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LT3092EST#TRPBF

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IC CURRENT SOURCE 1% SOT223-3

Part Number: LT3092EST#TRPBF

Manufacturer: Analog Devices Inc.

Category: Current Regulation/Management

Package: TO-261-4, TO-261AA

Datasheet:: LT3092EST#TRPBF.pdf

Description: IC CURRENT SOURCE 1% SOT223-3

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PRODUCT INFORMATION

Product Details

PRODUCT TECHNICAL REFERENCE

LT3092EST#TRPBF 200mA 2-Terminal Programmable Current Source

A comprehensive technical overview of the LT3092EST#TRPBF, a programmable 2-terminal current source from Analog Devices featuring 200mA output, 1.2V to 40V wide input range, and 1% initial accuracy. Covers device function, core features, electrical specifications, 3-lead SOT-223 package, pin configuration, typical applications, and replacement selection guidance.

Analog Devices / Linear Technology 3-Lead SOT-223 1.2V to 40V

Device Classification Programmable 2-Terminal Current Source

Part Number: LT3092EST#TRPBF

Mounting Type: Surface Mount

Operating Temperature Range: -40°C to +125°C

PRODUCT OVERVIEW

What Is the LT3092EST#TRPBF?

LT3092EST#TRPBF is a programmable 2-terminal current source from Analog Devices (formerly Linear Technology). It requires only two resistors to set an output current between 0.5mA and 200mA. A multitude of analog techniques lend themselves to actively programming the output current.[reference:0][reference:1]

The LT3092EST#TRPBF is stable without input and output capacitors, offering high DC and AC impedance. This feature allows operation in intrinsically safe applications.[reference:2][reference:3] The SET pin features 1% initial accuracy and low temperature coefficient. Current regulation is better than 10ppm/V from 1.5V to 40V.[reference:4][reference:5]

The device can operate in a 2-terminal current source configuration in series with signal lines. It is ideal for driving sensors, remote supplies, and as a precision current limiter for local supplies.[reference:6][reference:7] Internal protection circuitry includes reverse-battery and reverse-current protection, current limiting and thermal limiting.[reference:8][reference:9] The LT3092EST#TRPBF is offered in a 3-lead SOT-223 package and is rated for operation from –40°C to +125°C as an E-Grade device.[reference:10][reference:11]

Programmable 2-Terminal Current Source Two resistors set output current from 0.5mA to 200mA with 1% initial accuracy.[reference:12]

Wide Input Range & No Capacitors Required 1.2V to 40V operation with input/output capacitors not required.[reference:13][reference:14]

Comprehensive Protection Reverse-battery, reverse-current, current limit, and thermal limit protection for robust designs.[reference:15]

DEVICE HIGHLIGHTS

Key Features and Benefits of LT3092EST#TRPBF

Programmable 2-Terminal Current Source

Requires only two resistors to set an output current between 0.5mA and 200mA. A multitude of analog techniques can be used to actively program the output current.[reference:16]

Wide Input Voltage Range

Operates from 1.2V to 40V with current regulation better than 10ppm/V from 1.5V to 40V.[reference:17][reference:18]

High Accuracy & Stability

1% initial SET pin accuracy with low temperature coefficient. Stable without input and output capacitors, offering high DC and AC impedance.[reference:19]

Comprehensive Protection Features

Built-in reverse-battery protection, reverse-current protection, current limiting, and thermal limiting ensure robust operation in demanding environments.[reference:20]

3-Lead SOT-223 Package

Available in a 3-lead SOT-223 package with a 6.50mm × 3.50mm footprint, ideal for space-constrained designs.[reference:21][reference:22]

AEC-Q100 Qualified

Qualified for automotive applications with –40°C to +125°C operating temperature range.[reference:23][reference:24]

REFERENCE DATA

Technical Specifications for LT3092EST#TRPBF

Part Number	LT3092EST#TRPBF	Manufacturer	Analog Devices (Linear Technology)
Device Type	Programmable 2-Terminal Current Source	Output Current Range	0.5mA to 200mA[reference:25][reference:26]
Input Voltage Range	1.2V to 40V[reference:27][reference:28]	Initial Accuracy	1%[reference:29][reference:30]
Current Regulation	<10ppm/V from 1.5V to 40V[reference:31]	Line Regulation	<0.001%/V (Typical)[reference:32]
SET Pin Current	100µA[reference:33]	No. of Pins	3[reference:34]
Package / Case	SOT-223-3[reference:35]	Supplier Device Package	SOT-223-3[reference:36]
Package Body Size	6.50mm × 3.50mm	Package Height	1.70mm (Max)[reference:37]
Mounting Type	Surface Mount[reference:38]	Lead Shape	Gull-wing[reference:39]
Operating Temperature	-40°C to +125°C[reference:40][reference:41]	Qualification	AEC-Q100[reference:42][reference:43]
Moisture Sensitivity Level	MSL 1 - Unlimited[reference:44][reference:45]	RoHS	ROHS3 Compliant[reference:46]
SVHC	Lead (27-Jun-2024)[reference:47]	REACH Status	REACH Unaffected[reference:48]
Protection Features	Reverse-Battery, Reverse-Current, Current Limit, Thermal Limit[reference:49]	Packaging	Tape & Reel (2,000 per Reel)[reference:50]
Product Status	Active / Production[reference:51]	Device Marking	3092[reference:52]

Electrical values shown above are reference values. Test conditions, limits, and guaranteed performance should always be confirmed from the current official manufacturer datasheet before design or production use.

DESIGN REFERENCE

Circuit Considerations for LT3092EST#TRPBF

Output Current Programming

The LT3092EST#TRPBF output current is set with two external resistors:

Output Current Formula: I_OUT = 10µA × (R_SET / R_OUT)
Current Range: 0.5mA to 200mA[reference:53]
SET Pin Current: 100µA with 1% initial accuracy[reference:54][reference:55]
Resistor Ratio: The resistor ratio sets the output current, providing flexibility for various applications[reference:56]

PCB and Power-Supply Guidance

Current source performance depends on layout and component selection:

Input/Output Capacitors: Not required for stability, offering high DC and AC impedance[reference:57][reference:58]
2-Terminal Operation: Can operate in series with signal lines as a floating current source[reference:59]
Protection Features: Built-in reverse-battery and reverse-current protection, current limiting, and thermal limiting ensure robust operation[reference:60]
PCB Layout: Keep resistor traces short and close to the device for accurate current setting
Thermal Management: SOT-223 package with appropriate copper area for heat dissipation[reference:61]
Verify the recommended PCB footprint from the official datasheet before production

3-LEAD SOT-223

Pin Configuration Reference for LT3092EST#TRPBF

3092

SOT-223 TOP VIEW

Confirm package orientation and pin numbering against the official package drawing before PCB layout. The SOT-223 package has 3 pins. Device marking for the LT3092EST#TRPBF is "3092".[reference:62] The package has a large exposed tab connected to OUT.

1 OUT Current Source Output - Connect to load (Tab is also OUT)

2 IN Input Voltage - 1.2V to 40V

3 SET Current Program and Sense - Connect resistor to set output current

APPLICATION AREAS

Typical Applications for LT3092EST#TRPBF

2-Terminal Floating Current Source

Ideal for driving sensors, remote supplies, and precision current limiting in series with signal lines.[reference:63]

GND Referenced Current Source

Provides a stable current source referenced to ground for various analog applications.

Variable Current Source

A multitude of analog techniques can be used to actively program the output current.[reference:64]

In-Line Limiter

Acts as a precision current limiter for local supplies, providing overload protection.[reference:65]

Intrinsic Safety Circuits

Stable without input/output capacitors with high DC and AC impedance, allowing operation in intrinsically safe applications.[reference:66]

Automotive Systems

AEC-Q100 qualified for automotive applications requiring precise current sourcing.[reference:67]

REPLACEMENT GUIDANCE

Selecting an Alternative for LT3092EST#TRPBF

A replacement for the LT3092EST#TRPBF should not be selected only by product category. The electrical characteristics, package, and pin configuration must be evaluated against the actual circuit requirements. The following alternatives are documented in the official Analog Devices product pages and datasheets.

Output current range (0.5mA–200mA)[reference:68]

Input voltage range (1.2V–40V)[reference:69]

Initial accuracy (1%)[reference:70]

Package (3-lead SOT-223)[reference:71]

Temperature range (–40°C to 125°C)[reference:72]

AEC-Q100 qualification[reference:73]

2-terminal current source operation[reference:74]

Protection features (reverse-battery, reverse-current, current limit, thermal limit)[reference:75]

Family alternatives:

Part Number	Package	Packaging	Temperature Grade	Carrier Quantity
LT3092EST#TRPBF	3-Lead SOT-223	Tape & Reel	E-Grade (-40°C to 125°C)	2,000[reference:76]
LT3092EST#PBF	3-Lead SOT-223	Tube	E-Grade (-40°C to 125°C)	-
LT3092ETS8#TRPBF	8-Lead TSOT-23	Tape & Reel	E-Grade (-40°C to 125°C)	2,500
LT3092EDD#TRPBF	8-Lead DFN (3mm × 3mm)	Tape & Reel	E-Grade (-40°C to 125°C)	-
LT3092IDD#TRPBF	8-Lead DFN (3mm × 3mm)	Tape & Reel	I-Grade (-40°C to 125°C)	-

All alternative part numbers listed above are documented in the official Analog Devices product pages. The LT3092EST#TRPBF is the E-Grade (–40°C to 125°C) version in SOT-223 package with tape-and-reel packaging (2,000 units per reel).[reference:77] For tube packaging, consider LT3092EST#PBF. For different package options, consider the TSOT-23 (LT3092ETS8#TRPBF) or DFN (LT3092EDD#TRPBF) versions. Select based on package, packaging, and temperature grade needs.

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MANUFACTURER INFORMATION

Analog Devices / Linear Technology

The LT3092 (LT3092EST#TRPBF) belongs to the programmable current source portfolio of Linear Technology, now part of Analog Devices. The device is a programmable 2-terminal current source that requires only two resistors to set an output current between 0.5mA and 200mA.[reference:78] The device is designed for driving sensors, remote supplies, and as a precision current limiter for local supplies.[reference:79]

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Technical Information Disclaimer

This technical guide is provided for product identification and preliminary reference only. Electrical limits, package dimensions, pin configuration, product status, and application suitability must be verified using current official manufacturer documentation before design, procurement, or production.

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Specifications

Product Attribute: Attribute Value

Part Number: LT3092EST#TRPBF

Manufacturer: Analog Devices Inc.

Package: TO-261-4, TO-261AA

Series: -

Package/Case: TO-261-4, TO-261AA

Packaging: Tape & Reel (TR)

Product Status: Active

Function: Current Source

Sensing Method: -

Accuracy: ±1%

Voltage - Input: 1.2V ~ 40V

Current - Output: 200mA

Operating Temperature: -40°C ~ 125°C (TJ)

Grade: -

Qualification: -

Mounting Type: Surface Mount

Supplier Device Package: SOT-223-3

Frequently Asked Questions

1. How can I order LT3092EST#TRPBF from Haishengye Electronics?

Submit an RFQ directly on this page with your required quantity, target price and delivery requirements. Our sales team will review the request and provide a quotation.

2. How does Haishengye Electronics verify the quality of LT3092EST#TRPBF?

We work with qualified suppliers and review sourcing channels, traceability, packaging and product condition before shipment.

3. Are the stock and price of LT3092EST#TRPBF updated in real time?

Electronic component inventory and prices may change frequently. Displayed values are references, and final stock and pricing will be confirmed in the quotation.

4. Which payment methods are supported?

Wire Transfer, PayPal, Alipay, WeChat, Credit Card, Western Union, MoneyGram and Escrow may be supported depending on the order and destination.

5. How is international shipping arranged?

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6. What is the return or replacement process for LT3092EST#TRPBF?

Contact our sales team within the agreed period if there are quantity differences, incorrect items or clear external defects. Products should remain unused and in their original packaging.

7. Can I request technical support for LT3092EST#TRPBF?

Yes. Contact our team for datasheets, package details, product specifications, alternative parts and sourcing assistance.

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Part Number: LT3092EST#TRPBF

Manufacturer: Analog Devices Inc.

Package: TO-261-4, TO-261AA

Category: Current Regulation/Management

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