Diodes Incorporated introduces 4 A, 18 V Synchronous DC-DC Buck Converter. The AP62400 and AP62401 are high-efficiency, 4 A, synchronous step-down DC-DC converters that operate from a 4.2 V to 18 V input voltage range. The AP62400 achieves high light-load efficiency by going into PFM mode, while the AP62401 maintains a low output ripple by staying in PWM mode. The AP62400 and AP62401 output voltages are adjustable from 0.8 V to 7 V. Their switching frequency is preset at 800 kHz to balance external LC cost with efficiency. These buck converters include a full protection feature set that makes the system more robust including overcurrent protection, undervoltage lockout, and thermal shutdown.
Key features
- 4.2 V to 18 V Operating Voltage Range
Operates across the full 5 V~12 V voltage range of appliance and consumer electronics applications
- Built-In Current Source on EN Pin
Supports sequencing and tracking capability/control
- Internal 2.5 ms Soft-Start Time
Reduces start-up inrush currents
- Constant On-Time (COT) Control
Provides fast transient response; eases loop stabilization
- TSOT26 Pinout Compatibility Between 1.5 A, 2 A, 2.5 A, and 3 A Versions
Simplifies PCB layout with design flexibility
Click here to learn more about AP62400WU-7
