ADP2303ARDZ-R7

The ADP2302/ADP2303 are fixed frequency, current mode control,Step-down DC-DC regulator, integrated power MOSFETs operating from 3.0 V to 20 V input voltages for a variety of applications. The adjustable version can output down to 0.8 V, while the fixed output version offers preset output voltage options: 5.0 V, 3.3 V, and 2.5 V. The 700 kHz operating frequency allows the use of small inductors and ceramic capacitors, providing a compact solution. Current mode control provides fast, stable line and load transient response. The ADP2302/ADP2303 have an integrated soft-start circuit that prevents large inrush currents from affecting the device at power-up. A power good signal can be used to control the power-up sequencing of devices with enable inputs. These devices have a precision enable pin threshold voltage, making it easy to control the timing of these devices with other input/output sources. Other important features include undervoltage lockout (UVLO), overvoltage protection (OVP), thermal shutdown (TSD), and overcurrent protection (OCP).

The ADP2302/ADP2303 are available in an 8-lead SOIC package with a bottom pad and are specified over the industrial temperature range of −40°C to +125°C.

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• Intermediate power rail conversion
• DC-DC point-of-load applications
• Communications and networking equipment
• Industrial and instrumentation
• Consumer electronic devices
• Healthcare

• Advantages and features

  • Wide input voltage range: 3.0 V to 20 V
  • Maximum load current: 3 A (ADP2303)
  • Output accuracy: ±1.5% over temperature
  • Output voltages as low as 0.8 V
  • Switching frequency: 700 kHz
  • Current-mode control structure
  • PFM/PWM mode is switched automatically
  • Precision enable pin with hysteresis

  • Integrated high-end MOSFETs
  • Integrated bootstrap diode
  • Internal compensation and soft start
  • Power good output
  • Undervoltage lockout (UVLO)
  • Overcurrent Protection (OCP)
  • Thermal Shutdown (TSD)
  • 8-pin SOIC package with bottom pad
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