DC-DC Converters (Non-isolated)

High-efficiency non-isolated SMT switching regulator — up to 95 % efficiency in ultra-thin and open-frame variants

500 mA Output Current, 95 % Efficiency, 4.75–36 V Input Range, 2 M h MTBF, SMT Package

The new LMTO78 series is a non-isolated, high-efficiency DC/DC switching regulator in an SMT package,
developed for modern, energy-efficient electronic assemblies where efficiency, reliability, and compactness are equally critical. The series is available in two mechanical variants: the LMTO78_0.5R in an ultra-thin SMT housing of just 3.5 mm height (12.50 x 13.50 x 3.50 mm) and the LMTO78_0.5R1 in an open-frame design (12 x 12 x 4.5 mm). Both variants deliver 500 mA output current and are available across a broad output-voltage range from 3.3 to 15 VDC

With an efficiency of up to 95 % at full load, the LMTO78 series minimises power dissipation and operates
entirely without external heatsinks — a decisive advantage for densely populated PCBs and compact
enclosures. The no-load input current is as low as 0.2 mA, further reducing energy consumption in stand-by. Depending on the output version, the input voltage range extends from 4.75 to 36 VDC, reliably covering standard 24 V industrial buses with wide voltage-tolerance bands.

Engineered for outstanding reliability, the LMTO78 series achieves an impressive MTBF of 2,000,000 hours
(MIL-HDBK-217F @ 25 °C) and operates stably across a temperature range of -40 °C to +85 °C (with derating from 71 °C). The integrated continuous short-circuit protection with automatic recovery safeguards the system even under fault conditions. The LMTO78_0.5R additionally features a remote on/off input (Ctrl) and meets MSL Level 1 for unlimited floor life under standard conditions.

Both variants comply with CISPR32/EN 55032 Class B (using the recommended external circuit) and meet the relevant immunity requirements, including ESD up to ±4 kV (contact) and surge up to ±1 kV. With a switching frequency of 500 kHz (LMTO78_0.5R) and 1.2 MHz (LMTO78_0.5R1), the series can be flexibly tailored to different filter-design and component-size requirements. The LMTO78 series is fully RoHS-compliant, underlining GAPTEC’s commitment to environmentally friendly and high-quality power-supply solutions

Typical fields of application include distributed power-supply systems, industrial automation, measurement and test equipment, IoT and communication electronics, and any design that demands high efficiency in a confined space.

GAPTEC Electronic is a leading supplier of innovative power-supply solutions, serving the growing demands of engineers and industry worldwide. Driven by a commitment to excellence and innovation, GAPTEC Electronic supports developers with state-of-the-art technologies to bring their projects to life.

GAPTEC Electronic guarantees the shortest possible lead times. Product warranty is three years. For further information, please contact GAPTEC Electronic directly.

Ultra-compact non-isolated SMT DC/DC switching regulator — 0.5 A and 1.0 A in just 9 x 7 x 3 mm

0.5 / 1.0 A Output Current, 91 % Efficiency, 6.5–36 V Input Range, 1 M h MTBF , SMT Package

The new LMTM78 series is a non-isolated, regulated DC/DC switching regulator housed in an ultra-compact SMT package, engineered for space-critical and energy-efficient applications in modern electronics. The series is available in two current variants: the LMTM78_0.5R1 delivers 500 mA and the LMTM78_1.0R1 delivers 1,000 mA of output current — both featuring a wide 6.5 to 36 VDC input voltage range and a regulated 5 V output (also available as a -5 V variant).

The standout feature of the series is its remarkably compact and slim form factor of only 9.00 x 7.00 x 3.00 mm — an ideal footprint for highly integrated assemblies where every square millimetre counts. With an efficiency of up to 91 % at full load and a no-load current of just 0.1 mA, the LMTM78 series delivers excellent energy utilisation in both active operation and stand-by. No external heatsink is required, significantly simplifying integration and reducing overall system complexity.

Designed for reliable continuous operation, the series covers an extended temperature range from -40 °C to +85 °C (with derating from 71 °C). A continuous short-circuit protection with automatic recovery safeguards the downstream system even under fault conditions. An MTBF of 1,000,000 hours (MIL-HDBK-217F @ 25 °C) underlines the long-term reliability of the series.

Operating at a switching frequency of 500 kHz with a typical ripple & noise of 50 mVp-p and built-in light-load frequency-reduction technology to reduce power consumption at low loads, the LMTM78 series provides a stable and clean supply for sensitive downstream electronics. The module complies with EN 55032 Class B (using the recommended external circuit) as well as ESD (±4 kV contact) and surge (±1 kV) immunity requirements. The flame-retardant black plastic case is certified to UL94 V-0. The converter follows the international standard SMD pin-out on a 2.54 mm grid and is supplied on tape & reel for automated assembly.

With its combination of ultra-compact form factor, high efficiency, and industrial-grade reliability, the LMTM78 series is the ideal choice for distributed power architectures, measurement and control technology, IoT devices, communication electronics, and embedded industrial applications

GAPTEC Electronic is a leading supplier of innovative power-supply solutions, serving the growing demands of engineers and industry worldwide. Driven by a commitment to excellence and innovation, GAPTEC Electronic supports developers with state-of-the-art technologies to bring their projects to life.

GAPTEC Electronic guarantees the shortest possible lead times. Product warranty is three years. For further information, please contact GAPTEC Electronic directly.

GAPTEC Electronic announces the launch of the LME78_2.0R and LME78_3.0R families—non-isolated switching regulators optimized for high-efficiency low-voltage conversion in compact electronic systems.

With an ultra-wide input voltage range of up to 7:1, these converters provide exceptional flexibility across various power conditions. The LME78_2.0R supports up to 2A, while the LME78_3.0R handles up to 3A output current. Both versions offer efficiencies up to 96% and come in compact PCB-mountable formats.

Their design follows an industry-standard pinout, requires no external components, and includes short circuit and overcurrent protection. Built into a UL94-V0 flame-retardant housing, these regulators ensure high durability and safety.

Operating from -40°C to +90°C, they are an excellent fit for applications in industrial electronics, telecommunications, and embedded systems where space, simplicity, and reliability are critical.

GAPTEC Electronic is a leading provider of cutting-edge power solutions, catering to the evolving needs of engineers and industries worldwide. With a commitment to excellence and innovation, GAPTEC Electronic aims to empower engineers with state-of-the-art technologies to drive success in their projects.

GAPTEC Electronic guarantees very short delivery times. The product warranty is 3 years. For additional information please contact GAPTEC Electronic directly:

www.gaptec-electronic.com
Tel. +49-6106-62598-100
sales@gaptec-electronic.com

GAPTEC Electronic presents the new LCW78_1.0 series.

The LCW78_1.0 series is a non-isolated POL switching regulator with an ultra-wide 14:1 high input voltage range (5-72VDC) that comes in a standard SIP3 package, covering most of the battery ranges and the standard power bus. This series offers high efficiency up to 96% and a very low quiescent current: 500uA. Further features are a low ripple and noise (50 mVP-p) and short circuit protection (SCP).

GAPTEC Electronic guarantees very short delivery times. The product warranty is 3 years. For additional information please contact GAPTEC Electronic directly:

www.gaptec-electronic.com
Tel. +49-6106-62598-100
sales@gaptec-electronic.com

Download Data Sheet LCW78_1.0

GAPTEC Electronic presents the new LMTO78_0.5 switching regulator series.

The new LMTO78_0.5 series offers a non-isolated high efficiency open frame package switching regulator in an ultra-thin SMD design: Only 12.5 x 13.5 x 3.5 mm (L x W x H)! This product is featured with high efficiency up to 95%. It offers continuous short circuit protection (SCP) and ultra-low no-load power consumption as low as 0.2 mA. Operating temperature range: -40°C ~ +85°C. These switching regulators are widely used in industrial control, instrumentation, and electric power applications.

GAPTEC Electronic guarantees very short delivery times. The product warranty is 3 years.

Download Data Sheet LMTO78_0.5