MAX20343HEFC+

EVALUATION KIT AVAILABLE Click here to ask about the production status of specific part numbers. MAX20343/MAX20344 Ultra-Low Quiescent Current, Low Noise 3.5W Buck-Boost Regulator General Description Benefits and Features The MAX20343/MAX20344 is an ultra-low quiescent current, non-inverting buck-boost converter with 1A current capability at 3.5V intended for applications that require lon...
развернуть ▼ свернуть ▲

Технические характеристики

показать свернуть
Корпус
Тип преобразователя
Входное напряжение
Выходное напряжение
Максимальный выходной ток
Ток собственного потребления
Рабочая температура
Нашли ошибку? Выделите её курсором и нажмите CTRL + ENTER

Файлы 1

показать свернуть
EVALUATION KIT AVAILABLE Click here to ask about the production status of specific part numbers. MAX20343/MAX20344 Ultra-Low Quiescent Current, Low Noise 3.5W Buck-Boost Regulator General Description Benefits and Features The MAX20343/MAX20344 is an ultra-low quiescent current, non-inverting buck-boost converter with 1A current capability at 3.5V intended for applications that require long run times while also demanding bursts of high current. The device employs a unique control algorithm which seamlessly transitions between buck, buck-boost, and boost modes, minimizing discontinuities and subharmonics in the output voltage ripple. The low 1.9V input voltage for startup allows users to power the device from a variety of sources, and the near-zero minimum operating voltage gives the user the ability to extract as much as possible from their energy source. The MAX20343/MAX20344 has also been designed to keep inductance and output capacitance requirements as low as possible for space-constrained applications. ● Extend System Run Time • Ultra-Low, 3.5µA (typ) Quiescent Current • 250mW Ouptut Power with 500mV Input Voltage • Dynamic Voltage Scaling (DVS) The MAX20343/MAX20344 is ideal for power in optical sensor applications as well as for powering radios in low power, wide area network (LPWAN) applications since in both cases noise must be minimal and efficiency must be high. For instance, the small light-load output voltage ripple allows a photoplethysmography (PPG) system to operate at low LED currents without interference. Additionally, seamless transitions between operating modes enables the use of dynamic voltage scaling (DVS) to minimize headroom on the LED and to save power in such systems. In applications where a low-power-density battery must be buffered by a super-capacitor to provide large LPWAN type bursts of current, the ultra-low operating voltage of the MAX20343/MAX20344 allows the user to extract as much energy as possible from the super capacitor. The low output inductance/capacitance requirement allows a small total solution size. For example in PPG systems, this provides the flexibility to place the MAX20343/ MAX20344 on a remote optical module if overcrowding on the main PCB is an issue. The MAX20343/MAX20344 is available with a highly configurable I2C serial interface or as a single-pin-enabled fixed-programming version. See Table 3 for specific device settings. MAX20343 operates over the -40°C to +85°C temperature range, is available in a 16-bump, 1.77mm x 2.01mm, 0.4mm pitch WLP package and a 12-pin, 2.50mm x 2.50mm, 0.5mm pitch FC2QFN package. MAX20344 operates over the -40°C to +125°C temperature range, and is available in a 12-pin, 2.50mm x 2.50mm, 0.5mm pitch FC2QFN package. Applications • Biometric Optical Sensing Including PPG • IoT • LPWAN (LTE/NB-IoT, LTE/Cat-M1) • Industrial Sensors 19-100516; Rev 8; 6/21 ● Low, Continuous Noise Profile • Eliminates Discontinuities Across Operating Voltage Range • Eliminates Post-Filtering LDO in Noise Sensitive Applications ● Adaptable Load Transient Response • Adjustable Peak Current for Optimal Performance in Each Application • Fast Load Transient Response Minimizes Settling Time • Optional Feedback Integrator • Enable for up to 3.5W Output Power Capabilities • Disable for up to 1.75W Output Power and Faster Load Transient Settling Time • FAST Pin Pretriggers Load Response and Offers Improved Load Transient ● Flexible Control Options • I2C Interface with Status Interrupts • EN and Status Pins, Single-Resistor VOUT Selection (RSEL) • See Table 3 for specific device defaults. ● Extended Operating Temperature from -40°C to +85°C (MAX20343), -40°C to +125°C (MAX20344) ● Optimally Sized for Small Applications • 16-bump, 1.77mm x 2.01mm, 0.4mm Pitch WLP • 12-pin, 2.50mm x 2.50mm, 0.5mm Pitch Flip-Chip QFN • Inductor/Capacitor Available in 0603/0402 Case Sizes Ordering Information appears at end of data sheet. PDF
Документация на семейство MAX20343 

Дата модификации: 01.01.1970

Размер: 1.64 Мб

43 стр.

    Публикации 1

    показать свернуть
    12 июля
    новость

    Преобразователи MAX20343/MAX20344 для портативных устройств с автономным питанием

    Компания Maxim Integrated освоила производство новых импульсных стабилизаторов напряжения MAX20343/MAX20344 для использования в компактных портативных устройствах с батарейным питанием. Микросхемы MAX20343/MAX20344 являются полностью... ...читать

    Внимание! Точность указанного на сайте описания товара не может быть гарантирована. Для получения более полной и точной информации о товаре смотрите техническое описание (Datasheet) на сайте производителя.