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Product Detailed Parameters
- Description：IC REG BST CHARGE PUMP ADJ 20QFN
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tube
- Function：Step-Up, Step-Up/Step-Down
- Output Configuration：Positive
- Topology：Boost, Charge Pump, Flyback, SEPIC
- Output Type：Adjustable
- Number of Outputs：1
- Voltage - Input (Min)：1V
- Voltage - Input (Max)：60V
- Voltage - Output (Min/Fixed)：1.202V
- Voltage - Output (Max)：70V (Switch)
- Current - Output：2A
- Frequency - Switching：250kHz ~ 1.5MHz
- Synchronous Rectifier：No
- Operating Temperature：-40°C ~ 125°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：20-WFQFN Exposed Pad
- Supplier Device Package：20-QFN (4x4)
- Grade：-
- Qualification：-
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Overview
The LT8494EUF#PBF is a monolithic switching regulator from Analog Devices, designed for flexible DC-DC conversion topologies including SEPIC, boost, and flyback configurations. It supports an input voltage range of 1V to 32V and delivers an adjustable output voltage up to 70V with a maximum output current of 2A. The device features an adjustable switching frequency ranging from 250kHz to 1.5MHz, allowing optimization for efficiency or component size. Quiescent current is specified at less than 7uA during operation and drops to 0.3uA when the SWEN pin is low. It operates within a temperature range of -40°C to +125°C and is housed in a 20-pin TSSOP-EP package.
Feature Summary
- Supports multiple converter topologies including SEPIC, boost, and flyback configurations for versatile power design applications.
- Features ultra-low quiescent current consumption with a dedicated shutdown mode via the SWEN pin for enhanced energy efficiency.
- Offers adjustable switching frequency across a wide range to optimize external component selection and system performance.
Applications
- Battery-powered systems requiring efficient voltage step-up or inversion
- Industrial control circuits utilizing SEPIC topology for varying input sources
- Automotive electronics needing robust DC-DC conversion capabilities
Procurement Notes
Verify the specific suffix and package type against official Analog Devices documentation to ensure compatibility with your design requirements. Confirm that the LT8494EUF#PBF variant matches your intended topology and electrical specifications before procurement. Cross-reference the datasheet for any recent updates regarding pinout or thermal characteristics to avoid integration errors.
Selection Notes
Select this component when a single IC needs to support multiple DC-DC topologies such as SEPIC, boost, or flyback. It is suitable for designs requiring high input voltages up to 32V and outputs up to 70V. Consider its adjustable frequency feature if minimizing passive component size is a priority. Ensure the 20-pin TSSOP-EP package fits your PCB layout constraints and thermal management strategy.
Part Context
The LT8494 belongs to the LT8494 series of monolithic switching regulators by Analog Devices. This family is characterized by its flexibility in supporting various converter topologies within a single chip. The EUF#PBF designation indicates a specific package and lead-free compliance variant within this product line, targeting industrial and automotive applications requiring reliable power management solutions.
Replacement Considerations
LT8494EFE#PBF and LT8494IFE#PBF are confirmed substitute part numbers within the same series offering similar functional capabilities and specifications.
