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| Advanced Analog Technology, Inc. AAT1501/A Details are subject to change without notice REGULATED CHARGE PUMP DC/DC CONVERTERS Features Monitored Output Voltage (AAT1501: VO = 5V 4% ) (AAT1501A: VO = 4.5V 4% ) Output Current: 120mA ( VDD = 3.3V) General Description The AAT1501/A is a charge pump DC/DC converter mainly used for white LED backlighting. It operates with an input voltage ranging from 2.7V to 5.0V to generate constant 5.0V (AAT1501) or 4.5V (AAT1501A) output. The regulated output is produced by using an internal feedback switched capacitor voltage doublers. The AAT1501/A requires no external inductor when operating. By using a flying capacitor, the AAT1501/A can deliver up to 120mA ( VDD = 3.3V) output current for the system. The AAT1501/A's typical ultra low operating current, and compact external parts make it an ideal component for small, portable, battery-powered applications. AAT1501/A comes in a compact 6-pin SOT-23 package to offer users optimal and economical power management solution. 150mA ( VDD = 3.6V) Input Voltage Range: 2.7V to 5.0V A Power-Saving Shutdown Current of less than 1A Internal Oscillation Frequency : 750kHz Compact SOT-23-6 Package Pin Configuration VO GND C F+ VDD C F- SHDN - - - xAEWAniN/|-1/2q Advanced Analog Technology, Inc. - Page 1 of 10 V1.0 Advanced Analog Technology, Inc. AAT1501/A Pin Description Pin No Name I/O Description 1 VO O Output Voltage 2 GND - Ground 3 SHDN I Shutdown Input Pin 4 C F- O Flying Capacitor Negative Terminal 5 VDD - Supply Voltage 6 C F+ I Flying Capacitor Positive Terminal Absolute Maximum Ratings CHARACTERISTICS Supply Voltage Output Voltage ( VO , VCF+ , VCF- ) Input Voltage ( VSHDN ) Storage Temperature Range Operating Temperature Range SYMBOL VDD VO VALUE 6 UNIT V 6 6 - 45 to 125 - 40 to 85 V V o o VI Tstorage C C TC - - - xAEWAniN/|-1/2q Advanced Analog Technology, Inc. - Page 2 of 10 V1.0 Advanced Analog Technology, Inc. AAT1501/A Electrical Characteristics, VDD = 3.3 V (Unless Otherwise Specified) Operating Condition Parameter Symbol Test Condition Min Typ Max Unit Supply Voltage Supply Current Shutdown Current Oscillation Frequency Thermal Shutdown Thermal Shutdown Hysteresis Output Performance Parameter VDD I DD I SHDN 2.7 VDD =2.7V VDD =2.7V to to 5.0V, 5.0V, I O =0 , SHDN = VDD I O =0 , SHDN = 0V 1.5 0.01 750 160 20 5.0 2.0 1.00 - V mA A f OSC TSHDN THYS kHz C C Symbol Test Condition Min Typ Max Unit Output Voltage Output Current Output Ripple Efficiency VOUT IO VOR AAT1501 AAT1501A VDD =3V, SHDN = VDD VDD =3V, I O =50mA VDD =2.7V, I O =30mA 4.8 4.3 80 - 5.0 4.5 50 83 5.2 4.7 - V V mA mV % Control Input Parameter Input Current SHDN High Voltage SHDN Low Voltage Symbol Test Condition I SHDN SHDN = 0 ~ VDD Min Typ Max Unit 1.1 0.1 1 A V VIH VIL 0.5 V - - - xAEWAniN/|-1/2q Advanced Analog Technology, Inc. - Page 3 of 10 V1.0 Advanced Analog Technology, Inc. AAT1501/A Block Diagram CF + VDD CF- VO SHDN VREF - - - xAEWAniN/|-1/2q Advanced Analog Technology, Inc. - Page 4 of 10 V1.0 Advanced Analog Technology, Inc. AAT1501/A Application Circuit VDD CIN 10F C F- C FLY GND 1F C F+ VO CO 10F VO VDD SHDN - - - xAEWAniN/|-1/2q Advanced Analog Technology, Inc. - Page 5 of 10 V1.0 Advanced Analog Technology, Inc. AAT1501/A Package Dimensions - - - xAEWAniN/|-1/2q Advanced Analog Technology, Inc. - Page 6 of 10 V1.0 Advanced Analog Technology, Inc. AAT1501/A Package Dimensions (Cont.) VARIATION (ALL DIMENSIONS SHOWN IN MILLIMETERS) SYMBOL MIN TYP ----------MAX A A1 A2 b c D E E1 e e1 L L1 L2 R R1 1 NOTE: ----------- 1.45 0.15 1.30 0.50 0.22 0.90 0.30 0.08 1.15 ----------- 2.90 BSC 2.80 BSC 1.60 BSC 0.95 BSC 1.90 BSC 0.30 0.45 0.60 REF 0.25 BSC 0.10 0.10 0 0.60 ----------4 10 ------ 0.25 8 15 5 1 JEDEC OUTLINE: MO-178 AB - - - xAEWAniN/|-1/2q Advanced Analog Technology, Inc. - Page 7 of 10 V1.0 Advanced Analog Technology, Inc. AAT1501/A Tape and Reel Packing Method: 3,000pcs/reel, 5 reels/box - - - xAEWAniN/|-1/2q Advanced Analog Technology, Inc. - Page 8 of 10 V1.0 Advanced Analog Technology, Inc. AAT1501/A Tape and Reel (Cont.) X.XXX X X.XXX X.XX X.X X 0.0025 0.006 0.025 0.10 0.25 UNIT: MILLIMETERS - - - xAEWAniN/|-1/2q Advanced Analog Technology, Inc. - Page 9 of 10 V1.0 Advanced Analog Technology, Inc. AAT1501/A Part Marking SOT23-6 TOP MARKING AXX NOTE: SOT23-6 HAS NO BACK MARKING. - - - xAEWAniN/|-1/2q Advanced Analog Technology, Inc. - Page 10 of 10 V1.0 |
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