Overview
The LT8471IUFD#PBF, produced by Analog Devices Inc., is a dual PWM DC/DC converter that offers high versatility and performance in power supply designs. This component contains two internal 2A, 50V switches and an additional 500mA switch, enabling it to facilitate step-down and inverting conversions. Each 2A channel can be independently configured as a buck, boost, SEPIC, flyback, or inverting converter, making it ideal for generating positive and negative outputs from a single input rail. This device is particularly suited for various local power supply applications due to its multifunctional capabilities and robust performance characteristics.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Units |
|---|---|---|---|---|---|
| Input Voltage (VIN1, VIN2) | 2.6 | 50 | V | ||
| Quiescent Current (VIN1, Skyhook Disabled) | VOV/UV = 1.3V, Not Switching | 2.2 | 3.3 | mA | |
| Switch Current | 2A | A | |||
| Additional Switch Current | 500mA | A | |||
| Switching Frequency Range | 100kHz | 2MHz | Hz | ||
| Operating Temperature Range | -40°C | 125°C | °C | ||
| Package Type | 28-Lead QFN (4mm × 5mm) |
Key Features
- Dual PWM DC/DC converter with two internal 2A, 50V switches and an additional 500mA switch.
- Each 2A channel can be independently configured as a buck, boost, SEPIC, flyback, or inverting converter.
- Capable of generating positive and negative outputs from a single input rail.
- Adjustable oscillator with a frequency range of 100kHz to 2MHz, and synchronization to an external clock.
- Integrated features include frequency foldback, soft-start, and power good indicators.
- High efficiency and low power loss.
Applications
- Local power supply designs in various electronic systems.
- Industrial control systems requiring multiple output voltages.
- Automotive systems where robust and versatile power conversion is necessary.
- Medical devices that require reliable and efficient power supply solutions.
- Telecommunication equipment and networking devices.
Q & A
- What is the input voltage range of the LT8471IUFD#PBF?
The input voltage range is from 2.6V to 50V.
- How many switches are integrated into the LT8471IUFD#PBF?
The device contains two internal 2A, 50V switches and an additional 500mA switch.
- What are the possible configurations for each 2A channel?
Each 2A channel can be configured as a buck, boost, SEPIC, flyback, or inverting converter.
- What is the switching frequency range of the LT8471IUFD#PBF?
The switching frequency range is from 100kHz to 2MHz.
- Can the LT8471IUFD#PBF be synchronized to an external clock?
Yes, the device can be synchronized to an external clock.
- What are some of the integrated features of the LT8471IUFD#PBF?
Integrated features include frequency foldback, soft-start, and power good indicators.
- What is the operating temperature range of the LT8471IUFD#PBF?
The operating temperature range is from -40°C to 125°C.
- What type of package does the LT8471IUFD#PBF come in?
The device comes in a 28-Lead QFN (4mm × 5mm) package.
- What are some common applications for the LT8471IUFD#PBF?
Common applications include local power supply designs, industrial control systems, automotive systems, medical devices, and telecommunication equipment.
- How efficient is the LT8471IUFD#PBF in terms of power loss?
The device is designed to have high efficiency and low power loss, making it suitable for a variety of power-sensitive applications.
