Data Sheet 300mA HIGH SPEED, EXTREMELY LOW NOISE CMOS LDO REGULATOR General Description Features The AP2126 series are positive voltage regulator ICs fabricated by CMOS process. · · · The AP2126 series have features of low dropout voltage, low noise, high output voltage accuracy, and low current consumption which make them ideal for use in various battery-powered devices. · · AP2126 is available in 1.25V to 5.5V adjustable voltage versions. AP2126 series are available in SOT-23-5 Package. AP2126 Wide Operating Voltage: 3.0V to 6V High Output Voltage Accuracy: ±2% High Ripple Rejection: 68dB@ f=1kHz, 54dB@ f=10kHz Low Standby Current: 0.1μA Low Dropout Voltage: 170mV@300mA for VOUT=3.3V, 140mV@300mA for VOUT=5.2V · · Low Quiescent Current: 60μA Typical Low Output Noise: 80μVrms@VOUT=1.25V · · · Short Current Limit: 50mA Over Temperature Protection Compatible with Low ESR Ceramic Capacitor: 1μF for CIN and COUT · · · Excellent Line/Load Regulation Soft Start Time: 50μs Auto Discharge Resistance: RDS(ON)=60Ω Applications · · · Datacom Notebook Computers Mother Board SOT-23-5 Figure 1. Package Type of AP2126 Sep. 2012 Rev. 1. 5 BCD Semiconductor Manufacturing Limited 1 Data Sheet 300mA HIGH SPEED, EXTREMELY LOW NOISE CMOS LDO REGULATOR AP2126 Pin Configuration K Package (SOT-23-5) VIN 1 GND 2 Shutdown 3 5 VOUT 4 ADJ Figure 2. Pin Configuration of AP2126 (Top View) Functional Block Diagram Shutdown Shutdown and Logic Control VIN VREF MOS Driver Current Limit And Thermal Protection VOUT ADJ GND Figure 3. Functional Block Diagram of AP2126 Sep. 2012 Rev. 1. 5 BCD Semiconductor Manufacturing Limited 2 Data Sheet 300mA HIGH SPEED, EXTREMELY LOW NOISE CMOS LDO REGULATOR AP2126 Ordering Information AP2126 G1: Green Circuit Type TR: Tape and Reel Package ADJ: ADJ Output K: SOT-23-5 Package Temperature Range SOT-23-5 -40 to 85oC Part Number AP2126K-ADJTRG1 Marking ID GHH Packing Type Tape & Reel BCD Semiconductor's products, as designated with "G1" suffix in the part number, are RoHS compliant and Green. BCD Semiconductor Manufacturing Limited Sep. 2012 Rev. 1. 5 3 Data Sheet 300mA HIGH SPEED, EXTREMELY LOW NOISE CMOS LDO REGULATOR AP2126 Absolute Maximum Ratings (Note 1) Parameter Symbol Value Unit Input Voltage VIN 6.5 V Shutdown Input Voltage VCE -0.3 to VIN+0.3 V Output Current IOUT 450 mA TJ 150 oC TSTG -65 to 150 oC TLEAD 260 Thermal Resistance (Junction to Ambient) θJA 250 oC/W ESD (Human Body Model) ESD 6000 V ESD (Machine Model) ESD 250 V Junction Temperature Storage Temperature Range Lead Temperature (Soldering, 10sec) o C Note 1: Stresses greater than those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under "Recommended Operating Conditions" is not implied. Exposure to "Absolute Maximum Ratings" for extended periods may affect device reliability. Recommended Operating Conditions Parameter Symbol Min Max Unit Input Voltage VIN 3.0 6 V Operating Ambient Temperature Range TA -40 85 oC Sep. 2012 Rev. 1. 5 BCD Semiconductor Manufacturing Limited 4 Data Sheet 300mA HIGH SPEED, EXTREMELY LOW NOISE CMOS LDO REGULATOR AP2126 Electrical Characteristics (AP2126-ADJ, VIN min=3.0V, CIN=1μF, COUT=1μF, Bold typeface applies over -40oC≤TA≤85oC, unless otherwise specified.) Parameter Reference Voltage Input Voltage Symbol VREF Conditions VIN=3.0V 1mA≤IOUT≤300mA VIN Min Typ Max Unit 1.225 1.25 1.275 V 6 V 3.0 IOUT(MAX) VIN=3.0V, VOUT=98%×VOUT Load Regulation ΔVOUT /(ΔIOUT*VOUT) VIN=3.0V, 1mA≤IOUT≤300mA 0.6 %/A Line Regulation ΔVOUT /(ΔVIN*VOUT) VIN=3.0V to 6V IOUT=30mA 0.06 %/V Maximum Output Current Quiescent Current Standby Current Power Supply Rejection Ratio Output Voltage Temperature Coefficient Short Current Limit Soft Start Time RMS Output Noise IQ ISTD PSRR (ΔVOUT/VOUT) /ΔT ISHORT 300 mA VIN=3.0V, IOUT=0mA 60 90 μA VIN=3.0V, VSHUTDOWN in off mode 0.1 1.0 μA Ripple 1Vp-p VIN=3.5V f=100Hz 68 dB f=1KHz 68 dB f=10KHz 54 dB ±100 ppm/oC 50 mA 50 μs 80 μVrms IOUT=30mA, -40oC≤TA≤85oC VOUT=0V tUP VNOISE 400 TA=25oC, 10Hz ≤f≤100kHz, VOUT=1.25V Shutdown "High" Voltage Shutdown input voltage "High" 1.5 6 V Shutdown "Low" Voltage Shutdown input voltage "Low" 0 0.4 V VOUT Discharge MOSFET RDS(ON) Shutdown input voltage "Low" 60 Ω 3 MΩ Thermal Shutdown 165 oC Thermal Shutdown Hysteresis 30 oC Shutdown Pull Down Resistance Thermal Resistance θJC SOT-23-5 150 o C/W BCD Semiconductor Manufacturing Limited Sep. 2012 Rev. 1. 5 5 Data Sheet 300mA HIGH SPEED, EXTREMELY LOW NOISE CMOS LDO REGULATOR AP2126 3.5 3.5 3.0 3.0 2.5 2.5 Output Voltage (V) Output Voltage (V) Typical Performance Characteristics 2.0 1.5 o TC=-40 C 1.0 o TC=25 C o TC=85 C 0.5 2.0 1.5 1.0 VIN=3.8V 0.5 VIN=6V VIN=4.3V 0 VIN=4.3V, VOUT=3.3V 0.0 0.0 0.1 0.2 0.3 0.4 TC=25 C, VOUT=3.3V 0.0 0.0 0.5 0.1 0.2 Figure 4. Output Voltage vs. Output Current TC=-40 C 200 TC=25 C o 0.18 o 0.16 o TC=85 C 0.14 VOUT=3.3V Dropout Voltage (V) Dropout Voltage (mV) 0.5 0.20 220 160 0.4 Figure 5. Output Voltage vs. Output Current 240 180 0.3 Output Current (A) Output Current (A) 140 120 100 80 60 0.12 0.10 0.08 40 0.04 20 0.02 0 50 100 150 200 250 0.00 -40 300 IOUT=10mA 0.06 IOUT=150mA IOUT=300mA VIN=4.3V, VOUT=3.3V -20 0 20 40 60 80 o Output Current (mA) Case Temperature ( C) Figure 6. Dropout Voltage vs. Output Current Figure 7. Dropout Voltage vs. Case Temperature Sep. 2012 Rev. 1. 5 BCD Semiconductor Manufacturing Limited 6 Data Sheet 300mA HIGH SPEED, EXTREMELY LOW NOISE CMOS LDO REGULATOR AP2126 Typical Performance Characteristics (Continued) 71 IOUT=0 VIN=4.3V VOUT=3.3V 70 o 110 TC=-40 C 105 TC=25 C 100 TC=85 C 95 VIN=4.3V, VOUT=3.3V 69 o o Quiescent Current (μA) Quiescent Current (μA) 115 90 85 80 75 70 68 67 66 65 64 63 65 0 50 100 150 200 250 62 -40 300 -20 0 20 60 80 100 120 o Figure 8. Quiescent Current vs. Output Current Figure 9. Quiescent Current vs. Case Temperature 80 3.348 70 IOUT=10mA VIN=4.3V VOUT=3.3V 3.346 3.344 60 3.342 Output Voltage (V) Quiescent Current (μA) 40 Case Temperature ( C) Output Current (mA) 50 40 30 20 3.338 3.336 3.334 3.332 o TC=25 C IOUT=0 VOUT=3.3V 10 0 3.340 0 1 2 3 4 5 3.330 3.328 3.326 6 -40 Input Voltage (V) -20 0 20 40 60 80 100 120 o Case Temperature ( C) Figure 11. Output Voltage vs. Case Temperature Figure 10. Quiescent Current vs. Input Voltage BCD Semiconductor Manufacturing Limited Sep. 2012 Rev. 1. 5 7 Data Sheet 300mA HIGH SPEED, EXTREMELY LOW NOISE CMOS LDO REGULATOR AP2126 Typical Performance Characteristics (Continued) o 3.5 TC=-40 C o TC=25 C Output Voltage (V) 3.0 o TC=85 C IOUT=0, VOUT=3.3V 2.5 IOUT 2.0 1.5 1.0 VOUT 0.5 0.0 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 Input Voltage (V) Figure 13. Load Transient Figure 12. Output Voltage vs. Input Voltage (Conditions: CIN=COUT=1μF, VIN=4.4V, VOUT=3.3V IOUT=10mA to 300mA) VIN VOUT VShutdown VOUT Figure 14. Line Transient Figure 15. Soft Start Time (Conditions: IOUT=30mA, CIN=COUT=1μF, (Conditions: IOUT=0mA, CIN=COUT=1μF, VIN=4 to 5V, VOUT=3.3V) VShutdown=0 to 2V, VOUT=3.3V) Sep. 2012 Rev. 1. 5 BCD Semiconductor Manufacturing Limited 8 Data Sheet 300mA HIGH SPEED, EXTREMELY LOW NOISE CMOS LDO REGULATOR AP2126 Typical Performance Characteristics (Continued) 100 90 IOUT=10mA 80 IOUT=300mA ripple=1Vpp, COUT=1μF, VOUT=3.3V PSRR (dB) 70 60 50 40 30 20 10 0 100 1000 10000 100000 Frequency (Hz) Figure 16. PSRR vs. Frequency BCD Semiconductor Manufacturing Limited Sep. 2012 Rev. 1. 5 9 Data Sheet 300mA HIGH SPEED, EXTREMELY LOW NOISE CMOS LDO REGULATOR AP2126 Typical Application VOUT VIN VIN VOUT AP2126 Shutdown R1 ADJ R2 COUT 1μF GND CIN 1μF VOUT=1.25*(1+R1/R2) V Figure 17. Typical Application of AP2126 Sep. 2012 Rev. 1. 5 BCD Semiconductor Manufacturing Limited 10 Data Sheet 300mA HIGH SPEED, EXTREMELY LOW NOISE CMOS LDO REGULATOR AP2126 Mechanical Dimensions SOT-23-5 Unit: mm(inch) 0.300(0.012) 0.600(0.024) 1.500(0.059) 1.700(0.067) 0.100(0.004) 0.200(0.008) 2.950(0.116) 2.650(0.104) 2.820(0.111) 3.020(0.119) 0.200(0.008) 0.700(0.028) REF 0.300(0.012) 0.400(0.016) 0° 8° 1.800(0.071) 2.000(0.079) 0.000(0.000) MAX 1.450(0.057) 0.950(0.037) TYP 0.150(0.006) 0.900(0.035) 1.300(0.051) BCD Semiconductor Manufacturing Limited Sep. 2012 Rev. 1. 5 11 BCD Semiconductor Manufacturing Limited http://www.bcdsemi.com IMPORTANT NOTICE IMPORTANT NOTICE BCD Semiconductor BCD Semiconductor Manufacturing Manufacturing Limited Limited reserves reserves the the right right to to make make changes changes without without further further notice notice to to any any products products or or specifispecifications herein. cations herein. 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