AME8753

AME, Inc. AME8753 n General Description The AME8753 dual, low dropout, linear regulators operate from V OUT+VDROPOUT to 5.5V input and deliver up to 500mA / 500mA output current each. Low dropout voltage and low quiescent current(70µA typ.)make them ideal for battery applications. The AME8753 is available with a wide variety of voltage options as standard and can be trimmed to 2% accuracy. For protection purpose, AME8753 has both thermal shutdown and current fold-back to prevent device failure under the "Worst" operating conditions. Low Dropout 500mA / 500mA Dual CMOS LDO Regulator n Functional Block Diagram Error Amp1 Current Limit VOUT1 R11 R12 VIN GND Error Amp2 Current Limit VOUT2 R21 Voltage Reference R22 n Features l Very Low Dropout Voltage l Guaranteed 500mA / 500mA Each Output l Accurate to within 2% for both outputs l Typical 70 µA Quiescent Current l Over-Temperature Shutdown l Current Limiting l Short Circuit Current Fold-back l All AME’s Lead Free Products Meet RoHS Standards n Typical Applications Fixed Version VIN IN OUT1 VOUT1 VOUT2 AME8753A OUT2 GND 1µF 1µF 1µF n Applications l Cellular Phones l Palm / Notebook l Battery Power Equipment l Handheld Instruments Rev.A.02 1 AME, Inc. AME8753 n Pin Configuration SOP-8/PP Top View 8 7 6 5 Low Dropout 500mA / 500mA Dual CMOS LDO Regulator AME 8753AEZA 1. IN 2. GND AME8753 3. GND 4. OUT1 5. OUT2 6. GND 1 2 3 4 7. GND 8. GND * Die Attach: Conductive Epoxy Note: The area enclosed by dashed line represents Exposed Pad and connection to GND. n Pin Description Pin Number 1 Pin Name IN Description Regulator Input. Supply voltage can range from Higher VOUT+VDROPOUT to 5.5V. This input also supplies the on-chip reference. Bypass with 1µF capacitor to GND. Ground. This pin also functions as heatsink. Solder to a large pad or the circuitboard ground plane to maximize thermal dissipation. Ground. This pin also functions as heatsink. Solder to a large pad or the circuitboard ground plane to maximize thermal dissipation. Regulator 1 Output. Sources up to 500mA continuous current. Bypass with a 1µF (< 0.5Ω typ ESR) capacitor to GND. Regulator 2 Output. Sources up to 500mA continuous current. Bypass with a 1µF (< 0.5Ω typ ESR) capacitor to GND. Ground. This pin also functions as heatsink. Solder to a large pad or the circuitboard ground plane to maximize thermal dissipation. Ground. This pin also functions as heatsink. Solder to a large pad or the circuitboard ground plane to maximize thermal dissipation. Ground. This pin also functions as heatsink. Solder to a large pad or the circuitboard ground plane to maximize thermal dissipation. Rev.A.02 2 GND 3 GND 4 OUT1 5 OUT2 6 GND 7 GND 8 2 GND AME, Inc. AME8753 n Ordering Information AME8753 x x x x xxxx x Special Feature Output Voltage Number of Pins Package Type Operating Ambient Temperature Range Pin Configuration Operating Ambient Temperature Range E: -40OC to 85OC Number of Pins A: 8 Output Voltage (Both LDOs) 2533: VOUT1=2.5V VOUT2=3.3V Low Dropout 500mA / 500mA Dual CMOS LDO Regulator Pin Configuration A (SOP-8/PP) Package Type Z: SOP/PP Special Feature 1. IN 2. GND 3. GND 4. OUT1 5. OUT2 6. GND 7. GND 8. GND Z: Lead free n Ordering Information Part Number AME8753AEZA2533Z Marking* AME8753 AEZA2533 yyww Output Voltage VOUT1=2.5V VOUT2=3.3V Package SOP-8/PP Operating Ambient Temperature Range - 40oC to 85oC Note:yyww represents date code . * a line on top of the first letter represents lead free plating such as AME8753. Please consult AME sales office or authorized Rep./Distributor for voltage accuracy and package type availability. Rev.A.02 3 AME, Inc. AME8753 Low Dropout 500mA / 500mA Dual CMOS LDO Regulator n Absolute Maximum Ratings Parameter Input Voltage Output Voltage Output Current ESD Classification Maximum -0.3 to 6 -0.3 to VIN + 0.3 PD / [2V IN -(V OUT1+VOUT2)] C* Unit V V mA Caution: Stress above the listed absolute maximum rating may cause permanent damage to the device * HBM C:4000V+ n Recommended Operating Conditions Parameter Ambient Temperature Range Junction Temperature Range Storage Temperature Range Symbol TA TJ TSTG Rating -40 to 85 -40 to 125 -65 to 150 Unit o C C C o o n Thermal Information Parameter Thermal Resistance * (Junction to Case) Thermal Resistance (Junction to Ambient) Internal Power Dissipation Maximum Junction Temperature Solder Iron (10 Sec)** SOP-8/PP Conductive Epoxy Package Die Attach Symbol θJC θJA PD Maximum 19 Unit o C/W 84 1450 150 350 mW o C C o * Measure θJC on center of molding compound if IC has no tab. ** MIL-STD-202G 210F 4 Rev.A.02 AME, Inc. AME8753 n Electrical Specifications Unless specified: TJ=25OC, VIN=Higher VOUT+1V, IOUT1=IOUT2=1mA, CIN=COUT=1µF. Typical values are at TJ=25OC Parameter IN Input Supply Voltage Quiescent Current OUT1, OUT2 IOUT=1mA Output Voltage VOUT 0mA