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–20V, –200mA, Low-Noise, Negative-Voltage Low-Dropout Linear Regulator


Package | PIN: DGN | 8
Temp: Q (-40 to 125)
Carrier: Cut Tape
Qty Price
1-9 $3.08
10-24 $2.77
25-99 $2.58
100-249 $2.26
250-499 $2.12
500-749 $1.80
750-999 $1.52
1000+ $1.45


  • Input Voltage Range: –3 V to –20 V
  • Noise:
    • 80 µVRMS (10 Hz to 100 kHz)
  • Power-Supply Ripple Rejection:
    • 50 dB (1 kHz)
    • ≥ 27 dB (10 Hz to 1 MHz)
  • Adjustable Output:
    Approximately –1.18 V to –18 V
  • Maximum Output Current: 200 mA
  • Dropout Voltage: 500 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
  • Available in High Thermal Performance MSOP-8
    PowerPAD™ Package
  • Operating Temperature Range: –40°C to 125°C

Texas Instruments  TPS7A3401DGNR

The TPS7A3401 device is a negative, high-voltage (–20-V), low-noise linear regulator capable of sourcing a maximum load of 200 mA.

These linear regulators include a CMOS logic-level-compatible enable pin. Other features available include built-in current limit and thermal shutdown protection to safeguard the device and system during fault conditions.

The TPS7A3401 is designed using bipolar technology, and is ideal for instrumentation applications where clean voltage rails are critical for improving system performance. This design makes it a cost-effective choice to power operational amplifiers, analog-to-digital converters (ADCs), digital-to-analog converters (DACs), and other analog circuitry.

In addition, the TPS7A3401 linear regulator is suitable for cost-effective, post DC-DC converter regulation. By filtering out the output voltage ripple inherent to DC-DC switching conversion, increased system performance is provided in instrumentation applications.