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 BUCK-BOOST 38TSSOP
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tube
- Output Type：Transistor Driver
- Function：Step-Up/Step-Down
- Output Configuration：Positive
- Topology：Buck-Boost
- Number of Outputs：2
- Output Phases：2
- Voltage - Supply (Vcc/Vdd)：2.8V ~ 80V
- Frequency - Switching：100kHz ~ 400kHz
- Duty Cycle (Max)：-
- Synchronous Rectifier：Yes
- Clock Sync：Yes
- Serial Interfaces：-
- Control Features：Enable, Frequency Control, Soft Start
- Operating Temperature：-40°C ~ 125°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：38-TFSOP (0.173", 4.40mm Width) 31 Leads, Exposed Pad
- Supplier Device Package：38-TSSOP-EP
Download product information
Overview
The LT8705IFE#PBF is a synchronous buck-boost switching regulator controller from Analog Devices Inc. It supports input voltages ranging from 2.8V to 80V and can deliver up to 10A of output current. The device operates with a fixed switching frequency of 400kHz and features a quiescent current of 2.65mA. It is housed in a 38-TFSOP package with an exposed pad, designed for surface mount installation. The controller functions effectively when the input voltage is above, below, or equal to the output voltage.
Feature Summary
- Synchronous four-switch buck-boost topology enabling operation across all input-to-output voltage relationships
- Integrated shutdown capability for power management optimization
- High performance regulation suitable for wide input voltage ranges
Applications
- Supercapacitor backup power systems
- Industrial distributed power supplies
- Battery-powered equipment requiring step-up/step-down conversion
Procurement Notes
Verify the specific suffix (IFE vs EUHF) against your schematic requirements, as pinouts and packages differ. Confirm availability status directly with authorized distributors, as some variants may be subject to limited supply or factory special orders. Ensure the 38-TFSOP package footprint matches your PCB design constraints before finalizing procurement.
Selection Notes
Select this component when designing converters that must handle input voltages significantly higher or lower than the target output. The 400kHz switching frequency offers a balance between efficiency and component size. Consider the 10A current capability and thermal performance within the TFSOP package for high-power applications requiring robust buck-boost functionality.
Part Context
This part belongs to the LT8705 family of high-performance buck-boost controllers. It is often paired with evaluation boards like the DC1924A for design verification. The IFE variant specifically utilizes a 38-TFSOP package, distinguishing it from other package options within the same functional series offered by Analog Devices.
Replacement Considerations
Public confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing designs carefully, as package differences between IFE and EUHF variants exist.
