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AiT Semiconductor Inc. www.ait-ic.com A6500A LOW DROPOUT VOL TAGE REGULATOR 500mA HIGH PSRR, LOW NOISE,FAST RESPONSE LINEAR REV1.3 - JUN 2011 RELEASED, FEB 2015 UPDATED - 1 DESCRIPTION FEATURES A6500A series is a group of positive voltage output, low power consumption, low dropout voltage regulator. A6500A can provide output value in the range of 1.0V~4.5V every 0.1V step. It also can be customized on command. A6500A includes high accuracy voltage reference, error amplifier, current limit circuit and output driver module with discharge capability. A6500A has excellent load and line transient response and good temperature characteristics, which can assure the stability of c hip and power system. And it uses trimming technique to guarantee output voltage accuracy within ±2%. A6500A is available in SOT-25 package.  Low Power Consumption: 30uA (Typ.)  Low Output Noise (50uV RMS)  Standby Mode: 0.1uA  Low Dropout Voltage: 0.08V@ 150mA (Typ.)  High Ripple Rejection: 72dB@ 1KHz (Typ.)  Low Temperature Coefficient: ±100ppm/℃  Excellent Line Regulation: 0.05%/V  Build-In chip enable and discharge circuit  Output Voltage Range: 1.0V~4.5V (customized on command every 0.1V Step  Highly accurate: ±2%  Output Current Limit  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

ORDERING INFORMATION

XX: Output Voltage 25=2.5V, 33=3.3V Z: A, B (Pin Description) R: Tape & Reel V: Halogen free Package AiT provides all RoHS products Suffix “ V “ means Halogen free Package TYPICAL APPLICATION CIRCUIT NOTE: Input capacitor (CIN = 1uF) and Output capacitor (COUT ≥ 1uF) are recommended in all application circuit.

AiT Semiconductor Inc. www.ait-ic.com A6500A LOW DROPOUT VOL TAGE REGULATOR 500mA HIGH PSRR, LOW NOISE,FAST RESPONSE LINEAR REV1.3 - JUN 2011 RELEASED, FEB 2015 UPDATED - 2 PIN DESCRIPTION Top View Top View Pin # Symbol Function SOT-25-XXA SOT-25-XXB 1 3 VIN Input voltage supply 2 2 VSS Ground 3 4 CE Chip enable 4 5 NC No connection 5 1 VOUT Output voltage

AiT Semiconductor Inc. www.ait-ic.com A6500A LOW DROPOUT VOL TAGE REGULATOR 500mA HIGH PSRR, LOW NOISE,FAST RESPONSE LINEAR REV1.3 - JUN 2011 RELEASED, FEB 2015 UPDATED - 3 ABSOLUTE MAXIMUM RATINGS Input Voltage 2V ~ 6V TJ, Operation Junction Temperature 150℃ Output Current 600mA Storage Temperature -65℃ ~ 150℃ Power Dissipation SOT-25 360mW IR Reflow Lead Temperature and Time 260℃, 10s ESD Rating, Human Body Mode 3000V Stresses above may cause permanent damage to the device. These are stress ratings only and functional operation of the device at these or any other conditions beyond those indicated in the Electrical Characteristics are not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. RECOMMENDED OPERATION RANGE Parameters Value Input Voltage 2V ~ 6V Operation Ambient Temperature -40℃ ~ 85℃ THERMAL RESISTANCE Package θJA θJC SOT-25 250°C/W 130°C/W NOTE: Thermal Resistance is specified with approximately 1 square of 1 oz copper.

AiT Semiconductor Inc. www.ait-ic.com A6500A LOW DROPOUT VOL TAGE REGULATOR 500mA HIGH PSRR, LOW NOISE,FAST RESPONSE LINEAR REV1.3 - JUN 2011 RELEASED, FEB 2015 UPDATED - 4

ELECTRICAL CHARACTERISTICS

Test Condition: CIN = 1uF, COUT = 1uF, TA = 25℃, unless otherwise specified. Parameter Symbol Conditions Min. Typ. Max. Unit Input Voltage VIN 2 - 6 V Output Voltage VOUT VIN = VOUTset + 1V 1mA ≦ IOUT ≦ 30mA VOUTset x 0.98 VOUTset VOUTset x 1.02 V Maximum Output Current IOUTMAX 600 - - mA Dropout Voltage VOUT ≧ 2.8V VDROP IOUT = 50mA - 25 40 mV IOUT = 100mA - 50 75 IOUT = 150mA - 75 115 IOUT = 400mA - 220 280 Line Regulation ΔVOUT ΔVIN × VOUT IOUT = 40mA 2.8V ≦ VIN ≦ 6V - 0.05 0.1 %/V Load Regulation ΔVOUT /Δ IOUT VIN = VOUTset + 1V 1mA ≦ IOUT ≦ 500mA - 100 150 mV Supply Current when Operation ISS VIN = VOUTset + 1V - 30 50 uA Supply Current when Shut Down Ishutdown V IN = VOUTset + 1V VCE = 0V - 0.1 1 uA Output Voltage Temperature Coefficient ΔVOUT ΔT × VOUT VIN = Set VOUT + 1V IOUT = 30mA - ±50 - ppm/℃ Power Supply Ripple Rejection Rate PSRR F = 1KHz Ripple = 0.5Vpp VIN = VOUTset + 1V - 72 - dB Output Short Current Limit ILIMIT VOUT = 0V - 500 - mA CE Input Voltage “H” VCEH 1.4 - - V CE Input Voltage “L” VCEL - - 0.25 V Output Noise en Bandwith=10Hz~100KHZ - 50 - uVRMS NOTE: VOUTset is the nominal output voltage that A6500A is set to, for example, 3.3V. VDROP = VIN - (VOUT * 0.98), in which VOUT is the output voltage when VIN = VOUTset + 1.0V at different output current, and VIN is the input voltage at which the output voltage becomes 98% of VOUT after gradually decreasing the input voltage.

AiT Semiconductor Inc. www.ait-ic.com A6500A LOW DROPOUT VOL TAGE REGULATOR 500mA HIGH PSRR, LOW NOISE,FAST RESPONSE LINEAR REV1.3 - JUN 2011 RELEASED, FEB 2015 UPDATED - 5 TYPICAL PERFORMANCE CHARACTERISTICS Test Condition: CIN=1uF, COUT=1uF, TA=25℃, CE pin is tied to VIN, VOUTset=3.3V, unless otherwise specified. 1. Output Voltage vs. Output Current 2. Output Voltage vs. Input Voltage 3. Dropout Voltage vs. Output Current 4. Ripple Rejection vs. Frequency 5. Line Transient Response (Ch1: VIN 4↔5V; Ch2: VOUT)

AiT Semiconductor Inc. www.ait-ic.com A6500A LOW DROPOUT VOL TAGE REGULATOR 500mA HIGH PSRR, LOW NOISE,FAST RESPONSE LINEAR REV1.3 - JUN 2011 RELEASED, FEB 2015 UPDATED - 6 6. Load Transient Response (Ch1: IOUT 1↔50mA; Ch2: VOUT) 7. Startup by CE (Ch1: VOUT; Ch2: CE) 8. Shutdown by CE (Ch1: VOUT; Ch2: CE) 9. Load Regulation (VIN = 4.5V, VOUT = 3.3V)

AiT Semiconductor Inc. www.ait-ic.com A6500A LOW DROPOUT VOL TAGE REGULATOR 500mA HIGH PSRR, LOW NOISE,FAST RESPONSE LINEAR REV1.3 - JUN 2011 RELEASED, FEB 2015 UPDATED - 7 BLOCK DIAGRAM

AiT Semiconductor Inc. www.ait-ic.com A6500A LOW DROPOUT VOL TAGE REGULATOR 500mA HIGH PSRR, LOW NOISE,FAST RESPONSE LINEAR REV1.3 - JUN 2011 RELEASED, FEB 2015 UPDATED - 8 DETAILED INFORMATION A6500A includes high accuracy voltage reference, error amplifier, current limit circuit and output driver module with discharge capability. A6500A has 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 vo ltage accuracy within ±2%. Low ESR ceramic capacitor can be used for A6500A for both input and output ends. Both 1uF can keep A6500A work stable. However, a larger o utput capacitor, such as 3.3uF/ 4.7uF is always recommended to compensate dynamic load current change.

AiT Semiconductor Inc. www.ait-ic.com A6500A LOW DROPOUT VOL TAGE REGULATOR 500mA HIGH PSRR, LOW NOISE,FAST RESPONSE LINEAR REV1.3 - JUN 2011 RELEASED, FEB 2015 UPDATED - 9

PACKAGE INFORMATION

Dimension in SOT-25 (Unit: mm) Symbol Min Max A 1.000 1.300 A1 0.000 0.100 A2 1.000 1.200 b 0.300 0.500 c 0.100 0.250 D 2.700 3.100 E 1.500 1.800 E1 2.500 3.100 e 0.950(BSC) e1 1.700 2.100 L 0.200 - θ 0° 8°

AiT Semiconductor Inc. www.ait-ic.com A6500A LOW DROPOUT VOL TAGE REGULATOR 500mA HIGH PSRR, LOW NOISE,FAST RESPONSE LINEAR REV1.3 - JUN 2011 RELEASED, FEB 2015 UPDATED - 10 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 r elevant 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 applic ations, 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 death, personal injury , or serve 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.