1FEATURES

• Qualified for Automotive Applications

• 250mA Low Dropout Regulator with EN

• Low IQ: 44μA

• Multiple Output Voltage Versions Available:

– Fixed 3.3V Outputs

– Adjustable Outputs from 1.25V to 6.2V

• High PSRR: 60dB at 1kHz

• Ultra-Low Noise: 28μV RMS

• Fast Start-Up Time: 45μs

• Stable with a Low-ESR, 2.0μF Typical Output

Capacitance

• Excellent Load/Line Transient Response

• 2% Overall Accuracy (Load/Line/Temp)

• ThinSOT-23 Package

DESCRIPTION

The TPS734xx-Q1 family of low-dropout (LDO),

low-power linear regulators offers excellent ac

performance with very low ground current. High

power-supply rejection ratio (PSRR), low noise, fast

start-up, and excellent line and load transient

response are provided while consuming a very low 44μA (typical) ground current. The TPS734xx-Q1 is

stable with ceramic capacitors and uses an advanced

BiCMOS fabrication process to yield a typical dropout

voltage of 125mV at 250mA output. The

TPS734xx-Q1 uses a precision voltage reference and

feedback loop to achieve overall accuracy of 2% over

all load, line, process, and temperature variations. It

is fully specified from TA = –40°C to +105°C and is

offered in a low-profile ThinSOT-23 package that are

ideal for wireless handsets, printers, and WLAN

cards.