MD7218C18YA2

High Voltage Low Power Consumption LDO MD7218 Series CMOS Voltage Regulator 1A MD7218 series is a high voltage (up to 18V) ultra-low quiescent current low dropout voltage regulator (LDO) manufactured in CMOS processes. It can deliver up to 1A of current while consuming only 1.6uA of quiescent current. It consists of a reference voltage generator, an error amplifier, a current foldback circuit, and a phase compensation circuit plus a driver transistor. The MD7218 series is designed specifically for applications where very-low IQ is a critical parameter. This device maintains low quiescent current consumption even in dropout mode to further increase the battery life. ■ Features: ■ Applications: Ultra-low Quiescent Current: 1.6uA ⚫ Maximum Input Voltage: 18V ⚫ Output Voltage Highly Accurate: ±2％ ⚫ Maximum Output Current: 1A ⚫ Dropout Voltage: 1V@IOUT=1A ⚫ Temperature Stability: ±50ppm/℃ ⚫ ON/OFF Logic = Enable High ⚫ Protections Circuits: Current Limiter, Foldback, Thermal shutdown ⚫ Output Capacitor: Low ESR Ceramic Capacitor Compatible ⚫ ⚫ ⚫ ⚫ ⚫ Smart wearer Long-life battery-powered devices Portable mobile devices, such as mobile phones, cameras, and so on Wireless communication equipment ■ Typical Application: VIN + EN DC - VOUT GND CIN=2.2uF + MD7218 VOUT COUT=2.2uF - MD7218 Series High Voltage Low Power Consumption LDO ■ Pin Configuration (Top View): SOT89-3L(A_Type) Top View SOT223-3L(C_Type) Top View TO252-2L Top View VOUT VIN GND 2 2 2 7218AXX 7218CXX 1 2 3 GND VIN VOUT 1 2 3 GND VOUT VIN ESOP8 Top View SOT23-5L Top View 1 8 VIN NC 2 7 NC NC 3 6 NC EN 4 5 GND 7218EXX VOUT NC VOUT 4 5 7218 EXX VIN 2 4 7218EXX 1 2 3 VIN GND EN 2 3 NC GND EN SOT223-3L(F_Type) Top View GND 2 7218FXX 7218EXX 2 SOT89-5L Top View 5 2 GND 3 VOUT VOUT GND 1 1 VIN 1 SOT89-3L(E_Type) Top View VOUT 7218DXX 3 VIN 1 2 3 VIN GND VOUT ■ Product Selections Product Name MD7218A30 MD7218A33 MD7218A36 MD7218A38 MD7218A40 MD7218A50 MD7218AC0 MD7218EC0 MD7218E30 MD7218E33 MD7218E36 MD7218E38 MD7218E50 VOUT (V) Package 3.0 3.3 3.6 3.8 4.0 5.0 12.0 12.0 3.0 3.3 3.6 3.8 5.0 SOT89-3L SOT89-3L SOT89-3L SOT89-3L SOT89-3L SOT89-3L SOT89-3L SOT89-3L SOT89-5L SOT89-5L SOT89-5L SOT89-5L SOT89-5L Ordering Name MD7218A30PA1 MD7218A33PA1 MD7218A36PA1 MD7218A38PA1 MD7218A40PA1 MD7218A50PA1 MD7218AC0PA1 MD7218EC0PA1 MD7218E30PC1 MD7218E33PC1 MD7218E36PC1 MD7218E38PC1 MD7218E50PC1 2 / 16 Marking 7218A30 7218A33 7218A36 7218A38 7218A40 7218A50 7218AC0 7218EC0 7218E30 7218E33 7218E36 7218E38 7218E50 Package Information Tape and Reel, 1000pcs MD7218 Series High Voltage Low Power Consumption LDO MD7218C18 MD7218C30 MD7218C33 MD7218C36 MD7218C40 MD7218C50 MD7218CC0 MD7218F33 MD7218F50 MD7218D30 MD7218D33 MD7218D36 MD7218D40 MD7218D50 MD7218D80 MD7218DC0 MD7218E30 MD7218E33 MD7218E36 MD7218E40 MD7218E50 MD7218EC0 MD7218E30 MD7218E33 MD7218E36 MD7218E40 MD7218E50 1.8 3.0 3.3 3.6 4.0 5.0 12.0 3.3 5.0 3.0 3.3 3.6 4.0 5.0 8.0 12.0 3.0 3.3 3.6 4.0 5.0 12.0 3.0 3.3 3.6 4.0 5.0 SOT223-3L SOT223-3L SOT223-3L SOT223-3L SOT223-3L SOT223-3L SOT223-3L SOT223-3L SOT223-3L TO252-2L TO252-2L TO252-2L TO252-2L TO252-2L TO252-2L TO252-2L ESOP8 ESOP8 ESOP8 ESOP8 ESOP8 ESOP8 SOT23-5L SOT23-5L SOT23-5L SOT23-5L SOT23-5L MD7218C18YA2 MD7218C30YA2 MD7218C33YA2 MD7218C36YA2 MD7218C40YA2 MD7218C50YA2 MD7218CC0YA2 MD7218F33YA2 MD7218F50YA2 MD7218D30UA2 MD7218D33UA2 MD7218D36UA2 MD7218D40UA2 MD7218D50UA2 MD7218D80UA2 MD7218DC0UA2 MD7218E30SF4 MD7218E33SF4 MD7218E36SF4 MD7218E40SF4 MD7218E50SF4 MD7218EC0SF4 MD7218E30QC3 MD7218E33QC3 MD7218E36QC3 MD7218E40QC3 MD7218E50QC3 7218C18 7218C30 7218C33 7218C36 7218C40 7218C50 7218CC0 7218F33 7218F50 7218D30 7218D33 7218D36 7218D40 7218D50 7218D80 7218DC0 7218E30 7218E33 7218E36 7218E40 7218E50 7218EC0 7218E30 7218E33 7218E36 7218E40 7218E50 Tape and Reel, 2500pcs Tape and Reel, 2500pcs Tape and Reel, 4000pcs Tape and Reel, 3000pcs Notes: 1* Customer can request to customize the output voltage ranged from 1.8V to 12V, if desired voltage is not found in the selections. 2* Customer can request customization of package choice. 3* Please pay attention to the MARKING of the product package type. 3 / 16 MD7218 Series High Voltage Low Power Consumption LDO ■ Absolute Maximum Ratings (Unless otherwise indicated: Ta=25℃) PARAMETER Input Voltage Output Voltage SYMBOL VIN VOUT Power Dissipation PD Thermal Resistance RθJA Operating Ambient Temperature Storage Temperature ESD Protection RATINGS -0.3 ~ 20 Vss-0.3 ~ VIN+0.3V SOT89-3L 1000 SOT89-5L 1000 SOT223-3L 1500 TO252-2L 1800 ESOP8 800 SOT23-5L 250 SOT89-3L 100 SOT89-5L 100 SOT223-3L 66 TO252-2L 55 ESOP8 80 SOT23-5L 180 Topr -40 ~ +85 Tstg ESD HBM -40 ~ +125 4000 UNITS V mW ℃/W ℃ V Note: Stresses above those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. 4 / 16 MD7218 Series High Voltage Low Power Consumption LDO ■ Electrical Characteristics: MD7218 Series (Unless otherwise indicated：Ta=25℃) PARAMETER SYMBOL Output Voltage*1 VOUT(S) Dropout Voltage*2 VDROP Line Regulation Load Regulation Temperature Stability GND Current ΔVOUT ΔVIN • VOUT(s) VOUT2 ΔVOUT Ta • VOUT(s) IGND Shutdown Current ISHUT Input Voltage VIN Maximum Output Current IOUTMAX Current Limit*3 ILIM Power Supply Rejection Ratio*4 PSRR CONDITIONS MIN. VIN= VOUT(S)+2V，IOUT=1mA VOUT(S)0 .98 VOUT(S)=3.3V TYP. MAX. UNIT VOUT(S) VOUT(S)1 .02 V IOUT=1mA 3 8 IOUT=1A 1000 1300 0.01 0.02 VOUT(S)+2V≤VIN≤18V IOUT =1mA VIN=VOUT(S)+2V VOUT(S)≤5.0V 80 VOUT(S)>5.0V 90 ％/V mV 1mA≤IOUT≤1A VIN = VOUT(S)+2V，IOUT=1mA ppm/℃ ±50 -40℃≤Ta≤125℃ no load mV VOUT(S)≤5.0V 1 1.6 2 VOUT(S)>5.0V 1.5 2.3 3 IOUT=100mA 420 VIN=18V, VEN=0 0.1 --- 2.2 µA 1 18 V 1 A VIN= VOUT(S)+2V, VOUT = 0.95 ×VOUT(S) 1.5 f=10Hz, IOUT=10mA 75 f=100Hz, IOUT=10mA 80 f=1kHz, IOUT=10mA 65 VIN=VOUT(S)+2.0V dB Short Circuit Current*5 ISHORT EN ‘H’ Level Voltage VENH 1.5 18 EN ‘L’ Level Voltage VENL 0 0.5 EN ‘H’ Level Current IENH VIN=18V, VEN=VIN -0.1 0.1 EN ‘L’ Level Voltage IENL VIN=18V, VEN=0 -0.1 0.1 Over Temperature Protection OTP IOUT=1mA 30 VOUT=0V 150 Notes: 1. VOUT(S): Output voltage when VIN=VOUT+2V, IOUT=1 mA. 2. VDROP=VIN1 -（VOUT(S)× 0.98）where VIN1 is the input voltage when VOUT = VOUT(S)× 0.98. 3. ILIM: Output current when VIN=VOUT(S)+2V and VOUT = 0.95*VOUT(S). 4. PSRR was measured for VOUT(S) = 3.3V and VIN= 5.3V. 5. VOUT pin should be shorted to GND pin, and the impedance between them is less than 0.1 ohm 5 / 16 mA V uA ℃ MD7218 Series High Voltage Low Power Consumption LDO ■ Typical Performance Characteristics: Test Conditions: VIN=VOUT+2.0V, CIN=2.2μF, COUT=2.2μF, unless otherwise indicated. Output Voltage vs Temperature at VOUT=3.3V GND Current vs Temperature at VOUT=3.3V GND Current vs Input Voltage at VOUT=3.3V GND Current vs Input Voltage at VOUT=3.3V GND Current vs Output Current at VOUT=3.3V Output Voltage vs Output Current at VOUT=3.3V 6 / 16 MD7218 Series High Voltage Low Power Consumption LDO ■ Typical Performance Characteristics (Continued): Test Conditions: VIN=VOUT+2.0V, CIN=2.2μF, COUT=2.2μF, unless otherwise indicated. Output Voltage vs Input Voltage at VOUT=3.3V Output Current Fold-back at VOUT=3.3V Dropout Voltage vs Temperature at VOUT=3.3V Power Supply Rejection Ratio at VOUT=3.3V Ch1=VOUT Ch1=VOUT Ch4=IOUT Ch4=IOUT Load Transient at VOUT=3.3V Load Transient at VOUT=3.3V (IOUT=1mA~1A~1mA) (IOUT=1mA~300mA~1mA) 7 / 16 MD7218 Series High Voltage Low Power Consumption LDO ■ Typical Performance Characteristics (Continued): Test Conditions: VIN=VOUT+2.0V, CIN=2.2μF, COUT=2.2μF, unless otherwise indicated. Ch1=VOUT Ch1=VOUT Ch4=IOUT Ch4=IOUT Load Transient at VOUT=3.3V Load Transient at VOUT=3.3V (IOUT=0mA~1A) (IOUT=1A~0mA) Ch1=VOUT Offset=5.3V Ch1=VOUT Ch2=VIN Offset=5.3V Ch2=VIN Line Transient at VOUT=3.3V Line Transient at VOUT=3.3V (IOUT=1mA) (IOUT=10mA) Ch1=VOUT Ch1=VOUT Ch2=VIN Ch2=VIN Power-Up at VOUT=3.3V: Power-Up at VOUT=3.3V: (IOUT=1mA) (IOUT=1A) 8 / 16 MD7218 Series High Voltage Low Power Consumption LDO ■ Typical Performance Characteristics (Continued): Test Conditions: VIN=VOUT+2.0V, CIN=2.2μF, COUT=2.2μF, unless otherwise indicated. Ch1=VOUT Ch1=VOUT Ch2=VIN Ch2=VIN Power-Down at VOUT=3.3V: Power-Down at VOUT=3.3V: (IOUT=1mA)) (IOUT=1A) 9 / 16 MD7218 Series High Voltage Low Power Consumption LDO ■ Operational Explanation Output voltage control The voltage divided by resistors R1 and R2 is compared with the internal reference voltage by the error amplifier. The amplifier output then drives the P-channel MOSFET connected to the VOUT pin. The output voltage at the VOUT pin is regulated by this negative feedback system. The current limit circuit and short protect circuit operate in relation to output current level. Further, the IC's internal circuitry can be in operation or shutdown modes controlled by the CE pin's signal. VIN Current Fold-back Protection Vref EN ON/OFF Control VOUT each circuit AMPLIFIER R1 Vfb Reference Voltage R2 GND ■ Pass transistor The pass transistor with low turn-on resistance used in MD7218 is a P-channel MOSFET. If the potential on VOUT pin is higher than VIN, it is possible that IC will be destroyed due to reverse current which is caused by parasitic diodes between VIN and VOUT. Therefore, the VOUT pin potential exceeds VIN+0.3V is not allowed. ■ Current limit, over temperature protection The MD7218 series includes a combination of a fixed current limiter circuit which aid the operations of the current limiter and circuit protection. When the load current reaches the current limit level, the fixed current limiter circuit operates and output voltage drops. As a result of this drop in output voltage, the foldback circuit operates, output voltage drops further and output current decreases. Special attention should be paid to that the product of the dropout voltage on the chip and the output current must be smaller than the heat dissipation. If power consumption on the chip is more than the heat dissipation, OTP will protect the chip from damaging due to over temperature. ■ Notes: 1. The input and output capacitors should be placed as close as possible to the IC. 2. If the impedance of the power supply is high, which is caused by forgetting installing input capacitor or installing too small value capacitor, the oscillation may occur. 3. Pay attention to the operation conditions of input and output voltage and load current, such that the power consumption in the IC should not exceed the allowable power consumption of the package even though the chip has short circuit protection. 4. IC has a built-in anti-static protection (ESD) circuit, but please do not add excessive stress to the IC. 10 / 16 MD7218 Series High Voltage Low Power Consumption LDO ■ Packaging Information 11 / 16 MD7218 Series High Voltage Low Power Consumption LDO ■ Packaging Information (Continued) 12 / 16 MD7218 Series High Voltage Low Power Consumption LDO ■ Packaging Information (Continued) 13 / 16 MD7218 Series High Voltage Low Power Consumption LDO ■ Packaging Information (Continued) ESOP8 PACKAGE OUTLINE DIMENSIONS 14 / 16 MD7218 Series High Voltage Low Power Consumption LDO ■ Packaging Information (Continued) 15 / 16 MD7218 Series High Voltage Low Power Consumption LDO ■ Packaging Information (Continued) For the newest datasheet, please see the website: Version V1.1 www.md-ic.com.cn : 20220301 16 / 16