V loading up to
a combined total of 15 Amps. Both outputs are
fully isolated (1500Vdc) and independently line
( 0.2ꢀ) and load ( 0.5ꢀ) regulated.
protection, current limiting, and thermal shut-
down. Each has an on/off control function (positive
and negative logic versions available), and both
output voltages can be trimmed independently.
BCP Model DC/DCs deliver low noise (50mVp-p),
efficiency of 84ꢀ and are fully specified for –40 to
+100°C operation. Utilization of metal baseplate
technology with threaded inserts permits easy
heat-sink attachment and/or pcb mounting. These
devices meet UL1950 and IEC/EN60950-1 safety
standards, including BASIC insulation require-
ments. CB reports are available on request. "D48"
models are CE marked (meet the requirements
of LVD).
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Up to 15 Amps per output
Each output fully regulated
No minimum load requirements
50 Watts total output power
Standard "half-brick" package
UL1950 and IEC/EN60950-1 safety
approvals (BASIC insulation)
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Fully isolated, 1500Vdc guaranteed
Both BCP models feature input pi filters, input
undervoltage and overvoltage shutdown, input
reverse-polarity protection, output overvoltage
18-36V or 36-75V input ranges
mark available (75V-input models)
Input under and overvoltage shutdown
Continuous short-circuit protection
Thermal shutdown
+3.3V OUTPUT
(7)
+INPUT
(4)
SWITCH
CONTROL
3.3V RETURN
(6)
+2.5V OUTPUT
(10)
–INPUT
(1)
2.5V RETURN
(9)
REFERENCE
& ERROR AMP
ON/OFF
CONTROL
(3)
REGULATOR
2.5V TRIM
(8)
PWM
OPTO
REFERENCE
CONTROLLER
ISOLATION
& ERROR AMP
3.3V TRIM
(5)
UV & OV
COMPARATORS
THERMAL
Typical typology is shown.
SHUTDOWN
For full details go to
www.murata-ps.com/rohs
Figure 1. Simplified Schematic
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MDC_BCP Models.B05 Page 1 of 7