TPS7A49 Wide VIN, 150-mA, ultra-low-noise, high-PSRR low-dropout (LDO) linear regulator | TI.com

TPS7A49 (ACTIVE) Wide VIN, 150-mA, ultra-low-noise, high-PSRR low-dropout (LDO) linear regulator

Wide VIN, 150-mA, ultra-low-noise, high-PSRR low-dropout (LDO) linear regulator - TPS7A49
Datasheet
TPS7A49 36-V, 150-mA, Ultralow-Noise, Positive Linear Regulator datasheet (Rev. E)
 

Recommended alternative parts

  • TPS7A88  -  A dual-channel, low noise, 1-A LDO
  • TPS7A91  -  A single-channel, low-noise, 1-A LDO

Description

The TPS7A49 series of devices are positive, high-voltage (36 V), ultralow-noise (15.4 µVRMS, 72-dB PSRR) linear regulators that can source a 150-mA load.

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 available features include built-in current limit and thermal shutdown protection to safeguard the device and system during fault conditions.

The TPS7A49 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 TPS7A49 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 where positive and negative high-performance rails are required, consider TI’s TPS7A30xx family of negative high-voltage, ultralow-noise linear regulators as well.

Features

  • Input Voltage Range: 3 V to 36 V
  • Noise:
    • 12.7 µVRMS (20 Hz to 20 kHz)
    • 15.4 µVRMS (10 Hz to 100 kHz)
  • Power-Supply Ripple Rejection:
    • 72 dB (120 Hz)
    • ≥ 52 dB (10 Hz to 400 kHz)
  • Adjustable Output: 1.194 V to 33 V
  • Output Current: 150 mA
  • Dropout Voltage: 260 mV at 100 mA
  • Stable with Ceramic Capacitors ≥ 2.2 µF
  • CMOS Logic-Level-Compatible Enable Pin
  • 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

WEBENCH® Designer TPS7A49

  Min   Max Range
Vin –  V 3.0 to 36.0V
Product Option
Vout  V
Iout  A ≤ 0.15A
Ambient Temp  °C -40.0 to 125.0°C

What are WEBENCH® tools?

Parametrics

Compare all products in Linear regulators (LDO) Email Download to Excel
Part number Order 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 PSRR @ 100 KHz (dB) Accuracy (%) Dropout voltage (Vdo) (Typ) (mV) Iq (Typ) (mA) Package size: mm2:W x L (PKG)
TPS7A49 Order now Adjustable Output     0.15     36     3     33     1.2     HVSSOP | 8
SON | 8    		 Enable
Soft Start    		 1     -40 to 125     48     15     1.10 | 1ku     Catalog     54     2.5     260     0.06     8HVSSOP: 15 mm2: 4.9 x 3 (HVSSOP | 8)
8SON: 9 mm2: 3 x 3 (SON | 8)    
TPS7A30 Order now Adjustable Output
Negative Output    		 0.2     -3     -36     -1.2     -33     HVSSOP | 8
SON | 8    		 Enable
Soft Start    		 1     -40 to 125     48     15     1.50 | 1ku     Catalog     55     2.5     216     0.05     8HVSSOP: 15 mm2: 4.9 x 3 (HVSSOP | 8)
8SON: 9 mm2: 3 x 3 (SON | 8)    
TPS7A33 Order now Adjustable Output
Negative Output    		 1     -3     -36     -1.2     -33     VQFN | 20     Enable
Soft Start    		 1     -40 to 125     31     16     2.70 | 1ku     Catalog     64     2.5     290     0.21     20VQFN: 25 mm2: 5 x 5 (VQFN | 20)    
TPS7A47 Order now Adjustable Output
Programmable Output    		 1     36     3     34     1.4     VQFN | 20     Enable
Soft Start    		 1     -40 to 125     33     4     2.10 | 1ku     Catalog     60     2.5     307     0.58     20VQFN: 25 mm2: 5 x 5 (VQFN | 20)