DC-DC

TDK has introduced higher-power versions of its i7 range of 1/16 brick dc-dc converters, culminating in the 1,000W I7A24080A033V. This converter measures ~34 x 37 x 20mm tall and can deliver up to 80A at 3.3 to 18V so long as the power limit is not passed. The input is nominally 24Vdc, and can range across 18 – 32V. There ...

XP Power has added a digital control option to its HRF15 15W adjustable precision high-voltage dc-dc PSU series. There are three basic models, all 24Vin and all non-isolated: HRF1524S10K0* – 0 to 10kV at 1.5mA HRF1524S12K0* – 0 to 12kV at 1.25mA HRF1524S15K0* – 0 to 15kV at 1mA The main options on top of this are: Positive (*=P) or ...

XP Power has announced 40W isolated dc-dc converters in a 1 x 1inch (25.4 x 25.4mm) PCB-mount format. BCT40T converters are available in variants with a choice of two 4:1 input ranges ’24V’ (9 to 36Vdc) or ’48V’ (18 to 75Vdc). Variants with single or dual outputs: 3.3V (10A), 5V (8A), 12V (3.33A), 15V (2.67A), 24V (1.67A), ±12V (±1.67A) or ...

Littelfuse has launched a single-channel isolated gate driver typically capable of delivering ±7A and  ±4A at minimum. IX3407B, as it will be known, uses a 2.5kV capacitive isolation barrier (3kV for 1s) and can withstand 150kV/μs transients. The inputs’ thresholds are compatible with 3.3V logic and there are separate pull-up and pull-down outputs so that resistors can be used to ...

Drive System Design has announced a >200kW hydrogen fuel cell-based power train module for trucks and buses. It is the outcome of ‘Project Archer’, a programme part-funded by the UK’s Advanced Propulsion Centre. Intelligent Energy led Archer, building the fuel cell around its own existing stack design. Gems (General Engine Management Systems) Performance Electronics developed an electronic control unit for ...

Diodes has announced four automotive buck converters for 48V rail point-of-load use. The parts are similar, but rated at 5 to 100V or 5 to 80Vin, and 2.5A or 3.5A out. There are not synchronous rectifier ICs. Instead they include a 500mΩ (950mΩ max) series switch and expect a high current Schottky diode to be connected externally. Part numbers are ...

Renesas has turned to a three-level buck topology for an IC aimed at USB-C battery charging and voltage regulation. “The three-level converter delivers exceptional efficiency and significantly reduces the required inductance for regulating the output voltage,” according to the company. Compared to a standard (two-level) buck converter, a three-level buck adds two additional switches and a flying capacitor (see diagram). ...

TDK has introduced a set of 3.3 x 3.3 x 1.35mm point-of-load converters. There are 12 models in the FS160x series, divided into three output current ratings: FS1606 for 6A at 0.6, 1, 1.05, 1.1, 1.2, 1.5, 1.8 or 2.5V FS1604 for 4A at 2.5 or 3.3V FS1603 for 3A at 3.3 or 5V The 600mV version of the 6A ...

With USB Power Delivery in mind, EPC has designed a 180W GaN dc-dc converter evaluation board. Its two-phase power section occupies only 24 x 24mm, using both sides of the board and ignoring input and output bulk capacitors. Called EPC91109 and intended to implement USB-PD 3.1, it delivers 12, 16 or 20V from an input range of 20 to 36V. ...

Microchip has introduced a 15W radiation-rated dc-dc converter for space use. Intended to be fed from a satallite’s 28V bus (22V to 42V, 50V abs max), SA15-5-5T has three isolated 5V 1A outputs that can be paralleled for more current or connected in series for higher voltages. Output ripple is <1%, and operation is over-55 to 125°C, with de-rating above ...