TPS5102 Datasheet

IC型號：
TPS5102
PDF描述：
DUAL, HIGH-EFFICIENCY CONTROLLER FOR NOTEBOOK PC POWER
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PDF頁數(shù)：
31頁
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TI

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TPS5102

DUAL, HIGH-EFFICIENCY CONTROLLER FOR NOTEBOOK PC POWER

SLVS239 - SEPTEMBER 1999

Dual, Step-Down for Notebook System

Power

4.5 V to 25 V Input Voltage Range

Adjustable Output Voltage

95% Efficiency Achievable

PWM/Skip Mode Control Maintains High

Efficiency Under Light Load Conditions

Fixed-Frequency Operation

Resistorless Current Protection

Fixed High-Side Driver Voltage

Low Quiescent Current (0.6 mA, <1

碌A(chǔ)

for

Standby)

Small 30-Pin TSSOP

EVM Available (TPS5102EVM-135)

DBT PACKAGE

(TOP VIEW)

description

INV1

FB1

SOFTSTART1

PWM_SKIP

GND

REF

STBY1

STBY2

COMP

SOFTSTART2

FB2

INV2

LH1

OUT1_u

LL1

OUT1_d

OUTGND1

TRIP1

VCC_CNTP

TRIP2

VREF5

REG5V_IN

OUTGND2

OUT2_d

LL2

OUT2_u

LH2

The TPS5102 is a dual, high efficiency controller designed for notebook system power requirements. Under light

load conditions, high efficiency is maintained as the controller switches from the PWM mode to the lower

frequency Skip mode.

These two operating modes, along with the synchronous-rectifier drivers, dead-time, and very low quiescent

current, allow power to be conserved and the battery life extended, under all load conditions.

The resistor-less current protection and fixed high-side driver voltage simplify the system design and reduce

the external parts count. The wide input voltage range and adjustable output voltages allow flexibility for using

the TPS5102 in notebook power supply applications.

GND

TPS5102DBT

C10

C12

R10

Vo1

C11

R11

C13

Vo2

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.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of Texas Instruments

standard warranty. Production processing does not necessarily include

testing of all parameters.

漏

1999, Texas Instruments Incorporated

POST OFFICE BOX 655303

鈥?/div>

DALLAS, TEXAS 75265

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