LM2937IMP-2.5 NOPB Texas Instruments Integrated Circuit (SOT223 (3-Pin)) In Stock
Texas Instruments LM2937IMP-2.5 NOPB is a 400 mA low-dropout linear voltage regulator with fixed 2.5 V output in SOT-223 package. Features low 600 mV dropout voltage and robust protection circuits. Available from major distributors with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- SOT223 (3-Pin)
- Pin Count
- 4
- Lifecycle
- ACTIVE
- Datasheet
- LM2937IMP-2.5 NOPB Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $1.2370(MOQ 3000)
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of LM2937IMP-2.5 NOPB?
- 400 mA output current capability with only 600 mV dropout voltage at full load, ideal for battery-powered and low-overhead applications
- Fixed 2.5 V output with tight ±2% initial accuracy, suitable for precision analog and reference circuits
- Built-in overcurrent, thermal shutdown, and reverse-battery protection ensure robust operation in demanding environments
What is LM2937IMP-2.5 NOPB used for?
The LM2937IMP-2.5 NOPB is well-suited for powering microcontrollers, sensors, and analog front-ends in portable and battery-operated devices where a stable 2.5 V rail is required. Its low dropout performance makes it ideal for single-cell Li-Ion or regulated bus supplies stepping down from 3.3 V to 2.5 V. It also fits automotive accessory circuits and industrial sensor nodes requiring reliable regulation with minimal thermal dissipation.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the LM2937IMP-2.5 NOPB datasheet?
LM2937IMP-2.5 NOPB Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for LM2937IMP-2.5 NOPB?
Compatible alternatives and drop-in replacements for LM2937IMP-2.5 NOPB:
Frequently Asked Questions
What is the maximum output current the LM2937IMP-2.5 NOPB can supply, and how does dropout voltage behave at that load?
The LM2937IMP-2.5 NOPB is rated for up to 400 mA continuous output current. At this maximum load, the dropout voltage is approximately 600 mV, meaning the input supply must be at least 3.1 V to maintain the regulated 2.5 V output. This low dropout characteristic makes it suitable for tight supply budgets.
Which battery-powered designs benefit most from using the LM2937IMP-2.5 NOPB instead of a standard LDO?
Designs powered by a single Li-Ion cell (nominally 3.7 V, discharging to about 3.0 V) benefit greatly because the 600 mV dropout allows full 2.5 V regulation down to near end-of-discharge. Applications include portable sensor nodes, BLE modules, and handheld instruments where extending runtime with a low-dropout 2.5 V rail at up to 400 mA is critical.
How does the SOT-223 package of the LM2937IMP-2.5 NOPB assist thermal management on a PCB?
The SOT-223 package provides a large exposed tab pin that can be soldered directly to a copper pour, giving a thermal resistance of approximately 40°C/W to the PCB. At 400 mA with a 600 mV dropout, the device dissipates roughly 240 mW, keeping junction temperature well below the 125°C maximum with minimal copper area.
What input voltage range is supported by the LM2937IMP-2.5 NOPB, and what protections are built in?
The LM2937IMP-2.5 NOPB operates with input voltages from approximately 3.1 V up to 26 V. It includes built-in overcurrent limiting, thermal shutdown activating near 150°C junction temperature, and reverse-battery protection, allowing safe use in automotive 12 V systems and other environments where supply transients or wiring errors are possible.
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Why Buy from FindMyChip
About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
More from Texas Instruments
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 3000+ | $1.2621 | $3786.30 |
| 5000+ | $1.2494 | $6247.00 |
| 7000+ | $1.2370 | $8659.00 |
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