LT3990HMSE-5#PBF Analog Devices Integrated Circuit (Small Outline Packages) In Stock
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.
- 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
Key Features
- 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
Applications
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.
Specifications
| 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 |
Alternate & Equivalent Parts
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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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $4.9569 | $4.96 |
| 1000+ | $4.3400 | $4340.00 |
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