A6518 AITSEMI | Alldatasheet
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Technical content
AiT Semiconductor Inc. www.ait-ic.com A6518 CMOS LOW DROPOUT REGULATOR (LDO) 500mA ADJUSTABLE, ULTRA-LOW NOISE, ULTRA-FAST REV1.3 - JAN 2021 RELEASED, JUN 2021 UPDATED - - 1 - DESCRIPTION FEATURES A6518 is a positive voltage adjustable output, low power consumption, low dropout voltage regulator. A6518 can provide output value adjustable from 0.8V to 5.0V. A6518 includes high accuracy voltage reference, error amplifier, current limit circuit and output driver module with discharge capability. A6518 has excellent load and line transient response and good temperature characteristics, which can assure the stability of chip and power system. And it also provides foldback short-circuit protection, thermal protection and output current limit function. The A6518 is available in SOT-25 package.
ORDERING INFORMATION
SPQ: 3,000pcs/Reel A6518E5R-ADJ A6518E5VR-ADJ Note V: Halogen free Package R: Tape & Reel AiT provides all RoHS products ⚫ Low Power Consumption: 30μA (Typ.) ⚫ Maximum output current: 500mA ⚫ Low dropout Voltage: 450mV@IOUT=500mA, VOUT=3.3V ⚫ Input voltage range: 1.7 to 7.5V ⚫ Adjustable Output from 0.8V to 5.0V ⚫ Output current limit: 800mA (Typ.) ⚫ Available in SOT-25 package APPLICATION ⚫ Power source for cellular phones and various kind of PCSs ⚫ Battery Powered equipment ⚫ Power Management of MP3, PDA, DSC, Mouse, PS2 Games ⚫ Reference Voltage Source ⚫ Regulation after Switching Power TYPICAL APPLICATION NOTE: 1) Input capacitor (CIN=1uF) and Output capacitor (COUT=1uF) are recommended in all application circuit. 2) VOUT=VFB*(1+ R2 ), VFB=0.8V
AiT Semiconductor Inc. www.ait-ic.com A6518 CMOS LOW DROPOUT REGULATOR (LDO) 500mA ADJUSTABLE, ULTRA-LOW NOISE, ULTRA-FAST REV1.3 - JAN 2021 RELEASED, JUN 2021 UPDATED - - 2 - PIN DESCRIPTION Top View Pin # Symbol Function 1 VIN Supply Voltage Input. Supply voltage can range from 1.7V to 7.5V.
2 GND Ground Pin
Enable Pin. A logic low reduces the supply current to 10μA. Connect to IN for normal operation. 4 FB Feedback Pin. This is used to set the output voltage of the device.
5 VOUT Output Voltage
AiT Semiconductor Inc. www.ait-ic.com A6518 CMOS LOW DROPOUT REGULATOR (LDO) 500mA ADJUSTABLE, ULTRA-LOW NOISE, ULTRA-FAST REV1.3 - JAN 2021 RELEASED, JUN 2021 UPDATED - - 3 - ABSOLUTE MAXIMUM RATINGS Max Input Voltage 8V TJ, Operating Junction Temperature 150°C TA, Ambient Temperature -40°C~85°C Power Dissipation SOT-25 400mW TS, Storage Temperature -40°C~150°C Lead Temperature & Time 260°C,10s 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 WORK CONDITIONS Parameter Value Input Voltage Range 1.7V to 7.5V Ambient Temperature -40°C to 85°C
AiT Semiconductor Inc. www.ait-ic.com A6518 CMOS LOW DROPOUT REGULATOR (LDO) 500mA ADJUSTABLE, ULTRA-LOW NOISE, ULTRA-FAST REV1.3 - JAN 2021 RELEASED, JUN 2021 UPDATED - - 4 -
ELECTRICAL CHARACTERISTICS
Test Conditions: CIN=1uF, COUT=1uF, TA=25℃, unless otherwise specified. Parameter Symbol Conditions Min. Typ. Max. Unit Input Voltage VIN 1.7 - 7.5 V Regulated Feedback Voltage VFB IOUT=0.1mA 0.79 0.81 0.83 V Dropout Voltage VDROP* VOUT=1.2V, IOUT=500mA - 900 - mV VOUT=1.5V, IOUT=500mA - 630 - VOUT=3.3V, IOUT=500mA - 450 - Line Regulation ΔVLNR VIN = (VOUT + 0.5V) to 5.5V, IOUT = 1mA - 0.1 0.2 %/V Load Regulation ΔVLOAD IOUT=0.1mA to 500mA COUT=1μF - 0.5 10 mV Supply Current IQ No load - 30 40 μA Supply Current ISTANDBY VIN=VOUT+1V, VEN=GND - 0.1 1.0 μA Output Voltage Temperature Coefficient ΔVOUT ΔT × VOUT ILOAD = 0.1mA - 35 - ppm/°C EN Input Voltage “H” VENH VIN=5V 1.8 - - V EN Input Voltage “L” VENL VIN=5V - - 0.6 V Ripple Rejection PSRR f=1kHz - 70 - dB Current Limit ILIM VIN=4.3V, VOUT=3.3V 500 800 - mA Thermal Shutdown Temp TSD - 150 - °C Thermal Shutdown Hysteresis TSH - 15 - °C
AiT Semiconductor Inc. www.ait-ic.com A6518 CMOS LOW DROPOUT REGULATOR (LDO) 500mA ADJUSTABLE, ULTRA-LOW NOISE, ULTRA-FAST REV1.3 - JAN 2021 RELEASED, JUN 2021 UPDATED - - 5 - TYPICAL PERFORMANCE CHARACTERISTICS VIN = VOUT (NOMINAL) + 0.5V, VOUT=3.3V, CIN = 1μF, COUT = 1μF, TA = +25℃, unless otherwise noted. 1. Turn On Speed With EN Pin 2. Turn Off Speed With EN Pin 3. Line Transient Response 4. Shutdown 5. Load Transient Response 6. Load Transient Response
AiT Semiconductor Inc. www.ait-ic.com A6518 CMOS LOW DROPOUT REGULATOR (LDO) 500mA ADJUSTABLE, ULTRA-LOW NOISE, ULTRA-FAST REV1.3 - JAN 2021 RELEASED, JUN 2021 UPDATED - - 6 - 7. Current Limit vs. Temperature 8. Output Voltage vs. Input Voltage 9. Output Voltage Accuracy vs. Temperature 10. Ground Current vs. Temperature 11. Ground Current vs. Load Current
AiT Semiconductor Inc. www.ait-ic.com A6518 CMOS LOW DROPOUT REGULATOR (LDO) 500mA ADJUSTABLE, ULTRA-LOW NOISE, ULTRA-FAST REV1.3 - JAN 2021 RELEASED, JUN 2021 UPDATED - - 7 - BLOCK DIAGRAM
AiT Semiconductor Inc. www.ait-ic.com A6518 CMOS LOW DROPOUT REGULATOR (LDO) 500mA ADJUSTABLE, ULTRA-LOW NOISE, ULTRA-FAST REV1.3 - JAN 2021 RELEASED, JUN 2021 UPDATED - - 8 -
PACKAGE INFORMATION
Dimension in SOT-25 (Unit: mm)
AiT Semiconductor Inc. www.ait-ic.com A6518 CMOS LOW DROPOUT REGULATOR (LDO) 500mA ADJUSTABLE, ULTRA-LOW NOISE, ULTRA-FAST REV1.3 - JAN 2021 RELEASED, JUN 2021 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 life support applications, devices or systems or other critical ap plications. 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 e 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.