ADP3050ARZ-3.3 Internal Power Switch Buck Regulators by Analog Devices

Internal Power Switch Buck Regulators
Status: Production
Series: ADP3050
RoHS: Compliant
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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.

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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

Frequently Asked Questions

Where can I find additional details, specifications and documents for a ADP3050ARZ-3.3?

Additional datasheets, footprints and schematics for ADP3050ARZ-3.3 are listed on our Part Details page. You can also find images and similar parts to ADP3050ARZ-3.3 on this page.

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What category does ADP3050ARZ-3.3 fall under?

The ADP3050ARZ-3.3 is listed under Internal Power Switch Buck Regulators.

Can I view similar or alternative parts?

You can view similar parts to ADP3050ARZ-3.3 when available in the Internal Power Switch Buck Regulators range under the specifications section at the bottom of the details page.

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Is the ADP3050ARZ-3.3 RoHS compliant?

Yes. This part has been flagged as RoHS Compliant by Analog Devices.

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