DBV 5

DBV 6

YZQ

www.ti.com

FEATURES

DESCRIPTION

APPLICATIONS

3

2

4

5

DBV PACKAGE

(TOP VIEW)

1

IN

GND

EN

OUT

NR

Fixed Option

3

2

4

6

DBV PACKAGE

(TOP VIEW)

1

IN

GND

EN

OUT

NR

5

FB

Adjustable Option

TPS73028

RIPPLE REJECTION

vs

FREQUENCY

10

100

1 k

10 k

10

40

80

100 k

1 M

10 M

Frequency (Hz)

50

0

20

30

60

70

90

100

0

0.05

0.10

0.15

0.20

0.25

0.30

100

1 k

10 k

100 k

Frequency (Hz)

TPS73028

OUTPUT SPECTRAL NOISE DENSITY

vs

FREQUENCY

IN

EN

OUT

NR

GND

YZQ PACKAGE

(TOP VIEW)

A3

A1

C3

C1

B2

TPS730xx

SBVS054G – NOVEMBER 2004 – REVISED DECEMBER 2006

LOW-NOISE, HIGH PSRR, RF 200-mA

LOW-DROPOUT LINEAR REGULATORS

• 200-mA RF Low-Dropout Regulator

The

TPS730xx

family

of

low-dropout

(LDO)

With Enable

low-power linear voltage regulators features high

power-supply rejection ratio (PSRR), ultralow-noise,

• Available in Fixed Voltages from 1.8V to 3.3V

fast start-up, and excellent line and load transient

and Adjustable (1.22V to 5.5V)

responses a small SOT23 package. NanoStar™

• High PSRR (68dB at 1kHz)

packaging gives an ultrasmall footprint as well as an

• Ultralow-Noise (23µV

ultralow profile and package weight, making it ideal

for portable applications such as handsets and

• Fast Start-Up Time (50µs)

PDAs. Each device in the family is stable, with a

• Stable With a 2.2µF Ceramic Capacitor

small 2.2

µF ceramic capacitor on the output. The

• Excellent Load/Line Transient Response

TPS730xx family uses an advanced, proprietary

BiCMOS fabrication process to yield low dropout

• Very Low Dropout Voltage (120mV at 200mA)

voltages (e.g., 120mV at 200mA, TPS73030). Each

• 5- and 6-Pin SOT23 (DBV), and Wafer Chip

device achieves fast start-up times (approximately

Scale (YZQ) Packages

50

µs with a 0.001µF bypass capacitor) while

consuming low quiescent current (170

µA typical).

Moreover, when the device is placed in standby

• RF: VCOs, Receivers, ADCs

mode, the supply current is reduced to less than

1

µA. The TPS73018 exhibits approximately 23µV

RMS

• Audio

of output voltage noise at 2.8V output with a 0.01

µF

• Cellular and Cordless Telephones

bypass

capacitor.

Applications

with

analog

components

that

are

noise-sensitive,

such

as

• Handheld Organizers, PDAs

portable RF electronics, benefit from the high PSRR

and low-noise features as well as the fast response

time.

Figure 1.

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.

NanoStar is a trademark of Texas Instruments.

Bluetooth is a registered trademark of Bluetooth Sig, Inc.

PRODUCTION DATA information is current as of publication date.

Copyright © 2004–2006, Texas Instruments Incorporated

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.