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Product Detailed Parameters
- Description：IC REG BUCK ADJ 500MA 16TSSOP
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tube
- Function：Step-Down
- Output Configuration：Positive
- Topology：Buck
- Output Type：Adjustable
- Number of Outputs：1
- Voltage - Input (Min)：3V
- Voltage - Input (Max)：60V
- Voltage - Output (Min/Fixed)：1.25V
- Voltage - Output (Max)：57V
- Current - Output：500mA (Switch)
- Frequency - Switching：200kHz
- Synchronous Rectifier：No
- Operating Temperature：0°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 LT3437EFE#PBF is a high voltage, monolithic step-down switching regulator manufactured by Analog Devices Inc. It operates with an input voltage range of 3.3 V to 60 V and provides an adjustable output voltage. The device integrates a 500 mA power switch and supports a fixed switching frequency of 200 kHz. It features a low quiescent current of 100 µA and includes a shutdown pin for power management. The component is housed in a 16-lead TSSOP package with an exposed pad and is rated for operation between -40°C and +125°C.
Feature Summary
- Integrates a high voltage power switch capable of handling up to 60 V input
- Provides low standby power consumption through reduced quiescent current
- Includes thermal regulation and cycle-by-cycle current limit protection
Applications
- Point-of-load regulation in industrial systems
- Battery-powered equipment requiring high efficiency
- Automotive electronics operating within specified voltage ranges
Procurement Notes
Verify the specific suffix against official Analog Devices documentation to confirm package type and temperature grade. Ensure compatibility with required input voltage levels and thermal dissipation requirements for the target application environment before finalizing procurement specifications.
Selection Notes
Select this component when a buck converter is needed for inputs exceeding standard logic levels but below 60 V. Consider the 200 kHz switching frequency for balancing component size and efficiency. Verify that the 500 mA output current meets the load requirements without external heat sinking beyond the package capabilities.
Part Context
This part belongs to the LT3437 family of high voltage step-down regulators designed for applications requiring wide input voltage ranges. It serves as a compact solution for converting higher voltages to lower regulated levels in space-constrained designs.
Replacement Considerations
Consult official substitution guides for equivalent parts from Analog Devices or other manufacturers. Verify pinout compatibility and electrical parameter alignment before replacing.
