Overview
The LT8608EMSE#PBF from 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 offers an ultralow quiescent current of 1.7µA, making it highly suitable for power-efficient applications. The device is available in various package options, including the 10-lead MSOP and 8-lead DFN packages, each with different operational modes such as Burst Mode and pulse-skipping.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Units |
|---|---|---|---|---|---|
| Minimum Input Voltage | 2.5 | 3.0 | 3.2 | V | |
| Quiescent Current | VEN/UV = 0V, VSYNC = 0V | 1 | 1.7 | 4 | µA |
| Output Current | 1.5 | A | |||
| Operating Junction Temperature Range | –40°C | 125°C (E, I), 150°C (H) | °C | ||
| Switching Frequency | 200kHz | 2.2MHz | |||
| Efficiency | At 0.5A, 5VOUT from 12VIN | >92% | % |
Key Features
- High efficiency with >92% efficiency at 0.5A, 5VOUT from 12VIN.
- Ultralow quiescent current of 1.7µA, making it suitable for battery-powered devices.
- Wide input voltage range of 3.0V to 42V.
- Adjustable and synchronizable switching frequency from 200kHz to 2.2MHz.
- Spread Spectrum Frequency Modulation for low EMI.
- Peak current mode operation and fast minimum switch-on time of 35ns.
- Low dropout and allows the use of small inductors.
- Available in 10-lead MSOP and 8-lead DFN packages with different operational modes (Burst Mode, pulse-skipping).
Applications
- Battery-powered devices due to its ultralow quiescent current.
- Automotive systems requiring high input voltage range and efficiency.
- Industrial power supplies where high efficiency and low EMI are crucial.
- Portable electronics and handheld devices where power efficiency is a priority.
Q & A
- What is the input voltage range of the LT8608EMSE#PBF?
The input voltage range is 3.0V to 42V.
- What is the quiescent current of the LT8608EMSE#PBF?
The quiescent current is 1.7µA.
- What is the maximum output current of the LT8608EMSE#PBF?
The maximum output current is 1.5A.
- What are the available package options for the LT8608EMSE#PBF?
The device is available in 10-lead MSOP and 8-lead DFN packages.
- What is the switching frequency range of the LT8608EMSE#PBF?
The switching frequency is adjustable and synchronizable from 200kHz to 2.2MHz).
- Does the LT8608EMSE#PBF support Spread Spectrum Frequency Modulation?
- What is the minimum switch-on time of the LT8608EMSE#PBF?
The minimum switch-on time is 35ns).
- Is the LT8608EMSE#PBF suitable for automotive applications?
- Can the LT8608EMSE#PBF be used in battery-powered devices?
- What is the operating junction temperature range of the LT8608EMSE#PBF?
