Overview
The LT8606IMSE#PBF, produced by Analog Devices Inc., is a compact, high-efficiency, high-speed synchronous monolithic step-down switching regulator. This regulator is designed to operate with a wide input voltage range of 3.0V to 42V and can deliver up to 350mA of continuous output current. It is notable for its ultralow quiescent current of 1.7µA in non-switching mode, making it highly efficient, especially at low output currents. The LT8606 is available in various packages, including the 10-lead MSOP package, which is thermally enhanced and suitable for a variety of applications requiring high performance and low power consumption.
Key Specifications
| Parameter | Min | Typ | Max | Units |
|---|---|---|---|---|
| Input Voltage Range | 3.0 | - | 42 | V |
| Output Current | - | - | 350 | mA |
| Quiescent Current (VEN/UV = 0V) | 1 | 1.7 | 5 | µA |
| Operating Junction Temperature Range | -40 | - | 125 | °C |
| Switching Frequency Range | 200kHz | - | 2.2MHz | - |
| Output Ripple (Burst Mode) | - | - | 10mV P-P | - |
| Efficiency (12V to 5V, 350mA) | - | - | >92% | - |
| Package Type | - | - | 10-Lead MSOP | - |
Key Features
- Wide Input Voltage Range: 3.0V to 42V
- Ultralow Quiescent Current: 1.7µA in non-switching mode
- High Efficiency: Up to 92% efficiency at 350mA output current
- Low Ripple Burst Mode Operation: Output ripple below 10mV P-P
- Adjustable and Synchronizable Switching Frequency: 200kHz to 2.2MHz
- Spread Spectrum Frequency Modulation: For low EMI
- Fast Minimum Switch-On Time: 35ns
- Internal Compensation and Peak Current Mode Operation: Allows use of small inductors and ensures good loop stability
- Accurate 1V Enable Pin Threshold: For undervoltage lockout or shutdown
- Output Soft-Start and Tracking: Programmable via the TR/SS pin (MSOP package)
- AEC-Q100 Qualified for Automotive Applications: Suitable for automotive use
Applications
- General Purpose Step-Down Converters: Suitable for a wide range of step-down conversion needs
- Low EMI Step-Down Converters: Ideal for applications requiring low electromagnetic interference
- Automotive Systems: AEC-Q100 qualified, making it suitable for automotive applications
- Portable Electronics: High efficiency and low quiescent current make it ideal for battery-powered devices
- Industrial Power Supplies: Can be used in various industrial power supply applications requiring high efficiency and reliability
Q & A
- What is the input voltage range of the LT8606IMSE#PBF?
The input voltage range is from 3.0V to 42V.
- What is the maximum output current of the LT8606IMSE#PBF?
The maximum continuous output current is 350mA.
- What is the quiescent current of the LT8606IMSE#PBF in non-switching mode?
The quiescent current is 1.7µA in non-switching mode.
- What are the available package types for the LT8606IMSE#PBF?
The LT8606 is available in a 10-lead MSOP package and an 8-lead DFN package.
- Can the switching frequency of the LT8606IMSE#PBF be adjusted?
Yes, the switching frequency can be programmed from 200kHz to 2.2MHz using a resistor tied from the RT pin to ground.
- What is the purpose of the TR/SS pin in the MSOP package?
The TR/SS pin allows for programming the output voltage ramp rate during start-up and for output voltage tracking.
- Is the LT8606IMSE#PBF suitable for automotive applications?
Yes, it is AEC-Q100 qualified for automotive applications.
- How does the LT8606IMSE#PBF manage EMI?
The LT8606 uses spread spectrum frequency modulation to reduce electromagnetic interference (EMI).
- What is the efficiency of the LT8606IMSE#PBF at 350mA output current?
The efficiency is greater than 92% at 350mA output current for a 12V to 5V conversion.
- How does the LT8606IMSE#PBF handle output ripple in Burst Mode operation?
The output ripple in Burst Mode operation is below 10mV P-P.
