Data Sheet AP1117M AP2318A 600mA LOW DROPOUT LINEAR REGULATOR 1A ULDO REGULATOR WITH ENABLE General Description Features The AP2318A is a series of ultra low dropout regulators optimized for low voltage applications where transient response and minimum input voltage are critical. · · · · Wide Operating Voltage Range: 2.5V to 12V Output Voltage Accuracy: ±1% On-chip Thermal Shutdown ESD Rating: 3000V (Human Body Model) 600V (Machine Model) · Operation Junction Temperature: -40oC to 125oC The AP2318A provides current limit and thermal shutdown function. Its circuit includes a trimmed bandgap reference to assure output voltage accuracy to be within ±1%. On-chip thermal shutdown provides protection against any combination of overload and ambient temperatures that would cause excessive junction temperatures. Applications · · · · · The AP2318A has adjustable version, which can set the output voltage through two external resistors. Notebook USB Device Add-on Card DVD Player PC Motherboard The AP2318A is available in the standard DFN-3x3-8 and PSOP-8 packages. DFN-3x3-8 PSOP-8 Figure 1. Package Type of AP2318A Aug. 2010 Rev 1. 3 BCD Semiconductor Manufacturing Limited 1 Data Sheet AP1117M AP2318A 600mA LOW DROPOUT LINEAR REGULATOR 1A ULDO REGULATOR WITH ENABLE Pin Configuration DN Package MP Package (DFN-3x3-8) (PSOP-8) NC 1 8 GND NC EN 2 7 ADJ 6 GND VIN 3 6 VOUT 5 ADJ VIN 4 5 NC VIN 1 8 EN VIN 2 7 VOUT 3 VOUT 4 Figure 2. Pin Configuration of AP2318A (Top View) Pin Description Pin Number Pin Name Function DFN-3x3-8 PSOP-8 1, 2 3, 4 VIN 3, 4 6 VOUT 5 7 ADJ Adjustable voltage 6 8 GND Ground 7 1, 5 NC No connection 8 2 EN On/Off control Input voltage Aug. 2010 Rev 1. 3 Output voltage BCD Semiconductor Manufacturing Limited 2 Data Sheet AP1117M AP2318A 600mA LOW DROPOUT LINEAR REGULATOR 1A ULDO REGULATOR WITH ENABLE Functional Block Diagram VIN EN 1, 2 (3, 4) 3, 4 (6) VOUT 8 (2) Enable Bandgap Reference RC Compensation OVP 5 (7) ADJ Error VFB Amplifier Thermal Shutdown Current Limit 6 (8) GND A (B) A: DFN-3x3-8 B: PSOP-8 Figure 3. Functional Block Diagram of AP2318A Aug. 2010 Rev 1. 3 BCD Semiconductor Manufacturing Limited 3 Data Sheet AP1117M AP2318A 600mA LOW DROPOUT LINEAR REGULATOR 1A ULDO REGULATOR WITH ENABLE Ordering Information AP2318A - Circuit Type E1: Lead Free Package TR: Tape and Reel G1: Green Blank: Tube DN: DFN-3x3-8 MP: PSOP-8 Package Temperature Range DFN-3x3-8 -40 to 125oC PSOP-8 -40 to 125oC ADJ: Adjustable Output Part Number Marking ID Lead Free Green Lead Free AP2318ADN-ADJTRG1 Green Packing Type B7B Tube AP2318AMP-ADJE1 AP2318AMP-ADJG1 2318A-ADJE1 2318A-ADJG1 Tube AP2318AMP-ADJTRE1 AP2318AMP-ADJTRG1 2318A-ADJE1 2318A-ADJG1 Tape & Reel BCD Semiconductor's Pb-free products, as designated with "E1" suffix in the part number, are RoHS compliant. Products with "G1" suffix are available in green packages. Aug. 2010 Rev 1. 3 BCD Semiconductor Manufacturing Limited 4 Data Sheet AP1117M AP2318A 600mA LOW DROPOUT LINEAR REGULATOR 1A ULDO REGULATOR WITH ENABLE Absolute Maximum Ratings (Note 1) Parameter Symbol Value Unit Input Voltage VIN 15 V TJ 150 TSTG -65 to 150 oC TLEAD 260 oC Operating Junction Temperature Storage Temperature Range Lead Temperature (Soldering, 10sec) θJA Thermal Resistance, Junction to Ambient (Note 2) o C DFN-3x3-8 120 PSOP-8 108 oC/W ESD (Human Body Model) ESD 3000 V ESD (Machine Model) ESD 600 V 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. Note 2: Absolute maximum ratings indicate limits beyond which damage to the component may occur. Electrical specifications do not apply when operating the device outside of its operating ratings. The maximum allowable power dissipation is a function of the maximum junction temperature, TJ(Max), the junction-to-ambient thermal resistance, θJA, and the ambient temperature, TA. The maximum allowable power dissipation at any ambient temperature is calculated using: PD(max)=(TJ(Max) TA)/θJA. Exceeding the maximum allowable power dissipation will result in excessive die temperature, and the regulator will go into thermal shutdown. Recommended Operating Conditions Parameter Symbol Min Max Unit Input Voltage VIN 2.5 12 V Enable Voltage VEN 12 V Operating Junction Temperature Range TJ -40 Aug. 2010 Rev 1. 3 125 o C BCD Semiconductor Manufacturing Limited 5 Data Sheet AP1117M AP2318A 600mA LOW DROPOUT LINEAR REGULATOR 1A ULDO REGULATOR WITH ENABLE Electrical Characteristics Operating Conditions: 2.5V≤VIN≤12V, CIN=1µF, COUT=2.2µF, TJ=25oC, unless otherwise specified. (P≤Maximum Power Dissipation). Limits appearing in Boldface type apply over the entire junction temperature range for operation of -40oC to 125oC. Parameter Reference Voltage Maximum Output Current Line Regulation Conditions Symbol VREF Min AP2318A-ADJ, IOUT=10mA, VIN-VOUT=2V, TJ=25oC,10mA≤IOUT≤1A, VOUT+2V≤VIN ≤12V IOUT(Max) VIN-VOUT=2V VRLINE VRLOAD 1.2 AP2318A-ADJ IOUT=10mA, VOUT+2V≤VIN≤12V AP2318A-ADJ VIN=VOUT+2V, 10mA≤IOUT≤1A VIN=2.5V, 10mA≤IOUT≤1A Dropout Voltage Adjust Pin Current Minimum Load Current VDROP ∆VOUT (∆VREF)=1%, VOUT>2V, IOUT=1A ILOAD(Min) VOUT+2V≤VIN≤12V (ADJ only) IQ RMS Output Noise (% of VOUT) VNOI Unit V 1.5 A 0.05 0.2 %/V 1 6 mV 0.2 0.4 % 1 15 mV 0.5 IADJ Quiescent Current Max 1.237 1.250 1.262 1.225 1.250 1.275 IOUT=10mA, 2.5V≤VIN ≤12V Load Regulation Typ VIN=VOUT+2V, IOUT=0mA TA=25oC, 10Hz≤f≤20kHz Thermal Shutdown Temperature Thermal Shutdown Hysteresis V 0.05 1 µA 1.7 5 mA 250 µA 0.003 % o C 150 oC 25 Enable Input Voltage VEN Enable Input Current IEN Thermal Resistance (Junction to Case) θJC Enable logic low 0.8 Enable logic high V 2.25 VEN=2.25V µA 5 VEN=0.8V µA 4 DFN-3x3-8 15 PSOP-8 12 Aug. 2010 Rev 1. 3 o C/W BCD Semiconductor Manufacturing Limited 6 Data Sheet AP1117M AP2318A 600mA LOW DROPOUT LINEAR REGULATOR 1A ULDO REGULATOR WITH ENABLE 3.0 3.0 2.8 2.8 2.6 2.6 2.4 2.4 2.2 2.2 2.0 2.0 Output Voltage (V) Output Voltage (V) Typical Performance Characteristics 1.8 1.6 1.4 AP2318A-ADJ VOUT=2.5V 1.2 1.0 o TC=25 C 0.8 IOUT=500mA 0.2 IOUT=1000mA 1 2 3 4 5 6 7 8 9 10 VIN=3.5V 1.4 o TC= -40 C 1.2 o 1.0 TC=25 C 0.8 TC=125 C o 0.6 0.4 0.0 0 1.6 IOUT=10mA 0.6 AP2318A-ADJ VOUT=2.5V 1.8 0.4 0.2 11 0.0 0 12 200 400 600 Input Voltage (V) 800 1000 1200 1400 1600 1800 2000 Output Current (mA) Figure 5. Output Voltage vs. Output Current Figure 4. Output Voltage vs. Input Voltage 340 400 336 350 332 Supply Current (µA) Supply Current (µA) 300 250 200 150 AP2318A-ADJ VOUT=1.25V 100 T C=-40 C o 0 0 T C=25 C o 2 3 4 5 6 7 320 316 312 AP2318A-ADJ VIN=3.25V VOUT=1.25V 304 T C=125 C 1 324 308 o 50 328 300 -40 8 -20 0 20 40 60 80 100 120 o Case Temperature ( C) Input Voltage (V) Figure 7. Supply Current vs. Case Temperature Figure 6. Supply Current vs. Input Voltage Aug. 2010 Rev 1. 3 BCD Semiconductor Manufacturing Limited 7 Data Sheet AP1117M AP2318A 600mA LOW DROPOUT LINEAR REGULATOR 1A ULDO REGULATOR WITH ENABLE 20 20 18 18 16 16 Supply Current (mA) Supply Current (mA) Typical Performance Characteristics(Continued) 14 12 AP2318A-ADJ VIN=3.25V 10 8 VOUT=1.25V 6 o TC=25 C TC=-40 C 2 TC=125 C 12 10 AP2318A-ADJ VOUT=1.25V 8 o TC=25 C 6 VIN=3.25V 4 o 4 14 o VIN=2.5V 2 VIN=12V 0 0 0 150 300 450 600 750 900 1050 1200 1350 0 1500 150 300 450 Figure 8. Supply Current vs. Output Current 900 1050 1200 1350 1500 100 AP2318A-ADJ VOUT=2.5V 0.60 0.55 90 80 o 0.50 TC=-40 C 0.45 TC= 25 C 0.40 TC=125 C o 70 o PSRR (dB) Dropout Voltage (V) 750 Figure 9. Supply Current vs. Output Current 0.65 0.35 0.30 0.25 0.20 0.15 60 50 40 30 AP2318A-ADJ VIN=3V to 4V 20 VOUT=1.25V 0.10 10 0.05 0.00 600 Output Current (mA) Output Current (mA) 0 100 200 300 400 500 600 700 800 900 1000 0 10 CIN=1µF, COUT=2.2µF ILOAD=10mA 100 1k 10k 100k Frequency (Hz) Output Current (mA) Figure 11. PSRR vs. Frequency Figure 10. Dropout Voltage vs. Output Current Aug. 2010 Rev 1. 3 BCD Semiconductor Manufacturing Limited 8 Data Sheet AP1117M AP2318A 600mA LOW DROPOUT LINEAR REGULATOR 1A ULDO REGULATOR WITH ENABLE ∆VOUT 50mV/Div ∆VOUT 100mV/Div IOUT 200mA/Div IOUT 500mA/Div Typical Performance Characteristics (Continued) Figure 12. Load Transient Response VIN=2.5V, VOUT=1.25V, IOUT=1 to 500mA, CIN=1µF, COUT=2.2µF Figure 13. Load Transient Response VIN=2.5V, VOUT=1.8V, IOUT=1mA to 1A, CIN=1µF, COUT=2.2µF Aug. 2010 Rev 1. 3 BCD Semiconductor Manufacturing Limited 9 Data Sheet AP1117M AP2318A 600mA LOW DROPOUT LINEAR REGULATOR 1A ULDO REGULATOR WITH ENABLE Typical Application VOUT VIN VIN VOUT AP2318A-ADJ EN CIN 1µF + R1 ADJ GND + COUT 2.2µF R2 Figure 14. Typical Application of AP2318A ADJ Version, VOUT=1.25*(R1+R2)/R2 Aug. 2010 Rev 1. 3 BCD Semiconductor Manufacturing Limited 10 Data Sheet AP1117M AP2318A 600mA LOW DROPOUT LINEAR REGULATOR 1A ULDO REGULATOR WITH ENABLE Mechanical Dimensions DFN-3x3-8 Unit: mm(inch) 0.180(0.007) 0.300(0.012) 2.900(0.114) 3.100(0.122) N5 0.650(0.026) BSC N8 0.375(0.015) 0.575(0.023) 2.900(0.114) 1.400(0.055) 3.100(0.122) 1.600(0.063) 2.200(0.087) 2.400(0.094) Pin 1 Dot by Marking PIN #1 IDENTIFICATION N4 N1 0.153(0.006) 0.253(0.010) 0.000(0.000) 0.700(0.028) 0.050(0.002) 0.800(0.031) Aug. 2010 Rev 1. 3 BCD Semiconductor Manufacturing Limited 11 Data Sheet AP1117M AP2318A 600mA LOW DROPOUT LINEAR REGULATOR 1A ULDO REGULATOR WITH ENABLE Mechanical Dimensions (Continued) PSOP-8 Unit: mm(inch) 3.800(0.150) 4.000(0.157) 2.313(0.091) 3.202(0.126) 3.402(0.134) 2.513(0.099) 1.270(0.050) TYP 4.700(0.185) 5.100(0.200) 0.330(0.013) 0.510(0.020) 5.800(0.228) 6.200(0.244) 0.050(0.002) 0.150(0.006) φ 1.350(0.053) 1.550(0.061) 1.350(0.053) 0° 8° 1.750(0.069) 0.400(0.016) 1.270(0.050) 0.170(0.007) 0.250(0.010) Note: Eject hole, oriented hole and mold mark is optional. Aug. 2010 Rev 1. 3 BCD Semiconductor Manufacturing Limited 12 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. BCD BCD Semiconductor Semiconductor Manufacturing Manufacturing Limited Limited does does not not assume assume any any responsibility responsibility for for use use of of any any its its products products for for any any particular purpose, particular purpose, nor nor does does BCD BCD Semiconductor Semiconductor Manufacturing Manufacturing Limited Limited assume assume any any liability liability arising arising out out of of the the application application or or use use of any of any its its products products or or circuits. circuits. 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