MD7612F50YA2

High Voltage Low Power Consumption LDO MD7612 Series CMOS Voltage Regulator 1A MD7612 Series is a high voltage (up to 40V) low power 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. ■ Features ■ Applications Ultra-low Quiescent Current: 1.6uA ⚫ Maximum Input Voltage: 40V ⚫ Output Voltage Highly Accurate: ±2％ ⚫ Maximum Output Current: 1A ⚫ Dropout Voltage: 10mV@IOUT=10mA ⚫ Temperature Stability: ±45ppm/℃ ⚫ ON/OFF Logic = Enable High ⚫ Protections Circuits: Current Limiter, Foldback, Over Temperature Protection ⚫ Output Capacitor: Low ESR Ceramic Capacitor Compatible ⚫ ⚫ Active SCSI Terminators ⚫ Portable/ Plan Top/ Notebook Computers ⚫ High Efficiency Linear Regulators ⚫ SMPS Post Regulators ⚫ Mother B/D Clock Supplies ⚫ Disk Drives ⚫ Battery Chargers ■ Product Selections Ordering Name Product Name VOUT (V) Package MD7612A33 MD7612A36 MD7612A40 MD7612A50 MD7612AC0 MD7612E33 MD7612E36 MD7612E40 MD7612E50 MD7612EC0 MD7612C33 MD7612C36 MD7612C40 MD7612C50 3.3V 3.6V 4.0V 5.0V 12.0V 3.3V 3.6V 4.0V 5.0V 12.0V 3.3V 3.6V 4.0V 5.0V MD7612CC0 12.0V SOT-89-3L SOT-89-3L SOT-89-3L SOT-89-3L SOT-89-3L SOT-89-5L SOT-89-5L SOT-89-5L SOT-89-5L SOT-89-5L SOT-223-3L SOT-223-3L SOT-223-3L SOT-223-3L SOT-223-3L MD7612A33PA1 MD7612A36PA1 MD7612A40PA1 MD7612A50PA1 MD7612AC0PA1 MD7612E33PC1 MD7612E36PC1 MD7612E40PC1 MD7612E50PC1 MD7612EC0PC1 MD7612C33YA2 MD7612C36YA2 MD7612C40YA2 MD7612C50YA2 MD7612CC0YA2 第 1 页 共 13 页 Marking 7612A33 7612A36 7612A40 7612A50 7612AC0 7612E33 7612E36 7612E40 7612E50 7612EC0 7612C33 7612C36 7612C40 7612C50 7612CC0 Package Information Tape and Reel, 1000pcs Tape and Reel, 1000pcs Tape and Reel, 2500pcs MD7612F33 3.3V SOT-223-3L MD7612F33YA2 7612F33 MD7612F36 3.6V SOT-223-3L MD7612F36YA2 7612F36 MD7612F40 4.0V SOT-223-3L MD7612F40YA2 7612F40 MD7612F50 5.0V SOT-223-3L MD7612F50YA2 7612F50 MD7612FC0 12.0V SOT-223-3L MD7612FC0YA2 7612FC0 MD7612D33 MD7612D36 MD7612D40 MD7612D50 MD7612DC0 3.3V 3.6V 4.0V 5.0V 12.0V TO-252-2L TO-252-2L TO-252-2L TO-252-2L TO-252-2L MD7612D33UA2 MD7612D36UA2 MD7612D40UA2 MD7612D50UA2 MD7612DC0UA2 7612D33 7612D36 7612D40 7612D50 7612DC0 Tape and Reel, 2500pcs Tape and Reel, 2500pcs Notes: 1* Customer can request to customize the output voltage ranged from 1.2V to 15V 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. ■ Pin Configuration and Functions SOT89-3L(A_Type) TOP View SOT89-5L TOP View VOUT 2 5 7612AXX 1 2 3 GND VIN VOUT 1 NC 2 2 4 7612DXX 2 3 GND EN 2 1 VIN GND 3 VOUT SOT223-3L TOP View 2 2 7612CXX 2 VOUT VIN 7612EXX SOT223-3L TOP View 1 GND TO252-2L TOP View 3 VIN 7612FXX 1 VIN 2 GND 3 VOUT Pin Functions Name Description VIN Power Input Pin. EN Enable pin. Drive this pin high to enable the device. Drive this pin low to put the device into low current shutdown. VOUT Regulated output voltage pin GND Ground 第 2 页 共 13 页 ■ Absolute Maximum Ratings (Unless otherwise indicated: Ta=25℃) Parameter Symbol Ratings Units Input Voltage VIN -0.3 ~ 45 Output Voltage VOUT Vss-0.3 ~ VIN+0.3V Power Dissipation PD V SOT-89-3L SOT-89-5L SOT-223-3L 1000 1000 1500 TO-252-2L 1800 SOT-89-3L 100 SOT-89-5L SOT-223-3L TO-252-2L 100 66 55 Thermal Resistance RθJB(1) Operating Ambient Temperature Topr -40 ~ +85 Storage Temperature Tstg -40 ~ +125 ESD Protection ESD HBM 6000 Humidity sensitive level MSL 3 mW ℃/W ℃ V Note: Stresses above those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. (1) Mounted on JEDEC standard 4layer (2s2p) PCB test board ■ Typical Applications VIN + EN VOUT DC - + MD7612 GND VOUT COUT=2.2uF CIN=2.2uF - ■ Notes on Use Input Capacitor (CIN): 2.2µF above Output Capacitor (COUT): 2.2µF above Normally, if the input voltage (Vin) increases, it is better to increase the output capacitance (Cout) 第 3 页 共 13 页 ■ Electrical Characteristics MD7612 Series (Unless otherwise indicated：Ta=25℃) PARAMETER SYMBOL CONDITIONS MIN. TYP. MAX. UNIT Output Voltage*1 VOUT(S) VIN= VOUT(S)+2V，IOUT=10mA VOUT(S) 0.98 VOUT(S) VOUT(S) 1.02 V Dropout Voltage*2 VDROP IOUT=10mA 10 20 IOUT=1A 1000 1800 Line Regulation ΔVOUT ΔVIN • VOUT(s) VOUT(S)+2V≤VIN≤40V IOUT =1mA 0.01 0.02 20 40 VOUT2 VOUT(S)≤5.3V Load Regulation VOUT(S)＞5.3 40 80 Temperature Stability ΔVOUT Ta • VOUT(s) GND Current IGND Shutdown Current*3 ISHUT Input Voltage VIN Maximum Output Current IOUTMAX Current Limit*4 ILIM Short Circuit Current*5 ISHORT Power Supply Rejection Ratio PSRR VIN=VOUT(S)+2V 1mA≤IOUT≤300mA ppm/℃ ±45 -40℃≤Ta≤85℃ VOUT(S)5.3V 1.5 2.5 3 IOUT=100mA 480 VIN=40V，VEN=0V 0.1 --- 2.2 uA 1 40 V 1 A VIN= VOUT(S)+2V, VOUT = 0.9 ×VOUT(S) 1.6 VIN=VEN=VOUT(S)+2V 230 VOUT=0V f=10Hz, VOUT(S)=3.6V 72 f=100Hz,VOUT(S)=3.6V 70 f=1kHz, VOUT(S)=3.6V 65 mA dB EN ‘H’Level Voltage*3 VENH 1.6 40.0 EN ‘L’ Level Voltage*3 VENL 0 0.5 EN ‘H’Level Current*3 IENH VIN=40V, VEN=VIN -0.1 0.1 Voltage*3 IENL VIN=40V, VEN=0 -0.1 0.1 Over Temperature Protection OTP IOUT=10mA EN ‘L’ Level ％/V mV VIN = VOUT(S)+2V，IOUT=10mA No load mV 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. Parameters with EN pin. 4. ILIM : Output current when VIN=VOUT(S)+2V and VOUT = 0.95*VOUT(S). 5. VOUT pin should be shorted to GND pin, and the impedance between them is less than 0.1 ohm. 第 4 页 共 13 页 155 V uA ℃ ■ Typical Performance Characteristics (Continued) Test Conditions: VIN=VOUT+2.0V, CIN=2.2uF, COUT=2.2uF, 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 Output Voltage vs Input Voltage at VOUT=3.3V Output Voltage vs Output Current at VOUT=3.3V 第 5 页 共 13 页 ■ Typical Performance Characteristics (Continued) Test Conditions: VIN=VOUT+2.0V, CIN=2.2uF, COUT=2.2uF, unless otherwise indicated. Output Current Fold-back at VOUT=3.3V GND Current vs Output Current at VOUT=3.3V Dropout Voltage vs Temperature at VOUT=3.3V Power Supply Rejection Ratio at VOUT=3.3V Load Transient at VOUT=3.3V Load Transient at VOUT=3.3V (IOUT=1mA~100mA~1mA) (IOUT=1mA~300mA~1mA) 第 6 页 共 13 页 ■ Typical Performance Characteristics (Continued) Test Conditions: VIN=VOUT+2.0V, CIN=2.2uF, COUT=2.2uF, unless otherwise indicated. Load Transient at VOUT=3.3V Load Transient at VOUT=3.3V (IOUT=1mA~1A~1mA) (IOUT=0mA~1A) Load Transient at VOUT=3.3V Line Transient at VOUT=3.3V (IOUT=1A~0mA) (IOUT=1mA) Line Transient at VOUT=3.3V Line Transient at VOUT=3.3V (IOUT=10mA) (IOUT=300mA) 第 7 页 共 13 页 ■ Typical Performance Characteristics (Continued) Test Conditions: VIN=VOUT+2.0V, CIN=2.2uF, COUT=2.2uF, unless otherwise indicated. Power-Up at VOUT=3.3V Power-Up at VOUT=3.3V (IOUT=1mA)) (IOUT=1A) Power-Down at VOUT=3.3V Power-Down at VOUT=3.3V (IOUT=1mA) (IOUT=1A) 第 8 页 共 13 页 ■ Operational Explanation 1. 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 Limiter/Foldback Protection OTP Vref EN ON/OFF Control VOUT each circuit AMPLIFIER R1 Vfb Reference Voltage R2 GND 2. Pass transistor The pass transistor with low turn-on resistance used in MD7612 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. 3. Current foldback and over temperature protection The MD7612 series includes a combination of a fixed current limiter circuit and a foldback 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. This design can prevent the chip be damaged due to over temperature, moreover, the heat dissipation is limited by the package type. 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. 第 9 页 共 13 页 ■ Packaging Information 第 10 页 共 13 页 ■ Packaging Information (Continued) 第 11 页 共 13 页 ■ Packaging Information (Continued) 第 12 页 共 13 页 ■ Packaging Information (Continued) For the newest datasheet, please see the website： Version V1.1: 20210930 第 13 页 共 13 页 www.md-ic.com.cn