Reference Design Using the MAX15026 for an Auxiliary Power Supply for LCD TVs or Set-Top Boxes
This application note shows a reference design using the MAX15026 low-cost, high-efficiency synchronous buck converter in an auxiliary power supply for LCD TVs or set-top boxes. This reference design generates a 5V, 5A power supply from a wide, 6.5V to 24V input voltage range.
|
Reference Design for the MAX5073 Dual Buck Converter Operating at a Switching Frequency of 2MHz
The MAX5073 is a dual converter capable of operating as a buck or boost converter. As a dual buck converter, this device can deliver up to 2A and 1A of output current. The reference design focuses on the MAX5073 operating as a buck converter with a switching frequency of 2MHz, which allows the use of smaller passive components and keeps it out of the AM band for automotive applications.
|
Reference Design of a 1-Wire Bidirectional Voltage-Level Translator for 1.8V to 5V
Devices such as FPGAs, microprocessors, the DS2482-100, and DS2480B are examples of 1-Wire master devices. The 1-Wire/ iButton slave devices are manufactured by Maxim and comprise an extensive family of parts that typically operate from 2.8V to 5.25V. The 1-Wire masters and slave devices have traditionally been 5V open-drain logic in the past.
Today designers need open-drain logic to run at 1.8V at the 1-Wire master IO. While most 1-Wire slave devices can run safely at 5V, most of those same devices cannot run at 1.8V. A bidirectional voltage-level translator circuit is needed to overcome this limitation. This RD (reference design) features the Maxim MAX3394E, which is a bidirectional voltage-level translator for these applications.
|
Reference Design for Switching VGA Signals in a Laptop
This application shows how the MAX4885E low-capacitance VGA switch can be used to perform the switching function in a laptop computer. The MAX4885E draws nearly zero current, fits into a 4mm x 4mm package, and incorporates most of the switches and active components used in a discrete implementation. All device outputs are protected to ±15kV Human Body Model (HBM) so that the designer can eliminate many ESD components, thereby reducing cost and saving board space. An application circuit shows the MAX4885E used for VGA signal switching between a laptop and docking station.
|
Reference Design for a Powered-Device (PD) Module Based on the MAX5941B PWM Controller
This application note provides a reference design for an IEEE 802.3af-compliant, 12.95W adjustable-output powered-device module. Assembled on a 12cm² PCB, the module is based on the MAX5941B PWM controller and includes hotswap power switching, a DC-DC converter, and a pair of ORing diode bridges for compatibility with an external 12V adapter. This article details the performance of the module and provides a schematic, PCB layout, and components list for the design.
|
