LD6991

LD6991/A 4/11/2008 90mA, Ultra Low Quiescent Current CMOS LDO Regulator with Voltage Detector Circuit REV:01b General Description The LD6991/A is an ultra low quiescent micropower linear regulator with voltage detector circuit. For regulator circuit, the precision of feedback reference voltage is within ±2% and output current is up to 90mA. As well, it can be stable with 1uF output capacitor which reduces the board space and cost. For voltage detector circuit, the reset threshold voltage accuracy is within ±2% and the reset time period is adjustable by an external capacitor. LD6991/A is available in a space saving SC70-6 package. +patent pending Features REGULATOR CIRCUIT z Low Dropout: 350mV @50mA z Ultra Low Quiescent Current: 5μA(typ) z Thermal Shutdown and Current Limiting Protection z Stable with 1μF Capacitor z Output Voltage: 1.5V to 3.3V (step 0.1V) VOLTAGE DETECTOR CIRCUIT z Reset Threshold Voltage 1.2V to 3.3V (step 0.1V) z Low Supply Current:3μA (typ) z Capacitor-Adjustable Reset Timeout Period z Reset Output Options Active-Low Open Drain (LD6991) Active-High Open Drain (LD6991A) Applications z Battery-Powered Equipment z Hand-Held Instruments Typical Application VDD V IN CIN 1μF/X5R 68nF VIN OUT 100K VOUT LD6991 VDD COUT 1μF/X5R CD RESET# GND Fig.1 Typical Application Circuit Leadtrend Technology Corporation LD6991/A-DS-01b, April 2008 1 Pin Configuration SC-70-6 (Top view) VIN VDD RESET# LD6991/A VIN VDD RESET 65 4 65 4 or KWXZ LWXZ 123 123...