1 Features
1• 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) power–
≥ 55 dB (10 Hz to 700 kHz)
• 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 high•
CMOS Logic-Level-Compatible Enable Pin
• Built-In, Fixed, Current Limit and Thermal
Shutdown Protection
• Packages: 8-Pin HVSSOP PowerPAD™ 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.