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Product Detailed Parameters
- Description：IC LED DRVR RGLTR 150MA SOT23-5
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT),Bulk
- 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：20V
- Current - Output / Channel：150mA
- Frequency：-
- Dimming：-
- Applications：Backlight
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：SC-74A, SOT-753
- Supplier Device Package：SOT-23-5
- Grade：-
- Qualification：-
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Overview
The LM2705MF-ADJ is a micropower step-up DC/DC converter manufactured by Texas Instruments. It operates within an input voltage range of 2.2V to 7V and provides a single adjustable output up to 20V. The device features a 150mA peak current limit and utilizes a fixed-off-time control architecture. It is housed in a compact 5-pin SOT-23 (DBV) package. The component supports an operating temperature range from -40°C to +125°C, ensuring reliability in various environmental conditions.
Feature Summary
- Micropower step-up DC/DC conversion capability
- Integrated 150mA peak current limit for protection
- Fixed-off-time control architecture
- Adjustable output voltage configuration
Applications
- Portable battery-powered devices
- LCD bias voltage generation
- Single-cell lithium-ion battery boost applications
- Low-power embedded systems
Procurement Notes
Verify the complete ordering part number, typically LM2705MF-ADJ/NOPB, to ensure compliance with lead-free manufacturing standards. Confirm the specific suffix indicates the tape-and-reel packaging format if required for automated assembly processes. Cross-reference the manufacturer's latest datasheet revision to validate pinout configurations and electrical characteristics against your design requirements before finalizing procurement.
Selection Notes
Select this component when designing circuits requiring a small footprint and low quiescent current for battery-operated applications. The adjustable output feature allows flexibility in setting the target voltage via external resistors. Ensure the load current does not exceed the 150mA peak limit to maintain stable operation. Consider the SOT-23 package constraints for thermal management and PCB layout space availability during the initial schematic capture phase.
Part Context
This component belongs to the LM2705 family of micropower converters from Texas Instruments. It is designed specifically for applications where space is limited and power efficiency is critical. The family focuses on providing reliable step-up functionality in minimal packages, catering to the needs of modern portable electronics that demand high performance from small form-factor power solutions.
Replacement Considerations
Check for LM2705 variants with different suffixes such as /NOPB for lead-free specifications. Verify compatibility with existing PCB footprints, as the SOT-23-5 package is standard across the series. Ensure substitute parts maintain similar electrical parameters, particularly the 150mA current limit and input voltage range, to avoid redesigning the feedback network.
