500mA Low-Noise LDO Regulator - Microchip …

1 2017 Microchip Technology 1 MIC5209 Features Output Voltage Range: 15V Meets Intel Slot 1 and Slot 2 Requirements Guaranteed 500 mA Output Over the Full Operating Temperature Range Low 500 mV Maximum Dropout Voltage at Full Load Extremely Tight Load and Line Regulation Thermally Efficient Surface-Mount Package Low Temperature Coefficient Current and Thermal Limiting Reversed-Battery Protection No-Load Stability 1% Output Accuracy Ultra- Low-Noise Capability in SOIC-8 and DDPAK Ultra-Small 3 mm 3 mm DFN PackageApplications Pentium II Slot 1 and Slot 2 Support Circuits Laptop, Notebook, and Palmtop Computers Cellular Telephones Consumer and Personal Electronics SMPS Post- Regulator and DC/DC Modules High-Efficiency Linear Power SuppliesGeneral DescriptionThe MIC5209 is an efficient linear voltage regulatorwith very low dropout voltage, typically 10 mV at lightloads and less than 500 mV at full load, with better than1% output voltage especially for hand-held, battery-powereddevices, the MIC5209 features low ground current tohelp prolong battery life.

2 An enable/shutdown pin onthe SOIC-8 and DDPAK versions can further improvebattery life with near-zero shutdown features include reversed-battery protection,current limiting, overtemperature shutdown,ultra- Low-Noise capability (SOIC-8 and DDPAK versions), and is available in thermally efficientpackaging. The MIC5209 is available in adjustable orfixed output Application NOMINAL INPUT SLOT 1 POWER SUPPLYULTRA-LOW NOISE5V 1%22 FTANTALUM12345678 ENABLESHUTDOWN470pF(OPTIONAL)500 mA Low-Noise LDO RegulatorMIC5209DS20005720A-page 2 2017 Microchip Technology (S)FIXED VOLTAGES (TOP VIEW)MIC5209 YML8-PIN 3X3 DFN (ML)ADJUSTABLE VOLTAGES (TOP VIEW) (M)FIXED VOLTAGES (TOP VIEW) (U)FIXED VOLTAGES (TOP VIEW)5 BYP4 OUT3 GND2IN1 ENDNGBATMIC5209 YMSOIC-8 (M)ADJUSTABLE VOLTAGES (TOP VIEW)MIC5209 YUDDPAK (U)ADJUSTABLE VOLTAGES (TOP VIEW)12348765 GNDGNDGNDGNDENNINOUTOUTJADJ5 ADJ4 OUT3 GND2IN1 ENDNGBATAA 2017 Microchip Technology 3 MIC5209 Functional DiagramsLOW-NOISEFIXED Regulator (SOT-223 VERSION ONLY)

3 ULTRA-LOW-NOISEFIXED ~ 40 CBANDGAPREFERENCEENCURRENT-LIMITTHERMAL SHUTDOWNCBYP(OPTIONAL)BYPULTRA- Low-Noise ADJUSTABLE REGULATORVININMIC5209YM/U (ADJUSTABLE)OUTVOUTCOUTGNDBANDGAPREFEREN CEENCURRENT-LIMITTHERMAL SHUTDOWNCBYP(OPTIONAL)ADJR1R2 MIC5209DS20005720A-page 4 2017 Microchip Technology CHARACTERISTICSA bsolute Maximum Ratings Supply Voltage (VIN).. 20V to +20 VPower Dissipation (PD) (Note 1).. Internally LimitedESD Rating (SOT-223).. 2 kV HBM/300V MMESD Rating (DFN, SOIC-8).. 5 kV HBM/100V MMOperating Ratings Supply Voltage (VIN).. + to +16 VAdjustable Output Voltage Range (VOUT) .. + to +15V Notice: Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the is a stress rating only and functional operation of the device at those or any other conditions above those indicatedin the operational sections of this specification is not intended.

4 Exposure to maximum rating conditions for extendedperiods may affect device reliability. Notice: The device is not guaranteed to function outside its operating 1:The maximum allowable power dissipation at any TA (ambient temperature) is PD(max) = (TJ(max) TA) x the maximum allowable power dissipation will cause excessive die temperature, and the regula-tor will go into thermal shutdown. See Ta b l e 4 - 1 and the Thermal Considerations sub-section in ApplicationsInformation for details. 2017 Microchip Technology 5 MIC5209 TABLE 1-1:ELECTRICAL CHARACTERISTICS (Note 1)Electrical Characteristics: VIN = VOUT + 1V; IL = 100 A; TJ = +25 C, bold values indicate 40 C TJ +125 C except 0 C TJ +125 C for VOUT , unless Voltage AccuracyVOUT 1 1%Variation from nominal VOUT 2 2 Output Voltage Temperature Coefficient VOUT/ T 40 ppm/ CNote 2 Line Regulation VOUT/VOUT = VOUT + 1V to 16V Regulation VOUT/VOUT = 100 A to 500 mA, Note 3 Voltage, (Note 4)VIN VOUT 1060mVIL = 100 A 80 115175IL = 50 mA 250 165300IL = 150 mA 400 350500IL = 500 mA 600 Ground Pin Current (Note 5, Note 6)IGND 80130 AVEN , IOUT = 100 A 170 350650 VEN , IOUT = 50 mA 900 , IOUT = 150 mA 820 VEN , IOUT = 500 mA 25 Ground Pin Quiescent Current, (Note 6)IGND AVEN (shutdown) (shutdown)

5 Ripple RejectionPSRR 75 dBf = 120 HzCurrent LimitILIMIT 700900mAVOUT = 0V 1000 Thermal Regulation VOUT/ PD %/WNote 7 Output Noise, (Note 8)en 500 nV HzVOUT = , IOUT = 50 mACOUT = F, CBYP = 0 300 IOUT = 50 mA, COUT = FCBYP = 470 pFMIC5209DS20005720A-page 6 2017 Microchip Technology InputEnable Input Logic-Low VoltageVENL = Logic-low ( Regulator shutdown) VVEN = Logic-high ( Regulator enabled)Enable Input CurrentIENL 1 AVENL 2 VENL IENH 520 AVENH 25 30 VENH 16V 50 Note 1:Specification for packaged product :Output voltage temperature coefficient is defined as the worst-case voltage change divided by the total temperature :Regulation is measured at constant junction temperature using low duty cycle pulse testing. Parts are tested for load regulation in the load range from 100 A to 500 mA.

6 Changes in output voltage due to heat-ing effects are covered by the thermal regulation :Dropout Voltage is defined as the input to output differential at which the output voltage drops 2% below its nominal value measured at 1V :Ground pin current is the Regulator quiescent current plus pass transistor base current. The total current drawn from the supply is the sum of the load current plus the ground pin :VEN is the voltage externally applied to devices with the EN (enable) input pin. SOIC-8 (M) and DDPAK (U) packages :Thermal regulation is the change in output voltage at a time t after a change in power dissipation is applied, excluding load or line regulation effects. Specifications are for a 500 mA load pulse at VIN = 16V for t = 10 :CBYP is an optional, external bypass capacitor connected to devices with a BYP (bypass) or ADJ (adjust) pin.

7 SOIC-8 (M) and DDPAK (U) packages 1-1:ELECTRICAL CHARACTERISTICS (Note 1) (CONTINUED)Electrical Characteristics: VIN = VOUT + 1V; IL = 100 A; TJ = +25 C, bold values indicate 40 C TJ +125 C except 0 C TJ +125 C for VOUT , unless 2017 Microchip Technology 7 MIC5209 TEMPERATURE SPECIFICATIONS (Note 1) RangesStorage Temperature RangeTS 65 +150 C Lead Temperature +260 CSoldering, 5 Temperature TJ 40 +125 VOUT 15 VJunction TemperatureTJ0 +125 VOUT < Thermal ResistanceThermal Resistance SOT-223 JA 62 C/WEIA/JEDEC JES51-751-7,4 Layer Board JC 15 C/WThermal Resistance SOIC-8 JA 50 C/WSee Thermal Considerations for more information. JC 25 C/WThermal Resistance DDPAK JA C/WEIA/JEDEC JES51-751-7,4 Layer Board JC 3 C/WThermal Resistance 3 mm x 3 mm DFN JA 64 C/WEIA/JEDEC JES51-751-7,4 Layer Board JC 12 C/WNote 1:The maximum allowable power dissipation is a function of ambient temperature, the maximum allowable junction temperature and the thermal resistance from junction to air ( , TA, TJ, JA).

8 Exceeding the maximum allowable power dissipation will cause the device operating junction temperature to exceed the maximum +125 C rating. Sustained junction temperatures above +125 C can impact the device 8 2017 Microchip Technology PERFORMANCE CURVESFIGURE 2-1:Power Supply Rejection 2-2:Power Supply Rejection 2-3:Power Supply Rejection 2-4:Power Supply Rejection 2-5:Power Supply Rejection 2-6:Power Supply Rejection :The graphs and tables provided following this note are a statistical summary based on a limited number ofsamples and are provided for informational purposes only. The performance characteristics listed hereinare not tested or guaranteed. In some graphs or tables, the data presented may be outside the specifiedoperating range ( , outside specified power supply range) and therefore outside the warranted range.

9 2017 Microchip Technology 9 MIC5209 FIGURE 2-7:Power Supply Ripple Rejection vs. Voltage 2-8:Power Supply Ripple Rejection vs. Voltage 2-9:Noise 2-10:Noise 2-11:Noise 2-12:Dropout Voltage vs. Output 10 2017 Microchip Technology 2-13:Ground Current vs. Output 2-14:Ground Current vs. Supply 2-15:Ground Current vs. Supply Voltage. 2017 Microchip Technology DESCRIPTIONSThe descriptions of the pins are listed in Table 3-1:PIN FUNCTION TABLEPin Number8-Pin DFNPin NumberSOT-223 Pin NumberSOIC-8 Pin NumberDDPAKPin NameDescription1, 2122 INSupply , TAB5, 6, 7, 83, TABGNDG round: SOT-223 Pin 2 and TAB are internally connected. SOIC-8 Pins 5 through 8 are internally , 4334 OUTR egulator Output: Pins 3 and 4 must be tied NCNot 11 ENEnable (Input): CMOS-compatible control input. Logic-High = Enable; Logic-Low = Shutdown.

10 4 (Fixed)5 (Fixed)BYPR eference Bypass: Connect external 470 pF capacitor to GND to reduce output noise. Can be left open. For or operation, see Application 4 (Adjustable) 5 (Adjustable)ADJA djust (Input): Feedback input. Connect to resistive voltage-divider ePadExposed Thermal Pad: Connect to GND for best thermal 12 2017 Microchip Technology is not available on devices in the SOT-223 (S) EN (enable/shutdown) high (> 2V) enables theregulator. EN is compatible with CMOS logic. If theenable/shutdown feature is not required, connect EN toIN (supply input). CapacitorA 1 F capacitor should be placed from IN to GND ifthere is more than 10 inches of wire between the inputand the AC filter capacitor or if a battery is used as CapacitorAn output capacitor is required between OUT and GNDto prevent oscillation.