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500-mA, low-noise, high-PSRR, adjustable ultra-low-dropout voltage regulator with high-accuracy

Inventory: 47,237
Custom reel may be available

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Packaging information

Package | Pins WSON (DSK) | 10
Operating temperature range (℃) Q (-40 to 125)
Package qty | Carrier: 3,000 | LARGE T&R
Custom reel may be available
View more packaging information

Quality information

RoHS Yes
Lead finish / Ball material NIPDAU
MSL rating / Peak reflow Level-2-260C-1 YEAR
Material content View
DPPM / MTBF / Fit rate View
Qualification summary View
Ongoing reliability monitoring View
Device marking View


  • 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 dBat 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

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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 mVto 5.7 V.

The TPS7A90 output is adjustable with external resistors from 0.8 V to 5.7 V. TheTPS7A90 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-startcapabilities to reduce in-rush current, the TPS7A90 is ideal for powering sensitive analoglow-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 inhigh-speed communication, video, medical, or test and measurement applications. The very low4.7-µVRMS output noise and wideband PSRR (30 dB at 1 MHz) minimizes phasenoise and clock jitter. These features maximize performance of clocking devices, ADCs, andDACs.

Qty Price
1-99 $0.90
100-249 $0.74
250-999 $0.53
1,000+ $0.40

Alternative carriers

Part number TPS7A9001DSKT
Package qty | Carrier 250 | SMALL T&R
Inventory 13,826
Qty | Price (USD) 1ku | $0.46