LTC3372EUK#TRPBF Analog Devices Integrated Circuit (Quad Flat No-Lead) In Stock
The LTC3372EUK#TRPBF is a five-output automotive-grade step-down DC/DC controller supporting 2A, 2A, and up to 20A outputs at 2.1 MHz switching frequency. Input voltage range spans 4.5V to 60V. Available in a 48-pin QFN EP package with worldwide stock and shipping.
- Manufacturer
- Analog Devices
- Package
- Quad Flat No-Lead
- Pin Count
- 48
- Lifecycle
- ACTIVE
- Datasheet
- LTC3372EUK#TRPBF Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $7.8700(MOQ 1)
- Temp Range
- ?°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Quintuple-output step-down controller with 2A/2A/20A capability for complex automotive power trees
- 4.5V to 60V input voltage range tolerates automotive cold-crank and load-dump transients
- 2.1 MHz switching frequency reduces filter size and avoids AM radio interference bands
- Current-mode PWM control for fast transient response and cycle-by-cycle current limiting
- Integrated 5V fixed auxiliary output simplifies bias and logic supply generation
Applications
The LTC3372EUK#TRPBF is designed for automotive ADAS, infotainment, and body control module power systems that require multiple regulated outputs from a 12V or 48V vehicle battery. Its wide 4.5V to 60V input handles load-dump transients, and the 2.1 MHz switching frequency keeps EMI out of sensitive AM bands. Industrial multi-rail systems in factory automation and telematics units with high 20A load requirements also benefit from this controller.
Specifications
| Pbfree Code | No |
| Manufacturer Package Code | 05-08-1704 |
| Date Of Intro | 2018-05-29 |
| YTEOL | 10 |
| Additional Feature | ALSO HAS 5V FIXED O/P VOLATGE; O/P CURRENT CONSIDERED FOR BUCK WITH 1 POWER STAGE |
| Analog IC - Other Type | SWITCHING CONTROLLER |
| Control Mode | CURRENT-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 60V |
| Input Voltage-Min | 4.5V |
| Input Voltage-Nom | 12V |
| JESD-30 Code | S-PQCC-N48 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Output Current-Max | 2.2A |
| Output Voltage-Max | 3.383V |
| Output Voltage-Min | 3.217V |
| Output Voltage-Nom | 3.3V |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | SQUARE |
| Package Style | CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE |
| Surface Mount | YES |
| Switcher Configuration | BUCK |
| Switching Frequency-Max | 2250kHz |
| Technology | CMOS |
| Temperature Grade | OTHER |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | NO LEAD |
| Terminal Pitch | 0.5mm |
| Terminal Position | QUAD |
| 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 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How does the LTC3372EUK#TRPBF handle automotive load-dump transients up to 60V?
The LTC3372EUK#TRPBF tolerates input voltages from 4.5 V up to 60 V, which comfortably covers the ISO 7637 load-dump transient of up to 40 V on a 12 V automotive bus. Current-mode PWM control with cycle-by-cycle limiting protects the power stage during sudden load or input voltage changes, while internal soft-start ramps outputs smoothly over 4096 switching cycles.
What output current can the high-current channel of the LTC3372EUK#TRPBF deliver, and which loads is that suited for?
The high-current channel supports up to 20 A output, sufficient for powering ADAS SoC processors, GPU accelerators in automotive hardware, or large FPGA cores that demand 20 A or more at 1.0 V to 1.8 V. The two 2 A channels and fixed 5 V output serve lower-power peripherals such as sensors, CAN transceivers, and memory in the same system.
Why does the 2.1 MHz switching frequency of the LTC3372EUK#TRPBF matter in automotive infotainment systems?
Operating at 2.1 MHz places the switching harmonics well above the AM radio band of 540 kHz to 1.7 MHz, reducing the risk of radiated EMI interference with onboard AM receivers. Smaller inductors and capacitors—typically 1 µH to 4.7 µH and 10 µF to 47 µF—are sufficient at this frequency, saving PCB area and BOM cost compared to 400 kHz converters.
How does the 48-pin QFN EP package benefit thermal management in a dense automotive power module?
The 48-pin QFN EP package includes an exposed thermal pad that reduces junction-to-board thermal resistance to approximately 20°C/W, enabling the LTC3372EUK#TRPBF to dissipate heat efficiently through the PCB copper pour without a bulky heatsink. The compact 7 mm × 7 mm footprint allows placement near output capacitors, shortening high-current traces and reducing parasitic resistance at 20 A.
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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 |
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| 1+ | $10.5500 | $10.55 |
| 19+ | $10.4300 | $198.17 |
| 1000+ | $7.8700 | $7870.00 |
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