ADP2303 3A, 700KHz NonSynchronous Step-Down DC-DC Switching Regulator

The ADP2302/ADP2303 are fixed frequency, current-mode control, step-down, dc-to-dc regulators with an integrated power MOSFET. The ADP2302/ADP2303 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 ADP2302/ADP2303 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 ADP2302/ADP2303 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 ADP2302/ADP2303 devices are available in the 8-lead, SOIC package with exposed paddle and are rated for the −40oC to +125oC junction temperature range.

Applications
  • Intermediate power rail conversion
  • DC-to-DC point of load applications
  • Communications and networking equipments
  • Industrial and instrumentation
  • Consumer electronics
  • Healthcare and Medical
Features and Benefits
  • Wide input voltage range: 3.0 V to 20 V
  • Maximum load current: 3 A for ADP2303
  • ±1.5% output accuracy over temperature range
  • Output voltage down to 0.8 V
  • 700 kHz switching frequency
  • Current-mode control architecture
  • Automatic PFM/PWM mode switching
  • Precision enable pin with hysteresis
  • Integrated high-side MOSFET
  • Integrated bootstrap diode
  • Internal compensation and soft start
  • Power-good output
  • Undervoltage lockout (UVLO)
  • Overcurrent protection (OCP)
  • Thermal shutdown (TSD)
  • 8-lead SOIC package with exposed paddle
Power Management
Design Tools
Data Sheets
Documentnote
ADP2302/ADP2303: 2 A/3 A, 20 V, 700 kHz, Nonsynchronous Step-Down Regulators (Rev. A)PDF 1002 kB
Application Notes
Documentnote
AN-1141: Powering a Dual Supply Precision ADC with Switching Regulators (Rev. 0)PDF 640 kB
User Guides
Documentnote
UG-189: Evaluation Board for the 2 A/3 A, 20 V, Nonsynchronous Step-Down RegulatorsPDF 883 kB
Order Information
Part NumberPackagePacking QtyTemp RangePrice 100-499Price 1000+RoHS
ADP2303ARDZ Production8 ld SOIC-EPOTH 98-40 to 125C01.24Y
ADP2303ARDZ-2.5 Production8 ld SOIC-EPOTH 98-40 to 125C01.24Y
ADP2303ARDZ-2.5-R7 Production8 ld SOIC-EPREEL 1000-40 to 125C01.24Y
ADP2303ARDZ-3.3 Production8 ld SOIC-EPOTH 98-40 to 125C01.24Y
ADP2303ARDZ-3.3-R7 Production8 ld SOIC-EPREEL 1000-40 to 125C01.24Y
ADP2303ARDZ-5.0 Production8 ld SOIC-EPOTH 98-40 to 125C01.24Y
ADP2303ARDZ-5.0-R7 Production8 ld SOIC-EPREEL 1000-40 to 125C01.24Y
ADP2303ARDZ-R7 Production8 ld SOIC-EPREEL 1000-40 to 125C00.98Y
ADP2302/ADP2303: 2 A/3 A, 20 V, 700 kHz, Nonsynchronous Step-Down Regulators (Rev. A) adp2302
ADP230x Inverting Buck-Boost Regulator Design Tool adp2300
ADP230x Buck Regulator Design Tool adp2300
AN-1141: Powering a Dual Supply Precision ADC with Switching Regulators (Rev. 0) ad7610
AN-1141: 用开关调节器为双电源精密ADC供电 (Rev. 0) adp1610
UG-189: Evaluation Board for the 2 A/3 A, 20 V, Nonsynchronous Step-Down Regulators adp2302
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