R1141Q SERIES 120mA LDO REGULATOR NO.EA-082-111027 OUTLINE The R1141Q Series consist of CMOS-based voltage regulator ICs with high output voltage accuracy, low supply current, low ON-resistance, and high ripple rejection. Each of these voltage regulator ICs consists of a voltage reference unit, an error amplifier, resistors for setting Output Voltage, a current limit circuit, and a chip enable circuit. Output Current Limit circuit is embedded in the R1141Q Series to prevent the break down of the IC caused by excess current. Chip enable circuit realizes standby mode and makes consumption current extremely small. These ICs perform with low dropout voltage and a chip enable function. The line transient response and load transient response of the R1141Q Series are excellent, making these ICs very suitable for the power supply for hand-held communication equipment. Their output voltage is internally fixed with high accuracy. Since the package for these ICs is SC-82AB (Super Mini-mold) package, high density mounting of the ICs on boards is possible. FEATURES Supply Current .............................................................Typ. 90A Standby Mode ..............................................................Typ. 0.1A Dropout Voltage ...........................................................Typ. 0.15V (IOUT=100mA, Output Voltage=3.0V Type) < Ripple Rejection...........................................................Typ. 75dB (VOUT 2.4V) = > Typ. 70dB (VOUT 2.5V) (f=1kHz) = Temperature-Drift Coefficient of Output Voltage ..........Typ. 100ppm/C Line Regulation ............................................................Typ. 0.02%/V < Output Voltage Accuracy..............................................1.5% or 30mV (VOUT 2.0V) = Excellent Dynamic Response Package.......................................................................SC-82AB (Super Mini-mold) Output Voltage Range..................................................1.5V to 4.0V (0.1V steps) (For other voltages, please refer to MARK INFORMATIONS.) Built-in Chip Enable Circuit (B/D : active high) Built-in Fold-back Protection Circuit............................ Typ. 40mA (Short Current) Ceramic capacitor can be used for Output pin ........... Recommended value is 2.2F or more. APPLICATIONS Power source for cellular phones such as GSM, CDMA and various kinds of PCS. Power source for electrical appliances such as cameras, VCRs and camcorders, and hand-held communication equipment. Power source for battery-powered equipment. Very stable Voltage Reference 1 R1141Q BLOCK DIAGRAMS R1141Qxx1B R1141Qxx1D VDD 4 1 VDD 4 1 VOUT VOUT Vref Vref Current Limit Current Limit CE 3 2 CE 3 2 GND GND SELECTION GUIDE The output voltage, auto discharge function for the ICs can be selected at the users request. Product Name Package Quantity per Reel Pb Free Halogen Free R1141Qxx1-TR-FE SC-82AB 3,000 pcs Yes Yes xx : The output voltage can be designated in the range from 1.5V(15) to 4.0V(40) in 0.1V steps. (For other voltages, please refer to MARK INFORMATIONS.) : The auto discharge function at off state are options as follows. (B) without auto discharge function at off state (D) with auto discharge function at off state 2