DALLAS - Texas Instruments Incorporated (TI) today
announced two new non-isolated DC/DC power modules for telecommunications, industrial control and measurement
systems that are 50 percent smaller than the previous generation devices and are Pb-free. The devices feature input
voltages from 2.9 V to 5.5 V and adjustable wide-output voltages of either 5 V to 15 V (boost) or -3.3 V to 15 V
The PTN04050A is a 6-W, buck-boost, positive-to-negative converter with
a wide-range input
voltage of 2.9 V to 7 V and an adjustable
wide-output voltage of -3.3 V to -15 V. The PTN04050C is a 12-W
module that features a 2.95 V to 5.5 V input voltage range and an
adjustable wide-output voltage of 5 V
to 15 V. Both have an operating
temperature of -40 C to +85 C and include over-temperature protection.
easy-to-use modules offer a compact design solution and are
available in surface-mount and through-hole packages.
The devices operate from either a standard 3.3 V or 5 V bus and can be used together to create plus
and minus voltage rails required by many analog ICs such as op amps and data converters. Their high efficiency, 84
percent for the PTN04050C and 88 percent for the PTN04050A, make them an excellent choice in many analog circuit
applications. The latter also features on/off inhibit, under-voltage lockout and over-current protection.
The wide-range output voltage of the devices helps reduce customer inventory since one part can be
used for a variety of applications. The PTN04050A is well-suited for industrial controls, HVAC systems, test and
measurement, medical instrumentation, marine and avionics, and AC/DC adaptors. Target applications for the PTN04050C
include telecom, industrial test and measurement, instrumentation, distributed power and general purpose circuits.
Both are effective for embedded applications in industrial and other challenging environments.
The PTN04050A and
PTN04050C power modules are available now from TI and its authorized distributors. Both devices are offered in
surface-mount and through-hole packages measuring 22 mm x 12.4 mm x 8.3 mm. They are priced from $8.00 in 1,000
piece quantities (suggested resale pricing).