LTC3203-1 - Linear

LTC3203-1 500mA Output Current Low Noise Dual Mode Step-Up Charge Pumps

U U FEATURES ■ Selectable Dual Mode Operation: 1:1.5 or 1:2 ■ High Output Current: Up to 500mA ■ Low Noise Constant Frequency (1MHz/0.9MHz) Operation* ■ VIN Range: 2.7V to 5.5V ■ Adjustable Output Voltage (LTC3203/LTC3203B) ■ User Selectable Fixed Output Voltages: 4.5V or 5V (LTC3203-1 and LTC3203B-1) ■ Burst Mode® Operation with IQ ~ 120µA (LTC3203/LTC3203.

Features

■ Selectable Dual Mode Operation: 1:1.5 or 1:2
■ High Output Current: Up to 500mA
■ Low Noise Constant Frequency (1MHz/0.9MHz) Operation
*
■ VIN Range: 2.7V to 5.5V
■ Adjustable Output Voltage (LTC3203/LTC3203B)
■ User Selectable Fixed Output Voltages: 4.5V or 5V (LTC3203-1 and LTC3203B-1)
■ Burst Mode® Operation with IQ ~ 120µA (LTC3203/LTC3203-1)
■ Constant Freqency Operation at All Loads (LTC3203B/LTC3203B-1)
■ Soft-Start Limits Inrush Current at Turn-On
■ Short-Circuit/Thermal Protection
■ Shutdown Disconnects Load from Input
■ Shutdown Current: < 1µA
■ Available in a 10-pin (3mm × 3mm) DFN.