TL5209 Single Output, 500mA, Adjustable (1.3 to 6.5V), Low Noise LDO |

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Single Output, 500mA, Adjustable (1.3 to 6.5V), Low Noise LDO


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The TL5209 device is 500-mA low-dropout (LDO) regulator that is well suited for portable applications. It has a lower quiescent current than most traditional PNP regulators and allows for a shutdown current of 0.05 µA (typical). The TL5209 also has very good dropout voltage characteristics, requiring a maximum dropout of 10 mV at light loads and 500 mV at full load. In addition, the LDO also has a 1% output voltage accuracy and very tight line and load regulation that is comparable to its CMOS counterparts.

For noise-sensitive applications, the TL5209 allows for low-noise capability through an external bypass capacitor connected to the BYP pin, which reduces the output noise of the regulator. Other features include current limiting, thermal shutdown, reverse-battery protection, and low temperature coefficient.

The TL5209 is available with adjustable output. Offered in an SOIC-8 surface-mount package, the TL5209 is characterized for operation over the virtual junction temperature ranges of –40°C to 125°C.


  • Adjustable Output Voltage
  • 1%/2% Accuracy (25°C/Full Range)
  • 500-mV (Maximum) Dropout at Full Load of
    500 mA
  • Tight Regulation Overtemperature Range
    • 0.1%/V (Maximum) Line Regulation
    • 0.7% (Maximum) Load Regulation
  • Ultra Low-Noise Capability (300 nV/√Hz Typical)
  • Shutdown Current of 3 µA (Maximum)
  • Low Temperature Coefficient
  • Current Limiting and Thermal Protection
  • Stable With Minimum Load of 1 mA
  • Reverse-Battery Protection
  • Applications
    • Portable Applications (PDAs, Laptops,
      Cell Phones)
    • Consumer Electronics
    • Post-Regulation for SMPS
  • Available in Convenient SOIC-8 Surface-Mount


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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)
TL5209 Order now Adjustable Output     0.5     16     2.5     6.5     1.3     SOIC | 8     Reverse Voltage Protection     1     -40 to 125     116     300     0.34 | 1ku     Catalog     30     2     500     8     8SOIC: 19 mm2: 3.91 x 4.9 (SOIC | 8)