TPS7A4101DGNR


50V 50mA LDO, ultra-low noise, MSOP-8

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TPS7A4101DGNR

Paquete:

MSOP-8 (3x3mm)

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Descripción

Productos

The TPS7A4101DGNR from TI is a 50V, 50mA ultra-low-noise LDO regulator with 72dB PSRR in MSOP-8 for precision analog and RF power supply applications.

Especificaciones

Paquete MSOP-8 (3x3mm)

Características

  • See datasheet for complete specifications
  • Industry-standard package

Aplicaciones

  • Industrial control
  • Consumer electronics
  • Communication equipment
  • Automotive electronics

The TPS7A4101DGNR from TI is a 50V, 50mA ultra-low-noise LDO regulator with 72dB PSRR in MSOP-8 for precision analog and RF power supply applications.

The TPS7A4101DGNR is a 50V 50mA ultra-low-noise LDO from Texas Instruments in MSOP-8 (with exposed pad), providing 4.5uVrms output noise from 10Hz-100kHz. The ultra-low noise is achieved by the NR/SS (Noise Reduction / Soft-Start) pin: connecting a capacitor (0.01uF recommended) to this pin creates a low-pass filter on the internal bandgap reference, reducing reference noise by 10x. The filtered reference feeds the error amplifier, and the LDO’s high PSRR (72dB at 1kHz, 40dB at 1MHz) further rejects input noise. The 50V input rating (maximum 50V, operating 4-50V) makes this device unique for high-voltage, noise-sensitive applications like: (1) Post-regulation after a 48V switching converter; (2) Precision analog power for data converters in industrial systems; (3) VCO/PLL power supplies where noise directly translates to phase noise. The dropout voltage is 200mV at 50mA. The output voltage accuracy is +/-1% over temperature. The device is stable with any output capacitor >=2.2uF (ceramic). The EN pin provides shutdown (1uA Iq). The SS function (same NR/SS pin) controls output ramp-up time: larger capacitor = slower start. The -DGNR suffix specifies MSOP-8 with exposed pad, tape-and-reel. Applications include: medical ultrasound power, test equipment analog rails, and RF/analog power supplies.

Pin Nombre Tipo Función
1 OUT Salida Regulated output (connect with 2.2uF ceramic cap, 50mA max)
2 EN Entrada Input supply (4-50V, connect with 1uF ceramic cap)
3 ES Entrada Enable (HIGH=on, internal pull-up, LOW=shutdown, 1uA Iq)
4 NR/SS Analógico Noise reduction / soft-start (connect 0.01uF cap for ultra-low noise)
5 GND/EP Potencia Ground and exposed pad (connect to GND plane for thermal)
  • Industrial control
  • Consumer electronics
  • Communication equipment
  • Automotive electronics
  • Fabricante Número de pieza Paquete Notas
    Texas Instruments TPS7A4101DGNR MSOP-8 Same device, TI brand
    Texas Instruments TPS7A4001DGNR MSOP-8 50V 50mA LDO, adjustable version
    Texas Instruments TPS7A4700RGWR VQFN-20 20V 1A ultra-low noise LDO, TI brand
    Dispositivos analógicos LT3042EDD#PBF DFN-10 20V 200mA ultra-low noise LDO, ADI
    Maxim MAX8719EUA+T uMAX-8 28V 50mA LDO, Maxim brand
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    Address: Room 2919, Guoli Building, Huaqiang North, Futian District, Shenzhen, Guangdong, China
     

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