TPS79501-Q1 Automotive Catalog Single Output LDO, 500mA, Adj.(1.2 to 5.5V), Low Noise, High PSRR |

TPS79501-Q1 (ACTIVE) Automotive Catalog Single Output LDO, 500mA, Adj.(1.2 to 5.5V), Low Noise, High PSRR


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  • TPS7A88-Q1  -  TPS7A88-Q1 is a dual-channel, low-noise, 1-A LDO.


The TPS79501-Q1 low-dropout (LDO), low-power linear voltage regulator features high power-supply rejection ratio (PSRR), ultralow noise, fast start-up, and excellent line and load transient responses in a small outline SON package. The device is stable with a small 1-µF ceramic capacitor on the output. The TPS79501-Q1 uses an advanced, proprietary BiCMOS fabrication process to yield extremely low dropout voltages (for example, 110 mV at 500 mA). The device achieves fast start-up times (approximately 50 µs with a 0.001-µF bypass capacitor) while consuming very low quiescent current (265 µA, typical). Moreover, when the device is placed in standby mode, the supply current is reduced to less than 1 µA. The TPS79501-Q1 exhibits approximately 33 µVRMS of output voltage noise at 3-V output with a 0.1-µF bypass capacitor. Applications with analog components that are noise-sensitive, such as portable RF electronics, benefit from the high-PSRR and low-noise features, as well as from the fast response time.


  • Qualified for Automotive Applications
  • 500-mA Low-Dropout Regulator With Enable
  • High PSRR (50 dB at 10 kHz)
  • Ultralow Noise (33 µVRMS, TPS79501-Q1)
  • Fast Start-Up Time (50 µs)
  • Stable With a 1-µF Ceramic Capacitor
  • Excellent Load/Line Transient Response
  • Low Dropout Voltage (110 mV at Full Load, TPS79501-Q1)
    • RF: VCOs, Receivers, ADCs
    • Audio
    • Bluetooth®, Wireless LAN

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Part number Order Output options Iout (Max) (A) Vin (Max) (V) Vin (Min) (V) Vout (Max) (V) Vout (Min) (V) Fixed output options (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 @ 100 KHz (dB) Accuracy (%) Vdo (Typ) (mV) Iq (Typ) (mA) Package size: mm2:W x L (PKG)
TPS79501-Q1 Order now Adjustable Output     0.5     5.5     2.7     5.4     1.2       SON | 8     Enable     1     -40 to 125     48     33     1.34 | 1ku     Automotive     Ceramic     40     2     110     0.26     See datasheet (SON)    
TPS79633-Q1 Order now Fixed Output     1     5.5     2.7     3.3     3.3     3.3     SOT-223 | 6     Enable     1     -40 to 125     70     42     1.60 | 1ku     Automotive     Ceramic     42     2     220     0.26     6SOT-223: 46 mm2: 7.06 x 6.5 (SOT-223 | 6)