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AiT Semiconductor Inc. www.ait-ic.com A6120 LOW DROPOUT VOL TAGE REGULATOR 2A LOW CONSUMPTION LINEAR REGULATOR REV2.2 - DEC 2013 RELEASED, JUL 2017 UPDATED - - 1 - DESCRIPTION FEATURES A6120 is a series of low power consumption, low dropout voltage regulator with a typical dropout voltage of 1.0V at 2A load current. A6120 can provide output value in the range of 1.2V~5.0V in 0.1V steps. It also can customized on command. Other than every voltage version can be used as an adjustable voltage version, with which desired voltage can be achieved by setting the values of two external resistors of the application circuitry. A6120 has well load transient response and good temperature characteristic, And it uses trimming technique to guarantee output voltage accuracy within±2%. The A6120 is available in SOT -223 and TO -252 Packages. Low Power Consumption:3.0uA (Typ.) Maximum output current : 2A Maximum input voltage: 18V Line regulation: 0.2% (Typical) Output Voltage Range:1.2V~5.0V (customized on command in 0.1V steps) Highly Accurate:±2%(±1% customized) Typical Dropout Voltage: 850mV@1.5A (VOUT=3.3V) Operation environment Temperature: -40°C~85°C Available in SOT-223 and TO-252 Packages APPLICATION Battery Charger Battery Powered equipment Post Regulators for Switching Supplies Reference Voltage Source R egulation after Switching Power ORDERING INFORMATION Package Type Part Number SOT-223 SPQ: 2,500pcs/Reel N A6120NR-XX A6120NVR-XX TO-252 SPQ: 2,500pcs/Reel D A6120DR-XX A6120DVR-XX Note X: Output Voltage 12=1.2V; 18=1.8V; 25=2.5V; 33=3.3V; 50=5.0V V: Halogen free Package R: Tape & Reel AiT provides all RoHS products TYPICAL APPLICATION Fig1. A6120 fixed voltage application circuit NOTE: Input capacitor (C IN=1uF) and Output capacitor (C OUT=1uF) are recommended in all application circuit. ceramic capacitor is recommended.
AiT Semiconductor Inc. www.ait-ic.com A6120 LOW DROPOUT VOL TAGE REGULATOR 2A LOW CONSUMPTION LINEAR REGULATOR REV2.2 - DEC 2013 RELEASED, JUL 2017 UPDATED - - 2 - PIN DESCRIPTION Top View Top View Pin # Symbol Function
1 VSS/ADJ VSS/ADJ Pin
2 VOUT Output Pin
3 VDD Input Pin
AiT Semiconductor Inc. www.ait-ic.com A6120 LOW DROPOUT VOL TAGE REGULATOR 2A LOW CONSUMPTION LINEAR REGULATOR REV2.2 - DEC 2013 RELEASED, JUL 2017 UPDATED - - 3 - ABSOLUTE MAXIMUM RATINGS Max Input Voltage 20V TJ, Operating Junction Temperature 125°C TA, Ambient Temperature -40°C~85°C Package Thermal Resistance SOT-223 20°C/W TO-252 12°C/W TS, Storage Temperature -40°C~150°C Lead Temperature & Time 260°C, 10 Sec Stress beyond above listed “Absolute Maximum Ratings” may lead permanent damage to the device. These are stress ratings only and operations of the device at these or any other conditions beyond those indicated in the operational sections of the specifications are not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. RECOMMENDED OPERATING CONDITIONS Parameter Value Input Voltage Range Max. 18V Ambient Temperature -40°C~85°C
AiT Semiconductor Inc. www.ait-ic.com A6120 LOW DROPOUT VOL TAGE REGULATOR 2A LOW CONSUMPTION LINEAR REGULATOR REV2.2 - DEC 2013 RELEASED, JUL 2017 UPDATED - - 4 -
ELECTRICAL CHARACTERISTICS
Test Conditions: CIN=1uF, COUT=1uF, TA=25°C, unless Otherwise Specified Parameter Symbol Test Condition Min. Typ. Max. Unit Input Voltage VDD - - 18 V Output Voltage VOUT VOUT x 0.98 VOUT VOUT x1.02 V Maximum Output Current IOUT (Max.) VIN-VOUT=1.9V VOUT<1.5V 2 - - A VIN--VOUT=1.5V 1.5V≤VOUT<2.0V VIN--VOUT=1V VOUT≥2.0V Input-Output Voltage Differential NOTE3 Dropout Voltage IOUT≤1.5A VOUT <1.5V - 1600 1800 mV 1.5V≤VOUT<2.0V - 1200 1400 VOUT≥2.0V - 850 950 Line Regulation NOTE1 ΔVOUT ΔVIN × VOUT IOUT=10mA Set VOUT+1V≤VIN≤18V - 0.1 0.3 %/V Load Regulation NOTE1,2 ΔVOUT 1mA≤IOUT≤1.5A VOUT <1.5V - 40 60 mV 1.5V≤VOUT<2.0V - 20 40 VOUT≥ 2.0V - 10 30 Quiescent Current Iq VIN-=Set VOUT+1V - 3.0 5.0 uA Output Voltage Temperature Coefficient ΔVOUT ΔT × VOUT IOUT=100mA - 200 - ppm/°C Thermal Resistance Junction to case θJC SOT-223 TO-252 - °C / W NOTE1: Line Regulation and Load Regulation in Table1 are tested under constant junction temperature. NOTE2: When load current varies between 0~2A and V IN-VOUT ranges from 1V~18V at constant junction temperature, the parameter is satisfied the criterion in table. NOTE3: Dropout Voltage is the voltage difference between the input and output pin when the input voltage is minimum to maintain the lowest spec output voltage.
AiT Semiconductor Inc. www.ait-ic.com A6120 LOW DROPOUT VOL TAGE REGULATOR 2A LOW CONSUMPTION LINEAR REGULATOR REV2.2 - DEC 2013 RELEASED, JUL 2017 UPDATED - - 5 - TYPICAL PERFORMANCE CHARACTERISTIC 1. Load Regulation (VOUT=1.2V) 2. Load Regulation (VOUT=3.3V) 3. Load Regulation (VOUT=5.0V) 4. Line Regulation 5. Dropout 6. Iq
AiT Semiconductor Inc. www.ait-ic.com A6120 LOW DROPOUT VOL TAGE REGULATOR 2A LOW CONSUMPTION LINEAR REGULATOR REV2.2 - DEC 2013 RELEASED, JUL 2017 UPDATED - - 6 - 7. Line Transient Response IOUT=100mA,VIN=3.3V to 4.3V (Orange: VIN, Green: VOUT) 8. Load Transient Response VIN=3.3V, IOUT=0.1A to 1A (Pink: IOUT, Green: VOUT)
AiT Semiconductor Inc. www.ait-ic.com A6120 LOW DROPOUT VOL TAGE REGULATOR 2A LOW CONSUMPTION LINEAR REGULATOR REV2.2 - DEC 2013 RELEASED, JUL 2017 UPDATED - - 7 - BLOCK DIAGRAM DETAILED INFORMATION A6120 is a series of low dropout voltage and low power consumption regulator. Its application circuitry requires minimum number of external components. Both fixed voltage and adjustable voltage application circuits need input and output capacitors to assure output voltage stability. Any desired output voltage from fixed voltage to 18V can be achieved by assigning proper values to two external resistors in its application circuitry (as shown in Fig.2, as R1, R2 are the two external resistors.). A6120 uses trimming technique to assure the accuracy of output value within ±2%, at the same time, temperature compensation is elaborately considered in this chip, which makes A6120’s temperature coefficient within 100ppm/℃
AiT Semiconductor Inc. www.ait-ic.com A6120 LOW DROPOUT VOL TAGE REGULATOR 2A LOW CONSUMPTION LINEAR REGULATOR REV2.2 - DEC 2013 RELEASED, JUL 2017 UPDATED - - 8 - TYPICAL APPLICATION A6120 has fixed voltage and adjustable voltage application mode. A 1μF ceramic capacitor connected between input and GND as bypass capacitor and a 1μF ceramic capacitor between output and GND are recommended for all application. Using a bypass capacitor ( CADJ) between the adjust terminal and ground can improve ripple rejection. The bypass capacitor prevents ripple from being amplified in case the output voltage is increased. The impedance of CADJ should be less than the resistance of R1 to prevent ripple from being amplified at any frequency. As R1 is normally in the range of 1kΩ~10kΩ, the value of CADJ should satisfy the following condition: 1/(2π* FrequencyRipple *CADJ)<R1 A 0.1μF ceramic capacitor is recommended. Fig 2. Typical Application of A6120 EXPLANATION The output voltage of adjustable application satisfies this followed equation: VOUT=VREF× (1+R2/R1)+IADJ×R2. The second term I ADJ×R2 can be ignored since the adjustable pin current I ADJ (~ 2μA) is much less than the current through R1 (~1mA). The value of R1 is preferred in the range of 1k Ω～10kΩ and the value of V REF is the output voltage of typical fixed voltage application circuit.
AiT Semiconductor Inc. www.ait-ic.com A6120 LOW DROPOUT VOL TAGE REGULATOR 2A LOW CONSUMPTION LINEAR REGULATOR REV2.2 - DEC 2013 RELEASED, JUL 2017 UPDATED - - 9 -
PACKAGE INFORMATION
Dimension in SOT-223 (Unit: mm)
AiT Semiconductor Inc. www.ait-ic.com A6120 LOW DROPOUT VOL TAGE REGULATOR 2A LOW CONSUMPTION LINEAR REGULATOR REV2.2 - DEC 2013 RELEASED, JUL 2017 UPDATED - - 10 - Dimension in TO-252 (Unit: mm) Symbol Min Max A 2.200 2.380 A1 0.000 0.100 A2 0.900 1.100 b 0.770 0.890 b1 0.760 0.860 b2 0.770 1.100 b3 5.230 5.430 c 0.470 0.600 c1 0.460 0.560 c2 0.470 0.600 D 6.000 6.200 D1 5.250 - E 6.500 6.700 E1 4.700 - e 2.280(BSC) H 9.800 10.40 L 1.400 1.700 L1 2.900(REF) L2 0.510(BSC) L3 0.900 1.250 L5 0.900 1.500 L6 1.800(REF) θ 0° 8° θ1 3° 7° θ2 1° 5°
AiT Semiconductor Inc. www.ait-ic.com A6120 LOW DROPOUT VOL TAGE REGULATOR 2A LOW CONSUMPTION LINEAR REGULATOR REV2.2 - DEC 2013 RELEASED, JUL 2017 UPDATED - - 11 - IMPORTANT NOTICE AiT Semiconductor Inc. (AiT) reserves the right to make changes to any its product, specifications, to discontinue any integrated circuit product or service without notice, and advises its customers to obtain the latest version of relevant information to verify, before placing orders, that the information being relied on is current. AiT Semiconductor Inc. 's integrated circuit products are not designed, intended, authorized, or war ranted to be suitable for use in life support applications, devices or systems or other critical applications. Use of AiT products in such applications is understood to be fully at the risk of the customer. As used herein may involve potential risks of dea th, personal injury, or server property, or environmental damage. In order to minimize risks associated with the customer's applications, the customer should provide adequate design and operating safeguards. AiT Semiconductor Inc . assumes to no liability to customer product design or application support. AiT warrants the performance of its products of the specifications applicable at the time of sale.