Tiny 5.5V, 1A, Synchronous COT Buck Converter from Diodes IncorporatedSeptember 06, 2020 by Hailey Stewart
Diodes Incorporated introduces Tiny 5.5V, 1A, Synchronous COT Buck Converters, the AP61100 and AP61102.
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 can be set to operate in either Pulse Width Modulation (PWM) regardless of load or Pulse Frequency Modulation (PFM) with up to 89% efficiency at 5mA light load.
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.
The Diodes Advantage
The AP61100/AP61102 provides a high efficiency DC-DC solution for general POL applications.
High Efficiency @ Light Loads
0.1µA Shutdown Current
Low 15µA Quiescent Current in PFM Operation
High Design Flexibility
Wide Input Range from 2.3V – 5.5V
Wide Output Voltage range: 0.6V to 3.6V
Multifunctional EN Pin to Control PFM and PWM Operation Modes
Built-in PG with Internal Pull-Up Resistor (AP61102)
Utilizes both High-side and Low-side Current Sense Protection
Ease of Layout Design
2.2MHz Switching Frequency Allows the Use of Small Passive
COT Control Minimizes External Component Count
- 5V Distributed Power Bus Supplies
- White Goods and Small Home Appliances
- FPGA, DSP, and ASIC Supplies
- Network Video Cameras
- Wireless Routers
- Consumer Electronics
Typical Application Circuit
Efficiency vs. Output Current
5V DC-DC Buck Converter Portfolio
HS / LS
|AP61100||2.3 – 5.5||0.6 – 3.6||1||110 / 80||Yes||2.2||15||-40 to +85||No||SOT563|
|AP61102||2.3 – 5.5||0.6 – 3.6||1||110 / 80||Yes||2.2||15||-40 to +85||Yes||SOT563|
|AP61100Z6-7||Z6||SOT563||HJ||7 inches||8 millimeters||3000|
|AP61102Z6-7||Z6||SOT563||HK||7 inches||8 millimeters||3000|
About Diodes Incorporated
Dialog brings decades of experience to the rapid development of ICs while providing flexible and dynamic support, world-class innovation and the assurance of dealing with an established business partner. We continue to lead through innovation and diversification as a socially responsible employer pursuing many programs to benefit the employees, community, stakeholders and the environment we operate in.