ADP1108AR-5

$0.45

Description：IC REG BUCK BOOST 5V 8SOIC
Series：ADP1108
Mfr：Analog Devices Inc.
Package：Bulk

SKU:bef0cf091ea1 Category: Voltage Regulators - DC DC Switching Regulators Brand: Analog Devices Inc.

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Product introduction

Product Detailed Parameters

Description：IC REG BUCK BOOST 5V 8SOIC
Series：ADP1108
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)：2V
Voltage - Input (Max)：30V
Voltage - Output (Min/Fixed)：5V
Voltage - Output (Max)：-
Current - Output：-
Frequency - Switching：19kHz
Synchronous Rectifier：No
Operating Temperature：0°C ~ 70°C
Mounting Type：Surface Mount
Package / Case：8-SOIC (0.154", 3.90mm Width)
Supplier Device Package：8-SOIC
Grade：-
Qualification：-

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ADP1108AR-5

Overview

The ADP1108AR-5 is a micropower switch-mode DC/DC converter manufactured by Analog Devices Inc. It operates from an input voltage supply ranging from 2.0 V to 30 V and typically starts up from 1.8 V. The device delivers a fixed output voltage of 5 V with an internal power switch capable of handling up to 1 A. It consumes only 110 µA of supply current, making it suitable for battery-powered applications. The component supports both step-up (boost) and step-down (buck) mode operations. It is housed in an 8-pin SOIC package.

Feature Summary

Operates in both step-up and step-down modes with minimal external components
Features an internal 1 A power switch for efficient energy conversion
Includes a low battery detector comparator for system monitoring
Provides on-chip user-adjustable current limit protection

Applications

Notebook and palm top computer logic power supplies
3 V to 5 V and 5 V to 12 V converter circuits
9 V to 5 V and 12 V to 5 V converter circuits
LCD bias generators
Cellular telephones and portable instruments

Procurement Notes

Verify the specific suffix 'AR-5' against the manufacturer's official datasheet to confirm the fixed 5 V output variant and SOIC-8 package configuration. Ensure compatibility with the required input voltage range of 2.0 V to 30 V for your design. Cross-reference the pinout and thermal characteristics with the latest Analog Devices documentation before finalizing procurement.

Selection Notes

Select this component when a versatile, low-quiescent-current regulator is needed for portable electronics. It is appropriate for designs requiring either boost or buck topology without additional control ICs. Consider the 110 µA supply current for battery life optimization. Verify that the 1 A internal switch meets the peak load requirements of the target application.

Part Context

The ADP1108 series belongs to Analog Devices' family of micropower DC/DC converters. These devices are designed to replace linear regulators in battery-operated systems to improve efficiency. The ADP1108AR-5 specifically provides a fixed 5 V output, distinguishing it from adjustable versions within the same product line. It shares core architecture features like the internal power switch and low standby current with other variants.