DC-DC Converters

AM32101

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Data Sheet

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Key Features

• 2.4V to 5.5V input voltage range
• Flexible Output Voltage Selection:
  • Internal voltage dividers: 0.6V, 0.9V, 1.1V, 1.8V, 2.5V, or 3.3V, simplifying design and reducing external components
  • External resistor divider for custom output voltages. 0.6V to 3.8V
• IOUT: 1A Continuous
• 15µA Quiescent Current
• Operating Modes:
  • Auto Mode (PFM/PWM) – optimized for battery-powered applications
  • Sleep Mode
  • USM – Avoid audio frequency (for duty cycle < 70%)
  • FPWM Mode – ensures low output voltage ripple
• Configurable CCM Switching Frequency: 2MHz–3MHz with step 0.2MHz
• Power Good Signal: Provides system monitoring capability
• Output Discharge
• Protection Circuitry
  • Undervoltage Lockout
  • Overvoltage Protection
  • Peak Current Limit
  • Valley Current Limit
  • Short Circuit Protection (Hiccup Mode)
  • Thermal Shutdown

Typical application circuit

Efficiency vs Output Current at VIN = 5V