LT3976IUDD#PBF Analog Devices Integrated Circuit (Quad Flat No-Lead) In Stock
Analog Devices LT3976IUDD#PBF is a 42 V, 5 A synchronous step-down switching regulator operating at up to 2 MHz with ultra-low 3.4 µA quiescent current for battery-powered applications. Current-mode PWM control with 4.3 V to 40 V input range delivers high efficiency in a compact 24-pin QFN package. Available from stock worldwide with competitive pricing.
- Manufacturer
- Analog Devices
- Package
- Quad Flat No-Lead
- Pin Count
- 24
- Lifecycle
- ACTIVE
- Datasheet
- LT3976IUDD#PBF Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $5.6700(MOQ 1)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of LT3976IUDD#PBF?
- Ultra-low 3.4 µA quiescent current with 4.3 V to 40 V input range ideal for always-on battery-powered systems
- 5 A output current at up to 2 MHz switching frequency enabling high-efficiency compact power designs
- Current-mode PWM control in a 24-pin QFN package for fast transient response and minimal external component count
What is LT3976IUDD#PBF used for?
The LT3976IUDD#PBF is well-suited for battery-powered portable instruments, IoT sensor nodes, and automotive subsystems requiring efficient DC-DC step-down conversion from wide input supplies up to 40 V. Its 3.4 µA quiescent current minimizes standby power loss, extending battery life in applications with light or intermittent loads. The 2 MHz switching frequency allows the use of small inductors and capacitors, supporting compact power module designs in industrial and automotive electronics.
What are the specifications of LT3976IUDD#PBF?
| Pbfree Code | No |
| Manufacturer Package Code | 05-08-1833 |
| YTEOL | 10 |
| Analog IC - Other Type | SWITCHING REGULATOR |
| Control Mode | CURRENT-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 40V |
| Input Voltage-Min | 4.3V |
| JESD-30 Code | R-PQCC-N24 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Output Current-Max | 12.5A |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | LCC24,.12X.2,20 |
| Package Shape | RECTANGULAR |
| Package Style | CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE |
| Peak Reflow Temperature (Cel) | 260 |
| Surface Mount | YES |
| Switcher Configuration | BUCK |
| Switching Frequency-Max | 2700kHz |
| Technology | BIPOLAR |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | NO LEAD |
| Terminal Pitch | 0.5mm |
| Terminal Position | QUAD |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Quad Flat No-Lead |
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 | Thailand |
Where can I find the LT3976IUDD#PBF datasheet?
LT3976IUDD#PBF Datasheet DownloadOfficial datasheet from Analog Devices
What are equivalent replacements for LT3976IUDD#PBF?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What input voltage range and output current does the LT3976IUDD#PBF support?
The LT3976IUDD#PBF operates from an input voltage range of 4.3 V to 40 V and can deliver up to 5 A of continuous output current. Switching at up to 2 MHz, it enables the use of small passive components while maintaining efficiency. The 24-pin QFN package keeps PCB area compact for industrial and automotive power supply designs.
How does the 3.4 µA quiescent current of LT3976IUDD#PBF benefit battery-powered IoT applications?
With only 3.4 µA quiescent current, the LT3976IUDD#PBF draws negligible standby power when the system is in sleep mode, which is critical for IoT sensors running on coin cells or small Li-ion batteries. In a device cycling 1% duty with a 100 mAh cell, the regulator's standby current contributes less than 0.034 mAh per hour, significantly extending operational life compared to regulators with milliamp-range quiescent currents.
Why is the LT3976IUDD#PBF a strong choice for automotive 12 V to 5 V step-down conversion versus discrete MOSFET designs?
The LT3976IUDD#PBF integrates current-mode PWM control, internal MOSFETs capable of 5 A, and protection features in a single 24-pin QFN, eliminating the discrete gate driver, sense resistor, and multiple FETs typically required. Its 4.3 V to 40 V input range comfortably handles automotive battery voltages from 6 V cold-crank to 40 V load-dump transients, with 2 MHz switching minimizing filter size to sub-µH inductance values.
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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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| 1+ | $12.4800 | $12.48 |
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