The RT8004A is a high efficiency synchronous, step-down DC/DC converter. With an input voltage range is from 2.7V to 5.5V, it can provide adjustable regulated output voltage from 0.8V to 5V while delivering up to 4.5A of output current.
The internal power switch with 75mΩ on-resistance increases efficiency and eliminates the need for an external Schottky diode. Switching frequency is either set by an external resistor or synchronized to an external clock. 100% duty cycle provides low dropout operation, hence extending battery life in portable systems. External compensation allows the transient response to be optimized over a wide range of loads and output capacitors.
The RT8004A operates in Forced Continuous Mode which reduces noise and RF interference. 100% duty cycle in Low Dropout Operation further maximizes battery life.
應用
- Portable Instruments
- Battery-Powered Equipment
- Notebook Computers
- Distributed Power Systems
- IP Phones
- Digital Cameras