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Product Detailed Parameters
- Description:IC REG BUCK BOOST 3.3V 8SOIC
- Series:ADP1073
- Mfr:Analog Devices Inc.
- Package:Bulk
- Function:Step-Up/Step-Down
- Output Configuration:Positive
- Topology:Buck-Boost
- Output Type:Fixed
- Number of Outputs:1
- Voltage - Input (Min):1V
- Voltage - Input (Max):30V
- Voltage - Output (Min/Fixed):3.3V
- Voltage - Output (Max):-
- Current - Output:-
- Frequency - Switching:19kHz
- Synchronous Rectifier:No
- Operating Temperature:-
- Mounting Type:Surface Mount
- Package / Case:8-SOIC (0.154", 3.90mm Width)
- Supplier Device Package:8-SOIC
- Grade:-
- Qualification:-
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Overview
The ADP1073AR-3.3 is a micropower DC-DC converter manufactured by Analog Devices Inc., designed for step-up and step-down voltage regulation. It operates from an input supply voltage ranging from 1.0 V to 30 V, enabling use with single-cell battery sources. The device features a fixed 3.3 V output voltage and includes an internal 1 A power switch. Key electrical characteristics include a ground current of 100 mA and operation in both boost and buck modes. It is housed in an 8-lead SOIC package.
Feature Summary
- Operates in step-up or step-down mode with few external components required
- Includes an internal 1 A power switch and on-chip user-adjustable current limit
- Features a low battery detector for monitoring supply levels
Applications
- Single-cell to 5 V converters
- Laptop and palmtop computers
- Cellular telephones
- Portable instruments
Procurement Notes
Verify the specific suffix AR-3.3 against official Analog Devices documentation to confirm the fixed 3.3 V output configuration and SOIC-8 packaging. Ensure compatibility with system input voltage ranges (1.0 V to 30 V) and load requirements (up to 1 A internal switch). Check for end-of-life status or obsolescence notices prior to procurement.
Selection Notes
Select this component when designing systems requiring flexible input voltages from a single cell up to 30 V. It is suitable for applications needing both buck and boost capabilities with minimal external circuitry. Consider the 100 mA ground current and 1 A switch limit when sizing thermal management and load expectations.
Part Context
The ADP1073 belongs to a family of micropower switching regulators that support adjustable and fixed output voltages. This series is engineered for portable electronics where space and efficiency are critical. The AR-3.3 variant specifically provides a stable 3.3 V rail, simplifying design for digital logic and peripheral interfaces.
Replacement Considerations
Consult Analog Devices datasheets for direct pin-compatible alternatives within the ADP1073 or ADP11xx families. Verify that substitute parts maintain the 1.0 V to 30 V input range and 1 A switch capability.
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