TPS51124RGET

Switching Frequency :
Duty Cycle (Max) :
Maximum Operating Temperature : + 85 C
Mounting Style : SMD/SMT
Number of Outputs : 2
Input Voltage : 3 V to 28 V
Package / Case : QFN-24
Output Current : 15 A
Output Voltage : 0.75 V to 5.5 V


Description

The TPS51124RGET belongs to the TPS51124 family, which is a dual, adaptive on-time D-CAP™ mode synchronous buck controller. The part enables system designers to cost effectively complete the suite of notebook power bus regulators with the absolute lowest external component count and lowest standby consumption. The fixed frequency emulated adaptive on-time control of TPS51124RGET  supports seamless operation between PWM mode at heavy load condition and reduced frequency operation at light load for high efficiency down to milliampere range. The main control loop for the TPS51124 uses the D-CAP mode that optimized for low ESR output capacitors such as POSCAP or SP-CAP promises fast transient response with no external compensation. Simple and separate power good signals for each channel allow flexibility of power sequencing.

The features of TPS51124RGET are (1) high efficiency; low-power consumption; shutdowns to <1 µA; (2) fixed frequency emulated on-time control; frequency selectable from three options; (3) auto-skip mode; (4) D-CAP™ mode enables fast transient response; (5) low output ripple; (6) less than 1% initial reference accuracy; (7) output voltage range: 0.76 v to 5.5 v; (9) wide input voltage range: 3 v to 28 v; (10) low-side RDS(ON) loss-less current sensing; (11) adaptive gate drivers with integrated boost diode; (12) power-good signals for each channel with delay timer; (13) internal 1.2-ms voltage-servo soft start; (14) output discharge during disable; fault; which can be used in notebook i/o and low voltage system bus.

The absolute maximum ratings of TPS51124RGET (note1: Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress rating only and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. ) of TPS51125RGET (over operating free-air temperature range (unless othenrvise noted)) are Input voltage range(note1)(1)(VBST1, VBST2 -0.3 to 36V, VBST1, VBST2(wrt LLx): -0.3 to 6V; (2)V5IN, V5FILT, EN1, EN2, VFB1, VFB2, VO1, VO2, TONSEL, TRIP1: -0.3 to 6V; (3)output voltage range DRVH1, DRVH2: -1.0 to 36V; (4)DRVH1, DRVH2(wrt LLx): -0.3 to 6V; (5)LL1,LL2: -2 to 30V, PGOOD1, PGOOD2, DRVL1, DRVL2: -0.3 to 6V; (6)PGND1, PGND2: -0.3 to 0.3 V; Junction temperature range: -40 to 125 ,;Tstg(storage temperature): -55 to 150; TA(operating amibient temperature range): -40 to 85.

Parameters:

Technical/Catalog Information	TPS51124RGET
Vendor	Texas Instruments (VA)
Category	Integrated Circuits (ICs)
Type	Step-Down (Buck)
Number of Outputs	2
Voltage - Input	3 ~ 28 V
Voltage - Output	0.76 ~ 5.5 V
Current - Output	15A
Power - Output	2.33W
Package / Case	24-VQFN
Packaging	Cut Tape (CT)
Internal Switch(s)	No
Synchronous	Yes
Rds (On)	-
Operating Temperature	-40°C ~ 85°C
Frequency - Switching	Up to 420kHz
Drawing Number	296; 4204104-2; RGE; 24
Lead Free Status	Lead Free
RoHS Status	RoHS Compliant
Other Names	TPS51124RGET TPS51124RGET 296 19295 1 ND 296192951ND 296-19295-1