MAXREFDES1003: 150mA, 4-channel, LED driver, SEPIC configuration

The MAX16813 is a highly efficient, high-brightness (HB) LED driver that provides four integrated LED current-sink channels. An integrated current-mode switching controller drives a DC-DC converter that provides the necessary voltage to multiple strings of HB LEDs.

MAXREFDES111#: Isolated, 24V to 5V, 2W flyback power supply

This document details the MAXREFDES111# subsystem reference design, an 18V to 36V input, 5V/2W output, flyback isolated power supply. Design files and test results are included. Hardware is available for purchase.

Schematic PCB

KITFS4508CAEEVM: FS4508, System Basis Chip, ASIL B, Linear 0.5 A Vcore, FS1b, LDT, CAN

Schematic PCB

RDR-802 - 60W USB PD 3.0 with 3.3 V-21 V PPS power supply based on InnoSwitch3-Pro and Weltrend WT6635P controller

Schematic PCB

MAXREFDES1204: Single-Output SEPIC Converter Using the MAX16990

The MAXREFDES1204 is a single-output SEPIC converter reference design developed using the MAX16990 controller. This reference design is rated to operate over a wide input voltage range from 6V to 18V. The design can deliver an output power of 24W at 12V. It is targeted for automotive applications.

MAX5066 Reference Design for High-Performance Systems

The MAX5066 high performance dual buck regulator provides outstanding performance. The reference design in this application note depicts a detailed solution with complete schematic, bill of materials, and load-transient-response scope photos.

CN0201

Complete 5 V single supply 8-channel multiplexed data acquisition system with integrated PGIA for industrial grade signals

Schematic PCB

Single LNB power and control IC based on LNBH25 DiSEqC 2.0 compliant

Single-channel LNB power and control IC based on LNBH25 and compliant with DiSEqC 2.0 standard

Schematic PCB

OM13071: LPCXpresso824-MAX circuit board for LPC82x series MCUs

LPCXpresso824-MAX circuit board for LPC82x series MCUs

Schematic PCB

OM40007: LPC54018 IoT module for LPC540xx series MCUs

The LPC54018 IoT module is a high-performance, self-sufficient microcontroller module that supports IEEE802.11 and is suitable for products based on the LPC540xx MCU series.

Schematic PCB

Step-down/inverting 3A, ±5V power supply with all-ceramic capacitor design

A MAX8538 dual synchronous buck controller supplies both +5V and -5V outputs at 3A. One controller operates as a synchronous rectified step-down (buck) converter while the second controller runs a transformer driven inverter. The circuit also features soft start and soft stop .

KITPF3000FRDMPGM: PF3000 programming board

The KITPF3000FRDMPGM Programming Board is an easy-to-use circuit board that allows the user to program the PF3000 power management IC. This programming board integrates the popular KL25Z Freedom circuit board. The Freedom circuit board serves as the interface between the GUI and the PF3000. The analog-to-digital converter (ADC) in the KL25Z Freedom board monitors the regulator's voltage via the GUI.

LNB power supply evaluation board based on LNBH26S

LNB power supply evaluation board based on LNBH26S

Schematic PCB

FRDM-GD3100EVM: Half-bridge evaluation board for GD3100

The Freedom KL25Z is MCU hardware for connecting a PC with SPIGen software to the SPI programmable registers of the GD3100 device on the FRDM-GD3100EVB

Schematic PCB

RDR-839 - 12W power supply for home appliances using TinySwitch-4

Schematic PCB

Hipoink: Small open source e-paper display updated and wirelessly powered via NFC (schematic and source code)

HiPo is a 3.52-inch e-paper display module the size of a business card. Content is uploaded via NFC via a convenient app, no batteries required. The development board can compile different display functions by editing the code.

Schematic PCB

Wide input range 3W power supply reference design with four outputs

This reference design is a tiny 3-W auxiliary power supply reference design driving four outputs – two of them isolated to power some drivers.  The wide input range is 6 V to 60 V, so 1:10 - here a discrete LDO is needed to expand BIAS voltage for controller LM51551. For lowest EMI, a SEPIC topology is used to ensure low reflected ripple and to avoid RF ringing at the switch node. The control loop is closed on the primary side to save additional cost of optoisolator. Dual feedback allows any weighted feedback in between 3.3-V / 11-V outputs.

Schematic PCB

MAXREFDES1244: 88% Efficient Tiny, 5V/1.2A, Photoless Flyback DC-DC Converter Based on the MAX17690

The MAXREFDES1244 is a No-Opto Flyback converter that delivers up to 1.2A at 5V from a 18V to 54V supply voltage. It is designed for industrial equipment that needs isolated voltage from wide input supply voltage.

Schematic PCB

FRDM-K28F: NXP for Kinetis ^{® K27 and K28 MCUs}Freedom development board

FRDM-K28F is a low-cost development board for Kinetis K27 and K28 high-performance microcontrollers based on Arm Cortex-M4.

Long string LED boost driver (using aluminum electrolytic capacitors)

The long strings of LEDs commonly found in TV and display backlighting, street lights, and parking garage lights require a current driver capable of producing high voltages. This reference design provides such a driver using the MAX16834, and demonstrates how very-high dimming ratios can be obtained.