TPS51220RHBR - TI

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

Part No

TPS51220RHBR
Manufacturer

TI
ChipWorker Part#

CW10073900
Category

Voltage Regulator
Package

VQFN-32
Description

DC-DC Controller (External Switch) Fixed Frequency, 99% Duty Cycle Peak Current Mode Notebook System Power Controller DC DC Cntrlr Dual-OUT Sync Buck 4.5V to 28V Input 32Pin VQFN EP T/R
Documentation

Datasheet

TPS51220RHBR Global Supplier

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TPS51220RHBR Specifications

Attribute	Attribute Value

Part Number	TPS51220RHBR
Manufacturer	TI
ChipWorker Part#	CW10073900
Category	Voltage Regulator
Documentation	Datasheet
Mounting Style	Surface Mount
Number of Pins	32 Pin
Case/Package	VQFN-32
Supply Voltage (DC)	28.0 V
Number of Outputs	2 Output
Output Voltage	1V ~ 12V
Output Current	20 A
Number of Positions	32 Position
Power Dissipation	900 mW
Quiescent Current	1.30 mA
Number of Regulated Outputs	2 Output
Switching Frequency	303 kHz
Thermal Shutdown	Yes
Topology	Buck
Input Voltage (Max)	28 V
Input Voltage (Min)	4.5 V
Output Current (Max)	20 A
Operating Temperature (Max)	85 ℃
Operating Temperature (Min)	-40 ℃
Power Dissipation (Max)	900 mW
Supply Voltage	28 V
Input Voltage	4.5V ~ 28V
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Operating Temperature	-40℃ ~ 85℃
Product Lifecycle Status	Active
Packaging	Tape & Reel (TR)
RoHS	RoHS Compliant
Lead-Free Status	Lead Free
REACH SVHC Compliance Edition	2015/06/15

Product Description

The TPS51220RHBR is a fixed frequency, notebook system Power Controller, dual synchronous buck regulator controller with 2 LDOs. It is optimized for 5/3.3V system controller, enabling designers to cost effectively complete 2-cell to 4-cell notebook system power supply. The TPS51220 supports high efficiency, fast transient response and 99% duty cycle operation. It supports supply input voltage ranging from 4.5 to 28V and output voltages from 1 to 12V. 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. The D-CAP mode supports fast transient response. The high duty (99%) operation and the wide input/output voltage range supports flexible design for small mobile PCs and a wide variety of other applications. The fixed frequency can be adjusted from 200kHz to 1MHz by a resistor and each channel runs 180° out of phase.
Selectable light load operation (continuous / auto skip / out-of-audio skip)
Programmable droop compensation
Voltage servo adjustable soft start
Selectable current/D-CAP mode architecture
180° Phase shift between channels
Resistor or inductor DCR current sensing
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

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