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TPS51220ARTVR Power Path Management IC Switching Controllers Fixed-Freq,Notebook Sys Pwr Controller

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ChongMing Group (HK) Int'l Co., Ltd

City: shenzhen

Country/Region:china

Tel:86-755-88367702

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Ms.Doris Guo
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TPS51220ARTVR Power Path Management IC Switching Controllers Fixed-Freq,Notebook Sys Pwr Controller

Brand Name Ti
Model Number TPS51220ARTVR
Price 
Mounting Style SMD/SMT
Output Voltage 1 V to 12 V
Duty Cycle - Max 99 %
Maximum Operating Temperature + 85 C
Minimum Operating Temperature - 40 C
Number of Outputs 2 Output
Detailed Product Description

TPS51220ARTVR Power Path Management IC Switching Controllers Fixed-Freq,Notebook Sys Pwr Controller

 

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-AudioTM Skip)

  • Programmable Droop Compensation

  • Voltage Servo Adjustable Soft Start

  • 200-kHz to 1-MHz Fixed-Frequency PWM

  • Selectable Current/ D-CAPTM 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/RSN) Package

 

APPLICATIONS
• Notebook Computer System and I/O Bus

• Point of Load in LCD TV, MFP

 

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. 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 200 kHz to 1 MHz by a resistor, and each channel runs 180° out-of-phase. The TPS51220A can also synchronize to the external clock, and the interleaving ratio can be adjusted by its duty. The TPS51220A is available in the 32-pin 5×5/4×4 QFN package and is specified from –40°C to 85°C.

Product Tags: power management integrated circuit   battery charge management ic  
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