MaxLinear MxL7650x 18V Synchronous Step-Down Converters

MaxLinear MxL7650x Synchronous Step-Down (Buck) Converters support up to 18V input with 2A, 3A, or 8A output capability, using constant-on-time (COT) control for fast transient response, high efficiency, and minimal external components. These high-efficiency, fully integrated synchronous step-down (buck) DC-DC converters are available in compact SOT-23-6 and 3mm x 3mm QFN packages..The compact, high-performance devices offer robust protection features that simplify power delivery for modern, multi-rail systems. MaxLinear MxL7650x converters feature a 0.6V to 18V output voltage range and a 700KHz to 720KHz switching frequency range. These converters are stable in operation with low ESR ceramic output capacitors. Typical applications include laptops, tablet PCs, networking and Ethernet systems, personal video recorders, flat-panel TVs and monitors, and distributed power systems.

Features

Up to 18V input voltage range
0.6V to 18V output voltage range
2A, 3A, and 8A continuous output current
Supports 100% duty cycle low-dropout operation
Stable operation with low ESR ceramic output capacitors
Fast Pulse-Width Modulation (PWM) COT control with superior transient performance
700KHz (MxL76508) and 720KHz (MxL76502 and MxL76503) switching frequencies

Integrated High-Side (HS)/Low-Side (LS) power switches
Accurate EN/UVLO threshold
High-efficiency operation at light load (MxL7650xN)
FPWM mode of operation (MxL7650xA)
Thermal shutdown with auto-recovery
Hiccup mode short-circuit protection
Available in space-saving SOT23-6L (MxL76502/03) and 3mm x 3mm QFN-16L (MxL76508) packages

Applications

MxL76502/MxL76503
- Personal video recorders
- Tablet PCs
- Laptops
- Flat-panel TVs and monitors
- Networking systems
- Distributed power systems

MxL76508
- USB Type-C^® and power delivery (PD) docking stations
- Laptops
- Flat-panel TVs and monitors
- Networking systems
- Distributed power systems