ChipApex | Global Electronic Components Supplier
SEARCH
Search Product
Search Post
— IC芯片 | 连接器 | 传感器 | 被动器件 —
Consult the customer manager about the wholesale price.
consultation hotline：86-132-6715-2157
email：[email protected]
Contact the product manager for consultation. One-stop consultation is available.
Do you want a lower wholesale price? Please send us your inquiry and we will reply immediately.
Product Detailed Parameters
- Description：IC REG CTRLR MULT TOP 20TSSOP
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tube
- Output Type：Transistor Driver
- Function：Step-Up, Step-Down, Step-Up/Step-Down
- Output Configuration：Positive or Negative
- Topology：Buck, Boost, Buck-Boost
- Number of Outputs：1
- Output Phases：1
- Voltage - Supply (Vcc/Vdd)：-4.5V ~ -80V
- Frequency - Switching：100kHz ~ 750kHz
- Duty Cycle (Max)：-
- Synchronous Rectifier：Yes
- Clock Sync：Yes
- Serial Interfaces：-
- Control Features：Enable, Frequency Control, Power Good, Soft Start
- Operating Temperature：-40°C ~ 125°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：20-TSSOP (0.173", 4.40mm Width) Exposed Pad
- Supplier Device Package：20-TSSOP-EP
Download product information
Overview
The LT8709EFE#PBF is a synchronous PWM controller designed for negative-to-negative or negative-to-positive DC/DC conversion. It supports Buck, Boost, Inverting, and SEPIC topologies with a single output. The device operates within an input voltage range of -4.5 V to -80 V and delivers up to 25 A output current. It features a fixed switching frequency of 750 kHz and an adjustable output voltage from 1.234 V to 80 V. Operating temperatures range from -40°C to +125°C in a TSSOP-20 package.
Feature Summary
- Synchronous PWM control architecture for efficient negative-to-negative or negative-to-positive power conversion
- Multi-topology capability supporting Buck, Boost, Inverting, and SEPIC configurations
- Integrated rail-to-rail output current monitoring for precise load management
Applications
- Industrial power systems requiring negative rail regulation
- Telecommunications infrastructure power supplies
- Automotive electronics utilizing negative ground architectures
Procurement Notes
Verify the specific suffix #PBF indicates tube packaging versus #TRPBF for tape and reel when ordering. Confirm availability status as distribution channels may list limited stock or end-of-life conditions. Ensure the TSSOP-20 package variant matches your PCB footprint requirements before finalizing procurement.
Selection Notes
Select this component for applications requiring high-current synchronous control in negative voltage domains. The 750 kHz frequency offers a balance between efficiency and component size. Ensure thermal management solutions support the TSSOP-20 package constraints for the specified operating temperature range.
Part Context
This part belongs to the LT8709 series of multi-topology DC/DC controllers from Analog Devices. It complements other variants like the LT8709EFE#TRPBF, differing primarily in packaging format. The series targets robust industrial and automotive environments requiring flexible voltage conversion capabilities.
Replacement Considerations
LT8709EFE#TRPBF serves as a direct functional substitute with identical electrical specifications, differing only in tape-and-reel packaging instead of tubes.
