ADP2303ARDZ-5.0-R7

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1. DESCRIPTION

The ADP2303ARDZ-5.0-R7 are fixed frequency, current-mode control, step-down, dc-to-dc regulators with an integrated power MOSFET. The ADP2303ARDZ-5.0-R7 can run from an input voltage of 3.0 V to 20 V, which makes them suitable for a wide range of applications. The output voltage of the ADP2303ARDZ-5.0-R7 can be down to 0.8 V for the adjustable version, while the fixed output version is available in preset output voltage options of 5.0 V, 3.3 V, and 2.5 V. The 700 kHz operating frequency allows small inductor and ceramic capacitors to be used, providing a compact solution. Current mode control provides fast and stable line and load transient performance. The ADP2303ARDZ-5.0-R7 have integrated soft start circuitry to prevent a large inrush current at power-up. The power-good signal can be used to sequence devices that have an enable input. The precision enable threshold voltage allows the part to be easily sequenced from other input/output supplies. Other key features include undervoltage lockout (UVLO), overvoltage protection (OVP), thermal shutdown (TSD), and overcurrent protection (OCP). The ADP2303ARDZ-5.0-R7 devices are available in the 8-lead, SOIC package with exposed paddle and are rated for the −40 C to +125 C junction temperature range. 

2. FEATURES

    1. Wide input voltage range: 3.0 V to 20 V

    2. Maximum load current

        - 3 A for ADP2303

    3. ±1.5% output accuracy over temperature

    4. Output voltage down to 0.8 V

    5. 700 kHz switching frequency

    6. Current-mode control architecture

    7. Automatic PFM/PWM mode

    8. Precision enable pin with hysteresis

    9. Integrated high-side MOSFET

  10. Integrated bootstrap diode

  11. Internal compensation and soft start

  12. Power-good output

  13. Undervoltage lockout (UVLO)

  14. Overcurrent protection (OCP)

  15. Thermal shutdown (TSD)

  16. 8-lead SOIC package with exposed paddle

  17. Supported by ADIsimPower™ design tool

3. APPLICATIONS

    1. Intermediate power rail conversion

    2. DC-to-DC point of load applications

    3. Communications and networking

    4. Industrial and instrumentation

    5. Healthcare and medical

    6. Consumer