LT3990HMSE-5#PBF Analog Devices Integrated Circuit (Small Outline Packages) In Stock

Name: LT3990HMSE-5#PBF
Brand: Analog Devices
SKU: LT3990HMSE-5#PBF
Availability: InStock

Analog Devices LT3990HMSE-5#PBF is a 62 V input, 350 mA step-down switching regulator with an ultralow 2.5 µA quiescent current and integrated catch diodes. Fixed 5 V output uses current-mode PWM control for fast transient response in a 16-pin MSOP package. Available from stock worldwide.

ACTIVEIntegrated CircuitVerified Jun 2026

Package / Visual Reference

LT3990HMSE-5#PBFSmall Outline Packages

Quick Facts

Manufacturer: Analog Devices
Package: Small Outline Packages
Pin Count: 16
Lifecycle: ACTIVE
Datasheet: LT3990HMSE-5#PBF Datasheet PDF
Category: Integrated Circuit
Price: From $4.3400(MOQ 1)
Temp Range: -40.0°C to 150.0°C
RoHS: Compliant
Lead Time: 3–7 business days
Shipping: DHL Express · Worldwide

What are the key features of LT3990HMSE-5#PBF?

62 V maximum input voltage supports direct regulation from automotive 48 V or industrial 24 V bus rails
2.5 µA ultralow quiescent current extends standby battery life in always-on monitoring systems
Integrated catch diodes reduce external component count to simplify layout and shrink BOM cost

What is LT3990HMSE-5#PBF used for?

The LT3990HMSE-5#PBF is designed for always-on power supplies in automotive, industrial, and building automation systems that draw from high-voltage bus rails up to 62 V. Its 2.5 µA quiescent current makes it particularly effective in sleep-mode regulation for telematics units, remote sensors, and smart metering equipment. The integrated diode and 16-pin MSOP package enable compact, high-efficiency 5 V buck converters with minimal external passives.

What are the specifications of LT3990HMSE-5#PBF?

Pbfree Code	No
Manufacturer Package Code	05-08-1667
YTEOL	10
Analog IC - Other Type	SWITCHING REGULATOR
Control Mode	CURRENT-MODE
Control Technique	PULSE WIDTH MODULATION
Input Voltage-Max	62V
Input Voltage-Min	4.2V
Input Voltage-Nom	12V
JESD-30 Code	R-PDSO-G16
JESD-609 Code	e3
Number of Functions	1
Output Current-Max	0.865A
Output Voltage-Max	9.1V
Output Voltage-Min	4.9V
Output Voltage-Nom	5V
Package Body Material	PLASTIC/EPOXY
Package Shape	RECTANGULAR
Package Style	SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH
Peak Reflow Temperature (Cel)	260
Surface Mount	YES
Switcher Configuration	BUCK
Switching Frequency-Max	2760kHz
Technology	BIPOLAR
Temperature Grade	AUTOMOTIVE
Terminal Finish	Matte Tin (Sn) - annealed
Terminal Form	GULL WING
Terminal Pitch	0.5mm
Terminal Position	DUAL
Time@Peak Reflow Temperature-Max (s)	30
Package	Small Outline Packages

Compliance & Regulatory

RoHS Status	Compliant
Lead-Free	Yes (Pb-Free)
Moisture Sensitivity Level	MSL 1
ECCN	EAR99
HTS Code	8542.39.00.01
Country of Origin	Malaysia

Where can I find the LT3990HMSE-5#PBF datasheet?

LT3990HMSE-5#PBF Datasheet Download

Official datasheet from Analog Devices

What are equivalent replacements for LT3990HMSE-5#PBF?

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

Frequently Asked Questions

How does the 2.5 µA quiescent current of the LT3990HMSE-5#PBF benefit automotive always-on applications?

At 2.5 µA quiescent current from a 12 V automotive battery, the LT3990HMSE-5#PBF dissipates only 30 µW in standby mode. Over a 30-day parked vehicle period, this corresponds to roughly 21.6 mAh drawn from the battery versus hundreds of milliamp-hours for conventional regulators, preserving cold-start margin and extending battery service life significantly.

Can the LT3990HMSE-5#PBF directly regulate a 48 V hybrid vehicle bus to 5 V logic supply?

Yes. The LT3990HMSE-5#PBF accepts input voltages from 4.2 V up to 62 V, comfortably covering the 48 V mild-hybrid bus. It delivers a fixed 5 V output at up to 350 mA, sufficient for powering CAN transceivers, microcontrollers, and gateway logic directly from the 48 V rail without an intermediate pre-regulator, simplifying the power architecture.

What advantages do the integrated catch diodes in the LT3990HMSE-5#PBF offer for PCB layout?

Integrating the catch diode eliminates the need for an external Schottky diode, saving approximately 1 to 2 mm2 of PCB area per converter channel and reducing the BOM by one part. The co-packaged diode also shortens the high-frequency switching loop within the 16-pin MSOP package, lowering EMI and improving efficiency by reducing parasitic inductance compared to a discrete external diode placed millimeters away.

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About Analog Devices

Analog Devices (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing integrated circuits used in virtually all types of electronic equipment.

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AvailabilityIn Stock

Reference Price (USD)

From $4.3400

Buy from 1pc · Factory-direct pricing

Qty.	Unit Price	Ext. Price
1+	$4.9569	$4.96
1000+	$4.3400	$4340.00

pcs

Unit price: $4.9569 · Total: $4.96

In Stock · 24h Response · Worldwide Shipping

Direct Contact

WhatsApp Inquiry Email RFQ

Lead Time3-7 business days

MOQFrom 1 piece

ShippingDHL / FedEx / UPS

OriginChina (Authorized)

Response within 24 hours · Worldwide shipping

“The anti-counterfeit verification gave us confidence we'd never had with other China suppliers.”

Rajesh Patel

Procurement Manager, VoltEdge Energy, India

LT3990HMSE-5#PBF Analog Devices Integrated Circuit (Small Outline Packages) In Stock

What are the key features of LT3990HMSE-5#PBF?

What is LT3990HMSE-5#PBF used for?

What are the specifications of LT3990HMSE-5#PBF?

Compliance & Regulatory

Where can I find the LT3990HMSE-5#PBF datasheet?

What are equivalent replacements for LT3990HMSE-5#PBF?

Frequently Asked Questions

How does the 2.5 µA quiescent current of the LT3990HMSE-5#PBF benefit automotive always-on applications?

Can the LT3990HMSE-5#PBF directly regulate a 48 V hybrid vehicle bus to 5 V logic supply?

What advantages do the integrated catch diodes in the LT3990HMSE-5#PBF offer for PCB layout?

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