Overview
The LT8619IDD#TRPBF from Analog Devices Inc. is a high-efficiency, synchronous monolithic step-down switching regulator. This compact regulator is designed to operate over a wide input voltage range of 3V to 60V and can deliver up to 1.2A of output current. It features a low quiescent current of 6μA, making it suitable for applications where power efficiency is critical. The LT8619 is available in a 10-lead 3mm × 3mm DFN package with an exposed pad for low thermal resistance.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Input Voltage Range | 3V to 60V | V |
| Output Current | 1.2A | A |
| Quiescent Current | 6μA | A |
| Minimum On-Time | 30ns | ns |
| Output Ripple at No Load | 10mV-P-P | mV |
| Switching Frequency | 300kHz to 2.2MHz | kHz/MHz |
| Efficiency | Up to 92% at 0.5A, 5VOUT from 12VIN | % |
| Package Type | 10-lead 3mm × 3mm DFN with exposed pad | |
| Operating Temperature Range | –40°C to 125°C | °C |
Key Features
- High efficiency synchronous operation with up to 92% efficiency at 0.5A, 5VOUT from 12VIN.
- Ultralow quiescent current of 6μA in Burst Mode operation.
- Fast minimum switch-on time of 30ns.
- Synchronizable and programmable fixed frequency operation from 300kHz to 2.2MHz.
- Low dropout voltage of 360mV at 0.5A.
- Low EMI due to optimized design.
- Accurate 1V enable pin threshold.
- Internal soft-start and compensation.
- Power Good flag to indicate when VOUT is within ±7.5% of the programmed output voltage.
Applications
- Automotive systems requiring high input voltage and low quiescent current.
- Industrial power supplies where efficiency and reliability are crucial.
- Telecommunications equipment needing compact and high-efficiency power solutions.
- Medical devices that require low noise and high efficiency power regulation.
- General-purpose DC-DC conversion in various electronic systems.
Q & A
- What is the input voltage range of the LT8619IDD#TRPBF?
The input voltage range is from 3V to 60V.
- What is the maximum output current of the LT8619IDD#TRPBF?
The maximum output current is 1.2A.
- What is the quiescent current of the LT8619IDD#TRPBF in Burst Mode operation?
The quiescent current is 6μA.
- What are the available switching frequencies for the LT8619IDD#TRPBF?
The switching frequency can be set from 300kHz to 2.2MHz.
- What is the efficiency of the LT8619IDD#TRPBF at 0.5A, 5VOUT from 12VIN?
The efficiency is up to 92%.
- What is the package type of the LT8619IDD#TRPBF?
The package type is a 10-lead 3mm × 3mm DFN with an exposed pad.
- What is the operating temperature range of the LT8619IDD#TRPBF?
The operating temperature range is from –40°C to 125°C.
- Does the LT8619IDD#TRPBF have a Power Good flag?
- Is the LT8619IDD#TRPBF suitable for automotive applications?
- What is the minimum on-time of the LT8619IDD#TRPBF?
The minimum on-time is 30ns.
