Vin -3V to -36V, -200mA, Ultra-Low Noise, High PSRR, Low-Dropout Linear Regulator - TPS7A30

TPS7A30 (ACTIVE)

Vin -3V to -36V, -200mA, Ultra-Low Noise, High PSRR, Low-Dropout Linear Regulator

 

Recommended alternative parts

  • TPS7A33  -  TPS7A33 is a 1-A, low-noise, negative LDO.
  • TPS723  -  TPS723 is a low-noise, negative LDO available in the SOT23 package.

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.

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)
    • ≥ 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
  • 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

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Parametrics Compare all products in Single Channel LDO

 
Iout (Max) (A)
Output Options
Vin (Min) (V)
Vin (Max) (V)
Vout (Min) (V)
Vout (Max) (V)
Iq (Typ) (mA)
Vdo (Typ) (mV)
Accuracy (%)
Noise (uVrms)
PSRR @ 100KHz (dB)
Output Capacitor Type
Rating
Operating Temperature Range (C)
Pin/Package
TPS7A30 TPS7A33 TPS7A47 TPS7A49
0.2    1    1    0.15   
Adjustable Output
Negative Output   
Adjustable Output
Negative Output   
Adjustable Output
Programmable Output   
Adjustable Output   
-36    -36    3    3   
-3    -3    36    36   
-33    -33    1.4    1.2   
-1.2    -1.2    34    33   
0.05    0.21    0.58    0.06   
216    290    307    260   
2.5    2.5    2.5    2.5   
15    16    4    15   
55    64    60    54   
Ceramic    Ceramic    Ceramic    Ceramic   
Catalog    Catalog    Catalog    Catalog   
-40 to 125    -40 to 125    -40 to 125    -40 to 125   
8MSOP-PowerPAD
8SON   
20VQFN
7TO-220   
20VQFN    8MSOP-PowerPAD
8SON   

WEBENCH® Designer TPS7A30

  Min   Max Range
Vin  V -35.0 to -3.0V
Product Option
Vout  V
Iout  A ≤ 0.2A
Ambient Temp  °C -40.0 to 125.0°C