The QME48T40 DC-DC Series of converters provide outstanding thermal
performance in high temperature environments. This performance is
accomplished through the use of patented/patent-pending circuits,
packaging, and processing techniques to achieve ultra-high efficiency,
excellent thermal management, and a low-body profile.
The low-body profile and the preclusion of heat sinks minimize impedance to
system airflow, thus enhancing cooling for both upstream and downstream
devices. The use of 100% automation for assembly, coupled with advanced
electronic circuits and thermal design, results in a product with extremely high
reliability.
Operating from a 36-75 V input, the QME48T40 converters provide any
standard output voltage from 3.3 V down to 1.0 V that can be trimmed from –
20% to +10% of the nominal output voltage (±10% for output voltages 1.2 V
and 1.0 V), thus providing outstanding design flexibility.
RoHS lead-free solder and lead-solder-exempted products are
available
Delivers up to 40 A
Outputs available: 3.3, 2.5, 1.8, 1.5, 1.2 and 1.0 V
Industry-standard quarter-brick pinout
On-board input differential LC-filter
Startup into pre-biased load
No minimum load required
Dimensions: 1.45” x 2.30” x 0.425”
(36.83 x 58.42 x 10.80 mm)
Weight: 1.2 oz [34.2 g]
Meets Basic Insulation requirements of EN60950
Withstands 100 V input transient for 100 ms
Fixed-frequency operation
Fully protected
Remote output sense
Non-Latching / Latching OTP option
Positive or negative logic ON/OFF option
Output voltage trim range: +10%/−20% with industry-standard trim
equations (±10% for 1.2 V and 1.0 V)
High reliability: MTBF = 13.9 million hours, calculated per Telcordia TR-
332, Method I Case 1
Approved to the following Safety Standards: UL/CSA60950-1,
EN60950-1, and IEC60950-1
Designed to meet Class B conducted emissions per FCC and EN55022
when used with external filter
All materials meet UL94, V-0 flammability rating