LT3976IMSE#PBF Analog Devices Integrated Circuit (Small Outline Packages) In Stock
LT3976IMSE#PBF is a 42 V input, 5 A step-down switching regulator from Analog Devices with 2 MHz switching frequency and an ultra-low 3.4 µA quiescent current for always-on systems. It supports 4.3 V to 40 V input range with current-mode PWM control in a 16-lead MSOP-E package. Available in stock with worldwide shipping.
- Manufacturer
- Analog Devices
- Package
- Small Outline Packages
- Pin Count
- 16
- Lifecycle
- ACTIVE
- Datasheet
- LT3976IMSE#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
Key Features
- 3.4 µA quiescent current enables ultra-low standby power consumption, extending battery life in always-on IoT and automotive applications
- 5 A output current at up to 2 MHz switching frequency allows compact inductor and capacitor selection for high-density power designs
- Wide 4.3 V to 40 V input range with current-mode PWM control provides fast transient response and stable regulation across automotive and industrial voltage rails
Applications
LT3976IMSE#PBF is ideal for automotive systems, industrial equipment, and IoT devices requiring efficient 5 A step-down regulation from wide-range 4.3 V to 40 V inputs while maintaining sub-4 µA standby current in sleep modes. Its 2 MHz switching frequency enables miniaturized filter components and reduces switching noise in RF-sensitive designs such as telematics units and wireless sensor nodes. Engineers also deploy it in 24 V industrial rail applications where always-on monitoring circuits must minimize battery drain.
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 | 40V |
| Input Voltage-Min | 4.3V |
| JESD-30 Code | R-PDSO-G16 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Output Current-Max | 12.5A |
| 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 | 2700kHz |
| Technology | BIPOLAR |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Matte Tin (Sn) |
| 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
What input voltage range and output current does LT3976IMSE#PBF support?
LT3976IMSE#PBF accepts input voltages from 4.3 V to 40 V (42 V absolute maximum) and delivers up to 5 A continuous output current. This wide input range covers automotive 12 V and 24 V battery systems with load-dump transients up to 40 V, as well as industrial 24 V rails. At full 5 A load, the current-mode PWM architecture maintains tight output regulation within ±1% across the entire input range.
How does the 3.4 µA quiescent current of LT3976IMSE#PBF benefit battery-powered designs?
At 3.4 µA quiescent current, LT3976IMSE#PBF draws negligible power from a 12 V automotive battery during vehicle sleep mode. A 50 Ah battery draining at 3.4 µA would take over 14 million hours to discharge — effectively zero standby drain in practice. This enables always-on monitoring systems such as car alarms, keyless entry controllers, and remote sensors to operate for years on a battery without a separate ultra-low-power sleep regulator.
At which switching frequency does LT3976IMSE#PBF operate, and how does this affect passive component sizing?
LT3976IMSE#PBF operates at up to 2 MHz switching frequency, which allows inductor values as small as 2.2 µH to 4.7 µH and output capacitance below 22 µF for a 5 A, 5 V output stage. Compared to a 200 kHz design requiring a 22 µH to 47 µH inductor, the 2 MHz option reduces inductor volume by 10x and PCB area proportionally. This is critical for compact automotive ECU power stages where board space is measured in square millimeters.
Which control mode does LT3976IMSE#PBF use, and what transient response advantage does it provide?
LT3976IMSE#PBF uses current-mode pulse-width modulation (PWM) control, which senses inductor current cycle-by-cycle and inherently limits peak current to protect the 5 A output stage. Current-mode control also provides faster load transient response than voltage-mode regulators — typically recovering to within 50 mV of the set point within 5 µs for a 2 A load step. This fast response is essential for FPGA and processor core rails that demand tight voltage regulation during sudden switching activity.
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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 |
| 10+ | $8.5950 | $85.95 |
| 19+ | $7.5100 | $142.69 |
| 1000+ | $5.6700 | $5670.00 |
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