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

1 Features

• 200mA low-dropout regulator with enable

• Available in fixed voltages from 1.8V to 3.3V and

adjustable voltages (1.22V to 5.5V)

• High PSRR (68dB at 100Hz)

• Low noise:

– 55μVRMS (legacy chip)

– 69μVRMS (new chip)

• Stable with a 2.2μF ceramic capacitor

• Excellent load, line transient response

• Very low dropout voltage: 120mV (typ)

• For a more updated portfolio device, see the

TPS7A20

2 Applications

• TV applications

• Connected peripherals and printers

• Portable medical equipment

• Home theater and entertainment applications

• Building automation

3 Description

The TPS730 is a low-dropout (LDO) voltage regulator

that features high power-supply rejection ratio (PSRR)

and offers excellent line and load transient responses.

This device is stable with a small 2.2μF ceramic

capacitor on the output. The TPS730 offers low

dropout voltages (for example, 120mV typical at

200mA). The low output noise and great PSRR

makes this device designed to power sensitive analog

loads. The TPS730 offers a flexible option for post

regulation with the adjustable capability.

Package Information

PART NUMBER

PACKAGE(1)

PACKAGE SIZE(2)

TPS730

DBV (SOT-23, 5)

2.9mm × 2.8mm

DBV (SOT-23, 6)

2.9mm × 2.8mm

YZQ (DSBGA, 5)

1.35mm × 1mm

(1)

For more information, see the Mechanical, Packaging, and

Orderable Information.

(2)

The package size (length × width) is a nominal value and

includes pins, where applicable.

Frequency (Hz)

0

20

40

60

80

10

100

1k

10k

100k

1M

10M

VIN = 3.8V

COUT = 10F

IOUT

10mA

200mA

Ripple Rejection vs Frequency

TPS730

SBVS054K – NOVEMBER 2004 – REVISED JUNE 2025

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.