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TPS51125

具有 100mA LDO 和 Out-of-Audio? 的 4.5V 至 28V 雙通道同步降壓控制器; ? Wide Input Voltage Range: 5.5 V to 28 V\n? Output Voltage Range: 2 V to 5.5 V\n? Built-In 100-mA, 5-V and 3.3-V LDO With Switches\n? Built-In 1% 2-V Reference Output\n? With or Without Out-of-Audio? Mode Selectable Light-Load and PWM-Only Operation\n? Internal 1.6-ms Voltage Servo Soft-Start\n? Adaptive On-Time Control Architecture With Four Selectable Frequency Setting\n? 4500 ppm/\\xC2°C RDS(on) Current Sensing\n? Built-In Output Discharge\n? Powergood Output\n? Built-In OVP/UVP/OCP\n? Thermal Shutdown (Nonlatch)\n? QFN, 24-Pin (RGE)\n? APPLICATIONS \n? Notebook Computers\n? I/O Supplies\n? System Power Supplies\n \n All other trademarks are the property of their respective owners;

The TPS51125 is a cost-effective, dual-synchronous buck controller targeted for notebook system power supply solutions. The device provides 5-V and 3.3-V LDOs and requires few external components. The 270-kHz VCLK output can be used to drive an external charge pump, thus generating gate drive voltage for the load switches without reducing the efficiency of the main converter. The TPS51125 supports high-efficiency, fast-transient response and provides a combined power-good signal. Out-of-Audio mode light-load operation enables low acoustic noise at much higher efficiency than conventional forced PWM operation. Adaptive on-time D-CAP control provides convenient and efficient operation. The part operates with supply input voltages ranging from 5.5 V to 28 V and supports output voltages from 2 V to 5.5 V. The TPS51125 is available in a 24-pin QFN package and is specified from ?40°C to 85°C ambient temperature range.

TPS51125

絲?。?a target="_blank" title="Marking" href="/51125/marking.html">51125；Package：VQFN-244x4；Dual-Synchronous, Step-Down Controller with Out-of-Audio??Operation and 100-mA LDOs for Notebook System Power

TPS51125

絲印：51125；Package：VQFN-244x4；Dual-Synchronous, Step-Down Controller with Out-of-Audio Operation and 100-mA LDOs for Notebook System Power

TPS51125

絲?。?a target="_blank" title="Marking" href="/51125/marking.html">51125；Package：VQFN-244x4；Dual-Synchronous, Step-Down Controller With Out-of-Audio Operation and 100-mA LDOS for Notebook System Power

TPS51125A

具有 100mA LDO 和靈活外部元件的 4.5V 至 28V 雙路同步降壓控制器; ? Wide Input Voltage Range: 5.5 V to 28 V \n? Output Voltage Range: 2 V to 5.5 V\n? Built-in 100-mA 5-V/3.3-V LDO with Switches\n? Built-in 1% 2-V Reference Output\n? With/Without Out-of-Audio? Mode Selectable Light Load and PWM only Operation\n? Internal 1.6-ms Voltage Servo Softstart\n? Adaptive On-Time Control Architecture with Four Selectable Frequency Setting\n? 4500 ppm/°C RDS(on) Current Sensing\n? Built-In Output Discharge\n? Power Good Output\n? Built-in OVP/UVP/OCP\n? Thermal Shutdown (Non-latch)\n? QFN24 (RGE);

The TPS51125A is a cost effective, dual-synchronous buck controller targeted for notebook system power supply solutions. It provides 5-V and 3.3-V LDOs and requires few external components. The 270-kHz VCLK output can be used to drive an external charge pump, generating gate drive voltage for the load switches without reducing the main converter’s efficiency. The TPS51125A supports high efficiency, fast transient response and provides a combined power-good signal. Out-of-Audio mode light-load operation enables low acoustic noise at much higher efficiency than conventional forced PWM operation. Adaptive on-time D-CAP control provides convenient and efficient operation. The part operates with supply input voltages ranging from 5.5 V to 28 V and supports output voltages from 2 V to 5.5 V. The TPS51125A is available in a 24-pin QFN package and is specified from -40°C to 85°C ambient temperature range.

TPS51125_16

Dual-Synchronous, Step-Down Controller With Out-of-Audio Operation and 100-mA LDOS for Notebook System Power

TPS51125A

Dual-Synchronous, Step-Down Controller with Out-of-Audio Operation and 100-mA LDOs for Notebook System Power

TPS51125A

Dual-Synchronous, Step-Down Controller with Out-of-Audio??Operation and 100-mA LDOs for Notebook System Power

TPS51125A_15

Dual-Synchronous, Step-Down Controller with Out-of-Audio??Operation and 100-mA LDOs for Notebook System Power

TPS51125A_17

Dual-Synchronous, Step-Down Controller with Out-of-Audio Operation and 100-mA LDOs for Notebook System Power