Semtech | SC202AEVB

The SC202AEVB is a Evaluation Board for Step-down Regulator with Inductor and Programmable Out . It is a high efficiency 500 mA step-down regulator that includes an integrated inductor inside the package. The input voltage range makes it ideal for battery operated applications with space limitations.

The SC202A also includes 15 programmable output voltage settings that can be selected using the four control pins, eliminating the need for external feedback resistors. The output voltage can be fixed to a single setting or dynamically switched between different levels. Pulling all four control pins low disables the output.

The SC202A operates at a fixed 3.5 MHz switching frequency in normal PWM (Pulse-Width Modulation) mode. A variable frequency PSAVE (power-save) mode is used to optimize efficiency at light loads for each output setting. Built-in hysteresis prevents chattering between the two modes.

Features:

• Input Voltage — 2.9 V to 5.5 V
• Output Voltage — 0.8 V to 3.3 V
• Output current capability — 500 mA
• Internal inductor
• Programmable output voltages — 15
• High light-load efficiency via automatic PSAVE mode
• Fast transient response
• Temperature range — -40 to +85°C
• Oscillator frequency — 3.5MHz
• 100% duty cycle capability
• Quiescent current — 38 μA typical
• Shutdown current — 0.1 μA typical
• Internal soft-start
• Over-voltage protection
• Current limit and short circuit protection
• Over-temperature protection
• Under-voltage lockout
• Floating control pin protection
• MLPQ-13 — 2.5 x 3.0 x 1.0 (mm) package
• Lead-free and halogen-free
• WEEE and RoHS compliant

Applications:

• Point of load regulation
• Smart phones and cellular phones
• MP3/personal media players
• Personal navigation devices
• Digital cameras
• Single Li-ion cell or 3 NiMH/NiCd cell devices
• Devices with 3.3 V or 5 V internal power rails