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TI TPS51117RGYRRoHS

Manufacturer
TI
MPN
TPS51117RGYR
LCSC Part #
C139293
Packaging
VQFN-14-EP(4x4)
Customer #
Key Attributes
TPS51117 Synchronous Buck Controller
Datasheetpdf iconTI TPS51117RGYR
In-Stock: 170
170 In stock, ships now
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QtyUnit PriceTotal Amount
5+$ 0.2877$ 1.44
50+$ 0.2242$ 11.21
150+$ 0.197$ 29.55
500+$ 0.163$ 81.50
3,000+$ 0.1478$ 443.40
6,000+$ 0.1388$ 832.80
Standard Packaging3000/Full Reel
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Products Specifications

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TypeDescription
CategoryIntegrated Circuits (ICs)/Power Management (PMIC)/DC DC Switching Controllers
ManufacturerTI
PackagingVQFN-14-EP(4x4)
Synchronous RectifierYes
FeaturesCycle-by-cycle current limiting;Output discharge;Light load efficient mode;Operating status indication;Overcurrent Protection
Number of Channels1
TopologyBuck
Operating Voltage4.5V~5.5V
Switch tube (built-in/external)External
Output Voltage750mV~5.5V
Operating Temperature-40℃~+85℃@(TA)
Output Current-
Frequency - Switching550kHz
Output TypeAdjustable
FunctionStep-down type
Quiescent Current400uA
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Additional Information

TypeDetails
Minimum5
Multiple5
Standard Packaging3000
Sales UnitPiece

Introduction

AI Translation

The TPS51117 device is a cost-effective, synchronous buck controller for POL voltage regulation in notebook PC applications. The controller is dedicated for the operation of the Adaptive OnTime D-CAP mode. This mode provides ease-of-use, low external component count, and fast transient response. Auto-skip mode for high efficiency down to the milliampere 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 lowside RDS(on) sensing plus temperature compensation. The device 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 1.8 V to 28 V, and the output voltage range is from 0.75 V to 5.5 V. The TPS51117 is available in a 14-pin VQFN or a 14-pin TSSOP package and is specified from -40°C to 85°C.

Features

AI Translation
  • High Efficiency, Low Power Consumption, 4.5 μA Typical Shutdown Current
  • Fixed Frequency Emulated On-Time Control, Adjustable from 100 kHz to 550 kHz
  • D-CAP™ Mode With 100-ns Load Step Response
  • <1% Initial Reference Accuracy
  • Output Voltage Range: 0.75 V to 5.5 V
  • Wide Input Voltage Range: 1.8 V to 28 V
  • Selectable Auto-Skip/PWM-Only Operation
  • Temperature Compensated (4500 ppm/°C)
  • Low-Side RDS(on) Overcurrent Sensing
  • Negative Overcurrent Limit
  • Integrated Boost Diode
  • Integrated OVP/UVP and Thermal Shutdown
  • Powergood Signal
  • Internal 1.2-ms Voltage Soft-Start
  • Integrated Output Discharge (Soft-Stop)

Applications

AI Translation
  • Notebook Computers
  • I/O Supplies
  • System Power Supplies