500mA high Accuracy, Low noise LDO voltage regulator - TPS7A90

TPS7A90 (正在供货)

500mA high Accuracy, Low noise LDO voltage regulator

 

备选器件推荐

  • LP5912  -  The LP5912 is a 500mA fixed output voltage low IQ, low noise LDO
  • TPS7A87  -  The TPS7A87 is a dual 500mA LDO regulator with improved noise (3.8µVrms) in a very small package (4 mm x 4 mm)
  • TPS7A19  -  TPS7A19 is a 450mA 40V high voltage ultralow quiescent current watchdog LDO

描述

The TPS7A90 device is a low-noise (4.7 µVRMS), low-dropout (LDO) voltage regulator capable of sourcing 500 mA with only 100 mV of maximum dropout to 5 V and 200 mV to 5.7 V.

The TPS7A90 output is adjustable with external resistors from 0.8 V to 5.7 V. The TPS7A90 wide input voltage range supports operation as low as 1.4 V and up to 6.5 V.

With 1% output voltage accuracy (over line, load, and temperature) and soft-start capabilities to reduce in-rush current, the TPS7A90 is ideal for powering sensitive analog low-voltage devices [such as voltage-controlled oscillators (VCOs), analog-to-digital converters (ADCs), and digital-to-analog converters (DACs)].

The TPS7A90 is designed to power noise-sensitive components such as those found in high-speed communication, video, medical, or test and measurement applications. The very low 4.7-µVRMS output noise and wideband PSRR (30 dB at 1 MHz) minimizes phase noise and clock jitter. These features maximize performance of clocking devices, ADCs, and DACs.





特性

  • 1.0% Accuracy Over Line, Load, and Temperature
  • Low Output Noise: 4.7 µVRMS (10 Hz–100 kHz)
  • Low Dropout: 100 mV (max) at 0.5 A
  • Wide Input Voltage Range: 1.4 V to 6.5 V
  • Wide Output Voltage Range: 0.8 V to 5.7 V
  • High Power-Supply Rejection Ratio (PSRR):
    • 60 dB at DC
    • 50 dB at 100 kHz
    • 30 dB at 1 MHz
  • Fast Transient Response
  • Adjustable Start-Up In-Rush Control With Selectable Soft-Start Charging Current
  • Open-Drain Power-Good (PG) Output
  • θJC = 3.2ºC/W
  • 2.5-mm × 2.5-mm, 10-Pin WSON Package

All trademarks are the property of their respective owners.

查看更多内容

参数 与其它产品相比 单通道 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
TPS7A90 TPS7A91 TPS7A92
0.5    1    2   
Adjustable Output    Adjustable Output    Adjustable Output   
1.4    1.4    1.4   
6.5    6.5    6.5   
0.8    0.8    0.8   
5.7    5.2    5.2   
2.1    2.1    2.1   
75    130    260   
1    1    1   
4.7    4.7    4.7   
48    48    48   
Ceramic    Ceramic    Ceramic   
Catalog    Catalog    Catalog   
-40 to 125    -40 to 125    -40 to 125   
10SON    10SON    10SON