AP613xx Synchronous Buck Converters

Product Highlights > AP613xx Synchronous Buck Converters

            AP613xx Synchronous Buck Converters
                    Diodes’ AP613xx 3 A converters can operate in either PWM regardless of load or PFM with up to 84% efficiency at 5 mA light load
    

Diodes’ AP61300 and AP61302 3 A synchronous buck converters have a wide input voltage range of 2.4 V to 5.5 V. The devices fully integrate a 70 mΩ high-side power MOSFET and a 50 mΩ low-side power MOSFET to provide high-efficiency step-down DC/DC conversion.

The AP61300/AP61302 can be set to operate in either pulse width modulation (PWM) regardless of load or pulse frequency modulation (PFM) with up to 84% efficiency at 5 mA light load (5 V_IN, 1.8 V_OUT). These devices are easily used by minimizing the external component count due to their adoption of constant on-time (COT) control to achieve fast transient response, easy loop stabilization, and low output voltage ripple and are available in a SOT563 package.

Features

High efficiency at light loads
- 0.1 µA shutdown current
- Low 19 µA quiescent current in PFM operation
High design flexibility
- Wide input range from 2.4 V to 5.5 V
- Wide output voltage range: 0.6 V to V_IN
- Multifunctional EN pin to control PFM and PWM operation modes
- Built-in PG with Internal 5 MΩ pull-up resistor (AP61302)

High robustness
- Utilizes both high-side and low-side current sense protection
Ease of layout design
- 2.2 MHz switching frequency allows the use of small passive
- COT control minimizes external component count
Available in a SOT563 package

Applications

FPGA, DSP, and ASIC supplies
Network video cameras
Wireless routers

Consumer electronics
5 V distributed power bus supplies
White goods and small home appliances