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LTC1159IS-3.3#PBF is listed in the DC DC Switching Controllers range at ChipApex. The manufacturer field lists Analog Devices Inc.. Its product description is IC REG CTRLR BUCK 16SOIC. Review the specifications below when checking this part for your BOM.
DC DC Switching Controllers specifications for LTC1159IS-3.3#PBF
- Description：IC REG CTRLR BUCK 16SOIC
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tube
- Output Type：Transistor Driver
- Function：Step-Down
- Output Configuration：Positive or Negative
- Topology：Buck
- Number of Outputs：1
- Output Phases：1
- Voltage - Supply (Vcc/Vdd)：4V ~ 40V
- Frequency - Switching：Up to 250kHz
- Duty Cycle (Max)：100%
- Synchronous Rectifier：Yes
- Clock Sync：No
- Serial Interfaces：-
- Control Features：Current Limit, Enable
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：16-SOIC (0.154", 3.90mm Width)
- Supplier Device Package：16-SO
DC DC Switching Controllers datasheet and documents for LTC1159IS-3.3#PBF
DC DC Switching Controllers Overview
The LTC1159IS-3.3#PBF is a high-efficiency synchronous step-down switching regulator controller manufactured by Analog Devices Inc. It operates with an input voltage range of 4V to 40V and provides a fixed 3.3V output. The device supports up to 2A output current and features automatic Burst Mode operation to maintain high efficiency at low load currents. It utilizes a 16-SOIC package and functions within a temperature range of -40°C to +85°C.
DC DC Switching Controllers Feature Summary
- Synchronous buck topology for improved efficiency
- Automatic Burst Mode operation for light-load performance
- Wide input voltage capability
- Fixed 3.3V output configuration
DC DC Switching Controllers Applications
- High efficiency DC-DC conversion systems
- Battery-powered equipment requiring low quiescent current
- Industrial control power supplies
- Communication infrastructure power distribution
DC DC Switching Controllers Procurement Notes
Verify the specific suffix #PBF indicates lead-free compliance and RoHS status. Confirm the 16-SOIC package dimensions match your PCB footprint requirements. Ensure the fixed 3.3V output aligns with system voltage needs, as other variants exist. Check current availability through authorized distributors due to potential supply constraints.
DC DC Switching Controllers Selection Notes
Select this component when a synchronous buck controller with wide input range is required. The fixed 3.3V output simplifies design compared to adjustable versions. Consider the 2A current limit for load requirements. The Burst Mode feature is critical for applications demanding high efficiency across varying load conditions. Verify external component compatibility for the 250kHz switching frequency.
DC DC Switching Controllers Part Context
This part belongs to the LTC1159 series of synchronous step-down switching regulator controllers. The series is characterized by high efficiency and automatic Burst Mode operation. The IS-3.3 variant specifically denotes the industrial temperature grade and fixed 3.3V output voltage. It is designed for applications requiring robust performance in demanding environments.
DC DC Switching Controllers Replacement Considerations
Direct substitutes include other LTC1159 variants with different output voltages or packages. Cross-reference with LTC1159IS#PBF for general family compatibility. Verify pinout and electrical specifications before substitution.
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