Advanced Power Electronics Corp. APE8805 600mA LOW DROPOUT LINEAR REGULATOR Features Description ● Low Dropout Voltage of 600mV at 600mA ● Guaranteed 600mA Output Current ● Very Low Quiescent Current at about 30uA ● Max. ± 2%Output Accuracy ● Needs Only 1µF Capacitor for Stability ● Thermal Shutdown Protection ● Current Limit Protection ● Low-ESR Ceramic Capacitor for Output Stability ● RoHS Compliant The APE8805 series are low dropout, positive linear regulators with very low quiescent current. The APE8805 can supply 600mA output current with a low dropout voltage at about 600mV. The APE8805 regulator is able to operate with output capacitors as small as 1µF for stability. Other than the current limit protection APE8805 also offers on chip thermal shutdown feature providing protection against overload or any condition when the ambient temperature exceeds the junction temperature. The APE8805 series are available in fixed output voltage ranging from 1.8 volt , 2.5 volt and 3.3 volt. The APE8805 series are available in space-saving SOT-23, SOT-89, and SOT-223 packages. Applications ● DVD/CD-ROMs, CD/RWs ● Wireless Devices ● LCD Modules ● Battery Power Systems ● Card Readers ● XDSL Routers Typical Application Circuit VIN VOUT APE8805 1µF CIN GND 1µF COUT Figure 1. Typical Application Circuit of APE8805 Note：To prevent oscillation, it is recommended to use minimum 1µF X7R or X5R dielectric capacitors if ceramics are used as input/output capacitors. Data and specifications subject to change without notice. 200427062-1/9 Advanced Power Electronics Corp. APE8805 Pin Assignments Ordering Information APE8805 □ - □ SOT-23(N) Output Voltage 18: 1.8V 25: 2.5V 33: 3.3V 3 1 Package Type N: SOT-23 G: SOT-89 GR: SOT-89 K: SOT-223 2 TOP VIEW 1. GND 2. VOUT 3. VIN SOT-89(G) 1 2 3 TOP VIEW 1. GND 2. VIN 3. VOUT SOT-89(GR) 1 2 3 Note：The devices are available in fixed voltages range of TOP VIEW 1. VOUT 2. GND 3. VIN SOT-223(K) 1.8V , 2.5V& 3.3V. Please consult APEC sales office or authorized distributor for availability of special output 1 2 3 TOP VIEW 1. VOUT 2. GND 3. VIN voltages. Figure 2. Pin Assignment of APE8805 Absolute Maximum Ratings Parameter Symbol Min Max Unit Supply Input Voltage VIN 6 V Maximum Junction Temperature TJ 150 ºC Power Dissipation SOT-23 PD 0.4 W Power Dissipation SOT-89 PD 0.57 W Power Dissipation SOT-223 PD 0.74 W Package Thermal Resistance SOT-23 θJA 250 °C/W Package Thermal Resistance SOT-89 θJA 175 °C/W Package Thermal Resistance SOT-223 θJA 135 °C/W 150 ºC 260 ºC Storage Temperature Range Lead Temperature (Soldering, 10 sec.) TS TLEAD -65 Note：Stresses beyond those listed under “Absolute Maximum Ratings" may cause permanent damage to the device. 2/9 Advanced Power Electronics Corp. APE8805 Recommended Operating Conditions Parameter Symbol Min Max Unit Input Voltage VIN 2.8 5.5 V Operating Junction Temperature Range TJ -40 125 ºC Electrical Characteristics (VIN=VOUT+1V or VIN=2.8V whichever is greater, CIN=1µF, COUT=1µF, TA=25 ºC, unless otherwise specified) Parameter Symbol Output Voltage Accuracy Current Limit Quiescent Current Dropout Voltage (Note 1) Conditions Min ∆VOUT IO= 1mA -2 ILIMIT RLoad=1Ω 600 IQ IO= 0mA VDROP IO=600mA Typ Max Unit +2 % mA 30 1.2V ≤ VOUT ≤ 2.0V 1400 2.0V < VOUT ≤ 2.8V 800 2.8V < VOUT ≤ 4.5V 600 50 µA mV Line Regulation ∆VLINE IO=1mA, VIN=VOUT +1V to 5V 1 5 mV Load Regulation (Note 2) ∆VLOAD IO=0mA to 600mA 13 50 mV Ripple Rejection PSRR VIN=VOUT+1V fRIPPLE = 120Hz, COUT = 1µF 60 dB IOUT = 1mA, VIN = 5V 50 ppm/ ºC Temperature Coefficient TC Thermal Shutdown Temperature TSD 160 ºC Thermal Shutdown Hysteresis ∆TSD 25 ºC Note 1：The dropout voltage is defined as VIN-VOUT, which is measured when VOUT drop about 100mV. Note 2：Regulation is measured at a constant junction temperature by using 40ms current pulse and load regulation in the load range from 0mA to 600mA. Functional Pin Description Pin Name VIN VOUT GND Pin Function Power is supplied to this device from this pin which is required an input filter capacitor. In general, the input capacitor in the range of 1µF to 10µF is sufficient. The output supplies power to loads. The output capacitor is required to prevent output voltage unstable. The APE8805 is stable with an output capacitor 1µF or greater. The larger output capacitor will be required for application with large transit load to limit peak voltage transits, besides could reduce output noise, improve stability, PSRR. Common ground pin 3/9 Advanced Power Electronics Corp. APE8805 Block Diagram VIN RSEN VOUT PMOS Current Limit _ Error Amp R1 + Thermal Shutdown R2 Vref 1.2V GND Figure 3. Block Diagram of APE8805 Application Information The APE8805 series are low dropout linear regulators that could provide 600mA output current at dropout voltage about 600mV. Besides, current limit and on chip thermal shutdown features provide protection against any combination of overload or ambient temperature that could exceed junction temperature. 1.Output and Input Capacitor The APE8805 regulator is designed to be stable with a wide range of output capacitors. The ESR of the output capacitor affects stability. Larger value of the output capacitor decreases the peak deviations and provides to improve transition response for larger current changes. The capacitor types (aluminum, ceramic, and tant- alum) have different characterizations such as temperature and voltage coefficients. All ceramic capacitors are manufactured with a variety of dielectrics, each with different behavior across temperature and applications. Common dielectrics used are X5R, X7R and Y5V. It is recommended to use 1uF to 10uF X5R or X7R dielectric ceramic capacitors with 30mΩ Ω to 50mΩ Ω ESR range betw- een device outputs to ground for transient stability. The APE8805 is designed to be stable with low ESR ceramic capacitors and higher values of capacitors and ESR could improve output stability. So the ESR of output capacitor is very important beca- use it generates a zero to provide phase lead for loop stability. There are no requirements for the ESR on the input capacitor, but its voltage and temperature coefficient have to be considered for device application environment. 2.Protection Features In order to prevent overloading or thermal cond- ition from damaging device, APE8805 regulator has internal thermal and current limiting functions designed to protect the device. It will rapidly shut off PMOS pass element during overloading or over temperature condition. 3.Thermal Consideration The power handling capability of the device will be limited by maximum operation junction temp- erature (125°°C). The power dissipated by the device will be estimated by PD = IOUT × (VIN-VOUT). The power dissipation should be lower than the maximum power dissipation listed in “Absolute Maximum Ratings” section. 4/9 Advanced Power Electronics Corp. APE8805 Typical Performance Curves 50 50 Vout=3.3V Cin=1uF Cout=1uF Quiescent Current (uA) Quiescent Current (uA) Vout=1.8V Cin=1uF Cout=1uF 45 40 35 45 40 35 30 3.0 30 3.0 3.5 4.0 4.5 5.0 5.5 4.0 5.5 6.0 850 Vout=1.8V Cin=1uF Cout=1uF Vout=3.3V Cin=1uF Cout=1uF 700 Current Limit(mA) 800 750 800 850 750 700 650 3.0 3.5 4.0 4.5 5.0 5.5 6.0 3.5 4.0 Input Voltage(V) 4.5 5.0 5.5 6.0 Input Voltage(V) Figure 6. Current limit vs. Input Voltage Figure 7. Current Limit vs. Input Voltage 850 850 Vin=5V Vout=1.8V Cin=1uF Cout=1uF 800 Current Limit(mA) Current Limit(mA) 5.0 Figure 5. Quiescent Current vs. Input Voltage 650 800 4.5 Input Voltage(V) Figure 4. Quiescent Current vs. Input Voltage Current Limit(mA) 3.5 6.0 750 700 Vin=5V Vout=3.3V Cin=1uF Cout=1uF 750 700 650 650 -25 0 25 50 75 0 Temperature( C) Figure 8. Current limit vs. Temperature 100 125 -25 0 25 50 75 100 125 0 Temperature( C) Figure 9. Current limit vs. Temperature 5/9 Advanced Power Electronics Corp. APE8805 Typical Performance Curves (Continued) 60 Vin=5V Vout=1.8V Cin=1uF Cout=1uF 50 40 30 Vin=5V Vout=3.3V Cin=1uF Cout=1uF 50 Quiescent Current(uA) Quiescent Current(uA) 60 40 30 20 20 -25 0 25 50 75 100 -50 125 -25 0 50 75 100 125 Temperature( C) Figure 10. Quiescent Current vs. Temperature Figure 11. Quiescent Current vs. Temperature 1.90 3.40 Vin=5V Cin=1uF Cout=1uF Vin=5V Cin=1uF Cout=1uF 3.35 Output Voltage(V) 1.85 1.80 1.75 1.70 3.30 3.25 3.20 -25 0 25 50 75 100 125 -25 0 25 0 50 75 100 125 0 Temperature( C) Temperature( C) Figure 12. Temperature Stability Figure 13. Temperature Stability 1000 Cin=1uF Cout=1uF Vout=3.3V 800 Dropout Voltage(mV) Output Voltage(V) 25 0 0 Temperature( C) 0 Tj=125 C 0 Tj=85 C 600 0 Tj=25 C 400 0 Tj=-40 C 200 0 0 100 200 300 400 500 600 Loading Current(mA) Figure 14. Dropout Voltage vs. Loading Current 6/9 Advanced Power Electronics Corp. APE8805 Typical Performance Curves (Continued) VIN=4V IOUT= 1mA to150mA VIN=4V IOUT=1mA to 150mA VOUT=3.3V CIN=1uF COUT=1uF VOUT=3.3V CIN=1uF COUT=4.7uF Figure 15. Load Transition Response VIN=3V to 4V IOUT=10mA VOUT= 1.8V CIN=1uF COUT=1uF Figure 17. Line Transition Response Figure 16. Load Transition Response VIN=3V to 4V IOUT=10mA VOUT= 1.8V CIN=1uF COUT=4.7uF Figure 18. Line Transition Response 7/9 Advanced Power Electronics Corp. APE8805 Outline Information SOT-23 Package (Unit: mm) A DIMENSION IN MILLIMETER MIN NOM MAX 1.00 1.10 1.30 A1 0.00 --- 0.10 A2 0.70 0.80 0.90 0.50 SYMBOLS UNIT b 0.35 0.40 C 0.10 0.15 0.25 D 2.70 2.90 3.10 E 1.40 1.60 1.80 e --- 1.90(TYP) --- H 2.60 2.80 3.00 L 0.37 --- --- θ1 1º 5º 9º Note 1：Package Body Sizes Exclude Mold Flash Protrusions or Gate Burrs. Note 2：Tolerance ± 0.1000 mm(4mil) Unless Otherwise Specified. Note 3：Coplanarity：0.1000 mm Note 4：Dimension L Is Measured in Gage plane. SOT-89 Package (Unit: mm) A DIMENSION IN MILLIMETER MIN NOM MAX 1.40 1.50 1.60 L 0.89 1.04 1.20 SYMBOLS UNIT b 0.36 0.42 0.48 b1 0.41 0.47 0.53 C 0.38 0.40 0.43 D 4.40 4.50 4.60 D1 1.40 1.60 1.75 HE --- --- 4.25 E 2.40 2.50 2.60 e 2.90 3.00 3.10 H 0.35 0.40 0.45 S 0.65 0.75 0.85 e1 1.40 1.50 1.60 8/9 Advanced Power Electronics Corp. APE8805 SOT-223 Package (Unit: mm) A DIMENSION IN MILLIMETER MIN NOM MAX 1.55 1.80 A1 0.02 0.12 B 0.60 0.80 B1 2.90 3.10 c 0.24 0.32 D 6.30 6.70 E 3.30 3.70 SYMBOLS UNIT e 2.30 BSC e1 H 4.60 BSC 6.70 7.30 L 0.90 MIN L2 0.06 BSC α 0º 10 º Life Support Policy APEC’s products are not authorized for use as critical components in life support devices or other medical systems. 9/9