LTC3406ES5

The LTC3406ES5 is a kind of high efficiency monolithic synchronous buck regulator. It adopts a constant frequency, current mode architecture. The device is available in an adjustable version and fixed output voltages of 1.5 V and 1.8 V. The typical applications include cellular telephones, personal information appliances, wireless and DSL modems, digital still cameras, MP3 players and portable instruments.

There are some features of LTC3406ES5. (1)high efficiency: up to 96%; (2)very low quiescent current: only 20A during operation; (3)600 mA output current; (4)2.5 V to 5.5 V input voltage range; (5)1.5 MHz constant frequency operation; (6)no schottky diode required; (7)low dropout operation: 100% duty cycle; (8)0.6 V reference allows low output voltages; (9)shutdown mode draws 1A supply current; (10)current mode operation for excellent line and load transient response; (11)overtemperature protected; (12)low profile (1mm) thinSOTTM package.

What comes next is the absolute maximum ratings of LTC3406ES5. (1):input supply voltage is from -0.3 to 6 V; (2):RUN, VFB voltages is from -0.3 to VIN V; (3):SW voltage is from -0.3 to VIN+0.3 V; (4):P-Channel switch source current (DC) is 800 mA; (5):N-Channel switch sink current (DC) is 800 mA; (6):peak SW sink and source current is 1.3 A; (7): operating temperature range is from -40 to +85; (8):junction temperature is 125; (9):lead temperature (soldering, 10 seconds) is 300; (10):storage temperature range is from -65 to 150.