LM57BISD-5/NOPB Texas Instruments Integrated Circuit (Small Outline No-lead) In Stock

Name: LM57BISD-5/NOPB
Brand: Texas Instruments
SKU: LM57BISD-5/NOPB
Availability: InStock

Texas Instruments LM57BISD-5/NOPB is a precision temperature switch and sensor IC with ±1.5°C accuracy in a compact 2.5 mm x 2.5 mm SOT-23 no-lead package. Consumes only 28 µA maximum operating current for energy-sensitive designs.

OBSOLETEIntegrated CircuitVerified Jul 2026

Package / Visual Reference

LM57BISD-5/NOPBSmall Outline No-lead

Quick Facts

Manufacturer: Texas Instruments
Package: Small Outline No-lead
Pin Count: 9
Lifecycle: OBSOLETE
Datasheet: LM57BISD-5/NOPB Datasheet PDF
Category: Integrated Circuit
Price: From $1.2540(MOQ 25)
Temp Range: -50.0°C to 150.0°C
RoHS: Compliant
Lead Time: 3–7 business days
Shipping: DHL Express · Worldwide

What are the key features of LM57BISD-5/NOPB?

±1.5°C maximum accuracy for reliable over-temperature detection without external calibration
Ultra-low 28 µA maximum operating current enabling long battery life in portable systems
2.5 mm x 2.5 mm small outline no-lead package with 0.8 mm profile for space-constrained PCBs
Dual-threshold temperature switch with hysteresis for noise-immune thermal protection

What is LM57BISD-5/NOPB used for?

The LM57BISD-5/NOPB is used in battery-powered portable devices, wearables, and IoT sensor nodes where accurate over-temperature protection must be maintained with minimal current draw. Its ±1.5°C accuracy and small SOT-23 footprint make it practical for thermal management in laptop batteries, USB power banks, and medical monitoring equipment. Engineers also integrate it into industrial equipment for fan control and thermal shutdown triggering without microcontroller overhead.

What are the specifications of LM57BISD-5/NOPB?

YTEOL	0
Accuracy-Max (Cel)	1.5Cel
Body Breadth	2.5mm
Body Height	0.8mm
Body Length or Diameter	2.5mm
Housing	PLASTIC
Mounting Feature	SURFACE MOUNT
Operating Current-Max	0.028mA
Package Equivalence Code	SOLCC8,.09,20
Package Shape/Style	RECTANGULAR
Sensors/Transducers Type	TEMPERATURE SENSOR,SWITCH/DIGITAL OUTPUT,SINGLE TRIP POINT
Supply Voltage-Max	5.5V
Supply Voltage-Min	2.4V
Surface Mount	YES
Terminal Finish	Matte Tin (Sn)
Termination Type	SOLDER
Package	Small Outline No-lead

Compliance & Regulatory

RoHS Status	Compliant
Lead-Free	Yes (Pb-Free)
ECCN	EAR99
HTS Code	8542.39.00.01

Where can I find the LM57BISD-5/NOPB datasheet?

LM57BISD-5/NOPB Datasheet Download

Official datasheet from Texas Instruments

What are equivalent replacements for LM57BISD-5/NOPB?

No known alternates. Submit an RFQ and our team can suggest alternatives.

Frequently Asked Questions

How accurate is the LM57BISD-5/NOPB temperature sensing and what does that mean for thermal protection designs?

The LM57BISD-5/NOPB achieves ±1.5°C maximum accuracy, allowing designers to set threshold temperatures close to component limits without large safety margins. This precision reduces unnecessary thermal shutdown events in battery packs, motor drivers, and power converters operating across the full -40°C to +125°C range.

For a coin-cell-powered IoT node, how does LM57BISD-5/NOPB's current consumption compare to microcontroller-based temperature monitoring?

The LM57BISD-5/NOPB draws only 28 µA maximum continuously, eliminating the need to wake a microcontroller periodically for temperature checks. A typical MSP430 polling loop at 1-second intervals would consume significantly more average current, making the LM57BISD-5/NOPB the preferred choice for 5-year coin-cell lifetime targets.

Which PCB layout considerations apply when placing the LM57BISD-5/NOPB SOT-23 package near a heat-generating component?

The LM57BISD-5/NOPB SOT-23 package measures 2.5 mm x 2.5 mm with a 0.8 mm body height, so it should be placed within 3 mm to 5 mm of the monitored component for fast thermal coupling. Avoid placing it over thermal vias that sink heat away from the sensor die, and use copper pour on the bottom pad to improve thermal contact.

Can LM57BISD-5/NOPB replace an NTC thermistor plus comparator circuit in a simple fan-control application?

Yes, the LM57BISD-5/NOPB integrates the threshold comparison function with ±1.5°C accuracy, replacing an NTC thermistor, resistor divider, and op-amp comparator with a single 8-pin SOT-23 device. This reduces BOM count by at least 4 components and eliminates thermistor nonlinearity compensation from firmware.

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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.

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AvailabilityIn Stock

Reference Price (USD)

From $1.2540

Buy from 1pc · Factory-direct pricing

Qty.	Unit Price	Ext. Price
25+	$1.5960	$39.90
50+	$1.4360	$71.80
100+	$1.2540	$125.40

pcs

Unit price: $1.5960 · Total: $39.90

In Stock · 24h Response · Worldwide Shipping

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Lead Time3-7 business days

MOQFrom 1 piece

ShippingDHL / FedEx / UPS

OriginChina (Authorized)

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Procurement Manager, VoltEdge Energy, India

LM57BISD-5/NOPB Texas Instruments Integrated Circuit (Small Outline No-lead) In Stock

What are the key features of LM57BISD-5/NOPB?

What is LM57BISD-5/NOPB used for?

What are the specifications of LM57BISD-5/NOPB?

Compliance & Regulatory

Where can I find the LM57BISD-5/NOPB datasheet?

What are equivalent replacements for LM57BISD-5/NOPB?

Frequently Asked Questions

How accurate is the LM57BISD-5/NOPB temperature sensing and what does that mean for thermal protection designs?

For a coin-cell-powered IoT node, how does LM57BISD-5/NOPB's current consumption compare to microcontroller-based temperature monitoring?

Which PCB layout considerations apply when placing the LM57BISD-5/NOPB SOT-23 package near a heat-generating component?

Can LM57BISD-5/NOPB replace an NTC thermistor plus comparator circuit in a simple fan-control application?

Related Guides

STM32H725IGT3 Selection Guide: Memory, Package, Temperature, and Supply

STM32H725IGT3 High-Performance MCU Design Guide

150141VS73100 Violet SMD LED Selection Guide: Color, Drive, and Sourcing

STEF05SGR 5 V eFuse Protection Design Guide

Why Buy from FindMyChip

About Texas Instruments

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