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Product Detailed Parameters
- Description：IC REG BUCK SEPIC ADJ 1.5A 8SO
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tube
- Function：Step-Down
- Output Configuration：Positive
- Topology：Buck, SEPIC
- Output Type：Adjustable
- Number of Outputs：1
- Voltage - Input (Min)：5V
- Voltage - Input (Max)：25V
- Voltage - Output (Min/Fixed)：2.42V
- Voltage - Output (Max)：21.5V
- Current - Output：1.5A (Switch)
- Frequency - Switching：500kHz
- Synchronous Rectifier：No
- Operating Temperature：0°C ~ 125°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：8-SOIC (0.154", 3.90mm Width)
- Supplier Device Package：8-SO
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Overview
The LT1376CS8#PBF is a monolithic buck switching regulator manufactured by Analog Devices Inc. It operates with an input voltage range of 5 V to 25 V and delivers a maximum output current of 1.5 A. The device features a fixed switching frequency of 500 kHz and supports adjustable output voltages. It includes a shutdown function with a quiescent current of 20 uA and a typical operating supply current of 2.5 mA. The component is housed in an SOIC-8 surface-mount package and is rated for operation between 0°C and +125°C.
Feature Summary
- Integrates a high-efficiency buck converter topology capable of delivering up to 1.5 A output current.
- Features a fixed internal switching frequency of 500 kHz to minimize external passive component requirements.
- Includes a dedicated shutdown pin that reduces supply current to 20 uA for power conservation.
- Provides adjustable output voltage control via external feedback resistors.
Applications
- Point-of-load regulation for industrial equipment
- Power supplies for battery-operated systems requiring efficient step-down conversion
- Embedded controller power distribution networks
Procurement Notes
Verify the specific suffix #PBF indicates lead-free compliance and RoHS adherence before procurement. Confirm the SOIC-8 package dimensions match the target PCB footprint. Ensure the input voltage does not exceed the 25 V maximum rating during operation. Check for availability constraints as distribution status may vary by region.
Selection Notes
Select this component when a compact, non-synchronous buck solution is required for moderate current loads. It is suitable for designs where a fixed 500 kHz frequency aligns with EMI constraints. Consider the LT1376HV variant if the input voltage exceeds 25 V but remains below 30 V. Evaluate thermal performance based on the SOIC-8 package limitations under full load conditions.
Part Context
This part belongs to the LT1376 series of monolithic buck regulators from Analog Devices. The series offers various packages including PDIP and SOIC, with options for fixed or adjustable outputs. The CS8 designation specifically identifies the commercial temperature grade and surface-mount SOIC-8 form factor within the broader product family.
Replacement Considerations
LT1376CS8-5#PBF provides a fixed 5 V output instead of adjustable. LT1376HVCS8#PBF supports higher input voltages up to 30 V. LT1376CN8#PBF offers a through-hole PDIP-8 package option.
