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TPS51125ARGERTIN/a801avaiDual-Synchronous, Step-Down Controller with Out-of-Audio Operation and 100-mA LDOs 24-VQFN -40 to 85
TPS51125ARGETTIN/a104avaiDual-Synchronous, Step-Down Controller with Out-of-Audio Operation and 100-mA LDOs 24-VQFN -40 to 85


TPS51125ARGER ,Dual-Synchronous, Step-Down Controller with Out-of-Audio Operation and 100-mA LDOs 24-VQFN -40 to 85FEATURES APPLICATIONS2• Wide Input Voltage Range: 5.5 V to 28 V • Notebook Computers• Output Voltag ..
TPS51125ARGET ,Dual-Synchronous, Step-Down Controller with Out-of-Audio Operation and 100-mA LDOs 24-VQFN -40 to 85maximum ratings" may cause permanent damage to the device. These are stress ratingsonly and functio ..
TPS51125RGER ,Dual-Synchronous, Step-Down Controller with Out-of-AudioT Operation and 100-mA LDOs 24-VQFN -40 to 85Sample & Support &Product Tools &TechnicalCommunityBuyFolder Documents SoftwareTPS51125SLUS786H–OCT ..
TPS51125RGET ,Dual-Synchronous, Step-Down Controller with Out-of-AudioT Operation and 100-mA LDOs 24-VQFN -40 to 85Block Diagram... 15Information..... 304 Revision HistoryNOTE: Page numbers for previous revisions m ..
TPS51125RGET ,Dual-Synchronous, Step-Down Controller with Out-of-AudioT Operation and 100-mA LDOs 24-VQFN -40 to 85Features 3 DescriptionThe TPS51125 is a cost-effective, dual-synchronous1• Wide Input Voltage Range ..
TPS51125RGETG4 ,Dual-Synchronous, Step-Down Controller with Out-of-AudioT Operation and 100-mA LDOs 24-VQFN -40 to 85Features... 17.4 Device Functional Modes.... 222 Applications..... 18 Application and Implementatio ..
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TPS51125ARGER-TPS51125ARGET
Dual-Synchronous, Step-Down Controller with Out-of-Audio Operation and 100-mA LDOs 24-VQFN -40 to 85
TPS51125A
www.ti.com
SLUS976F –SEPTEMBER 2009–REVISED SEPTEMBER 2012
Dual-Synchronous, Step-Down Controller with Out-of-Audio™ Operation
and 100-mA LDOs for Notebook System Power
Checkfor Samples: TPS51125A
1FEATURES APPLICATIONS Wide Input Voltage Range: 5.5Vto28V • Notebook Computers Output Voltage Range:2Vto 5.5V • I/O Supplies Built-in 100-mA 5-V/3.3-V LDO with Switches • System Power Supplies Built-in 1% 2-V Reference Output DESCRIPTION• With/Without Out-of-Audio™ Mode Selectable
The TPS51125Aisa cost effective, dual-synchronousLight Load and PWM only Operation buck controller targeted for notebook system power• Internal 1.6-ms Voltage Servo Softstart supply solutions.It provides 5-V and 3.3-V LDOs and Adaptive On-Time Control Architecture with requires few external components. The 270-kHz
VCLK output can be usedto drive an external chargeFour Selectable Frequency Setting
pump, generating gate drive voltage for the load• 4500 ppm/°C RDS(on) Current Sensing switches without reducing the main converter’s• Built-In Output Discharge efficiency. The TPS51125A supports high efficiency, Power Good Output fast transient response and providesa combined
power-good signal. Out-of-Audio™ mode light-load• Built-in OVP/UVP/OCP operation enables low acoustic noiseat much higher• Thermal Shutdown (Non-latch) efficiency than conventional forced PWM operation. QFN24 (RGE) Adaptive on-time D-CAP™ control provides
convenient and efficient operation. The part operates
with supply input voltages ranging from 5.5Vto28V
and supports output voltages from2Vto 5.5V. The
TPS51125Ais availableina 24-pin QFN package
and is specified from -40°C to 85°C ambient
temperature range.
Table1. Differences between the TPS51125 and TPS51125A
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