ADP3050ARZ-5集成電路（IC）的穩(wěn)壓器-DC-DC開關穩(wěn)壓器規(guī)格書PDF中文資料

ADP3050ARZ-5屬于集成電路（IC）的穩(wěn)壓器-DC-DC開關穩(wěn)壓器。由亞德諾半導體技術有限公司制造生產的ADP3050ARZ-5穩(wěn)壓器 - DC-DC 開關穩(wěn)壓器DC-DC 開關穩(wěn)壓器 PMIC（電源管理集成電路）產品族中的產品是元器件級設備，用于需要穩(wěn)定 DC 輸入電壓和/或將其轉換為不同幅度的輸出電壓的應用。這些器件與稱為“控制器”PMIC 的類似產品的區(qū)別在于集成了主開關元件，設備提供的電力會通過該元件。

GENERAL DESCRIPTION

The ADP3050 is a current mode monolithic buck (step down) PWM switching regulator that contains a high current 1 A power switch and all control, logic, and protection functions. It uses a unique compensation scheme allowing the use of any type of output capacitor (tantalum, ceramic, electrolytic, OS-CON). Unlike some buck regulators, the design is not restricted to using a specific type of output capacitor or ESR value.

A special boosted drive stage is used to saturate the NPN power switch, providing a system efficiency higher than conventional bipolar buck switchers. Further efficiency improvements are obtained by using the low voltage regulated output to provide the internal operating current of the device. A high switching frequency allows the use of small external surface-mount components. A wide variety of standard off-the-shelf devices can be used, providing a great deal of design flexibility. A complete regulator design requires only a few external components.

The ADP3050 includes a shutdown input that places the device in a low power mode, reducing the total supply current to under 20 μA. Internal protection features include thermal shutdown circuitry and a cycle-by-cycle current limit for the power switch to provide complete device protection under fault conditions.

The ADP3050 provides excellent line and load regulation, maintaining typically less than ±3 output voltage accuracy over temperature and under all input voltage and output current conditions.

The ADP3050 is specified over the industrial temperature range of ?40°C to +85°C and is available in a thermally enhanced 8-lead (not Pb-free only) SOIC package and a standard 8-lead (Pb-free only) RoHS-compliant SOIC package.

FEATURES

? Wide input voltage range: 3.6 V to 30 V

? Adjustable and fixed (3.3 V, 5 V) output options

? Integrated 1 A power switch

? Uses small surface-mount components

? Cycle-by-cycle current limiting

? Peak input voltage (100 ms): 60 V

? Configurable as a buck, buck-boost, and SEPIC regulator

? Available in 8-lead SOIC package

? Supported by ADIsimPower? design tool

APPLICATIONS

?Industrial power systems

?PC peripheral power systems

?Preregulator for linear regulators

?Distributed power systems

?Automotive systems

?Battery chargers