G9182/G9183 Global Mixed-mode Technology 300mA Low Dropout Regulator with External Bias Supply Features General Description The G9183 is a high performance positive voltage regulator designed for use in applications requiring very low Input voltage and very low dropout voltage at up to 300mA. It operates with a VIN as low as 1.25V and VBIAS voltage 3V with output voltage programmable as low as 0.8V. The G9183 features ultra low dropout, ideal for applications where VOUT is very close to VIN. Additionally, the G9183 has an enable pin to further reduce power dissipation while shutdown. The G9183 provides excellent regulation over variations in line, load and temperature. The G9183 provides a power OK signal to indicate if the voltage level of VO reaches 92% of its rating value. Input Voltage as Low as 1.25V and 5V Input Bias Supply current 100mV Dropout @ 300mA, as VO is 1.2V ±2% Output Voltage Adjustable Output Low to 0.8V 0.9V, 1.0V, 1.2V, 1.5V and 1.8V Options by Setting ADJ Pin Below 0.2V and Adjustable Externally Using Resistors VO Power OK Signal with 2ms Rising Edge Propagation delay Over Current and Over Temperature Protection Enable Pin TSOT-23-6, SOT-23-6 and SOP-8 Packages Applications The G9183 is available in the power TSOT-23-6, SOT-23-6 and SOP-8 package. It is available with 0.9V, 1.0V, 1.1V, 1.2V, 1.5V, 1.6V, 1.7V and 1.8V internally preset outputs that are also adjustable using external resistors. VID Power Supplies PDAs Notebook Computers Cell Phones Pin Configuration Typical Application Circuit G9182 VBIAS 1 G9183 6 VIN 100kΩ VBIAS (5V) GND 2 5 VO VEN 3 4 POK 1 8 GND TSOT-23-6 VEN 2 7 ADJ G9183 VIN 3 6 VO VBIAS 4 5 NC 6 VIN GND 2 5 VO VEN 3 4 ADJ VBIAS VEN G9183 POK VBIAS 1 VBIAS POK VIN VIN VO VO R1 CPP 1µF C1 10µF GND ADJ C2 10µF R2 SOP-8 VO = 0.8 (R1+R2) Volts R2 TSOT-23-6/SOT-23-6 TEL: 886-3-5788833 http://www.gmt.com.tw Ver: 0.9 Sep 16, 2013 1