TPS7A4700RGWR Description

The TPS7A4700RGWR is a low-dropout linear regulator (LDO) with a positive voltage (+36 V) and ultralow noise (4 VRMS) capable of sourcing a 1-A load. The output voltages of the TPS7A4700RGWR are user-programmable (up to 20.5 V) using a printed circuit board (PCB) configuration that eliminates the need for external resistors or feed-forward capacitors, resulting in a lower overall component count.

Consider TI's TPS7A4700RGWR negative high-voltage, ultralow-noise linear regulators for applications that require both positive and negative low-noise rails.

TPS7A4700RGWR Features

• Input Voltage Range: +3 V to +36 V

• Output Voltage Noise:

• 4 μVRMS (10 Hz, 100 kHz)

• Power-Supply Ripple Rejection:

• 82 dB (100 Hz)

• > 55 dB (10 Hz, 10 MHz)

• Two Output Voltage Modes:

• ANY-OUT? Version (User-Programmable

• Output via PCB Layout):

• No External Feedback Resistors or

• Feed-Forward Capacitors Required

• Output Voltage Range: +1.4 V to +20.5 V

• Adjustable Version (TPS7A4701 only):

• Output Voltage Range: +1.4 V to +34 V

• Output Current: 1 A

• Dropout Voltage: 307 mV at 1 A

• CMOS Logic Level-Compatible Enable Pin

• Built-In Fixed Current Limit and

• Thermal Shutdown

• Available in High-Performance Thermal Package:

• 5-mm × 5-mm QFN

• Operating Temperature Range:

• –40°C to 125°C

TPS7A4700RGWR Applications

• Voltage-Controlled Oscillators (VCO) 

• Frequency Synthesizers

• Test and Measurement

• Instrumentation, Medical, and Audio 

• RX, TX, and PA Circuitry 

• Supply Rails for Operational Amplifiers DACs, ADCs, and Other High-Precision Analog Circuitry

• Post-DC-DC Converter Regulation and Ripple Filtering

• Base Stations and Telecom Infrastructure

• +12-V and +24-V Industrial Buses