Overview
The LT8471EFE#TRPBF, produced by Analog Devices Inc., is a dual PWM DC/DC converter designed for versatile power management applications. This component features two internal 2A, 50V switches and an additional 500mA switch, enabling both step-down and inverting conversion. It is part of the Linear Technology product line, now integrated into Analog Devices Inc.
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 | |
| Quiescent Current (VIN1, Skyhook Enabled) | VOV/UV = 1.3V, C3 = 5V, Not Switching | 2.4 | 4 | mA | |
| Quiescent Current (VIN2) | VOV/UV = 1.3V, Not Switching | 29 | 42 | µA | |
| Quiescent Current in Shutdown (VIN1 + VIN2) | VOV/UV = 0V | 0.01 | 1 | µA | |
| Positive Feedback Voltage (FB1, FB2) | 773 | 789 | 805 | mV | |
| Negative Feedback Voltage (FB1, FB2) | -806 | -788 | -770 | mV | |
| Feedback Pin Bias Current (FB1, FB2) | VFB = Positive Feedback Voltage, Current Out of Pin VFB = Negative Feedback Voltage | -100 | 30 | 200 | nA |
| Error Amp Transconductances Primary Channels, ∆I = 2μA | 70 | μmhos | |||
| Error Amp Voltage Gains Primary Channels | 95 | V/V | |||
| Reference Line Regulation | 2.6V ≤ VIN1 ≤ 50V | 0.008 | 0.05 | %/V | |
| Switching Frequency, fOSC | RT = 46.4k, RT = 732k |
Key Features
- Dual PWM DC/DC converter with two internal 2A, 50V switches and an additional 500mA switch.
- Supports step-down and inverting conversion.
- Wide input voltage range: 2.6V to 50V.
- Low quiescent current: 2.2mA to 4mA (depending on configuration).
- High efficiency with minimal power loss.
- Multiple feedback voltage options for flexible output regulation.
- Available in various package options including 20-Lead Plastic TSSOP and 28-Lead Plastic QFN.
- Operating temperature ranges: –40°C to 125°C (LT8471E, I) and –40°C to 150°C (LT8471H).
Applications
The LT8471EFE#TRPBF is suitable for a variety of power management applications, including:
- Industrial power systems requiring multiple output voltages.
- Automotive systems where robust and efficient power conversion is necessary.
- Telecommunication equipment needing reliable and efficient DC/DC conversion.
- Medical devices that require precise and efficient power management.
- General-purpose power supplies in various electronic devices.
Q & A
- What is the input voltage range of the LT8471EFE#TRPBF?
The input voltage range is from 2.6V to 50V. - How many internal switches does the LT8471EFE#TRPBF have?
The LT8471EFE#TRPBF has two internal 2A, 50V switches and an additional 500mA switch. - What are the typical quiescent current values for the LT8471EFE#TRPBF?
The quiescent current ranges from 2.2mA to 4mA depending on the configuration. - What are the available package options for the LT8471EFE#TRPBF?
The component is available in 20-Lead Plastic TSSOP and 28-Lead Plastic QFN packages. - What are the operating temperature ranges for the LT8471EFE#TRPBF?
The operating temperature ranges are –40°C to 125°C (LT8471E, I) and –40°C to 150°C (LT8471H). - What types of conversions does the LT8471EFE#TRPBF support?
The LT8471EFE#TRPBF supports both step-down and inverting conversions. - How efficient is the LT8471EFE#TRPBF in terms of power loss?
The component is designed for high efficiency with minimal power loss. - What are some common applications for the LT8471EFE#TRPBF?
Common applications include industrial power systems, automotive systems, telecommunication equipment, medical devices, and general-purpose power supplies. - Is the LT8471EFE#TRPBF RoHS compliant?
Yes, the LT8471EFE#TRPBF is lead-free and RoHS compliant. - Where can I find detailed specifications for the LT8471EFE#TRPBF?
Detailed specifications can be found in the datasheet available on the Analog Devices website or through authorized distributors like Mouser Electronics.
