AP62600 Synchronous Buck Converter

Diodes' Synchronous Buck Converters Enable Fast Transient Response, Easy Loop Settling, and Low Output Voltage Ripple

Image of Diodes AP62600 Synchronous Buck Converter Diodes' AP62600 is a 6 A synchronous buck converter with a wide input voltage range of 4.5 V to 18 V. The device fully integrates a 36mΩ high-side power MOSFET and a 14mΩ low-side power MOSFET to provide high-efficiency step-down DC/DC conversion. The AP62600 device minimizes external component count by employing constant-on-time (COT) control, resulting in fast transient response, easy loop stability, and low output voltage ripple. The AP62600 design is optimized for reducing electromagnetic interference (EMI). The device features a proprietary gate driver scheme that resists switching node ringing without sacrificing MOSFET turn-on and turn-off times, reducing high-frequency radiated EMI noise caused by MOSFET switching. The device is available in a V-QFN2030-12 (Type A) package.

feature

Voltage Input: 4.5 V to 18 V

Output Voltage (VOUT): 0.6 V to 7 V

6 A continuous output current

0.6 V ± 1% reference voltage

Quiescent current 360μA

Selectable switching frequency

400 kHz

800 kHz

1.2 MHz

Selectable operating modes

Pulse Frequency Modulation (PFM)

Ultrasonic Mode (USM)

Pulse Width Modulation (PWM)

Programmable soft-start time

Proprietary gate driver design minimizes EMI

power good indicator

Precision Enable Threshold, Adjustable Under-Voltage Lockout (UVLO)

protect the circuit

VLO

Cycle-by-Cycle Valley Current Limit

thermal shutdown

Lead-free and fully RoHS compliant

Halogen and antimony free (green unit)