MCP1826/MCP1826S Data Sheet - Microchip Technology

1 2007-2013 Microchip Technology 1 mcp1826 / mcp1826 SFeatures: 1000 mA Output Current Capability Input Operating Voltage Range: to Adjustable Output Voltage Range: to ( mcp1826 only) Standard Fixed Output Voltages:- , , , , , , Other Fixed Output Voltage Options Available Upon Request Low Dropout Voltage: 250 mV Typical at 1000 mA Typical Output Voltage Tolerance: Stable with F Ceramic Output Capacitor Fast Response to Load Transients Low Supply Current: 120 A (typ) Low Shutdown Supply Current: A (typ) ( mcp1826 only) Fixed Delay on Power Good Output( mcp1826 only) Short Circuit Current Limiting and Overtemperature Protection TO-263-5 (DDPAK-5), TO-220-5, SOT-223-5 Package Options ( mcp1826 ). TO-263-3 (DDPAK-3), TO-220-3, SOT-223-3 Package Options ( mcp1826s ).

2 Applications: High-Speed Driver Chipset Power Networking Backplane Cards Notebook Computers Network Interface Cards Palmtop ComputersDescription:The MCP1826/MCP1826S is a 1000 mA Low Dropout(LDO) linear regulator that provides high-current andlow-output voltages. The mcp1826 comes in a fixed oradjustable output voltage version, with an outputvoltage range of to The 1000 mA output cur-rent capability, combined with the low-output voltagecapability, make the mcp1826 a good choice for output voltage LDO applications that havehigh current demands. The mcp1826s is a 3-pin fixedvoltage MCP1826/MCP1826S is stable using ceramicoutput capacitors that inherently provide lower outputnoise and reduce the size and cost of the entireregulator solution.

3 Only 1 F of output capacitance isneeded to stabilize the LDO. Using CMOS construction, the quiescent currentconsumed by the MCP1826/MCP1826S is typicallyless than 120 A over the entire input voltage range,making it attractive for portable computing applicationsthat demand high-output current. The MCP1826versions have a Shutdown (SHDN) pin. When shutdown, the quiescent current is reduced to less the mcp1826 fixed output versions the scaled-down output voltage is internally monitored and apower good (PWRGD) output is provided when theoutput is within 92% of regulation (typical). ThePWRGD delay is internally fixed at 200 s (typical).The overtemperature and short circuit current-limitingprovide additional protection for the LDO during systemFault conditions.

4 1000 mA, Low-Voltage, Low Quiescent CurrentLDO RegulatorMCP1826/ mcp1826 SDS22057B-page 2 2007-2013 Microchip Technology TypesMCP1826123456 SOT-223-5 PinFixedAdjustable1 SHDNSHDN2 VINVIN3 GND (TAB)GND (TAB)4 VOUTVOUT5 PWRGD ADJ6 GND (TAB)GND (TAB)123 SOT-223-34 mcp1826 SPin1 VIN2 GND (TAB)3 VOUT4 GND (TAB)Fixed/AdjustableDDPAK-3 DDPAK-5TO-220-3TO-220-51234512345123123 2007-2013 Microchip Technology 3 mcp1826 / mcp1826 STypical ApplicationMCP1826 Adjustable Output VoltageMCP1826 Fixed Output VoltageVOUT = @ 1000 mAVIN = to F100 k FC1C2R1 SHDNVINGNDVOUTPWRGD20 k R2 VOUT = @ 1000 mAVIN = to F40 k FC1C2R1 SHDNVINGNDVOUTVADJ11 mcp1826 / mcp1826 SDS22057B-page 4 2007-2013 Microchip Technology Block Diagram Adjustable OutputEA+ VOUTPMOSRfCfISNSO vertemperatureVREFComp92% of VREFTDELAYVIND river w/limitand SHDNGNDSoft-StartADJ/SENSEU ndervoltage LockoutVINR eferenceSHDNSHDNSHDNS ensing(UVLO) 2007-2013 Microchip Technology 5 mcp1826 / mcp1826 SFunctional Block Diagram Fixed Output (3-Pin)

5 EA+ VOUTPMOSRfCfISNSO vertemperatureVREFComp92% of VREFTDELAYVIND river w/limitand SHDNGNDSoft-StartSenseUndervoltage LockoutVINR eferenceSHDNSHDNSHDNS ensing(UVLO) mcp1826 / mcp1826 SDS22057B-page 6 2007-2013 Microchip Technology Block Diagram Fixed Output (5-Pin)EA+ VOUTPMOSRfCfISNSO vertemperatureVREFComp92% of VREFVIND river w/limitand SHDNGNDSoft-StartSenseUndervoltage LockoutVINR eferenceSHDNSHDNSHDNS ensing(UVLO)PWRGDTDELAY 2007-2013 Microchip Technology 7 mcp1826 CHARACTERISTICSA bsolute Maximum Ratings Voltage on Any Pin .. (GND ) to (VDD + )VMaximum Power Internally-Limited (Note 6)Output Short Circuit Duration .. ContinuousStorage temperature ..-65 C to +150 CMaximum Junction Temperature, +150 CESD protection on all pins (HBM/MM) 4kV; 300V Notice: Stresses above those listed under MaximumRatings may cause permanent damage to the device.

6 This isa stress rating only and functional operation of the device atthose or any other conditions above those indicated in theoperational listings of this specification is not implied. Expo-sure to maximum rating conditions for extended periods mayaffect device CHARACTERISTICSE lectrical Specifications: Unless otherwise noted, VIN = VOUT(MAX) + VDROPOUT(MAX), Note 1, VR= for Adjustable Output, IOUT = 1 mA, CIN = COUT = F (X7R Ceramic), TA = +25 type applies for junction temperatures, TJ (Note 7) of -40 C to +125 C Operating 1 Input Quiescent CurrentIq 120220 AIL = 0 mA, VOUT = to Quiescent Current for SHDN ModeISHDN ASHDN = GNDM aximum Output CurrentIOUT1000 mAVIN = to = to , Note 1 Line Regulation VOUT/(VOUT x VIN) (Note 1) VIN 6 VLoad Regulation = 1 mA to 1000 mA, (Note 4)Output Short Circuit CurrentIOUT_SC ARLOAD< , Peak CurrentAdjust Pin Characteristics (Adjustable Output Only)

7 Adjust Pin Reference = to VIN= ,IOUT = 1 mAAdjust Pin Leakage CurrentIADJ-10 +10nAVIN = , VADJ=0 Vto6 VAdjust Temperature CoefficientTCVOUT 40 ppm/ CNote 3 Fixed-Output Characteristics (Fixed Output Only)Voltage RegulationVOUTVR - + 2 Note 1:The minimum VIN must meet two conditions: VIN and VIN VOUT(MAX) VDROPOUT(MAX).2:VR is the nominal regulator output voltage for the fixed cases. VR = , , etc. VR is the desired set point output voltage for the adjustable cases. VR = VADJ * ((R1/R2)+1). Figure :TCVOUT = (VOUT-HIGH VOUT-LOW) *106 / (VR * Temperature). VOUT-HIGH is the highest voltage measured over the temperature range. VOUT-LOW is the lowest voltage measured over the temperature :Load regulation is measured at a constant junction temperature using low duty-cycle pulse testing.

8 Load regulation is tested over a load range from 1 mA to the maximum specified output :Dropout voltage is defined as the input-to-output voltage differential at which the output voltage drops 2% below its nominal value that was measured with an input voltage of VIN = VOUT(MAX) + VDROPOUT(MAX).6: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). Exceeding the maximum allowable power dissipation will cause the device operating junction temperature to exceed the maximum +150 C rating. Sustained junction temperatures above 150 C can impact device :The junction temperature is approximated by soaking the device under test at an ambient temperature equal to the desired junction temperature.

9 The test time is small enough such that the rise in the junction temperature over the ambient temperature is not 8 2007-2013 Microchip Technology CharacteristicsDropout VoltageVDROPOUT 250400mVNote 5, IOUT = 1000 mA, VIN(MIN)= Good CharacteristicsPWRGD Input Voltage Operat-ing Range = +25 = -40 C to +125 CFor VIN < , ISINK=100 APWRGD Threshold Voltage(Referenced to VOUT)VPWRGD_TH%VOUTF alling Edge899295 VOUT < Fixed,VOUT = >= FixedPWRGD Threshold Output Voltage LowVPWRGD_L SINK = mA,ADJ = 0 VPWRGD LeakagePWRGD_LK 1 nAVPWRGD = VIN = Time DelayTPG 125 sRising EdgeRPULLUP = 10 k Detect Threshold to PWRGD Active Time DelayTVDET-PWRGD 200 sVOUT = VPWRGD_TH + 20 mV to VPWRGD_TH - 20 mVShutdown InputLogic High Input VSHDN-HIGH45 %VINVIN = to Low Input VSHDN-LOW 15%VINVIN = to Input Leakage + AVIN=6V, SHDN =VIN,SHDN = GNDAC PerformanceOutput Delay From SHDNTOR 100 sSHDN = GND to VIN VOUT = GND to 95% VR Output NoiseeN V/ Hz IOUT = 200 mA, f = 1 kHz, COUT = 10 F (X7R Ceramic), VOUT = CHARACTERISTICS (CONTINUED)Electrical Specifications.

10 Unless otherwise noted, VIN = VOUT(MAX) + VDROPOUT(MAX), Note 1, VR= for Adjustable Output, IOUT = 1 mA, CIN = COUT = F (X7R Ceramic), TA = +25 type applies for junction temperatures, TJ (Note 7) of -40 C to +125 C 1:The minimum VIN must meet two conditions: VIN and VIN VOUT(MAX) VDROPOUT(MAX).2:VR is the nominal regulator output voltage for the fixed cases. VR = , , etc. VR is the desired set point output voltage for the adjustable cases. VR = VADJ * ((R1/R2)+1). Figure :TCVOUT = (VOUT-HIGH VOUT-LOW) *106 / (VR * Temperature). VOUT-HIGH is the highest voltage measured over the temperature range. VOUT-LOW is the lowest voltage measured over the temperature :Load regulation is measured at a constant junction temperature using low duty-cycle pulse testing. Load regulation is tested over a load range from 1 mA to the maximum specified output :Dropout voltage is defined as the input-to-output voltage differential at which the output voltage drops 2% below its nominal value that was measured with an input voltage of VIN = VOUT(MAX) + VDROPOUT(MAX).