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TPS51120

具有低待機電流消耗的 4.5V 至 28V 雙通道同步降壓控制器; ? 3.3-V and 5-V 100-mA Bootstrapped Standby Regulators with Independent Enables\n? Selectable D-CAP? Mode Enables Fast Transient Response Less than 100 ns\n? Selectable Low Ripple Current Mode\n? Less than 1% Internal Reference Accuracy\n? Selectable PWM-only/Auto-skip Modes\n? Low-side RDS(on) Loss-less Current Sensing\n? RSENSE Accurate Current Sense Option\n? Internal Soft-Start and Integrated VOUT Discharge Transistors\n? Integrated 2-V Reference \n? Adaptive Gate Drivers with Integrated Boost Diode\n? Powergood for Each Channel with Delay Timer\n? Fault Disable Mode\n? Supply Input Voltage Range: 4.5 V to 28 V;

The TPS51120 is a highly sophisticated dual, synchronous step-down controller. It is a full featured controller designed to run directly off a three- or four-cell Li-ion battery and provide high-power and 5-V and/or 3.3-V standby regulation for all the downstream circuitry in a notebook computer system. High-current, 100-mA, 5-V or 3.3-V on-board linear regulators have glitch-free switch over function to SMPS and can be kept alive independently during standby state. The pseudo-constant frequency adaptive on-time control scheme supports full range of current mode operation including simplified loop compensation, ceramic output capacitors as well as seamless transition to reduced frequency operation at light-load condition. Optional D-CAP mode operation optimized for SP-CAP or POSCAP output capacitors allows further reduction of external compensation parts. Dynamic UVP supports VIN line sag without latch off by hitting 5-V UVP. No negative voltage appears at output voltage node during UVLO, UVP, and OCP, OTP or loss of VIN.\n\nThe TPS51120 32-pin QFN package is specified from ?40°C to 85°C ambient temperature.

TPS51120

DUAL CURRENT MODE, SYNCHRONOUS STEP-DOWN CONTROLLER WITH 100-mA STANDBY REGULATORS FOR NOTEBOOK SYSTEM POWER

TPS51120_15

TPS51120 Dual, Synchronous Step-Down Controller With 100-mA Standby Regulators for Notebook System Power

TPS51120RHBR

DUAL CURRENT MODE, SYNCHRONOUS STEP-DOWN CONTROLLER WITH 100-mA STANDBY REGULATORS FOR NOTEBOOK SYSTEM POWER

TPS51120RHBRG4

DUAL CURRENT MODE, SYNCHRONOUS STEP-DOWN CONTROLLER WITH 100-mA STANDBY REGULATORS FOR NOTEBOOK SYSTEM POWER

TPS51120RHBT

DUAL CURRENT MODE, SYNCHRONOUS STEP-DOWN CONTROLLER WITH 100-mA STANDBY REGULATORS FOR NOTEBOOK SYSTEM POWER

TPS51120RHBTG4

DUAL CURRENT MODE, SYNCHRONOUS STEP-DOWN CONTROLLER WITH 100-mA STANDBY REGULATORS FOR NOTEBOOK SYSTEM POWER

TPS51120RHBR

Package：32-VFQFN 裸露焊盤；包裝：管件 功能：降壓 類別：集成電路（IC） PMIC - 穩(wěn)壓器 - DC DC 開關(guān)式控制器 描述：IC REG CTRLR BUCK 32QFN

TPS51120RHBR

Package：32-VFQFN 裸露焊盤；包裝：管件 功能：降壓 類別：集成電路（IC） DC-DC 開關(guān)控制器 描述：IC REG CTRLR BUCK 32QFN

TPS51120RHBT

Package：32-VFQFN 裸露焊盤；包裝：卷帶（TR）剪切帶（CT）Digi-Reel? 得捷定制卷帶 功能：降壓 類別：集成電路（IC） DC-DC 開關(guān)控制器 描述：IC REG CTRLR BUCK 32QFN