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The AP61100/AP61102 is a 1A, synchronous buck converter with a wide input voltage range of 2.3V to 5.5V. The device fully integrates a 110mΩ high-side power MOSFET and an 80mΩ low-side power MOSFET to provide high-efficiency step-down DC-DC conversion. The AP61100/AP61102 device is easily used by minimizing the external component count due to its adoption of Constant On-Time (COT) control to achieve fast transient response, easy loop stabilization, and low output voltage ripple. The device is available in a SOT563 package.
VIN: 2.3V to 5.5V
Output Voltage (VOUT): 0.6V to 3.6V
1A Continuous Output Current
0.6V ± 2% Reference Voltage
15μA Low Quiescent Current (Pulse Frequency Modulation)
2.2MHz Switching Frequency (VIN = 5V, VOUT = 1.8V)
Up to 89% Efficiency at 5mA Light Load
Programmable Operation Mode Through EN o Pulse Frequency Modulation o Pulse Width Modulation Regardless of Output Load
Power-Good Indicator o AP61102
Protection Circuitry o Undervoltage Lockout (UVLO) o VIN Overvoltage Protection (OVP) o Peak Current Limit o Valley Current Limit o Thermal Shutdown
Environmental Compliance Legend: LFF: Pb-Free Finish and RoHS 5/6 TLFP: Totally Pb-Free Product and RoHS 6/6 LFGP: Pb-free Finish and Green Product, RoHS 5/6 and Halogen Free TPGP: Totally Pb-Free and Green Product, RoHS 6/6 and Halogen Free GREEN: Halogen-free and RoHS compliant RoHS: RoHS compliant but NOT halogen-free
Product Change Notices (PCNs)
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