10

100

1 k

10 k

10

40

80

100 k

1 M

10 M

Frequency (Hz)

50

0

m

m

20

30

60

70

90

100

TPS730xx

GND

EN

NR

IN

OUT

V

IN

V

OUT

V

IN

V

OUT

2.2

µF

0.01

0.1

µF

NOTE: (1) This capacitor is optional.

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TPS730

SBVS054J – NOVEMBER 2004 – REVISED APRIL 2015

TPS730 Low-Noise, High PSRR, RF, 200-mA Low-Dropout Linear Regulators

1 Features

3 Description

The TPS730 family of low-dropout (LDO) low-power

1

•

200-mA RF Low-Dropout Regulator

linear voltage regulators features high power-supply

With Enable

rejection ratio (PSRR), low noise, fast start-up, and

•

Available in Fixed Voltages from 1.8 V to 3.3 V

excellent line and load transient responses in a small

and Adjustable Voltages (1.22 V to 5.5 V)

SOT-23 package. NanoStar™ packaging gives an

ultrasmall footprint as well as an ultralow profile and

•

High PSRR (68 dB at 100 Hz)

package

weight,

making

it

ideal

for

portable

•

Low Noise (33

applications such as handsets and PDAs. Each

•

Fast Start-Up Time (50

μs)

device in the family is stable, with a small, 2.2-

μF

•

Stable With a 2.2-

μF Ceramic Capacitor

ceramic capacitor on the output. The TPS730 family

uses an advanced, proprietary BiCMOS fabrication

•

Excellent Load/Line Transient Response

process to yield low dropout voltages (for example,

•

Very Low Dropout Voltage (120 mV at 200 mA)

120 mV at 200 mA, TPS73030). Each device

•

5- and 6-Pin SOT-23 (DBV), and Wafer Chip

achieves fast start-up times (approximately 50

μs with

Scale (YZQ) Packages

a 0.001-

μF bypass capacitor) while consuming low

quiescent current (170

μA typical). Moreover, when

the device is placed in standby mode, the supply

2 Applications

current is reduced to less than 1

μA. The TPS73018

•

RF: VCOs, Receivers, ADCs

exhibits approximately 33

•

Audio

noise at 1.8 V output with a 0.01-

μF bypass

capacitor. Applications with analog components that

•

Cellular and Cordless Telephones

are noise-sensitive, such as portable RF electronics,

•

benefit from the high PSRR and low-noise features

•

Handheld Organizers, PDAs

as well as the fast response time.

Device Information(1)

PART NUMBER

PACKAGE

BODY SIZE (NOM)

SOT-23 (5)

2.90 mm × 1.60 mm

TPS730

SOT-23 (6)

2.90 mm × 1.60 mm

DSBGA (5)

1.35 mm × 1.00 mm

(1) For all available packages, see the orderable addendum at

the end of the data sheet.

Simplified Schematic

Ripple Rejection vs Frequency

1

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.