TPS826711SIPT

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1. Description

The TPS826711SIPT device is a complete 600mA, DC/DC step-down power supply intended for low-power applications. Included in the package are the switching regulator, inductor and input/output capacitors. No additional components are required to finish the design. The TPS826711SIPT is based on a high-frequency synchronous step-down dc-dc converter optimized for battery-powered portable applications. The MicroSiP™ DC/DC converter operates at a regulated 5.5-MHz switching frequency and enters the powersave mode operation at light load currents to maintain high efficiency over the entire load current range. The PFM mode extends the battery life by reducing the quiescent current to 17μA (typ) during light load operation. For noise-sensitive applications, the device has PWM spread spectrum capability providing a lower noise regulated output, as well as low noise at the input. These features, combined with high PSRR and AC load regulation performance, make this device suitable to replace a linear regulator to obtain better power conversion efficiency. The TPS826711SIPT is packaged in a compact (2.3mm x 2.9mm) and low profile (1.0mm) BGA package suitable for automated assembly by standard surface mount equipment.

2. Features

    1. 90% Efficiency at 5.5 MHz Operation

    2. 17μA Quiescent Current

    3. Wide VIN Range From 2.3 V to 4.8 V

    4. 5.5MHz Regulated Frequency Operation

    5. Spread Spectrum, PWM Frequency Dithering

    6. Best in Class Load and Line Transient

    7. ±2% Total DC Voltage Accuracy

    8. Automatic PFM/PWM Mode Switching

    9. Low Ripple Light-Load PFM Mode

  10. ≥35dB VIN PSRR (1kHz to 10kHz)

  11. Internal Soft Start, 120-µs Start-Up Time

  12. Integrated Active Power-Down Sequencing (Optional)

  13. Current Overload and Thermal Shutdown Protection

  14. Sub 1-mm Profile Solution

  15. Total Solution Size <6.7 mm2

3. Applications

    1. Cell Phones, Smart-Phones

    2. Camera Module, Optical Data Module

    3. Wearable Electronics

    4. Digital TV, WLAN, GPS and Bluetooth™ Applications

    5. POL Applications