Datasheet4U Logo Datasheet4U.com

TPS51125 Datasheet Step-down Controller

Manufacturer: Texas Instruments

Overview: Product Folder Sample & Buy Technical Documents Tools & Software Support & Community TPS51125 SLUS786H – OCTOBER 2007 – REVISED JANUARY 2015 TPS51125 Dual-Synchronous, Step-Down Controller With Out-of-Audio™ Operation.

General Description

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.

Key Features

  • 1 Wide Input Voltage Range: 5.5 V to 28 V.
  • Output Voltage Range: 2 V to 5.5 V.
  • Built-In 100-mA, 5-V and 3.3-V LDO With Switches.
  • Built-In 1% 2-V Reference Output.
  • With or Without Out-of-Audio™ Mode Selectable Light-Load and PWM-Only Operation.
  • Internal 1.6-ms Voltage Servo Soft-Start.
  • Adaptive On-Time Control Architecture With Four Selectable Frequency Setting.
  • 4500 ppm/°C RDS(on) Current Sensing.
  • Built-In Output Di.

More Datasheets from Texas Instruments

Part Number Description
TPS51125A Step-Down Controller
TPS51120 Synchronous Step-Down Controller
TPS51123 Step-Down Controller
TPS51123A Step-Down Controller
TPS51124 Dual Synchronous Step-Down Controller
TPS5110 Synchronous Buck PWM Controller
TPS51100 Source DDR Termination Regulator
TPS51103 INTEGRATED LDO
TPS51113 SYNCHRONOUS BUCK CONTROLLER
TPS51116 Synchronous Buck Controller

TPS51125 Distributor