Datasheet Linear Technology LT8697IUDD#PBF — 数据表

LT8697
USB 5V 2.5A Output,
42V Input Synchronous Buck with
Cable Drop Compensation
FEATURES DESCRIPTION Wide Input Range: 5V to 42V
n Low Dropout Under All Conditions: 450mV at 2.1A
n Accurate 5V Output: ±1.3% Over Full Temperature
Range
n Programmable Cable Drop Compensatio Programmable Output Current Limit
n Output Current Monitor
n Dual Input Feedback Permits Regulation on Output
of USB Switch
n Forced Continuous Mode for Fast Load Step
Response
n High Efficiency Synchronous Operation at 2MHz: 93% Efficiency at 2.1A, 5VOUT from 12VIN 95% Efficiency at 0.9A, 5VOUT from 12VIN
n Fast Minimum Switch-On Time: 45ns
n Adjustable Output from 5.0V to 5.25V
n Adjustable and Synchronizable: 300kHz to 2.2MHz
n Small Thermally Enhanced 3mm × 5mm 24-Lead
QFN Package The LT®8697 is a compact, high efficiency, high speed
synchronous monolithic step-down switching regulator
designed to power 5V USB applications. A precise output
voltage and programmable cable drop compensation maintain accurate 5V regulation at the USB socket connected …