TPS51125RGET

Switching Frequency :
Duty Cycle (Max) :
Maximum Operating Temperature : + 85 C
Mounting Style : SMD/SMT
Number of Outputs : 2
Package / Case : QFN-24
Output Current : 20 A
Input Voltage : 5.5 V to 28 V
Output Voltage : 2 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 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 TPS51125RGET are (1) wide input voltage range: 5.5 V to 28 V; (2) with/without out-of-audio™ mode selectable light load and PWM only operation; (3) output voltage range: 2 V to 5.5 V; (4) 4500 ppm/°C RDS(on) current sensing; (5) built-in 100-mA 5-V/3.3-V LDO with switches; (12) built-in 1% 2-v reference output; (6) internal 1.6-ms voltage servo softstart; (7) adaptive on-timecontrol architecture with four selectable frequency setting; (8) built-in output discharge; (9) QFN24 (RGE); (10) power good output; (11) built-in OVP/UVP/OCP; (12) thermal shutdown (non-latch). It can be applicated in notebook computers; I/O supplies and system power supplies.

The absolute maximum ratings of TPS51125RGET (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/Output vantage range (note1)(VBST1, VBST2 -0.3 to 36V; VIN: -0.3 to 30 V, LL1, LL2: -2.0 to 30V; VBST1, VBST2(note2:  Voltage values are with respect to the corresponding LLx terminal. )), ENO, ENTRIP1, ENTRIP2, VFB1, VFB2, VO1, VO2, TONSEL, SKIPSEL: -0.3 to 6V; DRVH1, DRVH2: -1.0 to 36V;  DRVH1, DRVH2(NOTE2): -0.3 to 6V; PGOOD, VCLK, VREG3, VREG5, VREF, DRVL1, DRVL2: -0.3 to 6V; Junction temperature range: -40 to 125 ; Tstg (storage temperature):-55 to 150.

Parameters:

Technical/Catalog Information	TPS51125RGET
Vendor	Texas Instruments (VA)
Category	Integrated Circuits (ICs)
Type	Step-Down (Buck)
Number of Outputs	2
Voltage - Input	5.5 ~ 28 V
Voltage - Output	2 ~ 5.5 V
Current - Output	-
Power - Output	1.85W
Package / Case	24-VQFN
Packaging	Cut Tape (CT)
Internal Switch(s)	No
Synchronous	Yes
Rds (On)	-
Operating Temperature	-40°C ~ 85°C
Frequency - Switching	-
Drawing Number	296; 4204104-2; RGE; 24
Lead Free Status	Lead Free
RoHS Status	RoHS Compliant
Other Names	TPS51125RGET TPS51125RGET 296 22712 1 ND 296227121ND 296-22712-1