The RTQ2134 is a multi-phase, programmable power management IC that integrates with four high efficient, synchronous step-down converter cores. The RTQ2134 can be 2 + 2 and 2 + 1 + 1 output by OTP. It also features wide output voltage range and the capability to configure the corresponding power stages, which make the device optimized to meet power management requirements for low-power processors, such as core power for CPUs and GPUs. The RTQ2134 supports many programmable functions including voltage level, slew rate of voltage change, and slew rate of soft-start via an I2C interface capable of operating up to 3.4MHz. The RTQ2134 also supports remote-sense function to get accurate output voltage at large loading. Moreover, the device has interrupt and fault-detection function to report error status. The RTQ2134 is available in a WET-WQFN-30L 4.5x5 (FC) package.


  • Automotive Systems
Key Spec.
Status Active
Vin (min) (V) 3
Vin (max) (V) 6
Number of Outputs 3
Vout (min) (V) 0.3
Vout (max) (V) 1.85
Output Adj. Method Digital
Iout (max) (A) 5.5
Current Limit (typ) (A) 7
Freq (typ) (kHz) 2100
Ext Sync No
Ron_HS (typ) (mOhm) 25
Ron_LS (typ) (mOhm) 15
Iq (typ) (mA) 0.07
Interface I2C
Features ACOT Control;AEC-Q100;Cycle-by-Cycle Current Limit;Enable Input;Fast Transient Response;OCP;OTP;OVP;SCP;Selectable (PSM or PWM);Stable with Ceramic Capacitor;UVP
Package Type WET-WQFN4.5x5-30(FC)
  • FMEA Compliant PinOut
  • AEC-Q100 Grade1 Qualified
  • 2 + 2/2 + 1 + 1 Phase Output
  • I2C Programmable Output Voltage: 0.3V to 1.85V
  • Maximum Output Current: Total 20A, 5.5A per Phase
  • Output Remote Sense
  • Fast Transient Response
  • Input Supply Voltage Range: 3V to 6V
  • Selectable Automatic Phase Shielding and Power Saving Mode Enables Higher Light Load Efficiency
  • Dynamic Voltage Scaling (DVS) with Programmable Slew Rate for Each Output
  • Programmable Soft-Start Function
  • Interrupt Function and Fault Detection
  • Watchdog Function
  • Input Undervoltage Lockout (UVLO)
  • Cycle by Cycle Current Limit
  • Output Undervoltage Protection
  • Over-Temperature Protection
  • WET-WQFN-30L 4.5x5 (FC)
  • Junction Temperature Range: -40°C to 150°C
TitleLast UpdateDownload
2.1MHz, 20A Multi-Phase Step-Down Converter with I2C Interface2020/08/05
Reference Design
TitleLast UpdateDownload
Richtek Load Transient Tool2022/07/25
Part NumberPackage TypePackage Qty.Free SampleBuy From Authorized Distributor
RTQ2134GQWTF-21-QA-00WET-WQFN4.5x5-30(FC)1500 Request Buy from Distributor
RTQ2134GQWTF-22-QA-01WET-WQFN4.5x5-30(FC)1500 Request Buy from Distributor