2.1MHz, 20A Multi-Phase Step-Down Converter with I²C Interface

RTQ2134-QA

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.

Applications

Automotive Systems

Key Spec.

	RTQ2134-QA
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)

Features

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