ADP1850ACPZ Analog Devices Integrated Circuit (Other) In Stock
Analog Devices ADP1850ACPZ is a dual-phase synchronous buck PWM controller supporting high-current CPU and GPU core voltage regulation. Features current-mode control with programmable switching frequency from 200 kHz to 1 MHz. Available from stock worldwide.
- Manufacturer
- Analog Devices
- Package
- Other
- Pin Count
- 33
- Lifecycle
- ACTIVE
- Datasheet
- N/A
- Category
- Integrated Circuit
- Price
- From $1.4048(MOQ 124)
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of ADP1850ACPZ?
- Dual-phase synchronous buck controller with current-mode control enabling output currents exceeding 20 A for CPU and GPU power rails
- Programmable switching frequency from 200 kHz to 1 MHz allows optimization of inductor size, efficiency, and EMI performance
- Differential remote voltage sensing and accurate output voltage regulation within ±1% for precision core voltage applications
What is ADP1850ACPZ used for?
The ADP1850ACPZ is designed for high-current point-of-load power supply designs in computing platforms including server motherboards, workstations, and graphics cards requiring tight CPU core voltage regulation below 1.5 V. Its dual-phase architecture reduces output ripple and inductor size while supporting load currents above 20 A in compact power module footprints. The controller also suits FPGA and ASIC power management in telecom and networking equipment where fast transient response and ±1% output accuracy are essential.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
What are equivalent replacements for ADP1850ACPZ?
Compatible alternatives and drop-in replacements for ADP1850ACPZ:
Dual Switching Controller, Current-mode, 25A, 1725kHz Switching Freq-Max, DMOS
Frequently Asked Questions
What switching frequency range does ADP1850ACPZ support and how does it affect power stage component selection?
The ADP1850ACPZ supports a programmable switching frequency from 200 kHz to 1 MHz. Higher frequencies above 600 kHz allow smaller inductors and output capacitors for compact designs, while lower frequencies around 200 kHz improve efficiency at high load currents exceeding 20 A by reducing switching losses in the external MOSFET power stage.
How does ADP1850ACPZ dual-phase operation reduce output voltage ripple compared to single-phase designs?
In dual-phase mode, the ADP1850ACPZ interleaves two 180-degree phase-shifted switching channels, which cancels fundamental ripple components and reduces peak-to-peak output voltage ripple by approximately 50% compared to a single-phase buck. This allows smaller output capacitance values while maintaining output accuracy within ±1% for sensitive CPU core voltages below 1.5 V.
For which high-current server or computing board power rails is ADP1850ACPZ typically specified?
ADP1850ACPZ is typically specified for CPU VCC core rails, FPGA VCCINT rails, and DDR memory VTT power supplies in server motherboards and workstation platforms where output currents exceed 20 A at voltages from 0.6 V to 1.8 V. Its remote differential sense inputs maintain ±1% output accuracy across PCB trace resistance variations at these high current levels.
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Why Buy from FindMyChip
About Analog Devices
Analog Devices (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing integrated circuits used in virtually all types of electronic equipment.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 124+ | $1.6209 | $200.99 |
| 160+ | $1.5669 | $250.70 |
| 214+ | $1.4048 | $300.63 |
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