ME6231A33PG

ME6231 18V, Low Power, High Accuracy, High PSRR LDO Regulators Description Feature The ME6231 series are high accuracy, CMOS LDO  （VIN＝4.3V,VOUT＝3.3V） Voltage Regulators, offering low power, high ripple rejection ratio and low dropout. the ME6231 series is Maximum Output Current: 500mA  ideal for today’s cutting edge mobile phone. Internally Dropout Voltage: 125mV@IOUT =100mA（VOUT＝ 3.3V） the ME6231 includes a reference voltage source, error  Operating Voltage Range: 3V~18V amplifiers, driver transistors, current limiters and phase  Output Voltage Range: 1.6V~5.0V compensators. The ME6231’s current limiters' foldback  Highly Accuracy: ±1％ circuit also operates as a short protect for the output  Low Power Consumption: 1.8uA（TYP.） current limiter and the output pin. The ME6231 series is  Standby Current: 0 uA（TYP.） also fully compatible with low ESR ceramic capacitors,  High Ripple Rejection: 65dB@1KHz（ME6231C33） reducing cost and improving output stability. This high  Line Regulation: 0.035％/V（TYP.） level of output stability is maintained even during  Built-in temperature protection and current limiting frequent load fluctuations, due to the excellent transient protection response performance and high PSRR achieved across a broad range of frequencies. The CE function allows the output of regulator to be turned off, resulting in greatly reduced power consumption. Applications Package  Mobile phones  3-pin SOT23-3、SOT89-3  Cordless phones, radio communication equipment  5-pin SOT23-5  Portable games  Cameras, Video cameras  Reference voltage sources  Battery powered equipment V03 www.microne.com.cn Page 1 of 11 ME6231 Typical Application Circuit VOUT VIN CIN 10uF ME6231 ON CL 10uF CE OFF Vss Note: Ceramic capacitor with X7R and X5R offer improved voltage and temperature coefficients.10uF Ceramic capacitor is recommended for excellent load transient response and linne transient response. Selection Guide ME 62 31 X XX XX G Environment mark Package M3：SOT23-3 P：SOT89-3 M5：SOT23-5 Output Voltage 18：1.8V 33：3.3V Version or Function Product Type Product Series Microne product serise Product Function ME6231A33M3G VOUT=3.3V；Package：SOT23-3 ME6231A33PG VOUT=3.3V；Package：SOT89-3 ME6231C18M5G Enable can be set；VOUT=1.8V；Package：SOT23-5 ME6231C33M5G Enable can be set；VOUT=3.3V；Package：SOT23-5 NOTE: At present ,there are two kinds of voltage value：1.8V，3.3V。 If you need other voltage and package, please contact our sales staff。 V03 www.microne.com.cn Page 2 of 11 ME6231 Pin Configuration（Top View） VOUT NC VIN 4 3 5 1 2 3 1 2 1 2 3 VIN Vss CE VSS VOUT VSS VIN VOUT SOT23-5 SOT23-3 SOT89-3 Pin Assignment PIN Number (SOT23-5) PIN Number (SOT23-3) PIN Number (SOT89-3) symbol Function 1 3 2 VIN Power Input 2 1 1 Vss Ground 3 - - CE ON/OFF Control 4 - - NC No Connect 5 2 3 VOUT Output V03 www.microne.com.cn Page 3 of 11 ME6231 Block Diagram VIN VOUT Current Limit VREF Thermal Shutdown + R1 R2 CE Enable Block CE Active Discharge VSS Absolute Maximum Ratings Parameter Symbol Ratings Units Input Voltage VIN -0.3 ~ 20 V CE Pin Voltage VCE VIN -0.3 ~ VIN+0.3 V VOUT Voltage VOUT VIN -0.3 ~ VIN+0.3 V VOUT Current IOUT 600 mA SOT23-5 Internal Power Dissipation（TA=25℃） Thermal resistance (Junction to air) SOT23-3 0.6 Pd 0.54 SOT89-3 0.7 SOT23-5 210 SOT23-3 θJA SOT89-3 W ℃/W 230 180 Operating Ambient Temperature Range TOpr -40~+85 ℃ Storage Temperature Range Tstg -55~+150 ℃ Maximum junction temperature TJ -40~+150 ℃ V03 www.microne.com.cn Page 4 of 11 ME6231 Electrical Characteristic (VIN= VOUT+1V，VCE = VIN，CIN=CL=1uF，Ta=25OC , unless otherwise noted) Parameter Symbol Conditions Min. Typ. Max. Units 3 - 18 V X 0.99 VOUT (T) (Note 1) X 1.01 V Operating Input Voltage VIN Output Voltage VOUT(E) (Note 2) IOUT=10mA,VIN= VOUT+1V Maximum Output Current IOUTMAX VIN= VOUT+1V - 500 - mA Load Regulation ∆VOUT VIN= VOUT+1V,1mA≤IOUT≤100mA - 7 20 mV 1.8V≤VOUT＜2.5V - 220 - 2.5V≤VOUT＜3.0V - 160 - 3.0V≤VOUT - 125 - Dropout Voltage (Note 3) IOUT =100mA VDIF Supply Current ISS VIN= VOUT+1V - 1.8 3.6 μA Stand-by Current ICEL VCE＝0V - 0 0.2 μA Line Regulation ΔVOUT ΔVIN  VOUT IOUT =30mA, VOUT+1V ≤VIN≤18V - 0.05 - %/V Output Current Limit ILIM Peak Output Current - 780 - mA CE “High” Voltage VCEH Start up 1.5 - - V CE “Low” Voltage VCEL Shut down - - 0.5 V Active Output Discharge Resistance RDIS VCE