TPS51117RGYT

Duty Cycle (Max) :
Number of Outputs : 1
Maximum Operating Temperature : + 85 C
Mounting Style : SMD/SMT
Switching Frequency : 500 KHz
Output Current : 10 A
Output Voltage : 0.75 V to 5.5 V
Input Voltage : 1.8 V to 28 V
Package / Case : VQFN-14


Description

The TPS51117RGYT is a kind of TPS51117 which is a cost effective, synchronous buck controller for POL voltage regulation in notebook PC applications. The controller TPS51117RGYT is dedicated for Adaptive On-Time D-CAP Mode operation that provides ease of use, low external component count, and fast transient response. Auto-skip mode for high efficiency down to the milli-ampere load range, or PWM-only mode for low noise operation is selectable. The current sensing scheme for positive overcurrent and negative overcurrent protection is loss-less low-side RDS(on) sensing plus temperature compensation. The TPS51117RGYT receives a 5-V (4.5 V to 5.5 V) supply from another regulator such as the TPS51120 or TPS51020. The conversion input can be either VBAT or a 5-V rail, ranging from 1.

The features of TPS51117RGYT are (1) high efficiency, low power consumption, 4.5-µA typical shutdown current; (2) fixed frequency emulated on-time control, adjustable from 100 kHz to 550 kHz; (3) output voltage range: 0.75 V to 5.5 V; (4) wide input voltage range: 1.8 V to 28 V; (5) selectable auto-skip/PWM-only operation; (6) inegative overcurrent limit; (7) integrated boost diode; (8) power-good signal; (9) internal 1.2-ms voltage softstart; (10) integrated output discharge (softstop); (11) temperature compensated (4500 ppm/°c) low-side RDS(on) overcurrent sensing; (12) D-CAP™ Mode with 100-ns load step response < 1% initial reference accuracy; (13) integrated OVP/UVP and thermal shutdown, which can be used in notebook computers; I/O supplies and system power supplies.

The absolute maximum ratings(Stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. These are stress ratings 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 TPS51117RGYT for input voltage rangevoltage range are (1)VBST: -0.3 to 36V; (2) VBST (with respect to LL): -0.3 to 6V; (3) EN_PSV, TRIP, V5DRV, V5FILT: -0.3 to 6V; (4) VOUT: -0.3 to 6V; (5)TON: -0.3 to 6V, for output voltage range are (1)DRVH: -1 to 36V; (2) DRVH (with respect to LL) -0.3 to 6V; (3) LL: -1 to 30V; (4) PGOOD, DRVL: -0.3 to 6V; (5) PGND: -0.3 to 0.3V, TA (operating free-air temperature): -40 to 85; Tstg (torage temperature range): -55 to 150 ; TJ(junction temperature range):  -40 to 125; lead temperature 1,6 mm (1/16 inch) from case for 10 seconds: 260.

Parameters:

Technical/Catalog Information	TPS51117RGYT
Vendor	Texas Instruments
Category	Integrated Circuits (ICs)
Type	Step-Down (Buck)
Number of Outputs	1
Voltage - Input	1.8 ~ 28 V
Voltage - Output	0.75 ~ 5.5 V
Current - Output	10A
Power - Output	1.3W
Package / Case	14-VQFN
Packaging	Tape & Reel (TR)
Internal Switch(s)	No
Synchronous	Yes
Rds (On)	-
Operating Temperature	-40°C ~ 85°C
Frequency - Switching	100kHz ~ 550kHz
Drawing Number	296; 4203539-2; RGY; 14
Lead Free Status	Lead Free
RoHS Status	RoHS Compliant
Other Names	TPS51117RGYT TPS51117RGYT