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Product Detailed Parameters
- Description：IC REG CTRLR BUCK 32LFCSP
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tape & Reel (TR),Cut Tape (CT),Bulk
- Output Type：Transistor Driver
- Function：Step-Down
- Output Configuration：Positive
- Topology：Buck
- Number of Outputs：2
- Output Phases：2
- Voltage - Supply (Vcc/Vdd)：2.75V ~ 20V
- Frequency - Switching：600kHz
- Duty Cycle (Max)：76%
- Synchronous Rectifier：Yes
- Clock Sync：No
- Serial Interfaces：-
- Control Features：Current Limit, Enable, Power Good, Ramp, Soft Start, Tracking
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：32-WFQFN Exposed Pad, CSP
- Supplier Device Package：32-LFCSP (5x5)
- Grade：-
- Qualification：-
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Overview
The ADP1876ACPZ-R7 is a dual-output synchronous buck switching controller manufactured by Analog Devices Inc. It operates with a fixed switching frequency of 600 kHz and supports input supply voltages ranging from 2.75 V to 20 V. The device features a maximum duty cycle of 76% and includes an integrated 150 mA low-dropout (LDO) regulator. Designed for surface-mount installation, it utilizes an LFCSP package and functions within a temperature range of -40°C to +125°C.
Feature Summary
- Dual synchronous buck controller architecture for multi-rail power distribution
- Integrated 150 mA LDO regulator for auxiliary power supplies
- Fixed 600 kHz switching frequency for optimized component size
- Wide input voltage range supporting various system bus levels
Applications
- Multi-voltage point-of-load regulation in industrial systems
- Power management for embedded computing platforms
- Telecommunications equipment requiring stable dual rails
Procurement Notes
Verify the specific suffix R7 indicates reel packaging when ordering. Confirm the LFCSP package type matches your PCB footprint requirements. Ensure compatibility with the 600 kHz fixed frequency against your EMI constraints. Check for moisture sensitivity handling procedures during assembly. Validate that the 150 mA LDO current meets your auxiliary load needs.
Selection Notes
Select this component when a dual-channel synchronous buck solution is required alongside a dedicated LDO output. The fixed 600 kHz frequency simplifies external inductor and capacitor selection compared to adjustable frequency variants. Consider the 2.75 V minimum input voltage against your system's lowest operating rail. The integrated LDO reduces bill of materials count for standard logic or sensor supplies.
Part Context
This part belongs to the ADP1876 series of dual synchronous buck controllers from Analog Devices. It is designed for applications requiring two independent regulated outputs from a single controller IC. The series emphasizes high efficiency and compact design through synchronous rectification and integrated control loops.
Replacement Considerations
Check Analog Devices documentation for direct pin-compatible alternatives within the ADP187x family. Verify if other models offer different switching frequencies or LDO current ratings while maintaining the same package outline.
