MET1117A50B3G

MET1117 700mA Adjustable Voltage High Speed LDO Regulators MET1117 Series General Description Features The MET1117 series are highly accurate, low noise,    Output Current in Excess of 700mA Dropout Voltage：1.08V@ IOUT =100mA Operating Voltage Range： 4.8V～20V（MET1117A33） 700mA. This series contains six fixed output voltages of 1.2 V, 1.8 V, 2.5 V, 3.3 V, and 5.0 V that have no minimum load requirement to maintain regulation.  Highly Accuracy： ±2％   Adjustable Output Voltage Option Standby Current：3.5mA（TPY.） Also included is an adjustable output version that can be programmed from 1.25 V to 20 V with two external resistors. On chip trimming adjusts the   High Ripple Rejection：60dB@1KHz （MET1117A33） Line Regulation: 2mV（TYP.） reference/output voltage to within ±2.0% accuracy. Internal protection features consist of output current limiting, safe operating area compensation, and    Temperature Stability≤0.5% Current Limit（850mA） Thermal Shutdown Protection（160℃） thermal shutdown. The MET1117 series can operate with up to 20 V input. Devices are available in SOT223，TO252-2L .  Small Packages:SOT223、TO252-2L LDO Voltage Regulators that are capable of providing an output current that is in excess of 700mA with a maximum dropout voltage of 1.5 V at Typical Application Selection Guide  Consumer and Industrial Equipment Point of   Regulation Switching Power Supply Post Regulation Hard Drive Controllers  Battery Chargers Typical Application Circuit V05 www.microne.com.cn Page 1 of 14 MET1117 Pin Configuration SOT223 TO252-2L Pin Assignment MET1117AXX Pin Number Pin Name Functions 1 VSS Ground 2 VOUT Output 3 VIN Power Input Pin Number Pin Name Functions 1 ADJ Adjustable Output 2 VOUT Output 3 VIN Power Input MET1117F Absolute Maximum Ratings Parameter Symbol Ratings Units Input Voltage VIN 20 V Output Current IOUT 850 mA Output Voltage VOUT Vss-0.3～VIN +0.3 V 750 mW 2000 mW Power Dissipation SOT223 TO252-2L PD Operating Temperature Range T OPR －40～＋125 ℃ Storage Temperature Range T STG －40～＋150 ℃ Junction Temperature Range TJ 0～＋150 ℃ Lead Temperature Thermal Resistance Junction-to-Case Thermal Resistance Junction-to-Ambient (No heat sink; No air flow) V05 SOT223 260℃，4sec TO252-2L 260℃，10sec SOT223 15 °C/W TO252-2L 10 °C/W SOT223 136 °C/W TO252-2L 92 °C/W www.microne.com.cn Page 2 of 14 MET1117 Block Diagram Electrical Characteristics MET1117F (VIN= VOUT+1.5V，CIN=COUT=10uF，Ta=25OC ,unless otherwise noted) Parameter Symbol Conditions VIN= VOUT+1.5V，IOUT =10mA Reference Voltage VREF 10mA≤IOUT≤700mA VOUT+1.5V ≤VIN≤20V IOUT=800mA ，VIN= VOUT+1.7V Maximum Output Current Maximum Output Current Minimum Output Current Max. ×0.98 1.25 ×1.02 ×0.98 1.25 ×1.02 ×0.98 1.25 ×1.02 Units V V VIN= VOUT+1.5V 700 mA IOUTMAX VIN= VOUT+1.7V 800 mA IOUTMIN VIN= VOUT+1.5V 2 mA ∆ VREF-LINE Load Regulation ∆VREF-LOAD Adjustment Pin Current IADJ IOUT =10mA VOUT+1.5V ≤VIN≤20V VIN=VOUT+1.5V 0mA≤IOUT≤700mA VIN= VOUT+1.5V 10mA≤ IOUT≤ 700mA Adjust Pin Current 1.5V ≤ VIN-VOUT ≤ 20V Change Thermal Shutdown V05 Typ. IOUTMAX Line Regulation Current Limit Min. ILIMIT 2 6 mV 9 15 mV 11 30 uA 0.2 5 uA Junction Temperature 160 ℃ VIN= VOUT+1.7V 850 mA www.microne.com.cn Page 3 of 14 MET1117 MET1117A12 (VIN= VOUT+1.5V，CIN=COUT=10uF，Ta=25OC, unless otherwise noted) Parameter Symbol Conditions IOUT=10mA,VIN= VOUT+1.5V Output Voltage VOUT 10mA≤IOUT≤700mA VOUT+1.5V ≤VIN≤15V IOUT=800mA ，VIN= VOUT+1.7V Maximum Output Current Maximum Output Current Load Regulation Min. Typ. Max. Units ×0.98 ×0.98 1.2 1.2 ×1.02 ×1.02 V ×0.98 1.2 ×1.02 V IOUTMAX VIN= VOUT+1.5V 700 mA IOUTMAX VIN= VOUT+1.7V 800 mA ∆VOUT-LOAD VIN=VOUT+1.5V , 0mA≤IOUT≤700mA 9 15 mV VDIF1 IOUT =100mA 1.08 1.10 V Dropout Voltage VDIF2 IOUT =500mA 1.20 1.30 V (Note 1) VDIF3 IOUT =700mA 1.45 1.50 V VDIF4 IOUT =800mA 1.65 1.70 V VIN= VOUT+1.5V 3.5 10 mA 2 6 mV Quiescent Current ISS Line Regulation ∆VOUT-LINE Ripple Rejection Rate PSRR Thermal Shutdown Current Limit IOUT =10mA VOUT+1.5V ≤VIN≤20V VIN = 12V +1Vp-pAC IOUT=10mA,1kHZ 65 IOUT=100mA,1kHZ 60 Junction Temperature ILIMIT VIN= VOUT+1.7V dB 160 ℃ 850 mA MET1117A18 (VIN= VOUT+1.5V，CIN=COUT=10uF，Ta=25OC, unless otherwise noted) Parameter Symbol Conditions IOUT=10mA,VIN= VOUT+1.5V Output Voltage VOUT 10mA≤IOUT≤700mA VOUT+1.5V ≤VIN≤15V IOUT=800mA ，VIN= VOUT+1.7V Maximum Output Current Maximum Output Current Typ. Max. Units ×0.98 ×0.98 1.8 1.8 ×1.02 ×1.02 V ×0.98 1.8 ×1.02 V IOUTMAX VIN= VOUT+1.5V 700 mA IOUTMAX VIN= VOUT+1.7V 800 mA Load Regulation ∆VOUT-LOAD Dropout Voltage VDIF1 (Note 1) VDIF2 V05 Min. VIN=VOUT+1.5V , 12 18 mV IOUT =100mA 1.08 1.10 V IOUT =500mA 1.20 1.30 V 0mA≤IOUT≤700mA www.microne.com.cn Page 4 of 14 MET1117 VDIF3 IOUT =700mA 1.45 1.50 V VDIF4 IOUT =800mA 1.65 1.70 V VIN= VOUT+1.5V 3.5 10 mA IOUT =10mA VOUT+1.5V ≤VIN≤20V 2 6 mV VIN = 12V IOUT=10mA,1kHZ 65 +1Vp-pAC IOUT=100mA,1kHZ 60 Quiescent Current ISS Line Regulation ∆VOUT-LINE Ripple Rejection Rate PSRR Thermal Shutdown Current Limit Junction Temperature ILIMIT VIN= VOUT+1.7V dB 160 ℃ 850 mA MET1117A25 (VIN= VOUT+1.5V，CIN=COUT=10uF，Ta=25OC, unless otherwise noted) Parameter Output Voltage Symbol VOUT Conditions IOUT=10mA,VIN= VOUT+1.5V 10mA≤IOUT≤700mA VOUT+1.5V ≤VIN≤15V IOUT=800mA ，VIN= VOUT+1.7V Min. Typ. Max. ×0.98 2.5 ×1.02 ×0.98 2.5 ×1.02 ×0.98 2.5 ×1.02 Units V V Maximum Output Current IOUTMAX VIN= VOUT+1.5V 700 mA Maximum Output Current IOUTMAX VIN= VOUT+1.7V 800 mA Load Regulation ∆VOUT-LOAD Dropout Voltage (Note 1) 15 25 mV IOUT =100mA 1.08 1.10 V VDIF2 IOUT =500mA 1.20 1.30 V VDIF3 IOUT =700mA 1.45 1.50 V VDIF4 IOUT =800mA 1.65 1.70 V VIN= VOUT+1.5V 3.5 10 mA 2 6 mV ISS Line Regulation ∆VOUT-LINE Ripple Rejection Rate PSRR Thermal Shutdown V05 , VDIF1 Quiescent Current Current Limit VIN=VOUT+1.5V 0mA≤IOUT≤700mA IOUT =10mA VOUT+1.5V ≤VIN≤20V VIN = 12V +1Vp-pAC IOUT=10mA,1kHZ 65 IOUT=100mA,1kHZ 60 Junction Temperature ILIMIT VIN= VOUT+1.7V www.microne.com.cn dB 160 ℃ 850 mA Page 5 of 14 MET1117 MET1117A33 (VIN= VOUT+1.5V，CIN=COUT=10uF，Ta=25OC, unless otherwise noted) Parameter Symbol Conditions IOUT=10mA,VIN= VOUT+1.5V Output Voltage VOUT 10mA≤IOUT≤700mA VOUT+1.5V ≤VIN≤15V IOUT=800mA ，VIN= VOUT+1.7V Maximum Output Current Maximum Output Current Load Regulation Min. Typ. Max. Units ×0.98 ×0.98 3.3 3.3 ×1.02 ×1.02 V ×0.98 3.3 ×1.02 V IOUTMAX VIN= VOUT+1.5V 700 mA IOUTMAX VIN= VOUT+1.7V 800 mA ∆VOUT-LOAD VIN=VOUT+1.5V , 0mA≤IOUT≤700mA 20 30 mV VDIF1 IOUT =100mA 1.08 1.10 V Dropout Voltage VDIF2 IOUT =500mA 1.20 1.30 V (Note 1) VDIF3 IOUT =700mA 1.45 1.50 V VDIF4 IOUT =800mA 1.65 1.70 V VIN= VOUT+1.5V 3.5 10 mA 2 6 mV Quiescent Current ISS Line Regulation ∆VOUT-LINE Ripple Rejection Rate PSRR Thermal Shutdown Current Limit IOUT =10mA VOUT+1.5V ≤VIN≤20V VIN = 12V +1Vp-pAC IOUT=10mA,1kHZ 65 IOUT=100mA,1kHZ 60 Junction Temperature ILIMIT VIN= VOUT+1.7V dB 160 ℃ 850 mA MET1117A50 (VIN= VOUT+1.5V，CIN=COUT=10uF，Ta=25OC, unless otherwise noted) Parameter Output Voltage Symbol VOUT Conditions IOUT=10mA,VIN= VOUT+1.5V 10mA≤IOUT≤700mA VOUT+1.5V ≤VIN≤15V IOUT=800mA ，VIN= VOUT+1.7V Maximum Output Min. Typ. Max. ×0.98 5.0 ×1.02 ×0.98 5.0 ×1.02 ×0.98 5.0 ×1.02 Units V V IOUTMAX VIN= VOUT+1.5V 700 mA Maximum Output Current IOUTMAX VIN= VOUT+1.7V 800 mA Load Regulation ∆VOUT-LOAD Dropout Voltage VDIF1 Current V05 VIN=VOUT+1.5V 0mA≤IOUT≤700mA IOUT =100mA www.microne.com.cn 35 50 mV 1.08 1.10 V Page 6 of 14 MET1117 (Note 1) VDIF2 IOUT =500mA 1.20 1.30 V VDIF3 IOUT =700mA 1.45 1.50 V VDIF4 IOUT =800mA 1.65 1.70 V VIN= VOUT+1.5V 3.5 10 mA 2 6 mV Quiescent Current ISS Line Regulation ∆VOUT-LINE Ripple Rejection Rate PSRR Thermal Shutdown Current Limit IOUT =10mA VOUT+1.5V ≤VIN≤20V VIN = 12V +1Vp-pAC IOUT=10mA,1kHZ 65 IOUT=100mA,1kHZ 60 Junction Temperature ILIMIT VIN= VOUT+1.7V dB 160 ℃ 840 mA Note ： 1 .VDIF：VIN1 –VOUT (E)’ VIN1 ：The input voltage when VOUT(E)’ appears as input voltage is gradually decreased. VOUT (E)’=A voltage equal to 99% of the output voltage whenever an amply stabilized Iout and {VOUT (T)+1.5V} is input. When output current is 800mA , {VOUT (T)+1.7V} is input. V05 www.microne.com.cn Page 7 of 14 MET1117 Type Characteristics （1） Output Voltage VS. Output Current （VIN=VOUT+1.5V） （2） Output Voltage VS. Input Voltage （VOUT=3.3V , IOUT=10mA） MET1117A33 MET1117A33 Output Voltage VS.Input Voltage(Vout=3.3V,Iout=10mA) Output Voltage VS.Output Current Output Voltage(V) Output Voltage(V) 3.360 3.340 3.320 3.300 3.280 3.260 3.240 3.220 3.200 T=25℃ T=75℃ 3.330 3.300 3.270 T=25℃ 3.240 T=75℃ 3.210 3.180 0 100 200 300 400 500 600 700 4 6 8 10 Output Current (mA) 14 16 18 20 Input Voltage(V) （3） Dropout Voltage VS. Output Current （4）Load Regulation VS.Temp(IOUT from 10mA to700mA) MET1117A33 MET1117A33 Dropout Voltage VS.Output Current Load Regulation VS.Temp(Iout from 10mA to 700mA) 1.8 △ Vout/Vout*100% 1.00 1.6 Dropout Voltage(V) 12 1.4 1.2 1 0.8 T=25℃ 0.6 T=75℃ 0.50 0.00 -0.50 -1.00 0.4 0 100 200 300 400 500 600 -40 700 -25 0 50 75 100 125 Temperature(℃) Output Current(mA) （5）Output Voltage VS. Temperature MET1117A33 25 （6）Output Voltage Change VS. Temperature ( IOUT=10mA ) MET1117A33 ( IOUT=10mA ) Output Voltage (Vout=3.3V)VS. Temperature Output Voltage VS.Temperature 1.00 3.30 △ Vout/Vout*100% Output Voltage(V) 3.40 3.20 3.10 3.00 2.90 0.50 0.00 -0.50 -1.00 -1.50 -2.00 -2.50 2.80 -40 -25 0 25 50 75 100 125 150 -25 0 25 50 75 100 125 Temperature(℃) Temperature(℃) V05 -40 www.microne.com.cn Page 8 of 14 MET1117 （7）Adj Pin Current VS. Temperature （8）Ripple Rejection vs. Frequency MET1117F MET1117A33 Ripple Rejection VS. Frequency Adj Pin Current VS.Temperature Ripple Rejection (dB) Adj Pin Current(uA) 20 16 12 8 4 70 60 50 40 30 20 0 -40 -25 0 25 50 75 100 125 150 10 Temperature(℃) 1000 10000 100000 Frequency(Hz) （9）Line Transient Response MET1117A33 （10）Load Transient Response MET1117A33 Ch1：Output Voltage Ch3：Input Voltage VIN=8V～12V,IOUT=0mA,Ta = 25 °C V05 100 Ch1：Output Voltage Ch2：Load Current VIN=4.8V, IOUT=0mA ～240mA,Ta = 25 °C www.microne.com.cn Page 9 of 14 MET1117 Applications Information  Introduction stability and transient response with the additional The MET1117 features a significant reduction in dropout voltage along with enhanced output voltage accuracy and temperature stability when compared to benefit of reducing output noise. The output ripple will increase linearly for fixed and adjustable devices as the ratio of output voltage to the reference voltage older industry standard three−terminal adjustable regulators.  Output Voltage increases.  Protection Diodes The MET1117 has two internal low impedance diode The typical application circuit for adjustable output regulator is shown in following Figure. They develop and maintain the nominal 1.25 V reference voltage paths that normally do not require protection when between the output and adjust pins. The reference voltage is programmed to a constant current source by resistor R1, and this current flows through R2 to used in the typical regulator applications. The first path connects between VOUT and VIN , and it can withstand a peak surge current of about 15 A. Only when VIN is shorted to ground and C OUT is greater ground to set the output voltage. The programmed current level is usually selected to be greater than the specified 3.0mA minimum that is required for than 100uF, it becomes possible for device damage regulation. Since the adjust pin current, IADJ, is significantly lower and constant with respect to the programmed load current, it generates a small output connects between CADJ and VOUT, and it can to occur. Under these conditions, diode D1 is required to protect the device. The second path withstand a peak surge current of about 150mA. Protection diode D2 is required if the output is voltage error that can usually be ignored. shorted to ground and CADJ is greater than 10uF.  Thermal Considerations This series contains an internal thermal limiting  External Capacitors Input bypass capacitor CIN may be required for regulator stability. This capacitor will reduce the circuit’s sensitivity when powered from a complex source. A 10uF ceramic or tantalum capacitor should be adequate for most applications. Frequency circuit that is designed to protect the regulator in the event that the maximum junction temperature is exceeded. When activated, typically at 175°C, the regulator output switches off and then back on as the die cools. compensation for the regulator is provided by capacitor COUT and its use is mandatory to ensure output stability. A minimum capacitance value of 4.7uF with an equivalent series resistance (ESR) that is within the limits of 0.25 ohm to 2.2 ohm is required. Higher values of output capacitance can be used to enhance loop V05 www.microne.com.cn Page 10 of 14 MET1117 Other Application Circuit （1） Constant Current Regulator （2）Slow Turn−On Regulator （3）Regulator with Shutdown （4）Digitally Controlled Regulator Resistor R2 sets the maximum output voltage. Each transistor reduces the output voltage when turned on. （5）Battery Backed−Up Power Supply （6）Adjusting Output of Fixed Voltage Regulators The 50 ohm resistor that is in series with the ground pin of the upper regulator level shifts its output 300 mV higher than the lower regulator. This keeps the lower regulator off until the input source is removed. V05 www.microne.com.cn Page 11 of 14 MET1117 Packaging Information ● SOT223 V05 www.microne.com.cn Page 12 of 14 MET1117 ● TO252-2L V05 www.microne.com.cn Page 13 of 14 MET1117  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. V05 www.microne.com.cn Page 14 of 14