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Product Detailed Parameters
- Description：IC REG BCK BST ADJ 500MA 16TSSOP
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tube
- Function：Step-Up/Step-Down
- Output Configuration：Positive
- Topology：Buck-Boost
- Output Type：Adjustable
- Number of Outputs：1
- Voltage - Input (Min)：4V
- Voltage - Input (Max)：60V
- Voltage - Output (Min/Fixed)：3.3V
- Voltage - Output (Max)：20V
- Current - Output：500mA (Switch)
- Frequency - Switching：200kHz
- Synchronous Rectifier：No
- Operating Temperature：-40°C ~ 125°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：16-TSSOP (0.173", 4.40mm Width) Exposed Pad
- Supplier Device Package：16-TSSOP-EP
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Overview
The LT3433IFE#PBF is a high-voltage step-up/step-down DC/DC converter manufactured by Analog Devices Inc. It operates as a fixed-frequency current mode switching regulator at 200kHz, utilizing a single inductor to provide both buck and boost regulation. The device accepts an input voltage range of 4V to 60V and delivers an adjustable positive output up to 500mA. Housed in a 16-pin TSSOP package with exposed pad, it functions within a temperature range of -40°C to +125°C.
Feature Summary
- Provides automatic step-up and step-down regulation using a single inductor topology
- Operates as a fixed-frequency current mode switching regulator at 200kHz
- Supports wide input voltage range from 4V to 60V for high-voltage applications
Applications
- High-voltage battery-powered systems requiring buck-boost conversion
- Industrial control circuits with varying supply voltages
- Automotive electronics operating under fluctuating load conditions
Procurement Notes
Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm the specific suffix #PBF indicates lead-free packaging compliance. Check current availability status as supply may be limited or subject to allocation. Ensure compatibility with required thermal management solutions for the TSSOP-EP-16 package during integration.
Selection Notes
Select this component when a single-inductor solution is preferred for bidirectional voltage conversion. Consider the 200kHz switching frequency for balancing efficiency and external component size. Evaluate the 500mA switch current limit against peak load requirements. Verify that the 4V to 60V input range covers the minimum source voltage during operation.
Part Context
This part belongs to the LT3433 series of high-voltage DC/DC converters. It is designed for applications needing efficient power conversion across input voltages lower than, equal to, or higher than the output voltage. The device integrates the control logic and power switches into a compact surface-mount package.
Replacement Considerations
LT3433IFE is the non-lead-free equivalent variant. Verify pinout and electrical specifications match before substitution. No other cross-model substitutes are confirmed in public documentation.
