A6305. AiT Semiconductor Inc. DESCRIPTION FEATURES APPLICATION ORDERING INFORMATION

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1 DESCRIPTION The is a dual, low-noise, low-dropout regulator delivering at least 300mA of continuous output current. The output voltage for each regulator is set independently by trimming. Voltages are selectable in 100mA steps within a range of 1.5V to 4.5V. Typical output noise is 47μVRMS, and PSRR is 73dB at 100Hz. The includes two independent logic-controlled shutdown inputs and allows the output of each regulator to be turned is independently. The includes high accuracy voltage reference, error amplifier, and current limit circuit and output driver module. The 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 voltage accuracy within ±2%. The is available in SOT-23-6 package ORDERING INFORMATION FEATURES Two Low Dropout Voltage Regulators 300mA Output Current for Each LDO 20uA Operating Supply Current Per LDO Low 47μVRMS Output Noise Standby Mode:0.1μA Low 160mV dropout at 300 ma load 73dB PSRR at 100Hz Excellent Line regulation: 0.05%/V Independent Shutdown Controls 1.5V to 4.5V Factory-Preset Output Output Current Limit Available in SOT-26 Package APPLICATION Cellular Phones Power Management of MP3, PDA, DSC, PMP, PND, Mouse, PS2 Games Cordless Phones Reference Voltage Source Communication Equipment Battery Powered Equipment Notebook and Hand-held Devices Wireless LAN, Bluetooth, GPS Receivers Radio Communication Equipment Typical Application Package Type Part Number SOT-26 E6 E6R-X E6VR-X X: Output Portfolio Note See output voltage portfolio V: Green Package R: Tape & Reel AiT provides all Pb free products Suffix V means GREEN PACKAGE REV1.0 - SEP 2008 RELEASED

2 PIN DESCTRIPTION Pin # Symbol 1 VOUT2 Output2 Pin 2 GND Ground Pin 3 EN2 Chip Enable Pin2 4 EN1 Chip Enable Pin1 5 VIN Input Pin 6 VOUT1 Output1 Pin Function OUTPUT VOLTAGE PORTFOLIO Code Output Voltage OUT1 OUT2 Part Number Pb Free GREEN Code Output Voltage OUT1 OUT2 Part Number Pb Free GREEN B E6R-B E6VR-B K E6R-K E6VR-K C E6R-C E6VR-C M E6R-M E6VR-M D E6R-D E6VR-D O E6R-O E6VR-O E E6R-E E6VR-E P E6R-P E6VR-P G E6R-G E6VR-G Q E6R-Q E6VR-Q H E6R-H E6VR-H R E6R-R E6VR-R I E6R-I E6VR-I S E6R-S E6VR-S J E6R-J E6VR-J T E6R-T E6VR-T REV1.0 - SEP 2008 RELEASED

3 ABSOLUTE MAXIMUM RATING Max Input Voltage Junction Temperature(TJ) Power Dissipation (PD, SOT-26) Storage Temperature (Ts) Ambient Temperature (TA) Lead Temperature and Time 8V 125 o C 250mW -40 o C~+85 o C -40 o C~150 o C 260 o C, 10S Stresses beyond 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. REV1.0 - SEP 2008 RELEASED

4 ELECTRICAL CHARACTERISTICS CTERISTICS C1=1μF, COUT=3.3μF, TA=25 o C, unless otherwise specified. Symbol Parameter Conditions Min Typ Max Unit VIN Input Voltage 6 V VOUT Output Voltage VIN=Set VOUT+1V 1mA IOUT 30mA VOUT VOUT x0.98 x1.02 IOUT (Max) Max Output Current VIN-VOUT=1V 300 ma VDROP ΔVOUT ΔVIN x VOUT Dropout Voltage IOUT=100mA mv VOUT 2.8V IOUT=300mA Line Regulation IOUT=40mA %/V 2.8V Vin 6V ΔVOUT/ΔIOUT Load Regulation VIN=Set VOUT+1V mv 1mA IOUT 300mA Iss Supply Current VIN=Set VOUT+1V μa ISTANDBY Supply Current (Standby) VIN=Set VOUT+1V, VCE=GND μa ΔVOUT Output Voltage Temperature IOUT =30mA ±100 ppm/ o C ΔT x VOUT Coefficiency PSRR Ripple Rejection F=100Hz, 73 db Ripple=0.5Vp-p VIN=Set VOUT+1V ILIM Short Current Limit VOUT =0V 500 ma RPULLDOWN CE Pull down Resistance mω VCEH Chip Enable Input Voltage H 1.5 VIN V VCEL Chip Enable Input Voltage L V NOUT Output Noise BW=10Hz~100KHz 47 μvrms V REV1.0 - SEP 2008 RELEASED

5 TYPICAL PERFORMANCE CHARACTERISTICS 1. Output Voltage vs. Output Current with output short protection 2. Output Voltage vs. Input Voltage IOUT = 14mA 3. Dropout Voltage vs. Output Current VOUT=3.3V 4. Ripple Rejection vs. Frequency VOUT=3.3V 5. Line Transient Response CIN=COUT=1μF, IOUT=25mA, VOUT=3.3V REV1.0 - SEP 2008 RELEASED

6 6. Load Transient Response CIN=COUT=1μF, VIN=4.5V, VOUT=3.3V 7. Start up from EN REV1.0 - SEP 2008 RELEASED

7 BLOCK DIAGRAM REV1.0 - SEP 2008 RELEASED

8 PACKAGE INFORMATION Dimension in SOT-26 (Unit: mm) Tape Dimension Reel Dimension REV1.0 - SEP 2008 RELEASED

9 IMPORTANT NOTICE (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. '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 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 servere property, or environmental damage. In order to minimize risks associated with the customer's applications, the customer should provide adequate design and operating safeguards. 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. REV1.0 - SEP 2008 RELEASED