Datasheet > TPS5120EVM-151

TPS5120EVM-151

更新时间： 2024-11-25 22:35:15

品牌	Logo	应用领域
德州仪器 - TI		输出元件控制器
页数	文件大小	规格书
20页	292K
描述
DUAL OUTPUT, TWO PHASE SYNCHRONOUS BUCK DC/DC CONTROLLER

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TPS5120EVM-151 数据手册

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SLVS278E – AUGUST 2000 – REVISED MARCH 2003

DBT PACKAGE

(TOP VIEW)

Independent Dual-Outputs Operate 180°

Out of Phase

Wide Input Voltage Range: 4.5-V – 28-V

INV1

FB1

SOFTSTART1

PWM/SKIP

LH1

OUT1_u

LL1

OUT1_d

OUTGND1

TRIP1

Adjustable Output Voltage Down to 0.9 V

Pin-Selectable PWM/SKIP Mode for High

Efficiency Under Light Loads

Synchronous Buck Operation Allows up to

95% Efficiency

5V_STBY

GND

Separate Standby Control and Overcurrent

Protection for Each Channel

REF

STBY1

STBY2

TRIP2

VREF5

REG5V_IN

OUTGND2

OUT2_d

LL2

Programmable Short-Circuit Protection

FLT

Low Supply (1 mA) and Shutdown (1 nA)

Current

POWERGOOD

SOFTSTART2

FB2

Power Good Output

OUT2_u

LH2

INV2

High-Speed Error Amplifiers

Sequencing Easily Achieved by Selecting

Softstart Capacitor Values.

5-V Linear Regulator Power Internal IC

Circuitry

30-Pin TSSOP Packaging

description

The TPS5120 is a dual channel, high-efficiency synchronous buck controller where the outputs run 180 degrees

out of phase, which lowers the input current ripple, thereby reducing the input capacitance cost. The PWM/SKIP

pin allows the operating mode to switch from PWM mode to skip mode under light load conditions. The skip

mode enables a lower operating frequency and shortens the pulse width to the low-side MOSFET, increasing

the efficiency under light load conditions. These two modes, along with synchronous-rectifier drivers, dead time,

and very low quiescent current, allow power to be conserved and the battery life to be extended under all load

conditions. The 1.5 A (typical) high-side and low-side MOSFET drivers on-chip are designed to drive less

expensive N-channel MOSFETs. The resistorless current protection and fixed high-side driver voltage simplify

the power supply design and reduce the external parts count. Each channel is independent, offering a separate

controller, overcurrent protection, and standby control. Sequencing is flexible and can be tailored by choosing

different softstart capacitor values. Other features, such as undervoltage lockout, power good, overvoltage,

undervoltage, and programmable short-circuit protection promote system reliability.

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

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POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

12 3 4 5 6 7...20

中文翻译

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与TPS5120EVM-151相关器件

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TPS51211DSCR	TI	获取价格	HIGH PERFORMANCE, SINGLE SYNCHRONOUS STEP-DOWN CONTROLLER FOR NOTEBOOK POWER SUPPLY
TPS51211DSCT	TI	获取价格	HIGH PERFORMANCE, SINGLE SYNCHRONOUS STEP-DOWN CONTROLLER FOR NOTEBOOK POWER SUPPLY
TPS51215A	TI	获取价格	具有 2 位 VID 的 3V 至 28V 输入、单相 D-CAP2 控制器
TPS51215ARUKR	TI	获取价格	具有 2 位 VID 的 3V 至 28V 输入、单相 D-CAP2 控制器 \| RUK
TPS51216	TI	获取价格	Complete DDR2, DDR3 and DDR3L Memory Power Solution Synchronous Buck Controller, 2-A LDO,

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