LTC3372IUH#TRPBF - 60V Low IQ Buck Controller | Analog Devices
MPN: LTC3372IUH#TRPBF β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $8.5 | $8.50 |
| 10 | $7.65 | $76.50 |
| 100 | $6.8 | $680.00 |
| 500 | $6.12 | $3,060.00 |
| 1,000 | $5.5 | $5,500.00 |
Drop-in alternatives for LTC3372IUH#TRPBF β same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
No drop-in alternatives available for this product.
Request AlternativesLTC3372IUH#TRPBF Maximum Ratings & Electrical Characteristics
| Input Voltage Range | 4.5 V to 60 V |
| Number of Outputs | 5 (1 HV controller + 4 LV regulators) |
| Output Type | Adjustable |
| Switching Frequency | [DATA_NEEDED: Switching frequency range] |
| Quiescent Current | Low (exact value [DATA_NEEDED: Quiescent current]) |
| Package | 48-QFN (7x7 mm) |
| Mounting Type | Surface Mount |
| Operating Temperature Range | -40Β°C to 125Β°C (junction) |
| RoHS Status | Compliant |
| REACH Status | Compliant |
| AEC-Q100 Qualified | No |
| Lead-Free | Yes |
| Halogen-Free | Yes |
| Synchronous Rectification | Yes |
| Control Architecture | Current Mode |
| Protection Features | Overcurrent, Thermal Shutdown, UVLO |
LTC3372IUH#TRPBF Pin Configuration
| Pin 1 | HVIN β High-voltage input supply |
| Pin 2 | HVSW β High-voltage switch node |
| Pin 3 | HVG1 β High-side gate drive |
| Pin 4 | HVG2 β Low-side gate drive |
| Pin 5 | VCC β Internal supply |
| Pin 6 | GND β Ground |
| Pin 7 | LVIN1 β Low-voltage input 1 |
| Pin 8 | LVSW1 β Low-voltage switch node 1 |
| Pin 9 | LVFB1 β Low-voltage feedback 1 |
| Pin 10 | LVIN2 β Low-voltage input 2 |
| Pin 11 | LVSW2 β Low-voltage switch node 2 |
| Pin 12 | LVFB2 β Low-voltage feedback 2 |
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
LTC3372IUH#TRPBF is suitable for 6 applications: Automotive Power Systems, Industrial Control Equipment, Energy Harvesting Systems, Portable and Battery-Powered Devices, Networking and Communication Equipment, Test and Measurement Instruments.
Automotive Power Systems
The LTC3372IUH#TRPBF is ideal for automotive power systems due to its wide 4.5V to 60V input range, which handles load dump and cold crank transients. The multiple outputs can power microcontrollers, sensors, and communication interfaces from a single 12V or 24V battery bus. The low quiescent current helps meet standby power requirements, and the high efficiency reduces thermal stress in the engine compartment. The device's robust protection features ensure reliable operation in harsh automotive environments.
Recommended
Industrial Control Equipment
In industrial control systems, the LTC3372IUH#TRPBF provides multiple regulated rails from a 24V or 48V bus, powering PLCs, motor controllers, and sensors. The high-voltage controller can step down the bus voltage efficiently, while the four low-voltage regulators supply logic and analog circuits. The wide input range accommodates voltage sags and surges, and the low quiescent current is beneficial for always-on systems. The device's programmable features allow optimization for different load profiles.
Recommended
Energy Harvesting Systems
The LTC3372IUH#TRPBF is well-suited for energy harvesting systems where input voltage varies widely, such as solar panels or thermoelectric generators. Its low quiescent current maximizes the usable power from the harvester, and the high efficiency ensures minimal losses. The multiple outputs can power sensors, microcontrollers, and wireless transceivers. The wide input range allows direct connection to the harvester output without additional conditioning, simplifying the design.
Recommended
Portable and Battery-Powered Devices
For portable devices, the LTC3372IUH#TRPBF offers low quiescent current to extend battery life and multiple outputs to power different subsystems. The high-voltage controller can handle input from a variety of battery chemistries, while the low-voltage regulators provide clean rails for digital and analog circuits. The compact 48-QFN package saves board space, and the high efficiency reduces heat generation in handheld devices.
Recommended
Networking and Communication Equipment
In networking equipment, the LTC3372IUH#TRPBF can generate multiple rails from a 48V telecom bus, powering processors, FPGAs, and transceivers. The high-voltage controller efficiently steps down the 48V input, while the low-voltage regulators supply core and I/O voltages. The low quiescent current is beneficial for line cards that must meet standby power regulations. The device's multiple outputs reduce the number of separate converters, saving board space and cost.
Recommended
Test and Measurement Instruments
The LTC3372IUH#TRPBF is used in test and measurement equipment to provide clean, stable power rails for precision analog circuits and digital logic. The low noise and high PSRR of the LV regulators ensure accurate measurements, while the high-voltage controller can handle input from various power sources. The multiple outputs allow a single IC to power an entire instrument, simplifying design and improving reliability.
Recommended
Recommended Products Summary
Engineering reference data for LTC3372IUH#TRPBF β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | LTC3372IUK#TRPBF | LTC3372EUH#TRPBF | LTC3372IUH#PBF |
|---|---|---|---|---|
| Package | 48-QFN (7x7) | 48-QFN (7x7) | 48-QFN (7x7) | 48-QFN (7x7) |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| Input Voltage Range | 4.5V to 60V | 4.5V to 60V | 4.5V to 60V | 4.5V to 60V |
| Number of Outputs | 5 | 5 | 5 | 5 |
| Operating Temperature Range | -40Β°C to 125Β°C | -40Β°C to 125Β°C | 0Β°C to 85Β°C | -40Β°C to 125Β°C |
| Packaging | Tape & Reel | Tape & Reel | Tape & Reel | Tube |
| RoHS | Compliant | Compliant | Compliant | Compliant |
| Quiescent Current | Low (exact value [DATA_NEEDED]) | Low (exact value [DATA_NEEDED]) | Low (exact value [DATA_NEEDED]) | Low (exact value [DATA_NEEDED]) |
Key Differentiators
- Wide input voltage range up to 60V (vs LTC3370IUH#TRPBF)
- Five outputs including a high-voltage controller (vs LTC3370IUH#TRPBF)
- Low quiescent current for battery-powered applications (vs LTC3370IUH#TRPBF)
Design Notes
For the high-voltage controller, keep the switching node (HVSW) trace short and wide to minimize parasitic inductance. Place the high-side and low-side MOSFETs close to the IC and use a solid ground plane. For the low-voltage regulators, use separate input capacitors close to each LVIN pin to reduce noise coupling.
The LTC3372 in a 48-QFN package can dissipate significant power when operating at high input voltages and load currents. Ensure adequate copper area on the PCB connected to the exposed pad to improve thermal performance. Consider airflow or a heatsink if the total power dissipation exceeds 2W.
Do not exceed the absolute maximum input voltage of 60V on the HVIN pin. Ensure the bootstrap capacitor for the high-side gate driver is properly sized and placed. Also, verify that the feedback resistors for each output are correctly connected to the respective FB pins to avoid incorrect output voltages.
Compliance Information
RoHS and REACH compliant per distributor data. Not AEC-Q100 qualified.
