Key facts
- Brand
- Linear Technology
- Model
- LT3692A
- Category
- Power Management
- Documents
- 2
- Languages
- EN
- Last added
- 2012-06-05
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Linear Technology LT3692A Dual 3A Buck Converter Datasheet
The LT3692A is a monolithic dual 3A step-down converter designed to simplify DC/DC conversion in automotive, industrial, and distributed power systems. It features a wide input voltage range from 3V to 36V and includes overvoltage transient protection up to 60V. The device offers flexible configuration options, allowing designers to power it from one or two separate inputs while producing two independent outputs or parallelized high-current supplies.
Key design features include completely independent channels with programmable undervoltage lockout (UVLO) and overvoltage lockout (OVLO). The converter supports adjustable switching frequencies between 250kHz and 2.25MHz, which can be synchronized across multiple regulators via a clock output pin. Additional protections include soft-start to eliminate input current surges, internal thermal shutdown, and programmable power good outputs for system sequencing.
Linear Technology LT3692A specifications
| Input Voltage Range | 6V to 32V (operating), up to 36V max |
|---|---|
| Transient Voltage Capability | 60V for 1 second |
| Switching Frequency (Channel 1) | 400kHz |
| Temperature Monitor Sensitivity | 250mV per 25°C (10mV/°C) |
| Max Die Temperature | 80°C |
| Comparator Threshold | 720mV with hysteresis |
| Current Limit Range | 2A to 4.8A |
All Linear Technology LT3692A documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What is the operating input voltage range for this converter?
The device operates with an input voltage ranging from 3V to 36V.
From: Linear Technology LT3692A Dual 3A Buck Converter Datasheet
What is the maximum input voltage for the LT3692A?
The device can operate up to an input voltage of 36V.
How does the on-die temperature monitor work?
The voltage at the TJ pin is directly proportional to the die temperature in Celsius, where 250mV equals 25°C.