TUSB3410VF Electronics IC Chips 500mA High PSRR Low Dropout Linear Regulator

500mA, Low Quiescent Current, Ultra-Low Noise, High PSRR Low Dropout Linear Regulator

FEATURES

• 500mA Low Dropout Regulator with EN

• Low I_Q: 46μA

• Multiple Output Voltage Versions Available:

– Fixed Outputs of 1.0V to 4.3V Using Innovative Factory EEPROM Programming

– Adjustable Outputs from 1.25V to 6.0V

• 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, V_OUT > 2.2V)

• Very Low Dropout: 280mV at 500mA

• 2mm × 2mm SON-6 and 3mm × 3mm SON-8 Packages

DESCRIPTION

The TPS735xx 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 46μA (typical) ground current. The TPS735xx is stable with ceramic capacitors and uses an advanced BiCMOS fabrication process to yield a typical dropout voltage of 250mV at 500mA output. The TPS735xx uses a precision voltage reference and feedback loop to achieve overall accuracy of 2% (VOUT > 2.2V) 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, 2mm x 2mm SON and 3mm × 3mm SON packages that are ideal for wireless handsets, printers, and WLAN cards.

APPLICATIONS

• WiFi, WiMax

• Printers

• Cellular Phones, SmartPhones

• Handheld Organizers, PDAs

DRB PACKAGE 3mm x 3mm SON (TOP VIEW)

DRV PACKAGE 2mm x 2mm SON (TOP VIEW)

ABSOLUTE MAXIMUM RATINGS

Over operating temperature range (unless otherwise noted).(1)

(1) Stresses above these ratings may cause permanent damage. Exposure to absolute maximum conditions for extended periods may degrade device reliability. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those specified is not implied.

FUNCTIONAL BLOCK DIAGRAMS

Figure 1. Fixed Voltage Versions Figure 2. Adjustable Voltage Versions

NOTE (1): Fixed voltage versions between 1.0V to 1.2V have a 1.0V bandgap circuit instead of a 1.208V bandgap circuit.