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Product Detailed Parameters
- Description：IC REG BUCK BOOST ADJ 6A 32LQFN
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tray
- Function：Step-Up/Step-Down
- Output Configuration：Positive
- Topology：Buck-Boost
- Output Type：Adjustable
- Number of Outputs：1
- Voltage - Input (Min)：3V
- Voltage - Input (Max)：40V
- Voltage - Output (Min/Fixed)：1V
- Voltage - Output (Max)：18V
- Current - Output：6A
- Frequency - Switching：200kHz ~ 2MHz
- Synchronous Rectifier：Yes
- Operating Temperature：-40°C ~ 125°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：32-TFQFN Exposed Pad, 28 Leads
- Supplier Device Package：32-LQFN (6x4)
- Grade：Automotive
- Qualification：AEC-Q100
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Overview
The LT8350SAV#WPBF is a synchronous buck-boost switching regulator IC from Analog Devices, designed for high-efficiency power conversion in automotive and industrial environments. It features an input voltage range of 3V to 40V and supports adjustable output voltages from 1V to 18V with a maximum continuous output current of 6A. The device operates at a programmable switching frequency between 200kHz and 2MHz. Packaged in a 32-TFQFN (6x4mm) exposed pad package, it is qualified under AEC-Q100 standards and rated for junction temperatures from -40°C to 125°C.
Feature Summary
- Integrated synchronous rectification for enhanced efficiency across wide input-output differential ranges
- Automotive-grade qualification ensuring reliability in harsh operating environments
- Programmable switching frequency allows optimization for size and performance trade-offs
- Wide input voltage capability accommodates varying source conditions without external level shifting
Applications
- Automotive infotainment and instrument cluster power supplies
- Industrial distributed power systems requiring isolated or non-isolated regulation
- Battery-powered equipment with varying cell configurations
- On-board charger (OBC) auxiliary power stages
Procurement Notes
Verify the specific suffix designation carefully during procurement. The '#WPBF' suffix indicates lead-free tin plating and RoHS compliance. Confirm that the 'S' grade matches your required temperature and reliability specifications. Ensure the ordering part number aligns exactly with the datasheet revision to avoid pinout or functional discrepancies. Cross-reference the manufacturer's latest documentation for any product change notifications affecting this specific variant.
Selection Notes
Select this component when a single-stage solution is needed to handle both step-up and step-down requirements efficiently. The 6A current rating suits moderate-power applications where space constraints favor a compact QFN package. Consider the 200kHz to 2MHz frequency range to balance EMI performance against passive component size. Verify that the 40V absolute maximum input rating exceeds the system's peak transient voltage levels to ensure robust operation.
Part Context
This part belongs to the LT8350 family of synchronous buck-boost regulators. The 'S' denotes the automotive grade version, while 'AV' specifies the 40V input and 18V output capability within the adjustable range. The '#WPBF' indicates the packaging and environmental compliance details. It serves as a versatile power management solution replacing multi-stage converter designs in compact form factors.
Replacement Considerations
LT8350RV#PBF is listed as a parameter-equivalent alternative. LT8350SAV#PBF is also noted as equivalent but may differ in lead finish or packaging configuration. Verify electrical parameters and thermal characteristics before substitution.
