TPS7A30 Vin -3V to -36V, -200mA, Ultra-Low-Noise, High-PSRR, Low-Dropout (LDO) Linear Regulator | TI.com

TPS7A30 (ACTIVE)

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

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

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 Linear regulators (LDO)

 
Output Options
Iout (Max) (A)
Vin (Max) (V)
Vin (Min) (V)
Vout (Max) (V)
Vout (Min) (V)
Package Group
Features
Regulated Outputs (#)
Operating Temperature Range (C)
Thermal Resistance θJA (°C/W)
Noise (uVrms)
Approx. Price (US$)
Rating
Output Capacitor Type
PSRR @ 100KHz (dB)
Accuracy (%)
Vdo (Typ) (mV)
Iq (Typ) (mA)
Package Size: mm2:W x L (PKG)
TPS7A30 TPS7A33 TPS7A47 TPS7A49
Adjustable Output
Negative Output    
Adjustable Output
Negative Output    
Adjustable Output
Programmable Output    
Adjustable Output    
0.2     1     1     0.15    
-3     -3     36     36    
-36     -36     3     3    
-1.2     -1.2     34     33    
-33     -33     1.4     1.2    
MSOP-PowerPAD | 8
SON | 8    
VQFN | 20     VQFN | 20     MSOP-PowerPAD | 8
SON | 8    
Enable
Soft Start    
Enable
Soft Start    
Enable
Soft Start    
Enable
Soft Start    
1     1     1     1    
-40 to 125     -40 to 125     -40 to 125     -40 to 125    
48     31     33     48    
15     16     4     15    
1.50 | 1ku     2.70 | 1ku     2.10 | 1ku     1.10 | 1ku    
Catalog     Catalog     Catalog     Catalog    
Ceramic     Ceramic     Ceramic     Ceramic    
55     64     60     54    
2.5     2.5     2.5     2.5    
216     290     307     260    
0.05     0.21     0.58     0.06    
8MSOP-PowerPAD: 15 mm2: 4.9 x 3 (MSOP-PowerPAD | 8)
See datasheet (SON)    
20VQFN: 25 mm2: 5 x 5 (VQFN | 20)     20VQFN: 25 mm2: 5 x 5 (VQFN | 20)     8MSOP-PowerPAD: 15 mm2: 4.9 x 3 (MSOP-PowerPAD | 8)
See datasheet (SON)    

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