TPS7A3001DGNR Power Path Management IC LDO Voltage Regulators -3V to -36V,-200mA High PSRR, LDO Reg

1 Features

• Input Voltage Range: –3 V to –35 V

• Noise:

  • – 14 μVRMS (20 Hz to 20 kHz)

  • – 15.1 μVRMS (10 Hz to 100 kHz)

• Power-Supply Ripple Rejection:

– 72 dB (120 Hz)

– ≥55dB(10Hzto700kHz)

• Adjustable Output: –1.18 V to –33 V

• Maximum Output Current: 200 mA

• Dropout Voltage: 216 mV at 100 mA

• Stable with Ceramic Capacitors ≥ 2.2 μF

• CMOS Logic-Level-Compatible Enable Pin

• Built-In, Fixed, Current Limit and Thermal Shutdown Protection

• Packages: 8-Pin HVSSOP PowerPADTM and 3-mm × 3-mm VSON

• Operating Temperature Range: –40°C to 125°C

  
  

2 Applications

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

• Audio

• Post DC-DC Converter Regulation and Ripple Filtering

• Test and Measurement

• RX, TX, and PA Circuitry

• Industrial Instrumentation

• Base Stations and Telecom Infrastructure

• –12-V and –24-V Industrial Buses

3 Description

The TPS7A30 series of devices are negative, high- voltage (–35 V), ultralow-noise (15.1 μVRMS, 72-dB PSRR) linear regulators that can source a maximum load of 200 mA.

These linear regulators include a CMOS logic-level- compatible enable pin and capacitor-programmable soft-start function that allows for customized power- management schemes. Other features include built-in current limit and thermal shutdown protection to safeguard the device and system during fault conditions.

The TPS7A30 family is designed using bipolar technology, and is ideal for high-accuracy, high- precision instrumentation applications where clean voltage rails are critical to maximize system performance. This design makes the device an excellent choice to power operational amplifiers, analog-to-digital converters (ADCs), digital-to-analog converters (DACs), and other high-performance analog circuitry.

In addition, the TPS7A30 family of linear regulators is suitable for post dc-dc converter regulation. By filtering out the output voltage ripple inherent to dc-dc switching conversion, maximum system performance is provided in sensitive instrumentation, test and measurement, audio, and RF applications.

For applications that require positive and negative high-performance rails, consider TI’s TPS7A49 family of positive high-voltage, ultralow-noise linear regulators.

Device Information