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fp9968

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ddr5 client vr-on-dimm pmic

introduction



the fp9968 is an integrated solution for ddr5 sodimm and udimm power management ic. the pmic features three buck converters and two ldo regulators. the buck converters are designed by fast constant on time (fcot) control that provides fast transient response, the noise immunity and all kinds of very low esr output capacitor for ensuring performance stabilization. all three buck converters equip with automatic power saving mode (psm) for optimizing efficiency. the two ldo regulators, vout_1.0v and vout_1.8v, can supply dimm module's sideband and sdp usage. the pmic supports selectable interface (i2c or i3c basic) to fit various application environment.

two of the buck converters (swa and swb) can be configured to operate in dual-phase single channel. two adcs are implemented to monitor the current consumptions of the buck converters and the voltage information of the input/output rails.

the fp9968 is available in low-profile thermal enhanced tqfn-28l (3mmx4mm) package.

feature
  • vin_bulk input supply range: 4.25v to 5.5v
  • three buck converters: swa, swb & swc
  • configurable dual phase and single phase node for swa and swb
  • 0.75% output accuracy
  • configurable switching frequency of buck
  • fcot mode enables fast transient response
  • 2 ldo regulators: vout_1.8v, vout_1.0v
  • secure mode and programmable mode of operation
  • supports i2c and i3c interface
  • controllable soft-start /soft-stop time of buck
  • protection functions, including ovp, uvp, ocp and otp
  • power good indicator
  • general status interrupt function
  • tqfn-28l (3mmx4mm) package
  • rohs compliant
package & pins
purchase
part name package request
fp9968j15 tqfn-28l (3mmx4mm)

sample request

technical support

documents
title file release date
2024/01/11
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