ME6217C33M5G

ME6217 High Output Current LDO Regulator , High PSRR , Low Dropout, ME6207 Series General Description Features The ME6217 Series is a positive voltage regulator with a low dropout voltage,high output voltage accuracy,and low crrent consumption developed based on CMOS technology. A built-in low on-resistance transistor provides a low dropout voltage and large output current, a built-in overcurrent protector prevents the load current from exceeding the current capacitance of the output transistor. An ON/OFF circuit ensures a long battery life. Compared with the voltage regulators using the conventional CMOS process, a larger variety of capacitors are available, including small ceramic capacitors.           Maximum Output Current: 800 mA （VIN≥VOUT(T)+1.0V） Dropout Voltage: 100mV@ IOUT =300mA, VOUT =5.0V Operating Voltage Range: 2V～6.5V Output Voltage：1.5V~5.6V ，selectable in 0.1V steps Highly Accuracy: ±1％ Low Current Consumption: During Operation: 100uA（TYP.） During Shutdown:0.1uA（TYP.） High Ripple Rejection: 65dB@1KHz (ME6217C50) Line Regulation: 0.05％（TYP.） Thermal Shutdown Protection：160℃ Small Packages: SOT-89-5,SOT23-5，SOT89-3 Typical Application Selection Guide     Power supply for DVD and CD-ROM drives Power supply for personal communication device Power supply for battery-powered devices Power supply for note PCs Typical Application Circuit V02 www.microne.com.cn Page 1 of 10 ME6217 Pin Configuration SOT-89-5 SOT23-5 SOT89-3 Pin Assignment ME6217AXX Pin Number Pin Name Functions 1 VSS Ground 2 VIN Input Voltage 3 VOUT Output Voltage SOT89-3 ME6217CXX Pin Number Pin Name Functions 3 CE ON / OFF Control 2 2 VSS Ground 3 4 NC No Connect 4 1 VIN Input Voltage 5 5 VOUT Output Voltage SOT89-5 SOT23-5 1 Absolute Maximum Ratings Parameter Symbol Ratings Units Input Voltage VIN 7.0 V Output Current IOUT 800 mA Output Voltage VOUT Vss-0.3～VIN +0.3 V CE Pin Voltage VCE Vss-0.3～VIN +0.3 V PD 1000 mW Operating Temperature Range TOPR －40～＋85 ℃ Storage Temperature Range TSTG －40～＋125 ℃ Power Dissipation V02 SOT-89-5 www.microne.com.cn Page 2 of 10 ME6217 Block Diagram V02 www.microne.com.cn Page 3 of 10 ME6217 Electrical Characteristics (VIN= VOUT (T) +1.0V，VCE = VIN，CIN=CL=10uF，Ta=25OC ,unless otherwise noted) Parameter Output Voltage Symbol VOUT(E) (Note 2) Input voltage VIN Maximum Output IOUTMAX Current (Note 4) Load Regulation Line Regulation Dropout Voltage Current consumption during operation Current consumption during shutdown Conditions IOUT=100mA Min. X 0.99 VOUT (T) (Note 1) Max. Units X 1.01 V 2.0 - 6.5 V VIN≥ VOUT (T) +1.0V - 800 - mA ∆VOUT 1mA≤IOUT≤300mA - 10 50 mV ∆VOUT IOUT =100mA - 0.1 0.3 %/V 1.8V≤VOUT (T)≤2.0V - 200 260 3.0V≤VOUT (T)≤5.5V - 100 180 - 100 130 μA - 0.1 1.0 μA 1.5 - - V - - 0.3 V ∆VIN • VOUT VDIF (Note 3) ISS1 ISS2 - Typ. VOUT (T) +0.5V ≤VIN≤6.5V IOUT =300mA mV CE pin = ON, no load CE pin = OFF, no load CE “High” Voltage VCEH Start up,RL=1.0KΩ CE “Low” Voltage VCEL Shut down, RL=1.0KΩ CE “High” Current ICEH VIN=6.5V,VCE=6.5V -0.1 - 0.1 μA CE “Low” Current ICEL VIN=6.5V,VCE=0V -0.1 - 0.1 μA - 70 - VIN=6V , △Vrip=0.5Vrms, Ripple Rejection Rate |RR| IOUT=100mA, f=1kHz Short-circuit current Ishort Thermal Shutdown Protection Tsd 1.8V≤VOUT (T)≤2.0V dB 3.0V≤VOUT (T)≤5.5V CE pin = ON, VOUT = 0 V IOUT=1mA,VIN= VOUT+1V - 65 - - 350 - mA ℃ 160 Note ： 1. VOUT (T) ：Specified Output Voltage 2.VOUT (E) ：Effective Output Voltage ( le. The output voltage when “VOUT (T)+1.0V”is provided at the Vin pin while maintaining a certain Iout value.) 3.VDIF：VIN1 –VOUT (E)’ VIN1 ：The input voltage when VOUT(E)’ appears as input voltage is gradually decreased. VOUT (E)’=A voltage equal to 98% of the output voltage whenever an amply stabilized Iout {VOUT (T)+1.0V} is input. 4. IOUTMAX：Due to restrictions on the package power dissipation, this value may not be satisfied. Attention should be paid to the power dissipation of the package when the output current is large.This specification is guaranteed by design. V02 www.microne.com.cn Page 4 of 10 ME6217 Operation 1. Basic operation Figure 1 shows the block diagram of the ME6217 Series. The error amplifier compares the reference voltage (Vref) with Vfb, which is the output voltage resistance-divided by feedback resistors Rs and Rf. It supplies the output transistor with the gate voltage necessary to ensure a certain output voltage free of any fluctuations of input voltage and temperature. Figure 1 2. Output transistor The ME6217 Series uses a low on-resistance P-channel MOS FET as the output transistor.Be sure that VOUT does not exceed VIN + 0.3 V to prevent the voltage regulator from being damaged due to inverse current flowing from VOUT pin through a parasitic diode to VIN pin. 3. Shutdown pin (CE pin) This pin starts and stops the regulator. When the CE pin is set to the shutdown level, the operation of all internal circuits stops, and the built-in P-channel MOS FET output transistor between the VIN pin and VOUT pin is turned off to substantially reduce the current consumption. The VOUT pin becomes the VSS level due to the internally divided resistance of several hundreds kΩ between the VOUT pin and VSS pin. Since the CE pin is neither pulled down nor pulled up internally, do not use it in the floating state. In addition, note that the current consumption increases if a voltage of 0.3 V to VIN − 0.3 V is applied to the CE pin. Table 1 CE Pin Internal Circuits VOUT Pin Voltage Current Consumption “H” Power on Operating Set value ISS1 “L” Power off Stopped Vss level ISS2 V02 www.microne.com.cn Page 5 of 10 ME6217 Precautions 1. Wiring patterns for the VIN, VOUT and GND pins should be designed so that the impedance is low.When mounting an output capacitor between the VOUT and VSS pins (CL) and a capacitor for stabilizing the input between VIN and VSS pins (CIN), the distance from the capacitors to these pins should be as short as possible. 2.Note that the output voltage may increase when a series regulator is used at low load current (1.0 mA or less). 3.Generally a series regulator may cause oscillation, depending on the selection of external parts. The following conditions are recommended for this IC. However, be sure to perform sufficient evaluation under the actual usage conditions for selection, including evaluation of temperature characteristics. Input capacitor (CIN): 4.7 µF or more Output capacitor (CL): 4.7 µF or more Equivalent series resistance (ESR): 0.5 Ω or less 4. The voltage regulator may oscillate when the impedance of the power supply is high and the input capacitor is small or an input capacitor is not connected. 5.The application conditions for the input voltage, output voltage, and load current should not exceed the package power dissipation. 6. Do not apply an electrostatic discharge to this IC that exceeds the performance ratings of the built-in electrostatic protection circuit. 7. SII claims no responsibility for any disputes arising out of or in connection with any infringement by products including this IC of patents owned by a third party. V02 www.microne.com.cn Page 6 of 10 ME6217 Type Characteristics （1） Input VoltageVS.Output Voltage（Ta = 25 °C） ME6217C50P5G VOUT-VIN 5.1 VOUT(V) 5.0 4.9 300mA 4.8 100mA A 10mA 4.7 4.6 1mA 4.5 4.5 5.0 5.5 6.0 6.5 7.0 VIN(V) （2） Output Current VS.Droput Voltage（VIN= VOUT (T) +1.0V,Ta = 25 °C） ME6217C50P5G VDROP-IOUT VDROP(V) 350 300 250 200 150 100 50 0 100 200 300 400 500 600 700 800 IOUT(mA) （3）Input Voltage VS. Current Consumption（Ta = 25 °C） ME6217C50P5G V02 www.microne.com.cn Page 7 of 10 ME6217 Package Information: SOT89-5 SOT23-5 V02 www.microne.com.cn Page 8 of 10 ME6217 SOT89-3 V02 www.microne.com.cn Page 9 of 10 ME6217      V02 The information described herein is subject to change without notice. Nanjing Micro One Electronics Inc is not responsible for any problems caused by circuits or diagrams described herein whose related industrial properties, patents, or other rights belong to third parties. The application circuit examples explain typical applications of the products, and do not guarantee the success of any specific mass-production design. Use of the information described herein for other purposes and/or reproduction or copying without the express permission of Nanjing Micro One Electronics Inc is strictly prohibited. The products described herein cannot be used as part of any device or equipment affecting the human body, such as exercise equipment, medical equipment, security systems, gas equipment, or any apparatus installed in airplanes and other vehicles, without prior written permission of Nanjing Micro One Electronics Inc. Although Nanjing Micro One Electronics Inc exerts the greatest possible effort to ensure high quality and reliability, the failure or malfunction of semiconductor products may occur. The user of these products should therefore give thorough consideration to safety design, including redundancy, fire-prevention measures, and malfunction prevention, to prevent any accidents, fires, or community damage that may ensue. www.microne.com.cn Page 10 of 10