TPS51220ARSNR - TI

The pictures are for reference only, and the specific specifications can be found in the product manual.

Part No

TPS51220ARSNR
Manufacturer

TI
ChipWorker Part#

CW11604800
Category

Voltage Regulator
Package

QFN-32
Description

DC-DC Controller (External Switch) Fixed-Frequency, 99% Duty Cycle Peak Current-Mode Notebook System Pwr Controller Current Mode PWM Controller 1V to 12V 20A 32Pin WQFN EP T/R
Documentation

Datasheet

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TPS51220ARSNR Specifications

Attribute	Attribute Value

Part Number	TPS51220ARSNR
Manufacturer	TI
ChipWorker Part#	CW11604800
Category	Voltage Regulator
Documentation	Datasheet
Mounting Style	Surface Mount
Number of Pins	32 Pin
Case/Package	QFN-32
Number of Outputs	2 Output
Output Voltage	1V ~ 12V
Output Current	20 A
Power Dissipation	2.3 W
Quiescent Current	1.30 mA
Number of Regulated Outputs	2 Output
Switching Frequency	1000 kHz
Thermal Shutdown	Yes
Topology	Buck
Duty Cycle	99 %
Maximum Duty Cycle	99 %
Supply Voltage	4.5V ~ 32V
Input Voltage	4.5V ~ 32V
	expand all
Operating Temperature	-40℃ ~ 85℃
Product Lifecycle Status	Active
Packaging	Tape & Reel (TR)
RoHS	RoHS Compliant
Lead-Free Status	Lead Free
ECCN Code	EAR99

Product Description

DESCRIPTION
The TPS51220A is a dual synchronous buck regulator controller with two LDOs. It is optimized for 5-V/3.3-V system controller, enabling designers to cost effectively complete 2-cell to 4-cell notebook system power supply. The TPS51220A supports high efficiency, fast transient response, and 99% duty cycle operation. It supports supply input voltage ranging from 4.5 V to 32 V, and output voltages from 1 V to 12 V. Two types of control schemes can be chosen depending on the application. Peak current mode supports stability operation with lower ESR capacitor and output accuracy.
FEATURES
• Input Voltage Range: 4.5 V to 32 V
• Output Voltage Range: 1 V to 12 V
• Selectable Light Load Operation(Continuous / Auto Skip / Out-Of-Audio™ Skip)
• Programmable Droop Compensation
• Voltage Servo Adjustable Soft Start
• 200-kHz to 1-MHz Fixed-Frequency PWM
• Selectable Current/D-CAP™ Mode Architecture
• 180° Phase Shift Between Channels
• Resistor or Inductor DCR Current Sensing
• Adaptive Zero Crossing Circuit
• Powergood Output for Each Channel
• OCL/OVP/UVP/UVLO Protections (OVP Disable Option)
• Thermal Shutdown (Non-Latch)
• Output Discharge Function (Disable Option)
• Integrated Boot Strap MOSFET Switch
• QFN-32 (RTV) Package
APPLICATIONS
• Notebook Computer System and I/O Bus
• Point of Load in LCD TV, MFP

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