1FEATURES

2· 250mA Low Dropout Regulator with EN

· Low IQ: 44mA

· Multiple Output Voltage Versions Available:

– Fixed Outputs of 1.0V to 4.3V Using

Innovative Factory EEPROM Programming

– Adjustable Outputs from 1.25V to 6.2V

· High PSRR: 60dB at 1kHz

· Ultra-low Noise: 28mVRMS

· Fast Start-Up Time: 45ms

· Stable with a Low-ESR, 2.0mF Typical Output

Capacitance

· Excellent Load/Line Transient Response

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

· Very Low Dropout: 125mV at 250mA

· ThinSOT-23, 2mm × 2mm SON-6, and 3mm x

3mm SON-8 Packages

APPLICATIONS

· WiFi, WiMax

· Printers

· Cellular Phones, SmartPhones

· Handheld Organizers, PDAs

DESCRIPTION

The TPS734xx 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

44mA (typical) ground current. The TPS734xx 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

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 TJ = –40°C to +125°C and is offered in

low-profile ThinSOT-23, 2mm × 2mm SON, and 3mm

x 3mm SON packages that are ideal for wireless

handsets, printers, and WLAN cards.