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Product Detailed Parameters
- Description：IC LED DRVR RGLTR 350MA SOT23-5
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：DC DC Regulator
- Topology：Step-Up (Boost)
- Internal Switch(s)：Yes
- Number of Outputs：1
- Voltage - Supply (Min)：2.2V
- Voltage - Supply (Max)：7V
- Voltage - Output：21V
- Current - Output / Channel：350mA (Switch)
- Frequency：-
- Dimming：-
- Applications：Backlight
- Operating Temperature：-40°C ~ 125°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：SC-74A, SOT-753
- Supplier Device Package：SOT-23-5
- Grade：-
- Qualification：-
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Overview
The LM2703MF-ADJ is a micropower step-up DC/DC converter manufactured by Texas Instruments. It features a 350mA peak current limit and operates within an input voltage range of 2.2V to 7V. The device utilizes a small 5-lead SOT-23 package and supports adjustable output voltages. It functions as a boost converter with off-time control to conserve operating current. The component is rated for operation between -40°C and 85°C.
Feature Summary
- Micropower step-up DC/DC converter topology
- Integrated 350mA peak current limit
- Small 5-lead SOT-23 surface mount package
Applications
- LCD backlight drivers
- Portable electronic devices requiring micropower conversion
- Battery-powered systems needing step-up regulation
Procurement Notes
Verify the specific suffix (e.g., NOPB) for RoHS compliance status, as availability varies. Confirm lifecycle status, as some variants are marked obsolete. Ensure the ordering part number matches the required temperature grade and package type. Cross-reference datasheets for exact electrical characteristics before integration.
Selection Notes
Select this component for applications requiring low quiescent current and compact footprint. The adjustable output allows flexibility in setting target voltages. Consider the 350mA peak limit when sizing external inductors and capacitors. Verify input voltage ranges align with the power source, specifically noting the 2.2V minimum requirement.
Part Context
This part belongs to the LM2703 series of micropower step-up converters. It is designed for portable applications where space and power efficiency are critical. The series includes fixed and adjustable output variants, all sharing the core boost architecture and current limiting protection mechanisms.
Replacement Considerations
Check for direct substitutes like LM2703MFX-ADJ/NOPB which share similar specifications. Verify pin compatibility and thermal performance if replacing with other SOT-23-5 boost converters. Ensure the replacement maintains the required 350mA peak current capability.
