General Description

The RTQ5119A is an integrated solution for DDR5

R/LRDIMM and NVDIMM power management IC. This

device provides 4 single Buck voltage regulators (SWA,

SWB, SWC and SWD) and 3 LDOs (VLDO_1.0V,

VLDO_1.8V and VBIAS). Among the four voltage

regulators, the SWA and SWB can operate either in

single phase mode or dual phase mode. Moreover, the

RTQ5119A supports selectable interface (I2C or I3C

Basic) to fit various application environment. A complete

protection mechanism is also embedded for safe power

distribution and the corresponding fault events can be

recorded by the registers as well as CAMP and GSI_n

open-drain indicators. The RTQ5119A is available in a

VQFN-35L.5x5-FC package.

Features

⚫ Efficiency Up to 91.5 for Each Buck Converter

⚫ Smart Protection Unit Provides Best Protection

Shutdown Sequence Control

⚫ Dual-Phase DEM Operation Implements Good

Light Load Efficiency and Good Transient

Response

⚫ Output Valley Current Limit for Bucks

⚫ Meet JEDEC DDR5 PMIC5010 Specification

 PMIC50x0 Compatible Package: VQFN-35L 5x5

(FC)

 Wide Input Supply Range: 4.25V to 15V

 VIN_MGMT Input Supply Range: 3V to 3.6V

 High Integration: 4 x Bucks (3.5A) and 3 LDOs

 Configurable Dual-Phase or Single-Phase

Converters (SWA, SWB)

 Single-Phase Converters (SWC, SWD)

 LDOs (VBIAS, VLDO_1.8V, VLDO_1.0V)

 Automatic Input Supply Switch-over for LDOs

 MTP Registers with Secured R/W Access

 Support I2C / I3C Basic Slave Control

 0.75 Converter Output Accuracy

 Support Pure MLCC Output Capacitor Stable

 Telemetry for Output Current, Voltage and

Power

 Error Log Counter & Data Storage (NVM)

 Complete Protection Mechanisms

Applications

⚫ DDR5 LR-/RDIMM, NVDIMM