LTC3406ABES5#TRMPBF

LTC3406AB is a high efficiency monolithic synchronous buck regulator using a constant frequency, current mode architecture. 100% duty cycle provides low dropout operation, extending battery run time in portable systems. PWM pulse skipping mode operation provides very low output ripple voltage for noise sensitive applications. Switching frequency is internally set at 1.5MHz, allowing the use of small surface mount inductors and capacitors. The internal synchronous switch increases efficiency and eliminates the need for an external schottky diode. Low output voltages are easily supported with the 0.6V feedback reference voltage. It is widely used in application such as cellular telephones, satellite and GPS receivers, wireless and DSL modems, digital still cameras, media players, portable instruments etc.

• 600mA output current
• Input voltage range is 2.5V to 5.5V
• Oscillator frequency is 1.5MHz typical at (VFB = 0.6V)
• Low quiescent current is 200µA typical at (VFB = 0.63V)
• Regulated feedback voltage is 0.6V typical
• Internal soft-start limits inrush current
• Current mode operation for excellent line and load transient response
• Overtemperature protected
• Shutdown mode (supply current) is 1µA maximum at (VRUN = 0V, VIN = 5.5V)
• Operating temperature is -40°C to 85°C, package style is 5-lead plastic TSOT-23

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party