Texas Instruments TPS76428DBVT, TPS76428DBV, TPS76428DBVR, TPS76427DBVT, TPS76427DBVR Datasheet

(DBV)

TPS76425, TPS76427, TPS76428, TPS76430, TPS76433

LOW-POWER LOW-NOISE 150-mA LOW-DROPOUT LINEAR REGULATORS

SLVS180A – MARCH 1999 – REVISED JUNE 1999

D

150-mA Low Noise, Low-Dropout Regulator

D

Output Voltage: 2.5 V, 2.7 V, 2.8 V, 3.0 V, 3.3 V

D

Output Noise Typically 50 µV

D

Quiescent Current Typically 85 µA

D

Dropout Voltage, Typically 300 mV
at 150 mA

D

Thermal Protection

D

Over Current Limitation

D

Less Than 2-µA Quiescent Current in

GND

DBV PACKAGE

IN

EN

(TOP VIEW)

1

5

2

3

4

OUT

BYPASS

Shutdown Mode

D

–40°C to 125°C Operating Junction
T emperature Range

D

5-Pin SOT-23 (DBV) Package

description

The TPS764xx family of low-dropout (LDO) voltage regulators offers the benefits of a low noise, low-dropout
voltage, low-power operation, and miniaturized package. Additionally , they feature low quiescent current when
compared to conventional LDO regulators. Offered in 5-terminal small outline integrated-circuit SOT-23
package, the TPS764xx series devices are ideal for low-noise applications, cost-sensitive designs and
applications where board space is at a premium.

A combination of new circuit design and process innovation has enabled the usual pnp pass transistor to be
replaced by a PMOS pass element. Because the PMOS pass element behaves as a low-value resistor, the
dropout voltage is very low—typically 300 mV at 150 mA of load current (TPS76433)—and is directly
proportional to the load current. Since the PMOS pass element is a voltage-driven device, the quiescent current
is very low (140 µA maximum) and is stable over the entire range of output load current (0 mA to 150 mA).
Intended for use in portable systems such as laptops and cellular phones, the low-dropout voltage feature and
low-power operation result in a significant increase in system battery operating life.

The TPS764xx also features a logic-enabled sleep mode to shut down the regulator, reducing quiescent current
to 1 µA maximum at T

T

J

–40°C to 125°C

†

The DBVT passive indicates tape and reel of 250 parts.

‡

The DBVR passive indicates tape and reel of 3000 parts.

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.

= 25°C.The TPS764xx is offered in 2.5-V , 2.7-V, 2.8-V , 3.0-V, and 3.3-V fixed-voltages.

J

AVAILABLE OPTIONS

VOLTAGE PACKAGE PART NUMBER SYMBOL

2.5 V TPS76425DBVT†TPS76425DBVR

2.7 V

2.8 V

3.0 V

3.3 V TPS76433DBVT†TPS76433DBVR

SOT-23

TPS76427DBVT†TPS76427DBVR
TPS76428DBVT†TPS76428DBVR
TPS76430DBVT†TPS76430DBVR

Copyright  1999, Texas Instruments Incorporated

‡

PBJI

‡

PBKI

‡

PCEI

‡

PBLI

‡

PBMI

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

1

TPS76425, TPS76427, TPS76428, TPS76430, TPS76433

I/O

DESCRIPTION

LOW-POWER LOW-NOISE 150-mA LOW-DROPOUT LINEAR REGULATORS

SLVS180A – MARCH 1999 – REVISED JUNE 1999

functional block diagram

TPS76425/ 27/ 28/ 30/ 33

IN

EN

BYPASS

V

REF

GND

TERMINAL

NAME

GND Ground
EN I Enable input
BYPASS Output bypass capacitor
IN I Input supply voltage
OUT O Regulated output voltage

OUT

Current Limit

/ Thermal

Protection

Terminal Functions

2

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

TPS76425, TPS76427, TPS76428, TPS76430, TPS76433

LOW-POWER LOW-NOISE 150-mA LOW-DROPOUT LINEAR REGULATORS

SLVS180A – MARCH 1999 – REVISED JUNE 1999

absolute maximum ratings over operating free-air temperature range (unless otherwise noted)

Input voltage range

Voltage range at EN –0.3 V to VI + 0.3 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Voltage on OUT, 7 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Peak output current Internally limited. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

ESD rating, HBM 2 kV. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Continuous total power dissipation See dissipation rating tables. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Operating virtual junction temperature range, T
Storage temperature range, T

†

Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

NOTE 1: All voltage values are with respect to network ground terminal.

Recommended DBV 350 mW 3.5 mW/°C 192 mW 140 mW

Maximum DBV 437 mW 3.5 mW/°C 280 mW 227 mW

(see Note 1)

stg

PACKAGE

–0.3 V to 10 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

–40°C to 150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

J

–65°C to 150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

DISSIPATION RATING TABLE

TA ≤ 25°C

POWER RATING

DERATING FACTOR

ABOVE TA = 25°C

TA = 70°C

POWER RATING

TA = 85°C

POWER RATING

recommended operating conditions

MIN NOM MAX UNIT

Input voltage, VI
Continuous output current, I
Operating junction temperature, T

†

To calculate the minimum input voltage for your maximum output current, use the following equation: V

†

O

J

2.7 10 V
0 150 mA

–40 125 °C

I(min)

= V

O(max)

+ V

DO(max load)

Ĕ

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

3

TPS76425, TPS76427, TPS76428, TPS76430, TPS76433

I

100 mA

T

25°C

2.45

2.5

2.55

TPS76425

V

TPS76427

V

VOOut ut voltage

TPS76428

V

TPS76430

V

TPS76433

V

(Q)

(GND terminal current)

µ

µ

Standby current

LOW-POWER LOW-NOISE 150-mA LOW-DROPOUT LINEAR REGULATORS

SLVS180A – MARCH 1999 – REVISED JUNE 1999

electrical characteristics over recommended operating free–air temperature range, VI = V
1 V, I

NOTES: 2. Minimum IN operating voltage is 2.7 V or V

= 1 mA, EN = IN, CO = 4.7 µF (unless otherwise noted)

O

PARAMETER TEST CONDITIONS MIN TYP MAX UNIT

= 1 mA to

O
IO = 1 mA to 100 mA 2.425 2.5 2.575
IO = 1 mA to 150 mA, TJ = 25°C 2.438 2.5 2.562
IO = 1 mA to 150 mA 2.407 2.5 2.593
IO = 1 mA to 100 mA, TJ = 25°C 2.646 2.7 2.754

IO = 1 mA to 100 mA 2.619 2.7 2.781
IO = 1 mA to 150 mA, TJ = 25°C 2.632 2.7 2.768
IO = 1 mA to 150 mA 2.598 2.7 2.8013
IO = 1 mA to 100 mA TJ = 25°C 2.744 2.8 2.856

p

I

V

n

PSRR Ripple rejection f = 1 kHz, Co = 10 µF, TJ = 25°C, See Note 2 60 dB

Quiescent current

Output noise voltage
Bypass voltage TJ = 25°C 1.192 V

Current limit TJ = 25°C See Note 3 0.8 1.5 A

3. Test condition includes, output voltage VO=0 V and pulse duration = 10 mS.

IO = 1 mA to 150 mA, 2.73 2.8 2.870
IO = 1 mA to 150 mA, TJ = 25°C 2.716 2.8 2.884
IO = 1 mA to 150 mA 2.695 2.8 2.905
IO = 1 mA to 100 mA, TJ = 25°C 2.94 3.0 3.06
IO = 1 mA to 100 mA 2.925 3.0 3.075
IO = 1 mA to 150 mA, TJ = 25°C 2.91 3.0 3.090
IO = 1 mA to 150 mA 2.887 3.0 3.112
IO = 1 mA to 100 mA, TJ = 25°C 3.234 3.3 3.366
IO = 1 mA to 100 mA 3.201 3.3 3.399
IO = 1 mA to 150 mA, TJ = 25°C 3.218 3.3 3.382
IO = 1 mA to 150 mA 3.177 3.3 3.423
IO = 0 to 150 mA,

See Note 2
IO = 0 to 150 mA, See Note 2 140
EN < 0.5 V, TJ = 25°C 0.5 1
EN < 0.5 V 2
BW = 300 Hz to 50 kHz,

TJ = 25°C,

O(typ)

,

+ 1 V, whichever is greater.

=

J

TJ = 25°C,

Co = 10 µF,
See Note 2

85 100

50 µV

O(typ)

+

A

4

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

gg(

OO

)

%/V

V

IIEN input current

A

TPS76425

mV

V

g

TPS76433

mV

TPS76425, TPS76427, TPS76428, TPS76430, TPS76433

LOW-POWER LOW-NOISE 150-mA LOW-DROPOUT LINEAR REGULATORS

SLVS180A – MARCH 1999 – REVISED JUNE 1999

electrical characteristics over recommended operating free–air temperature range,

= V

V

I

V

IH

V

IL

DO

NOTES: 2. Minimum IN operating voltage is 2.7 V or V

+ 1 V, IO= 1 mA, EN = IN, CO = 4.7 µF (unless otherwise noted) (continued)

O(typ)

PARAMETER TEST CONDITIONS MIN TYP MAX UNIT

Output voltage line regulation (∆V
(see Note 4)

EN high level input See Note 2 1.4 2
EN low level input See Note 2 0.5 1.2

p

Dropout voltage
(Note 5)

4. If VO < 2.5 V and V

imax

/V

= 10 V, V

imin

Line Reg. (mV)

If VO > 2.5 V and V

imax

= 10 V, V

imin

Line Reg. (mV)

5. Dropout voltage is defined as the differential voltage between VO and Vi when VO drops 100 mV below the value measured with
Vi = VO + 1.0 V .:

VO + 1 V < VI ≤ 10 V, VI ≥ 3.5 V, TJ = 25°C 0.04 0.07

)

VO + 1 V < VI ≤ 10 V,

EN = 0 V –0.01 –0.5
EN = IN –0.01 –0.5
IO = 0 mA, TJ = 25°C 0.2
IO = 1 mA, TJ = 25°C 3
IO = 50 mA, TJ = 25°C 120 150
IO = 50 mA 200
IO = 75 mA, TJ = 25°C 180 225
IO = 75 mA 300
IO = 100 mA, TJ = 25°C 240 300
IO = 100 mA 400
IO = 150 mA, TJ = 25°C 360 450
IO = 150 mA 600
IO = 0 mA, TJ = 25°C 0.2
IO = 1 mA, TJ = 25°C 3
IO = 50 mA, TJ = 25°C 100 125
IO = 50 mA 166
IO = 75 mA, TJ = 25°C 150 188
IO = 75 mA 250
IO = 100 mA, TJ = 25°C 200 250
IO = 100 mA 333
IO = 150 mA, TJ = 25°C 300 375
IO = 150 mA 500

+ 1 V, whichever is greater.

O(typ)

= 3.5 V:

ǒ

V

+ǒ%ńVǓ

= VO + 1 V:

+ǒ%ńVǓ

O

ǒ

V

O

VI ≥ 3.5 V 0.1

V

V

imax

100

imax

*

*ǒVO)

100

3.5 V

Ǔ

1000

Ǔ

Ǔ

1

1000

µ

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

5