A6115 AITSEMI | Alldatasheet
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AiT Semiconductor Inc. www.ait-ic.com A6115 LOW DROPOUT VOL TAGE REGULATOR 1.5A LINEAR REGULATOR REV2.2 - DEC2008 RELEASED, MAR 2019 UPDATED - - 1 - DESCRIPTION FEATURES A6115 series are a group of positive voltage output, high precise, and low power consumption voltage regulator. Voltages are selectable in 100mV steps within a range of 1.2V to 5.0V. It also can be customized on command. A6115 series have excellent load and line transient response and good temperature characteristics, which can assure the stability of chip and power system. And it uses trimming technique to guarantee output voltage accuracy within ±2%. The A6115 is available in SOT-223 package. Low Quiescent Current: 100uA at 5V High PSRR: 70dB range to 1kHz Low Output Noise: 44uVRMS Low Dropout: 300mV at 1A load Maximum output current: 1.5A Highly Accurate: ±2% Low ESR Ceramic Capacitor Compatible Available in SOT-223 package APPLICATION Reference Voltage Source Battery Powered Equipment PC Peripherals Wireless Devices Instrumentation
ORDERING INFORMATION
SPQ: 2,500pcs/Reel N A6115NR-XXZ A6115NVR-XXZ Note XX: Output Voltage 25=2.5V, 33=3.3V Z: Pin Define See Pin Description R: Tape & Reel V: Halogen free Package Suffix “ V “ means Halogen free Package TYPICAL APPLICATION
AiT Semiconductor Inc. www.ait-ic.com A6115 LOW DROPOUT VOL TAGE REGULATOR 1.5A LINEAR REGULATOR REV2.2 - DEC2008 RELEASED, MAR 2019 UPDATED - - 2 - PIN DESCRIPTION Top View Top View Pin # Symbol Function A6115-A A6115-B 1 3 VDD Supply Voltage Input 2 1 GND Ground Pin 3 2 VOUT Output Voltage
AiT Semiconductor Inc. www.ait-ic.com A6115 LOW DROPOUT VOL TAGE REGULATOR 1.5A LINEAR REGULATOR REV2.2 - DEC2008 RELEASED, MAR 2019 UPDATED - - 3 - ABSOLUTE MAXIMUM RATINGS Max Input Voltage 8V TJ, Max Operating Junction Temperature 145°C TA, Ambient Temperature -40°C~85°C Package Thermal Resistance SOT-223 20°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 Symbol Value Input Voltage Range Max. 6V Ambient Temperature -40°C~85°C Operating Junction Temperature TJ 125°C
AiT Semiconductor Inc. www.ait-ic.com A6115 LOW DROPOUT VOL TAGE REGULATOR 1.5A LINEAR REGULATOR REV2.2 - DEC2008 RELEASED, MAR 2019 UPDATED - - 4 -
ELECTRICAL CHARACTERISTICS
Test Conditions: CIN=4.7uF,COUT=4.7uF,TA=25°C, unless otherwise specified. Parameter Symbol Test Condition Min. Typ. Max. Unit Input Voltage VDD 1.5* - 6 V Output Voltage VOUT VOUT>1.5 VDD=Set VOUT+1V 1mA≤IOUT≤10mA VOUT x 0.98 VOUT VOUT x1.02 V VOUT<=1.5 VOUT - 0.03 VOUT + 0.03 Maximum Output Current IOUT (Max.)** VDD-VOUT=1V 1.5 - - A Dropout Voltage VDROP VOUT =3.3V, IOUT=1A - 300 500 mV Line Regulation ΔVOUT ΔVIN × VOUT IOUT=10mA 4V≤VDD≤6V - 0.05 0.2 %/V Load Regulation VOUT VDD=Set VOUT+1V 1mA≤IOUT≤2.5A - 30 60 mV Supply Current Is VDD=Set VOUT+1V VOUT Floating - 100 150 uA Output Voltage Temperature Coefficient ΔVOUT ΔT × VOUT IOUT=10mA - ±100 - ppm/°C Ripple Rejection PSRR f=100Hz, Ripple=0.5Vp-p, VDD=Set VOUT+1V - 70 - dB Output Noise en BW=10Hz~100kHz - 44 - uVrms NOTE: *IOUT=500mA@VOUT=1.2V **The maximum power rating of each package is a constant, so along with the change of ILOAD, the VDD-VOUT should be controlled to a certain range to ensure the normal operation.
AiT Semiconductor Inc. www.ait-ic.com A6115 LOW DROPOUT VOL TAGE REGULATOR 1.5A LINEAR REGULATOR REV2.2 - DEC2008 RELEASED, MAR 2019 UPDATED - - 5 - TYPICAL PERFORMANCE CHARACTERISTIC 1. Load Regulation (VOUT=3.3V) 2. Load Regulation (VOUT=1.2V) 3. Line Regulation 4. Iq 5. Dropout Voltage 6. VOUT vs. Temperature
AiT Semiconductor Inc. www.ait-ic.com A6115 LOW DROPOUT VOL TAGE REGULATOR 1.5A LINEAR REGULATOR REV2.2 - DEC2008 RELEASED, MAR 2019 UPDATED - - 6 - 7. Load Transient Response (VIN=5V,VOUT=3.3V) CIN=1uF,COUT=1uF,IOUT=1mA-100mA 8. Line Transient Response(VIN=5V,VOUT=3.3V) CIN=1uF,COUT=1uF,IOUT=10mA,VIN=4.3V-5.3V BLOCK DIAGRAM
AiT Semiconductor Inc. www.ait-ic.com A6115 LOW DROPOUT VOL TAGE REGULATOR 1.5A LINEAR REGULATOR REV2.2 - DEC2008 RELEASED, MAR 2019 UPDATED - - 7 - THERMAL CONSIDERATIONS We have to take heat dissipation into great consideration when output current or differential voltage of input and output voltage is large. Because in such cases, the power dissipation consumed by A6115 is very large. A6115 series uses SOT-223 package type and its thermal resistance is about 20°C/W. And the copper area of application board can affect the total thermal resistance. If copper area is 5cm*5cm (two sides), the resistance is about 30°C/W. So the total thermal resistance is about 20°C/W + 30°C/W. In this case, the power dissipation should be limited less than 1.2W. We can decrease total thermal resistance by increasing copper area in application board. When there is no good heat dissipation copper area in PCB, the total thermal resistance will be as high as 120°C/W, then the power dissipation of A6115 could allow on itself is less than 1W. And furthermore, if the A6115 chip did work at junction temperature higher than 125°C under such condition and no lifetime is guaranteed. CURRENT LIMIT MODE Current Limit module can keep chip and power system away from danger when load current is too large. When Vout decrease the Short Circuit Current will fold back to a small value.
AiT Semiconductor Inc. www.ait-ic.com A6115 LOW DROPOUT VOL TAGE REGULATOR 1.5A LINEAR REGULATOR REV2.2 - DEC2008 RELEASED, MAR 2019 UPDATED - - 8 -
PACKAGE INFORMATION
Dimension in SOT-223 (Unit: mm) Symbol Min Max A - 1.80 A1 0.02 0.10 A2 1.50 1.70 A3 0.80 1.00 b 0.67 0.80 b1 0.66 0.76 b2 2.96 3.09 b3 2.95 3.05 c 0.30 0.35 c1 0.29 0.31 D 6.48 6.58 D1 6.55 6.65 D2 - 7.05 E 6.80 7.20 E1 3.40 3.60 E2 3.33 3.53 e 2.30 (BSC) e1 4.60 (BSC) L 0.80 1.20 L1 1.750(REF) L2 0.250(BSC) R 0.10 - R1 0.10 - θ 0° 8° θ1 10° 14°
AiT Semiconductor Inc. www.ait-ic.com A6115 LOW DROPOUT VOL TAGE REGULATOR 1.5A LINEAR REGULATOR REV2.2 - DEC2008 RELEASED, MAR 2019 UPDATED - - 9 - 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 warranted to be suitable for use in lif e 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 de ath, 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.