TPS70148PWPR datasheet(4/34 Pages) TI1

No. de pieza	TPS70148PWPR

Descripción Electrónicos	Dual-Output Low-Dropout Voltage Regulators with Power-Up Sequencing for Split-Voltage DSP Systems

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Fabricante Electrónico	TI1 [Texas Instruments]

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(3)

If VO ≤ 1.8V then VImax = 6V, VImin = 2.7V:

Line Reg. (mV)

+ (% V)

V

O

V

Imax

*2.7V

100

1000

If VO ≥ 2.5V then VImax = 6V, VImin = VO + 1V:

Line Reg. (mV)

+ (% V)

V

O

V

Imax* VO)1V

100

1000

RECOMMENDED OPERATING CONDITIONS

ELECTRICAL CHARACTERISTICS

TPS70145, TPS70148

TPS70151, TPS70158

TPS70102

SLVS222D – DECEMBER 1999 – REVISED NOVEMBER 2004

Over operating temperature range (unless otherwise noted)

MIN

MAX

UNIT

Input voltage, VI(1)

2.7

6

V

Output current, IO (regulator 1)

0

500

mA

Output current, IO (regulator 2)

0

250

mA

Output voltage range (for adjustable option)

1.22

5.5

V

Operating junction temperature, TJ

-40

+125

°C

(1)

To calculate the minimum input voltage for maximum output current, use the following equation: VI(min) = VO(max) + VDO(max load).

Over recommended operating junction temperature range (T

J = -40°C to +125°C), VIN1 or VIN2 = VOUT(nom) + 1V, IO = 1mA,

EN = 0, C

O = 33µF, (unless otherwise noted).

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Reference

2.7V < VI < 6V,

FB connected to VO

1.22

voltage

TJ = 25°C

2.7V < VI < 6V,

FB connected to VO

1.196

1.244

1.2V Output

2.7V < VI < 6V,

TJ = 25°C

1.2

2.7V < VI < 6V,

1.176

1.224

1.5V Output

2.7V < VI < 6V,

TJ = 25°C

1.5

Output

2.7V < VI < 6V,

1.47

1.53

VO

V

voltage (1),(2)

1.8V Output

2.7V < VI < 6V,

TJ = 25°C

1.8

2.7V < VI < 6V,

1.764

1.836

2.5V Output

2.7V < VI < 6V,

TJ = 25°C

2.5

2.7V < VI < 6V,

2.45

2.55

3.3V Output

2.7V < VI < 6V,

TJ = 25°C

3.3

2.7V < VI < 6V,

3.234

3.366

Quiescent current (GND current) for

(2)

TJ = 25°C

190

µA

regulator 1 and regulator 2, EN = 0V(1)

(2)

230

Output voltage line regulation (

∆VO/VO)

VO + 1V < VI≤ 6V,

TJ = 25°C(1)

0.01%

V

for regulator 1 and regulator 2 (3)

VO + 1V < VI≤ 6V

(1)

0.1%

Load regulation for VOUT 1 and VOUT2

TJ = 25°C

(2)

1

mV

Vn

Output noise

Regulator 1

65

BW 300Hz to 50kHz,

CO = 33µF, TJ = 25°C

µVRMS

voltage

Regulator 2

65

Regulator 1

1.6

1.9

Output current limit

VOUT = 0V

A

Regulator 2

0.750

1

Thermal shutdown junction temperature

150

°C

EN = VI,

TJ = 25°C

1

Regulator 1

µA

EN = VI

3

II

Standby

(standby) current

EN = VI,

TJ = 25°C

1

Regulator 2

µA

EN = VI

3

PSRR

Power-supply ripple rejec-

f = 1kHz, CO = 33µF,

TJ = 25°C(1)

dB

60

tion

(1)

Minimum input operating voltage is 2.7V or VO(typ) + 1V, whichever is greater. Maximum input voltage = 6 V, minimum output

current = 1mA.

(2)

IO = 1mA to 500mA for Regulator 1 and 1mA to 250mA for Regulator 2.

4

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