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Product Detailed Parameters
- Description：IC REG CTRLR BUCK 14LFCSP
- 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：1
- Output Phases：1
- Voltage - Supply (Vcc/Vdd)：3.25V ~ 20V
- Frequency - Switching：1MHz
- Duty Cycle (Max)：45%
- Synchronous Rectifier：Yes
- Clock Sync：No
- Serial Interfaces：-
- Control Features：Enable, Power Good, Soft Start
- Operating Temperature：-40°C ~ 125°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：14-WFDFN Exposed Pad, CSP
- Supplier Device Package：14-LFCSP-WD (4x3)
- Grade：-
- Qualification：-
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Overview
The ADP1878ACPZ-1.0-R7 is a synchronous buck controller manufactured by Analog Devices Inc., housed in a 14-pin LFCSP package. It utilizes constant on-time and valley current mode control architectures to regulate power conversion. The device supports input voltage ranges suitable for various industrial applications and features integrated bootstrap diodes and gate drivers for external N-channel MOSFETs. Designed for high efficiency, it operates within a temperature range of -40°C to +125°C.
Feature Summary
- Implements constant on-time control with valley current mode for stable operation under varying load conditions.
- Integrates bootstrap diode and gate driver circuitry to minimize external component count.
- Supports wide input voltage ranges compatible with standard industrial power rails.
Applications
- Industrial point-of-load regulation
- Telecommunications power systems
- Embedded computing power distribution
Procurement Notes
Verify the specific suffix R7 indicates reel packaging configuration when sourcing. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure ESD handling protocols are followed due to moisture sensitivity classification. Cross-reference pinout diagrams with target PCB layout requirements to prevent interface mismatches during assembly.
Selection Notes
Select this component for designs requiring simplified synchronous buck topologies without complex feedback compensation networks. The constant on-time architecture reduces design complexity compared to traditional voltage mode controllers. Evaluate thermal performance requirements against the LFCSP package capabilities for the intended enclosure environment.
Part Context
This part belongs to the ADP1878/ADP1879 series of synchronous buck controllers from Analog Devices. These devices are engineered for high-frequency switching applications where size and efficiency are critical constraints. The family shares core control logic but may vary in fixed output voltage settings or additional protection features.
Replacement Considerations
Direct substitutes include other Analog Devices synchronous buck controllers such as the ADP1879 series variants. Verify compatibility regarding control topology and pin assignments before substitution.
