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LT3090IMSE#TRPBF

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IC REG LIN NEG ADJ 600MA 12MSOP

Part Number: LT3090IMSE#TRPBF

Manufacturer: Analog Devices Inc.

Category: Voltage Regulators - Linear, Low Drop Out (LDO) Regulators

Package: 12-TSSOP (0.118", 3.00mm Width) Exposed Pad

Datasheet:: LT3090IMSE#TRPBF.pdf

Description: IC REG LIN NEG ADJ 600MA 12MSOP

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PRODUCT INFORMATION

Product Details

PRODUCT TECHNICAL REFERENCE

LT3090IMSE#TRPBF –36V, 600mA, Negative Linear Regulator with Programmable Current Limit

A comprehensive technical overview of the LT3090IMSE#TRPBF, a 600mA, low dropout negative linear regulator from Analog Devices featuring programmable current limit and precision current monitoring. Covers device function, core features, electrical specifications, 12-lead MSOP package, pin configuration, typical applications, and replacement selection guidance.

Analog Devices / Linear Technology 12-Lead MSOP (MSE) –1.5V to –36V Input

Device Classification 600mA Negative Linear Regulator with Programmable Current Limit

Part Number: LT3090IMSE#TRPBF

Mounting Type: Surface Mount

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

PRODUCT OVERVIEW

What Is the LT3090IMSE#TRPBF?

LT3090IMSE#TRPBF is a 600mA, low dropout negative linear regulator from Analog Devices (formerly Linear Technology) featuring programmable current limit and precision current monitoring. Designed with a precision current reference followed by a high performance rail-to-rail voltage buffer, this regulator is easily parallelable to increase output current or spread heat on surface mounted boards[reference:0].

The LT3090IMSE#TRPBF generates a wide output voltage range (0V to –32V) while maintaining unity gain operation, yielding virtually constant bandwidth, load regulation, PSRR and noise, regardless of the programmed output voltage[reference:1]. The device supplies 600mA at a typical dropout voltage of 300mV. Operating quiescent current is nominally 1mA and drops to less than 1µA in shutdown[reference:2].

A single resistor adjusts the LT3090's precision programmable current limit[reference:3]. The positive or negative current monitor either sources a current (0.5mA/A) or sinks a current (1mA/A) proportional to output current[reference:4]. Built-in protection includes reverse output protection, internal current limit with foldback and thermal shutdown with hysteresis[reference:5].

600mA Output Current Low dropout voltage of 300mV typical with wide input range from –1.5V to –36V[reference:6][reference:7].

Programmable Current Limit Single resistor sets current limit with ±8% accuracy over temperature[reference:8][reference:9].

Precision Current Monitoring Positive (0.5mA/A) or negative (1mA/A) output current monitor[reference:10][reference:11].

DEVICE HIGHLIGHTS

Key Features and Benefits of LT3090IMSE#TRPBF

600mA Output with Low Dropout

Delivers 600mA with typical dropout voltage of 300mV. Wide input voltage range from –1.5V to –36V and output adjustable from 0V to –32V[reference:12][reference:13].

Programmable Current Limit

Single resistor sets the current limit with 10A•kΩ scale factor and ±8% accuracy over temperature. If unused, tie ILIM to IN for internal protection[reference:14].

Precision Current Monitor

Positive current monitor sources 0.5mA/A; negative current monitor sinks 1mA/A proportional to output current[reference:15].

Wide Output Range & Low Noise

Rail-to-rail output from 0V to –32V with 18µVRMS output noise (10Hz–100kHz) and 50µA SET pin current (±1% initial accuracy)[reference:16][reference:17][reference:18].

Low Quiescent & Shutdown Current

1mA operating quiescent current typical; shutdown current drops to less than 1µA[reference:19].

Thermally Enhanced Package

Available in 12-lead MSOP (MSE) with exposed pad connected to IN. θJA = 33°C/W[reference:20].

REFERENCE DATA

Technical Specifications for LT3090IMSE#TRPBF

Part Number	LT3090IMSE#TRPBF	Manufacturer	Analog Devices (Linear Technology)
Device Type	600mA Negative Linear Regulator with Programmable Current Limit	Output Current	600mA[reference:21]
Input Voltage Range	–1.5V to –36V[reference:22]	Output Voltage Range	0V to –32V[reference:23]
Dropout Voltage @ 600mA	300mV Typical, 450mV Max[reference:24]	Dropout Voltage @ 100mA	195mV Typical, 270mV Max[reference:25]
SET Pin Current	50µA ±1% Initial Accuracy[reference:26][reference:27]	Output Noise (10Hz–100kHz)	18µVRMS[reference:28][reference:29]
PSRR @ 120Hz	70dB[reference:30]	PSRR @ 1MHz	20dB[reference:31]
Load Regulation (1mA–600mA)	1.2mV Typical[reference:32]	Line Regulation	1.5µV/V Typical[reference:33]
Quiescent Current	1mA Typical[reference:34]	Shutdown Current	<1µA[reference:35]
Current Limit Scale Factor	10A•kΩ[reference:36]	Current Monitor (Positive)	0.5mA/A[reference:37]
Current Monitor (Negative)	1mA/A[reference:38]	Minimum Output Capacitor	4.7µF (ESR < 0.5Ω)[reference:39][reference:40]
Minimum Load Current	10µA[reference:41]	Package	12-Lead MSOP (MSE) with Exposed Pad[reference:42]
Mounting Type	Surface Mount	Operating Temperature (I-Grade)	-40°C to +125°C[reference:43]
Junction Temperature (Max)	150°C[reference:44]	Storage Temperature	-65°C to +150°C[reference:45]
Thermal Resistance θJA (MSOP)	33°C/W[reference:46]	Thermal Resistance θJC (MSOP)	8°C/W[reference:47]
Packaging	Tape & Reel[reference:48]	Device Marking	3090[reference:49]

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 LT3090IMSE#TRPBF

Output Voltage Programming

The LT3090IMSE#TRPBF output voltage is programmed with a single resistor from SET to GND[reference:50]:

Output Voltage Formula: V_OUT = –I_SET × R_SET, where I_SET = 50µA (typical)[reference:51]
Output Range: 0V to –32V[reference:52]
SET Pin Current Accuracy: ±1% initial accuracy[reference:53]
Example: R_SET = 49.9kΩ gives V_OUT = –2.5V[reference:54]

PCB and Power-Supply Guidance

Negative regulator performance depends on layout, bypassing, and component selection:

Place a minimum 4.7µF output capacitor with ESR less than 0.5Ω as close to OUT and GND as possible[reference:55]
Input bypass capacitor of 2.2µF to 4.7µF generally suffices[reference:56]
Connect a capacitor from SET to GND (C_SET) to improve transient response, PSRR, noise and soft-start[reference:57]
The exposed pad (Pin 13) is IN and must be soldered to the PCB[reference:58]
Kelvin connect the ILIM resistor to the IN pins for best current limit accuracy[reference:59]
Thermal resistance θJA = 33°C/W for the MSOP package[reference:60]

12-LEAD MSOP (MSE)

Pin Configuration Reference for LT3090IMSE#TRPBF

3090

MSOP (MSE) TOP VIEW

Confirm package orientation and pin numbering against the official package drawing before PCB layout. The MSE package has 12 pins with exposed pad (Pin 13) connected to IN[reference:61].

1 IN Negative Input Supply Voltage[reference:62]

2 IN Negative Input Supply Voltage[reference:63]

3 IN Negative Input Supply Voltage[reference:64]

4 ILIM Programmable Current Limit Pin - Connect Resistor to IN[reference:65]

5 IMONP Positive Current Monitor - Sources 0.5mA/A[reference:66]

6 IMONN Negative Current Monitor - Sinks 1mA/A[reference:67]

7 SHDN Bidirectional Shutdown - ±1.4V Threshold[reference:68]

8 SET Output Voltage Program and Noise Reduction Pin[reference:69]

9 GND Ground - Supplies Quiescent Current[reference:70]

10 OUT Regulated Output Voltage[reference:71]

11 OUT Regulated Output Voltage[reference:72]

12 OUT Regulated Output Voltage[reference:73]

APPLICATION AREAS

Typical Applications for LT3090IMSE#TRPBF

Post Regulator for Switching Supplies

Clean up noisy switching regulator outputs with low noise and high PSRR[reference:74].

Low Noise Instrumentation and RF Supplies

18µVRMS output noise provides clean power for sensitive analog and RF circuits[reference:75].

Rugged Industrial Supplies

Robust protection features including current limit foldback and thermal shutdown[reference:76].

Precision Power Supplies

±1% SET pin current accuracy and excellent load regulation[reference:77].

Parallelable for Higher Current

Easily parallel multiple regulators to increase output current or spread heat[reference:78].

Configurable as 3-Terminal Floating Regulator

Flexible configuration options for diverse applications[reference:79].

REPLACEMENT GUIDANCE

Selecting an Alternative for LT3090IMSE#TRPBF

A replacement for the LT3090IMSE#TRPBF should not be selected only by product category. The electrical characteristics, package, and pin configuration must be evaluated against the actual circuit requirements.

Output current capability (600mA)[reference:80]

Input voltage range (–1.5V to –36V)[reference:81]

Output voltage range (0V to –32V)[reference:82]

Output noise (18µVRMS)[reference:83]

Programmable current limit[reference:84]

Current monitor (positive/negative)[reference:85]

Package (12-lead MSOP or 10-lead DFN)[reference:86]

Temperature range (I-Grade: –40°C to 125°C)[reference:87]

Family alternatives: LT3090EDD#TRPBF (E-Grade, –40°C to 125°C, DFN package), LT3090IDD#TRPBF (I-Grade, DFN package), LT3090HDD#TRPBF (H-Grade, –40°C to 150°C, DFN), LT3090MPDD#TRPBF (MP-Grade, –55°C to 150°C, DFN), LT3090EMSE#TRPBF (E-Grade, MSOP), LT3090HMSE#TRPBF (H-Grade, MSOP), LT3090MPMSE#TRPBF (MP-Grade, MSOP)[reference:88]. For higher performance negative regulators, consider the LT3094 (500mA, 0.8µVRMS noise)[reference:89]. Select based on temperature range, package, and packaging needs.

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MANUFACTURER INFORMATION

Analog Devices / Linear Technology

The LT3090 (LT3090IMSE#TRPBF) belongs to the negative linear regulator portfolio of Linear Technology, now part of Analog Devices. The family is designed for applications requiring precision output, high current with no heat sink, output adjustability to zero and low dropout voltage[reference:90].

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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: LT3090IMSE#TRPBF

Manufacturer: Analog Devices Inc.

Package: 12-TSSOP (0.118", 3.00mm Width) Exposed Pad

Series: -

Package/Case: 12-TSSOP (0.118", 3.00mm Width) Exposed Pad

Packaging: Tape & Reel (TR)

Product Status: Active

Output Configuration: Negative

Output Type: Adjustable

Number of Regulators: 1

Voltage - Input (Max): -36V

Voltage - Output (Min/Fixed): 0V

Voltage - Output (Max): -32V

Voltage Dropout (Max): 0.45V @ 600mA

Current - Output: 600mA

Current - Quiescent (Iq): 50.5 µA

Current - Supply (Max): -

PSRR: 85dB ~ 20dB (120Hz ~ 1MHz)

Control Features: Current Limit, Enable

Protection Features: Over Current, Over Temperature, Reverse Polarity, Short Circuit

Operating Temperature: -40°C ~ 125°C

Grade: -

Qualification: -

Mounting Type: Surface Mount

Supplier Device Package: 12-MSOP-EP

Frequently Asked Questions

1. How can I order LT3090IMSE#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 LT3090IMSE#TRPBF?

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

3. Are the stock and price of LT3090IMSE#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?

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5. How is international shipping arranged?

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6. What is the return or replacement process for LT3090IMSE#TRPBF?

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7. Can I request technical support for LT3090IMSE#TRPBF?

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

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Part Number: LT3090IMSE#TRPBF

Manufacturer: Analog Devices Inc.

Package: 12-TSSOP (0.118", 3.00mm Width) Exposed Pad

Category: Voltage Regulators - Linear, Low Drop Out (LDO) Regulators

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