Overview
The LT8610ABIMSE#PBF is a high-efficiency, high-speed synchronous monolithic step-down switching regulator produced by Analog Devices Inc. This component is part of the LT8610A/LT8610AB series, known for its compact design and low quiescent current. It is designed to provide a reliable and efficient power conversion solution for a variety of applications.
Key Specifications
| Parameter | Minimum | Typical | Maximum | Units |
|---|---|---|---|---|
| Input Voltage Range | 3.4 | - | 42 | V |
| Maximum Output Current | - | - | 3.5 | A |
| Minimum Switch-On Time | - | - | 30ns | - |
| Quiescent Current | - | - | 2.5µA | - |
| Efficiency (at 1A, 5VOUT from 12VIN) | - | - | 91% | - |
| Internal Feedback Resistor Divider (3.3V) | - | - | 14.3 MΩ | - |
| Internal Feedback Resistor Divider (5V) | - | - | 12.5 MΩ | - |
Key Features
- High efficiency synchronous operation with up to 91% efficiency at 1A, 5VOUT from 12VIN.
- Wide input voltage range from 3.4V to 42V.
- Ultralow quiescent current of 2.5µA in Burst Mode operation.
- Fast minimum switch-on time of 30ns.
- Fixed output voltages available at 3.3V and 5V.
- Low output ripple of less than 10mV-P-P for the LT8610A.
- Improved Burst Mode efficiency and EMI performance for the LT8610AB.
- Exposed pad (pin 17) is GND and must be soldered to the PCB for proper thermal management.
Applications
The LT8610ABIMSE#PBF is suitable for a variety of applications requiring high efficiency and compact power conversion solutions. These include:
- Industrial power supplies
- Automotive systems (with the #W suffix for automotive grade).
- Telecommunications equipment
- Medical devices
- Consumer electronics requiring efficient power management
Q & A
- What is the maximum input voltage for the LT8610ABIMSE#PBF?
The maximum input voltage is 42V.
- What is the quiescent current of the LT8610ABIMSE#PBF in Burst Mode operation?
The quiescent current is 2.5µA.
- What are the available fixed output voltages for the LT8610ABIMSE#PBF?
The available fixed output voltages are 3.3V and 5V.
- What is the minimum switch-on time for the LT8610ABIMSE#PBF?
The minimum switch-on time is 30ns.
- How efficient is the LT8610ABIMSE#PBF at 1A, 5VOUT from 12VIN?
The efficiency is up to 91% at 1A, 5VOUT from 12VIN.
- What is the purpose of the PG pin on the LT8610ABIMSE#PBF?
The PG pin is an open-drain output of an internal comparator that signals when VOUT is within ±9% of the programmed output voltage and there are no fault conditions).
- How should the exposed pad (pin 17) be handled during PCB assembly?
The exposed pad (pin 17) must be soldered to the PCB for proper thermal management).
- Are there automotive-grade versions of the LT8610ABIMSE#PBF available?
Yes, versions designated with a #W suffix are available for automotive applications).
- What is the typical output ripple for the LT8610A version of this regulator?
The output ripple is less than 10mV-P-P for the LT8610A).
- How does the BIAS pin affect the operation of the LT8610ABIMSE#PBF?
The internal regulator will draw current from BIAS instead of VIN when BIAS is tied to a voltage higher than 3.1V. For output voltages of 3.3V and above, this pin should be tied to VOUT).
