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MAX8524 - 2- to 8-Phase VRM 10/9.1 PWM Controllers

Description

The MAX8525 (VRM 10/VRD 10)/MAX8524 (VRM 9.1/ VRD 9.1) current-mode step-down controllers, the MAX8523 high-speed, dual-phase MOSFET gate driver, and the MAX8552 wide-input, single-phase MOSFET gate driver provide flexible, low-cost, low-voltage CPU core supplies.

Features

  • es VRD/VRM 10 (MAX8525) VRD/VRM 9.1 (MAX8524) Fastest Load-Transient Response Rapid-Active Average Current Sensing Better than 5% Current Balance Fastest Voltage Positioning ±0.4% Initial Output-Voltage Accuracy Pin-Selectable 2-/3-/4-Phase Operation Master-Slave 6-/8-Phase Operation Differential Remote Voltage Sensing Dynamic VID Change (MAX8525) Adjustable, Foldback Current Limit Soft-Start and Soft-Stop Power-Good Output 150kHz to 1.2MHz Switching Frequency per Phase 28-Lead QSOP Package MAX.

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Full PDF Text Transcription

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19-2855; Rev 2; 4/05 www.DataSheet4U.com 2- to 8-Phase VRM 10/9.1 PWM Controllers with Precise Current Sharing and Fast Voltage Positioning General Description The MAX8525 (VRM 10/VRD 10)/MAX8524 (VRM 9.1/ VRD 9.1) current-mode step-down controllers, the MAX8523 high-speed, dual-phase MOSFET gate driver, and the MAX8552 wide-input, single-phase MOSFET gate driver provide flexible, low-cost, low-voltage CPU core supplies. The MAX8523 and MAX8552 high-speed, high-current gate drivers allow operation at high switching frequencies to reduce external component size and cost for small-footprint, low-profile designs.
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