LTC3372MPUH#TR - 60V Low IQ Buck Controller + 4-Channel 8A Configurable Buck DC/DCs | Analog Devices
MPN: LTC3372MPUH#TR ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $12.5 | $12.50 |
| 10 | $11.25 | $112.50 |
| 100 | $10 | $1,000.00 |
| 500 | $9 | $4,500.00 |
| 1,000 | $8.1 | $8,100.00 |
Drop-in alternatives for LTC3372MPUH#TR — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
LTC3372EUH#TR
✅ Drop-In📋 Reference alternative (not in catalog)
LTC3372IUH#TR
✅ Drop-In📋 Reference alternative (not in catalog)
LTC3372MPUH#PBF
✅ Drop-In✓ In Stock
$7.9 / Unit
View Datasheet →LTC3372EUH#PBF
✅ Drop-In✓ In Stock
$8.1 / Unit
View Datasheet →LTC3372IUH#PBF
✅ Drop-In✓ In Stock
$8.15 / Unit
View Datasheet →LTC3372MPUH#TR Maximum Ratings & Electrical Characteristics
| Input Voltage Range (HV Controller) | 4.5 V to 60 V |
| Number of LV Buck Converters | 4 |
| Total Output Current (LV) | 8 A |
| Output Current per Channel | Configurable up to 8 A |
| Switching Frequency | [DATA_NEEDED: switching frequency] |
| Quiescent Current | Low IQ (exact value [DATA_NEEDED: quiescent current]) |
| Operating Junction Temperature | -40°C to 125°C |
| Package | 44-pin QFN |
| Mounting Type | Surface Mount |
| Control Architecture | Current Mode |
| External FETs | All N-Channel |
| Protection Features | Overcurrent, Overtemperature |
| RoHS Status | Compliant |
| REACH Status | Compliant |
| MSL Level | [DATA_NEEDED: MSL level] |
LTC3372MPUH#TR Pin Configuration
| Pin 1 | HVIN — High-voltage input for controller |
| Pin 2 | HVGATE — Gate drive for external N-channel FET |
| Pin 3 | HVFB — Feedback for HV controller |
| Pin 4 | LVIN1 — Input for LV buck converter 1 |
| Pin 5 | LVSW1 — Switch node for LV buck 1 |
| Pin 6 | LVFB1 — Feedback for LV buck 1 |
| Pin 7 | LVIN2 — Input for LV buck converter 2 |
| Pin 8 | LVSW2 — Switch node for LV buck 2 |
| Pin 9 | LVFB2 — Feedback for LV buck 2 |
| Pin 10 | LVIN3 — Input for LV buck converter 3 |
| Pin 11 | LVSW3 — Switch node for LV buck 3 |
| Pin 12 | LVFB3 — Feedback for LV buck 3 |
| Pin 13 | LVIN4 — Input for LV buck converter 4 |
| Pin 14 | LVSW4 — Switch node for LV buck 4 |
| Pin 15 | LVFB4 — Feedback for LV buck 4 |
| Pin 16 | GND — Ground |
| Pin 17 | EN — Enable pin |
| Pin 18 | MODE — Mode selection |
| Pin 19 | SYNC — External clock sync |
| Pin 20 | VCC — Internal supply |
Safe Operating Area (SOA) & Thermal Characteristics
No official SOA curve available for this component. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.
Typical Applications
LTC3372MPUH#TR is suitable for 6 applications: Industrial Power Supplies, Automotive Infotainment, Telecom Equipment, Distributed Power Architectures, Battery-Powered Systems, FPGA Power Solutions.
Industrial Power Supplies
The LTC3372MPUH#TR's 60V input capability and multiple outputs make it ideal for industrial power supplies that need to generate multiple rails from a high-voltage bus. Its high efficiency reduces heat dissipation, and the configurable outputs allow flexible voltage/current combinations. The wide temperature range ensures reliable operation in factory environments.
Recommended
Automotive Infotainment
In automotive infotainment systems, the LTC3372MPUH#TR provides multiple regulated rails for processors, displays, and audio from a 12V battery. Its wide input range handles load dumps and cranking conditions, while the low quiescent current supports always-on features. The -40°C to 125°C temperature range meets automotive requirements.
Recommended
Telecom Equipment
Telecom equipment often operates from 48V backplanes, and the LTC3372MPUH#TR's 60V input directly handles this. It generates multiple low-voltage rails for FPGAs, ASICs, and line cards. The high efficiency reduces cooling requirements, and the configurable outputs adapt to different board designs.
Recommended
Distributed Power Architectures
The LTC3372MPUH#TR is well-suited for distributed power architectures where a high-voltage bus is stepped down to multiple point-of-load rails. Its HV controller drives external FETs for high-power conversion, while the integrated LV converters handle lower-power rails. This reduces component count and improves efficiency.
Recommended
Battery-Powered Systems
With its low quiescent current, the LTC3372MPUH#TR is suitable for battery-powered systems that require multiple rails, such as portable instruments. The wide input range accommodates battery voltage variations, and the high efficiency extends battery life. The configurable outputs allow optimization for different load profiles.
Recommended
FPGA Power Solutions
FPGAs require multiple voltage rails (core, I/O, auxiliary) with precise sequencing. The LTC3372MPUH#TR provides up to four configurable outputs that can be sequenced to meet FPGA power-up requirements. Its high efficiency and small footprint make it ideal for dense FPGA boards.
Recommended
Recommended Products Summary
Engineering reference data for LTC3372MPUH#TR — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | LTC3372EUH#TR | LTC3372IUH#TR | LTC3372MPUH#PBF |
|---|---|---|---|---|
| Package | 44-pin QFN | 44-pin QFN | 44-pin QFN | 44-pin QFN |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| Temperature Grade | -40°C to 125°C | 0°C to 85°C | -40°C to 85°C | -40°C to 125°C |
| Lead-Free | Yes (RoHS) | Yes | Yes | Yes |
| Input Voltage Range | 4.5V to 60V | 4.5V to 60V | 4.5V to 60V | 4.5V to 60V |
| Number of Outputs | 1 HV + 4 LV | 1 HV + 4 LV | 1 HV + 4 LV | 1 HV + 4 LV |
| Total Output Current | 8A (LV) | 8A | 8A | 8A |
| Quiescent Current | Low IQ | Low IQ | Low IQ | Low IQ |
Key Differentiators
- Extended temperature range (-40°C to 125°C) (vs LTC3372EUH#TR)
- High-voltage controller with 60V input (vs LTC3372EUH#TR)
- Low quiescent current for battery operation (vs LTC3372EUH#TR)
Design Notes
For the high-current LV buck converters, use wide copper traces and multiple vias for the switch nodes and ground. Place input and output capacitors close to the IC pins to minimize parasitic inductance. The HV controller's gate drive traces should be short and direct to the external FETs to reduce ringing.
The LTC3372MPUH#TR can dissipate significant power when delivering 8A from the LV converters. Ensure adequate thermal vias under the exposed pad and a sufficient copper area for heat spreading. For high ambient temperatures, consider forced airflow or a heatsink.
Do not exceed the absolute maximum input voltage of 60V on the HV pin. Ensure the external FETs are rated for the maximum input voltage and have appropriate gate drive. The feedback resistors for each output must be placed close to the IC to avoid noise pickup.
Compliance Information
RoHS and REACH compliant per Analog Devices product page. Not AEC-Q100 qualified; for automotive, verify with manufacturer.
