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Product Detailed Parameters
- Description：IC REG CTRLR BUCK 10MSOP
- 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
- Operating Temperature：-40°C ~ 125°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Supplier Device Package：10-MSOP
- Grade：-
- Qualification：-
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Overview
The ADP1871ARMZ-1.0-R7 is a synchronous buck switching controller manufactured by Analog Devices Inc. It operates with a fixed 1.0 MHz switching frequency and supports output currents up to 25 A. The device features a minimum output voltage of 600 mV and functions within an operating temperature range of -40°C to +125°C. Packaged in a 10-MSOP surface-mount format, it integrates constant on-time valley current mode control and power save mode for optimized efficiency.
Feature Summary
- Integrates constant on-time valley current mode control architecture
- Supports power save mode for enhanced light load efficiency
- Includes shutdown pin functionality for system power management
Applications
- Point-of-load regulation in telecommunications infrastructure
- Power supply stages for industrial equipment
- Voltage regulation for embedded computing systems
Procurement Notes
Verify the specific suffix 'R7' corresponds to the reel packaging configuration required for your assembly line. Confirm that the 10-MSOP package dimensions align with your PCB footprint design rules. Ensure compatibility with the 1.0 MHz fixed frequency operation against your electromagnetic interference constraints. Validate moisture sensitivity level handling procedures during storage and reflow soldering processes.
Selection Notes
Select this component when a fixed high-frequency solution is preferred over adjustable variants to simplify external compensation networks. The 1.0 MHz frequency allows for smaller passive components compared to lower frequency controllers. Consider the 10-MSOP package size relative to available board space. Verify that the 25 A current capability meets the peak load requirements of the target application circuit.
Part Context
This part belongs to the ADP1871 series of synchronous buck controllers from Analog Devices. The series offers multiple frequency options including 300 kHz and 600 kHz variants. The ARMZ suffix indicates the MSOP package type, distinguishing it from LFCSP versions like the ACPZ series. All variants share the same core control architecture and electrical specifications.
Replacement Considerations
Direct substitutes include ADP1871ACPZ-1.0-R7 (LFCSP package) and ADP1871ACPZ-0.3-R7 (300 kHz variant). Cross-package replacements require PCB footprint modification. Frequency-specific alternatives may impact thermal performance and passive component selection.
