Low Voltage Triple Output DC DC Converter
Calex Mfg. Co., Inc. of Concord California announces the 75 Watt LT Triple
Output DC DC Converter family. The LT Triple Series consists of 12 models
with input ranges of 18 to 36VDC and 36 to 75VDC. What makes the Series unique
is that each model offers three precisely regulated positive output voltages
ranging from 5V down to 1.5V. For example, the 24T3.1R8.1R5LT has an input
range of 18 to 36VDC and outputs of 3.3V, 1.8V and 1.5V. Each output is rated
at 10A with up to a 75W maximum power rating for all three outputs combined.
In designs requiring three regulated voltages the LT eliminates the necessity
of using three separate bricks reducing cost and the amount of board space
required. The LT Triple is housed in an industry standard 1/2 brick case measuring
2.4" x 2.28" x 0.53".
The switching frequency for all models is 430kHz. All models are isolated
input to output at 1544VDC. Input protection features include undervoltage
lockout and input reverse voltage protection. The output voltage setpoint
accuracy for the LT Triple is ±1% with zero turn on overshoot. The
output voltage temperature coefficient is only 0.003%/°C. Output noise
is as low as 15mV peak to peak. Line and load regulation is 0.1 and 0.5% respectively.
Output protection features include pulse by pulse current limiting, short
circuit frequency foldback and overtemperature shutdown.
The LT Triple models also offer remote ON/OFF for power sensitive applications.
The idle current in the off state is only 2mADC. The units can be configured
for positive or negative ON/OFF logic. The LT Triple also features output
voltage trim. The trim range is ±10% for each output. The MTBF for
the LT Triple is greater than 1M hours. The baseplate operating temperature
for each model is -40 to 100°C. The thermal impedance of the case is 7
°C/W. The LT is potted with a thermally conductive potting compound and
has a metal baseplate for extended temperature applications. The LT Series
is backed by Calex’s Five Year Warranty.
Complete Datasheet:
75
Watt LT Triple Series DC DC Converters