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ADP3050ARZ-5 Datasheet (PDF) - Analog Devices

ADP3050ARZ-5 Datasheet PDF - Analog Devices
Part No. ADP3050ARZ-5
Download  ADP3050ARZ-5 Click to view

File Size   354.63 Kbytes
Page   20 Pages
Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices
Description 200 kHz, 1 A High Voltage Step-Down Switching Regulator

ADP3050ARZ-5 Datasheet (PDF)

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ADP3050ARZ-5 Datasheet PDF - Analog Devices

Part No. ADP3050ARZ-5
Download  ADP3050ARZ-5 Click to view

File Size   354.63 Kbytes
Page   20 Pages
Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices
Description 200 kHz, 1 A High Voltage Step-Down Switching Regulator

ADP3050ARZ-5 Datasheet (HTML) - Analog Devices

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ADP3050ARZ-5 Product details

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



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