LTC1649CSTR

The LTC1649CSTR is one member of the LTC1649 family which is designed as the high power, high efficiency switching regulator controller. It can be used in (1)3.3V input power supply for low voltage microprocessors and logic; (2)low input voltage power supplies; (3)high power, low voltage regulators; (4)local regulation for multiple voltage distributed power systems. And this device uses a 200kHz switching frequency and voltage mode control, minimizing external component count and size.

Features of the LTC1649CSTR are:(1)high power 3.3V to 1.xV-2.xV switching regulator controller: up to 20A output; (2)all N-channel external MOSFETs; (3)provides 5V MOSFET gate drive with 3.3V input; (4)constant frequency operation minimizes inductor size; (5)excellent output regulation: ±1% over line, load and temperature variations; (6)high efficiency: over 90% possible; (7)no low-value sense resistor needed; (8)available in 16-lead SO package.

The absolute maximum ratings of the LTC1649CSTR can be summarized as:(1)supply voltage (VIN):6 V;(2)supply voltage (Vcc):9 V;(3)supply voltage (Pvcc1, 2):13 V;(4)input voltage (IFB):-0.3V to 18V;(5)input voltage (C+,C-):-0.3V to (VIN+0.3V);(6)input voltage (all other inputs):-0.3V to (Vcc+0.3V);(7)operating temperature range:0°C to 70°C;(8)storage temperature range:-65°C to 150°C;(9)lead temperature (soldering, 10 sec):300°C. If you want to know more information such as the electrical characteristics about the LTC1649CSTR, please download the datasheet in www.seekic.com or www.chinaicmart.com.