Datasheet Analog Devices LTC3403EDD#PBF — 数据表

LTC3403
1.5MHz, 600mA
Synchronous Step-Down
Regulator with Bypass Transistor U FEATURES
■
■ ■
■
■
■
■
■
■
■
■
■ ■
■ DESCRIPTIO The LTC ®3403 is a high efficiency monolithic synchronous buck regulator optimized for WCDMA power amplifier applications. The output voltage can be dynamically
programmed from 0.3V to 3.5V. At VOUT > 3.6V an internal
bypass P-channel MOSFET connects VOUT directly to VIN,
eliminating power loss through the inductor. Selectable
forced continuous mode enables fast VOUT response to the
controlling input. Dynamically Adjustable Output from 0.3V to 3.5V
Very Low Quiescent Current: Only 20µA
During Operation …