LESHAN RADIO COMPANY, LTD. LR6218 Series Low Dropout Voltage 300mA CMOS LDO Regulator INTRODUCTION FEATURE The LR6218 Series are a group of positive voltage regulators manufactured by CMOS technologies with high ripple rejection, extremely low power consumption and low dropout voltage, which provide large output currents even when the difference of the input-output voltage is small. Each of the LR 6218 series consists of a high-precision voltage reference, an error correction circuit, and a current limited output driver. Thus the series are very suitable for the battery-powered equipments, such as Portable/Palm computers, Portable consumer equipments, industry equipments and so on, which want to prolong the using life of the battery. ● Maximum Output Current: 300mA（Typ.） ● Output Voltage Range: 0.9V～5.0V, （selectable in 0.1V steps） ● High Accuracy: ±2％（Typ.） ● Dropout Voltage: 150mV@100mA（3.0V Typ.） ● Excellent Line Regulation: 0.1％/V ● Built-in Current Limiter ● Built-in Short Circuit Protection ● Static safety, 2KV@HBM ● TC: 100ppm/℃ ● Low ESR Capacitor: Ceramic Compatible APPLICATION ● Battery powered systems ● Portable instrumentations ● Reference Voltage Sources ● Radio control systems ● Portable/Palm computers ● Portable consumer equipments BLOCK DIAGRAM ORDER INFORMATION LR6218 1/7 LESHAN RADIO COMPANY, LTD. PIN CONFIGURATION LR6218E（Pin output sequence can be ordered by customer） SOT23-5 PIN NUMBER PIN NAME 1 2 3 4 5 VIN CE NC VOUT PIN NUMBER PIN NAME 1 2 3 4 5 VOUT FUNCTION Power Input Pin Ground Chip Enable Pin No Connection Output Pin VSS SOT89-5 FUNCTION Output Pin Ground No Connection Chip Enable Pin Power Input Pin VSS NC CE VIN ABSOLUTE MAXIMUM RATINGS PARAMETER SYMBOL Rating UNIT Input Voltage VIN 8 V Output Current IOUT 600 mA Output Voltage VOUT Vss-0.3~Vout+0.3 V SOT23 Pd 250 mW SOT89 Pd 500 mW TO92 Pd 500 mW Operating Temperature TOpr -40~+85 ℃ Storage Temperature Tstg -55~+125 ℃ Soldering Temperature & Time Tsolder 260℃, 10s Power Dissipation 2/7 LESHAN RADIO COMPANY, LTD. ELECTRICAL CHARACTERISTICS LR6218 Series (CIN = COUT = 1μF，Ta=25℃) PARAMETER SYMBOL CONDITIONS MIN. TYP. MAX. UNITS Output Voltage VOUT(E) (Note 2) IOUT=40mA VIN= VOUT +1V VOUT *0.98 VOUT VOUT *1.02 V Supply Current ISS VCE=VIN=Vout+1V Standby Current Istandby VCE = VSS Output Current IOUT － Dropout Voltage (Note 3) Vdif1 IOUT = 40mA 60 mV Vdif2 IOUT = 100mA 150 mV Load Regulation ∆VOUT VIN= VOUT +1V, 1mA≤IOUT≤100mA 10 mV Line Regulation ∆VOUT ∆VIN * VOUT IOUT = 40mA VOUT +1V≤VIN≤6V 0.1 %/V Output Voltage Temperature Characteristics ∆VOUT ∆T * VOUT IOUT = 40mA -40≤T≤+85 100 ppm Power Supply Ripple Rejection PSRR IOUT =10mA f = 1kHz 60 dB Short Current IShort VOUT = VSS 50 mA Current Limit ILim VIN= VOUT +1V Input Voltage VIN － CE "High" Voltage VCE “H” CE "Low" Voltage VCE “L” 5 μA 0.1 μA 300 mA 600 mA 2 6 V 1.0 VIN V 0.2 V NOTE: 1. VOUT：Specified Output Voltage. 2. VOUT (E) ：Effective Output Voltage ( I.e. The Output Voltage When VIN = (VOUT +1.0V) And Maintain A Certain IOUT Value). 3. Vdiff ：The Difference Of Output Voltage And Input Voltage When Input Voltage Is Decreased Gradually Till Output Voltage Equals To 98% Of VOUT (E). 3/7 LESHAN RADIO COMPANY, LTD. TYPICAL APPLICATION CIRCUIT LR6218E（SOT23-5） Typical Performance Characteristics (1) Output Voltage vs Input Voltage LR6218E30P LR6218E30P (2) Input Transient Response LR6218E30P LR6218E30P 4/7 LESHAN RADIO COMPANY, LTD. (3) Input Transient Response LR6218E30P LR6218E30P (4) Temperature LR6218E30P 5/7 LESHAN RADIO COMPANY, LTD. PACKAGING INFORMATION ● SOT-23-5 6/7 LESHAN RADIO COMPANY, LTD. ● SOT-89-5 7/7