DESCRIPTION
The SP6122 is a PFM minimum on-time controller designed to work from a single 5V or 3.3V input supply. It is engineered specifically for size and minimum components count, simplifying the transition from a linear regulator to a switcher solution. However, unlike other “micro” parts, the SP6122 has an array of value added features like optional hiccup mode, over current protection, TTL enable, “jitter and frequency stabilization” and a fault flag pull down pin. Combined with reference and driver specifications usually found on more expensive integrated circuits, the SP6122 delivers great performance and value in a micro 8 package.

FEATURES
■ Optimized for Single Supply, 3V - 5.5V Applications
■ High Efficiency, Greater than 90% Possible
■ Small Micro 8 Package
■ 20ns/1nF PFET Output Driver
■ Fast Transient Response
■ Open Drain Fault Output Pin
■ Internal Soft Start Circuit
■ Accurate 1.5% Reference
■ Programmable Output Voltage or Fixed 1.5V Output
■ Loss-less Adjustable Current Limit with High side RDS(ON) Sensing
■ Hiccup or Lock-up Fault Modes
■ Low 5µA Sleep Mode Quiescent Current
■ Low 300µA Protected Mode Quiescent Current
■ Ultra Low, 150µA Unprotected Mode Quiescent Current
■ High Light Load Efficiency

APPLICATIONS
■ Video Cards
■ High Power Portable
■ Microcontrollers
■ I/O & Logic
■ Industrial Control
■ Distributed Power
■ Low Voltage Power