MD85A40PA1

High Voltage Low Power Consumption LDO MD85XX Series CMOS Voltage Regulator With ON/OFF Switch 300mA MD85XX is a high voltage (up to 40V) ultra-low quiescent current low dropout voltage regulator (LDO) manufactured in CMOS processes. It can deliver up to 300mA of current while consuming only 1.5uA 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 MD85XX 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. When in shutdown or disabled mode, the device consumes less than 100-nA IQ even with input voltage of 40V that helps increase the shelf life of the battery. ■ Features ■ Applications Ultra-low Quiescent Current: 1.5uA ⚫ Maximum Input Voltage: 40V ⚫ Output Voltage Highly Accurate: ±2％ ⚫ Maximum Output Current: 300mA ⚫ Dropout Voltage: 4mV@IOUT=1mA ⚫ Temperature Stability: ±50ppm/℃ ⚫ ON/OFF Logic = Enable High ⚫ Protections Circuits: Current Limiter, Short Circuit, 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 Applications VIN + EN DC - VOUT GND CIN=2.2uF + MD85XX VOUT COUT=2.2uF - MD85XX Series High Voltage Low Power Consumption LDO ■ Pin Configuration and Functions SOT23-5 Top View SOT23-5(A_Type) Top View SOT23-3 Top View VOUT NC NC NC VIN 5 4 5 4 3 85XXA 85XX 85XX 1 2 3 1 2 3 1 2 VIN GND EN GND VIN VOUT GND VOUT SOT89-3 Top View SOT89-3(A_Type) Top View 2 2 1 2 3 1 2 VOUT GND VIN GND VIN 3 VOUT VOUT 1 8 VIN NC 2 7 NC NC 3 6 NC EN 4 5 GND 85XX 85XXA 85XX ESOP8 Top View SOT223-3 Top View GND 2 85XX 1 2 VIN 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 Thermal pad The thermal pad is electrically connected to the GND node. Connect this pad to the GND plane for improved thermal performance. NC No internal connection 2 / 15 MD85XX Series High Voltage Low Power Consumption LDO ■ Product Selections Product Name VOUT (V) MD8530 MD8533 MD8536 MD8550 MD8530A MD8533A MD8536A MD8550A MD8530 MD8533 MD8536 MD8550 MD8530 MD8533 MD8536 MD8540 MD8550 MD8553 MD8557 MD8580 MD85C0 MD85F0 MD8530A MD8533A MD8536A MD8540A MD8550A MD8580A MD85C0A MD85F0A MD8533 MD8550 MD85C0 MD85F0 MD8533 MD8550 3.0 3.3 3.6 5.0 3.0 3.3 3.6 5.0 3.0 3.3 3.6 5.0 3.0 3.3 3.6 4.0 5.0 5.3 5.7 8.0 12.0 15.0 3.0 3.3 3.6 4.0 5.0 8.0 12.0 15.0 3.3 5.0 12.0 15.0 3.3 5.0 Package Ordering Name SOT23-5L SOT23-5L SOT23-5L SOT23-5L SOT23-5L SOT23-5L SOT23-5L SOT23-5L SOT23-3L SOT23-3L SOT23-3L SOT23-3L SOT89-3L SOT89-3L SOT89-3L SOT89-3L SOT89-3L SOT89-3L SOT89-3L SOT89-3L SOT89-3L SOT89-3L SOT89-3L SOT89-3L SOT89-3L SOT89-3L SOT89-3L SOT89-3L SOT89-3L SOT89-3L ESOP8 ESOP8 ESOP8 ESOP8 SOT223-3L SOT223-3L MD85E30QC3 MD85E33QC3 MD85E36QC3 MD85E50QC3 MD85A30QC3 MD85A33QC3 MD85A36QC3 MD85A50QC3 MD85E30QA3 MD85E33QA3 MD85E36QA3 MD85E50QA3 MD85E30PA1 MD85E33PA1 MD85E36PA1 MD85E40PA1 MD85E50PA1 MD85E53PA1 MD85E57PA1 MD85E80PA1 MD85EC0PA1 MD85EF0PA1 MD85A30PA1 MD85A33PA1 MD85A36PA1 MD85A40PA1 MD85A50PA1 MD85A80PA1 MD85AC0PA1 MD85EF0PA1 MD85E33SF4 MD85E50SF4 MD85EC0SF4 MD85EF0SF4 MD85E33YA2 MD85E50YA2 Marking 8530 8533 8536 8550 8530A 8533A 8536A 8550A 8530 8533 8536 8550 8530 8533 8536 8540 8550 8553 8557 8580 85C0 85F0 8530A 8533A 8536A 8540A 8550A 8580A 85C0A 85F0A 8533 8550 85C0 85F0 8533 8550 Package Information Tape and Reel, 3000pcs Tape and Reel, 3000pcs Tape and Reel, 1000pcs Tape and Reel, 1000pcs Tape and Reel, 4000pcs 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. 3 / 15 MD85XX Series High Voltage Low Power Consumption LDO ■ 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 Thermal Resistance PD RθJB (1) SOT23-5 250 SOT23-3 250 ESOP8 1800 SOT89-3 1000 SOT223-3 1500 SOT23-5 180 SOT23-3 200 ESOP8 80 SOT89-3 100 SOT223-3 66 Operating Ambient Temperature Topr -40 ~ +85 Storage Temperature Tstg -40 ~ +125 ESD Protection ESD HBM 5000 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 ■ Notes on Use Input Capacitor (CIN): 2.2µF above Output Capacitor (COUT): 2.2µF above 4 / 15 V mW ℃/W ℃ V MD85XX Series High Voltage Low Power Consumption LDO ■ Electrical Characteristics MD85XX Series (Unless otherwise indicated：Ta=25℃) PARAMETER Output Voltage*1 Dropout Voltage*2 SYMBOL VOUT(S) VDROP Line Regulation ΔVOUT ΔVIN • VOUT(s) Load Regulation VOUT2 Temperature Stability ΔVOUT Ta • VOUT(s) CONDITIONS TYP. MAX. UNIT VOUT(S) VOUT(S) 1.02 V VEN=VIN, VOUT(S)=3.3V IOUT=1mA 4 8 VEN=VIN, VOUT(S)=3.3V IOUT=300mA 1200 1800 VOUT(S)+2V≤VIN≤40V IOUT =1mA 0.01 0.02 VIN= VOUT(S)+2V，IOUT=1mA IGND VOUT(S) 0.98 mV VIN = VOUT(S)+2V VOUT(S)≤5.3V 20 40 1mA≤IOUT≤300mA VOUT(S)>5.3V 50 80 VIN = VOUT(S)+2V，IOUT=10mA ±50 -40℃≤Ta≤125℃ VOUT(S)5.3V 1.5 2.3 3.5 420 VIN=40.0V, VEN=0 0.1 Shutdown Current (EN=0) ISHUT Input Voltage VIN Maximum Output Current IOUTMAX Current Limit*3 ILIM VIN= VOUT(S)+2V, VOUT = 0.95 ×VOUT(S) Short Circuit Current ISHORT VIN=VEN=VOUT(S)+2.0V VOUT=0V 65 f=100Hz, IOUT =10mA 79 f=1kHz, IOUT =10mA 62 f=10kHz, IOUT =10mA 48 --- 2.2 350 350 550 PSRR EN ‘H’ Level Voltage VENH 1.5 40.0 EN ‘L’ Level Voltage VENL 0 0.6 EN ‘H’ Level Current IENH VIN=40V, VEN=VIN -0.1 0.1 EN ‘L’ Level Voltage IENL VIN=40V, VEN=0 -0.1 0.1 Over Temperature Protection OTP IOUT=1mA 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). 5 / 15 V mA Power Supply Rejection Ratio f=100kHz, IOUT =10mA uA 1 40 300 mV ppm/℃ 0.8 IOUT=100mA ％/V dB 40 170 V uA ℃ MD85XX Series High Voltage Low Power Consumption LDO ■ Typical Performance Characteristics Test Conditions: VIN=VOUT+2.0V, CIN=2.2μF, COUT=2.2μF, Ta=25℃, 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 Output Current at VOUT=3.3V Output Voltage vs Input Voltage at VOUT=3.3V Output Voltage vs Output Current at VOUT=3.3V 6 / 15 MD85XX 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. Dropout Voltage vs Temperature at VOUT=3.3V Output Current Fold-back 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=0mA~50mA) (IOUT=50mA~0mA) Ch1=VOUT Ch1=VOUT Ch4=IOUT Ch4=IOUT Load Transient at VOUT=3.3V: Load Transient at VOUT=3.3V: (IOUT=1mA~50mA~1mA) (IOUT=1mA~300mA~1mA) 7 / 15 MD85XX Series High Voltage Low Power Consumption LDO ■ Typical Performance Characteristics (Continued) Test Conditions: VIN=VOUT+2.0V, CIN=2.2μF, COUT=2.2μF, Ta=25℃, unless otherwise indicated. Ch1=VOUT Offset=5.3V Ch1=VOUT Offset=5.3V Ch2=VIN 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=300mA) Ch1=VOUT Ch1=VOUT Ch2=VIN Ch2=VIN Power-Down at VOUT=3.3V: Power-Down at VOUT=3.3V: (IOUT=1mA) (IOUT=300mA) 8 / 15 MD85XX Series High Voltage Low Power Consumption LDO ■ Typical Performance Characteristics (Continued) Test Conditions: VIN=VOUT+2.0V, CIN=2.2μF, COUT=2.2μF, Ta=25℃, unless otherwise indicated. Power Supply Rejection Ratio at VOUT=3.3V 9 / 15 MD85XX Series High Voltage Low Power Consumption LDO ■ 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 Fold-back Protection 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 MD85XX 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, short circuit protection and over temperature protection The MD85XX 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. The short circuit current is about 65mA (typical value). 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. 10 / 15 MD85XX Series High Voltage Low Power Consumption LDO ■ Packaging Information 11 / 15 MD85XX Series High Voltage Low Power Consumption LDO ■ Packaging Information (Continued) 12 / 15 MD85XX Series High Voltage Low Power Consumption LDO ■ Packaging Information (Continued) 13 / 15 MD85XX Series High Voltage Low Power Consumption LDO ■ Packaging Information (Continued) ESOP8 PACKAGE OUTLINE DIMENSIONS 14 / 15 MD85XX Series High Voltage Low Power Consumption LDO ■ Packaging Information (Continued) For the newest datasheet, please see the website: www.md-ic.com.cn Version V1.0: 20201215 15 / 15