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APW7116

ANPEC
Part Number APW7116
Manufacturer ANPEC
Description 3-in-1 Dual PWM Buck and Linear DDR Power Controller
Published Aug 15, 2020
Detailed Description APW7116 3-in-1 Dual PWM Buck and Linear DDR Power Controller Features • Provide Synchronous Rectified Buck PWM Control...
Datasheet PDF File APW7116 PDF File

APW7116
APW7116

Overview
APW7116 3-in-1 Dual PWM Buck and Linear DDR Power Controller Features • Provide Synchronous Rectified Buck PWM Controllers for VDDQ and VMCH • Integrated Power FETs with VTT Regulator Source/Sink up to 2.
0A • Drive Low Cost N-Channel Power MOSFETs • Internal 0.
8V Reference Voltage for Adjustable VDDQ and VMCH • Thermal Shutdown • VTT Tracks at Half the Reference Voltage • Fixed Switching Frequency of 250kHz for VDDQ and VMCH • Over Current Protection and Under Voltage Protection for VDDQ and VMCH • Fully Complies with ACPI Power Sequencing Specifications • 180 degrees Phase Shift between VDDQ and VMCH • Power Okay Function for VDDQ and VMCH • Fast Transient Response - Maximum Duty Cycle 90% - High-Bandwidth Error Amplifier • Simple single-Loop Control Design - Voltage Mode PWM Control - External Compensation • External Soft-Start for VDDQ and VMCH • Shutdown Function for VDDQ/VTT and VMCH • Thermally Enhanced TSSOP-24 Package • Lead Free Available (RoHS Compliant) General Description The APW7116 integrates Dual PWM buck controllers and an internal linear regulator for DDR memory and MCH power solution.
The two synchronous PWM buck controllers drive four N-channel MOSFETs for DDR memory supply voltage (VDDQ) and MCH regulator.
The internal regulator is designed to track at the half of the reference voltage with sourcing and sinking current for DDR memory termination regulator (VTT).
The APW7116 uses the latched BUF_Cut signal and the POR of the BOOT to comply with ACPI power sequencing specifications.
The two PWM regulators also provide POK signals to indicate the regulators are good.
The device also has the phase shift function between the two PWM controllers.
The protection functions of the two PWM controllers include over current protection, under voltage protection and external soft-start function.
The VTT regulator provides 2A sinking and sourcing current limit function and also has thermal shutdown protection.
The TSSOP-24-P package with a copper pad provide...


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