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1 CMOS LDO Typical Applicationn Functional Block DiagramThe AME8816 family of positive, linear regulators fea-ture low quiescent current (45mA typ.) with low dropoutvoltage, making them ideal for battery voltages are set at the factory and trimmed rugged devices have both Thermal Shutdown,and Current Fold-back to prevent device failure under the"Worst" operating applications requiring a low noise, regulated supply,place a 1000pF capacitor between Bypass and AME8816 is stable with an output capacitance or Instrumentationl Portable Electronicsl Wireless Devicesl PC Peripheralsl Battery Powered Widgetsn General Descriptionn Featuresn Applications(Adjustable Version) (external)R1(external) (Fixed Version)l Very Low Dropout Voltagel Guaranteed Outputl Accurate to within 45mA Quiescent Current Typicallyl Over-Temperature Shutdownl Current Limitingl Short Circuit Current Fold-backl Noise Reduction Bypass Capacitor (Fixed Versions)

2 L Power-Saving Shutdown Model Low Temperature Coefficientl Adjustable Versionl All AME s Lead Free Products Meet RoHS CMOS LDOAME8816 Rev. Pin ConfigurationSOP-8 Top ViewSOP-8 Top ViewAME * Die Attach: Conductive EpoxyAME * Die Attach: Conductive EpoxyAME View1324 AME881656781324 AME881656781324 AME88165678 * Die Attach: Conductive CMOS LDO Pin DescriptionPin NamePin DescriptionINInput voltage should be decoupled with 1mF or greater connection pulled low, the PMOS pass transistor turns off, current consuming lessthan 1 capacitor improve AC ripple rejection, connect a 1000pF capacitor to will also provide a soft-start voltage regulator output should be decoupled with a F or greater value low ESR ceramic output voltage for adjustable CMOS LDOAME8816 Rev. Ordering InformationOperating Ambient Temperature RangeNumber of PinsPackage TypePin ConfigurationSpecial FeatureAME8816 x x x x xxx xOutput VoltageA1.

3 BYPE: -40OC to +85 OCH:SOPA:8 ADJ:AdjustableZ:Lead Free(SOP-8)2. GND150:V= GND180:V= EN250:V= IN330:V= GND475:V= GND500:V= OUTB1. ADJ(SOP-8)2. GND3. GND4. EN5. IN6. GND7. GND8. OUTC1. EN(SOP-8)2. IN3. OUT4. ADJ5. GND6. GND7. GND8. GNDPinConfigurationOperating AmbientTemperature RangeSpecial FeatureOutput VoltagePackage TypeNumber CMOS LDO Ordering InformationPart NumberMarking*Output VoltagePackageOperating AmbientTemperature 40oC to + 40oC to + 40oC to + 40oC to + 40oC to + 40oC to + 40oC to + 40oC to + 40oC to + 40oC to + 40oC to + 40oC to + CMOS LDOAME8816 Rev. Ordering Information (Contd.)Note: yyww represents the date code * A line on top of the first character represents lead free plating such as AME8816 Please consult AME sales office or authorized for the availability of output voltage and package NumberMarking*Output VoltagePackageOperating AmbientTemperature RangeAME8816 BEHAADJAME8816 BEHAADJ yywwADJSOP-8- 40oC to +85oCAME8816 BEHAADJZAME8816 BEHAADJ yywwADJSOP-8- 40oC to +85oCAME8816 CEHAADJAME8816 CEHAADJ yywwADJSOP-8- 40oC to +85oCAME8816 CEHAADJZAME8816 CEHAADJ yywwADJSOP-8- 40oC to + CMOS LDO Absolute Maximum Ratingsn Recommended Operating Conditionsn Thermal InformationCaution: Stress above the listed absolute maximum rating may cause permanent damage to the device.

4 * HBM B:2000V~3999V* Measure qJC on backside center of tab. ** Measure qJC on center of molding compound if IC has no tab. ** MIL-STD-202G210 FParameterSymbolRatingUnitAmbient Temperature RangeTA- 40 to +85oCJunction Temperature RangeTJ- 40 to +125oCStorage Temperature RangeTSTG- 65 to +150oCParameterMaximumUnitInput to +8 VEN, BYP to +8 VOutput to VIN + CurrentPD / (VIN - VOUT)mAESD ClassificationB*ParameterPackageDie AttachSymbolMaximumUnitThermal Resistance(Junction to Case)SOP-8** qJC60 Thermal Resistance(Junction to Ambient)SOP-8 qJA150 Internal Power DissipationSOP-8PD810mW150oC350oCoC / WConductive EpoxyMaximum Junction TemperatureSolder Iron(10 Sec)** CMOS LDOAME8816 Rev. Voltage VINNote 17 VOutput Voltage Accuracy <VO(NOM)<= <VO(NOM)<= <VO(NOM)600 Output Current IO1500mACurrent LimitILIM15002000mAShort Circuit Current ISC750mAQuiescent Current(For Fixed Output Voltage Options)Minimun Load Current(For ADJ Option)IMIN1mAGround Pin Current IGND45mAVO < > VO >= <= Regulation Temerature Shutdown OTS150oCOver Temerature Hysterisis OTH30oCVO Temperature CoefficientTC30ppm/oCADJ Input Bias CurrentIADJ1mAADJ Reference Supply = 5V , VO=0V, VEN=0 VdBVIN = 5V , VADJ = Input ThresholdEN Input Bias Current VIN= 7 VVEN=0V, VIN= 7 VOutput Voltage Noise eNf=10Hz to 100kHzIO=10mA,CBYP= Voltage Noise eNf=10Hz to 100kHzIO=10mA,CBYP=0mFIO=100mACO= ceramicCBYP= Supply RejectionTest Condition30IO=100mACO= ceramicPower Supply RejectionPSRRmVVO> > < (NOM)

5 VoltageVDROPOUTIO=1mA to to Regulation REGLINEIO=1mAVIN=VO+1 to VO+2IQ VEN = VEHmin, IO=1mA IO=0mA4570mAn Electrical SpecificationsVIN = VO(NOM) +2V, VEN = VIN, TA = 25OC unless otherwise notedNote1:VIN(min)=VOUT+ (nom) : nominal output voltage of fixed CMOS LDO AME8816 family of CMOS regulators contain aPMOS pass transistor, voltage reference, error amplifier,over-current protection, and thermal P-channel pass transistor receives data from theerror amplifier, over-current shutdown, and thermal pro-tection circuits. During normal operation, the error ampli-fier compares the output voltage to a precision and Thermal shutdown circuits become ac-tive when the junction temperature exceeds 140oC, orthe current exceeds During thermal shutdown, theoutput voltage remains low. Normal operation is restoredwhen the junction temperature drops below AME8816 behaves like a current source when theload reaches However, if the load impedance dropsbelow ohms, the current drops back to 600mA toprevent excessive power dissipation.

6 Normal operationis restored when the load resistance exceeds Detailed Descriptionn External CapacitorsThe AME8816 is stable with an output capacitor toground of or greater. Ceramic capacitors have thelowest ESR, and will offer the best AC performance. Con-versely, Aluminum Electrolytic capacitors exhibit the high-est ESR, resulting in the poorest AC response. Unfortu-nately, large value ceramic capacitors are comparativelyexpensive. One option is to parallel a ceramiccapacitor with a 10mF Aluminum Electrolytic. The benefitis low ESR, high capacitance, and low overall second capacitor is recommended between the in-put and ground to stabilize Vin. The input capacitor shouldbe at least to have a beneficial third capacitor can be connected between the BY-PASS pin and GND. This capacitor can be a low costPolyester Film variety between the value of ~ A larger capacitor improves the AC ripple rejec-tion, but also makes the output come up slowly.

7 This"Soft" turn-on is desirable in some applications to limitturn-on capacitors should be placed in close proximity tothe pins. A "Quiet" ground termination is desirable. Thiscan be achieved with a "Star" EnableWhen pulled low, the PMOS pass transistor shuts off,and all internal circuits are powered down. In this state,the quiescent current is less than 1mA. This pin behavesmuch like an electronic resistor is necessary between VEN sourceand EN pin when VEN is higher than VIN.(Note: There is no internal pull-up for EN PIN.)n Adjustable VersionThe adjustable version uses external feedback resis-tors to generate an output voltage anywhere from Vadj is trimmed to and VOUT is given by theequation: VOUT=VADJ (1+R1/R2)Feedback resistors R1 and R2 should be high enoughto keep quiescent current low, but increasing R1 + R2will reduce stability. In general, R1 and R2 in the 10 s ofkW will produce adequate stability, given reasonable lay-out precautions.

8 To improve stability characteristics, keepparasitics on the ADJ pin to a minimum, and lower R1and R2 CMOS LDOAME8816 Rev. Voltage vs. ILOADQ uiescent Current vs. TemperatureGround Current vs. VINVOUT vs. Temperature( )Ground Current vs. Load CurrentDropout Voltage vs. VOUTn Characterization CurveILOAD (A)Dropout Voltage (V) (V)Dropout Voltage (V)252729313335373941-45-5255585115 Temperature (oC)Quiescent Current @5V(uA)1015202530354045502345678 IOUT= 140mAVOUT= (V)Ground Current (mA) 251. 5 VIN= Current (A)Ground Current (mA) (oC)Output Voltage (V) CMOS LDO Step 40mA to Voltage vs. Load Current( )Line Transient ResponseLoad Regulation vs. TemperatureCurrent Limit ResponseAME8816 BEHA VADJ vs. Temperaturen Characterization Curve (Contd.) (oC)Load Regulation (%) 5115 oC85 oC55 oC25 oC-5 oC-45 oCLoad Current (A)Dropout Voltage (mV) (V)Temperature (oC)CIN= TF= 1mSVOUT= (20mS/Div)VIN(2V/Div)VOUT(50mV/Div)0 ACIN= (500mS/Div)VOUT(10mV/Div)ILOAD(1A/Div)IL IMISC0A0 VVIN= 5 VCIN= (1ms/Div)ILOAD(1A/Div)VOUT(1V/Div) CMOS LDOAME8816 Rev.

9 Circuit Current vs. VINO vertemperature ShutdownStability vs. ESR vs. ILoadStability vs. ESR vs. ILoadStability vs. ESR vs. ILoadCurrent Limit vs. VINn Characterization Curve (Contd.) (V)Current Limit (A) (V)Short Circuit Current (A)Time (100mS/Div)0V0 AVIN= 4 VCIN= (1A/Div)VOUT(1V/Div)ILOAD (mA)CLESR (W)0. 010 .11101001000100000250500750100012501500 Stable RegionUntested RegionUnstable RegionCL=5mFILOAD (mA)CLESR (W) RegionUntested RegionUnstable RegionCL= RegionUntested RegionUnstable RegionCL=10mFILOAD (mA)CLESR (W) CMOS LDO External Resistor Divider TableR1(K Ohm) (kohm)=( *R1(kohm))/( ) CMOS LDOAME8816 Rev. External Resistor Divider Table (Contd.)Note: Small load(greater than 2 mA) is necessary as R1 or R2 is larger than 50 K Ohm. Otherwise, outputvoltageprobably cannot be pulled down to 0 V on disable (K Ohm) (kohm)=( *R1(kohm))/( ) CMOS LDO Tape and Reel DimensionCarrier Tape, Number of Components Per Reel and Reel SizeSOP-8 PackageCarrie r Width (W)Pitch (P)Pitch (P0)Part Pe r Full Re e lRe e l mm2500pcs330 1 mmPIN 1WP0 AMEAMEP7o(4X) Top ViewSide ViewFront ViewDELAA2A1eBCHPIN 1n Package DimensionSOP-8 Life Support Policy:These products of AME, Inc.

10 Are not authorized for use as critical components in life-supportdevices or systems, without the express written approval of the presidentof AME, , Inc. reserves the right to make changes in the circuitry and specifications of its devices andadvises its customers to obtain the latest version of relevant information. AME, Inc. , September 2015 Document: HeadquarterAME, , 12, WenHu St., Nei-HuTaipei 114, Taiwan .Tel: 886 2 2627-8687 Fax: 886 2.