Global Mixed-mode Technology Inc. AT1203 Low Noise, 300mA CMOS LDO Regulator Features General Description SOT-23-5,SOT-23-3 and SOT89 Packages. Low Dropout Voltage：350mV. Low Output Noise. Low Quiescent Current：90μA. Guaranteed 300mA Output Current. Fixed Output Voltage：1.5V, 1.8V, 1.9V, 2.5V, 2.8V, 3.0V, 3.1V, 3.3V, 4.2V and 5.0V. Built-In Current Limit. Built-In Thermal Shutdown. Built-In LDO ON/OFF Control. The AT1203 is an ultra-low noise, low dropout voltage, low quiescent current CMOS LDO, capable of delivering up to 300mA. This LDO provides factory preset 1.5V, 1.8V, 1.9V, 2.5V, 2.8V, 3.0V, 3.1V, 3.3V, 4.2V and 5.0V fixed output voltage. That is ideally suited for input powered（2.5V~5.5V） from Li-Ion, NiCd, NiMH, Alkaline battery or USB-Base power system. Designed with an internal P-channel MOSFET pass elements maintain ultra-low supply current throughout the whole entire operating range. Applications Cellular Phones Wireless Devices Portable Electronics Battery Powered Systems The AT1203 is protected with current limit, ON/OFF control and thermal shutdown. Pin Configuration Typical Application Circuit TEL: 886-3-5788833 http://www.gmt.com.tw Ver: 1.1 Oct 18, 2010 1 AT1203 Global Mixed-mode Technology Inc. Ordering Information Part Number AT1203-18E_GRE AT1203-25E_GRE AT1203-28E_GRE AT1203-30E_GRE AT1203-31E_GRE AT1203-15U_GRE AT1203-18U_GRE AT1203-25U_GRE AT1203-28U_GRE AT1203-30U_GRE AT1203-31U_GRE AT1203-18X_GRE AT1203-25X_GRE AT1203-27X_GRE AT1203-28X_GRE AT1203-30X_GRE AT1203-31X_GRE AT1203-33X_GRE AT1203-42X_GRE AT1203-18C_GRE AT1203-33C_GRE ▲▲▲▲, ▲▲▲▲▲: Date Code □□, □：Output Voltage Package (Green) Marking SC-70-5 SC-70-5 SC-70-5 SC-70-5 SC-70-5 SOT-23-3 SOT-23-3 SOT-23-3 SOT-23-3 SOT-23-3 SOT-23-3 SOT-23-5 SOT-23-5 SOT-23-5 SOT-23-5 SOT-23-5 SOT-23-5 SOT-23-5 SOT-23-5 SOT-89 SOT-89 REMARK ▲▲▲▲ L3□ ▲▲▲▲ 203□□ OBSOLETE 203□□ 203□□ * For marking more information, contact our sales representative directly TEL: 886-3-5788833 http://www.gmt.com.tw Ver: 1.1 Oct 18, 2010 2