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| Advanced Power Electronics Corp. APE8805 600mA LOW DROPOUT LINEAR REGULATOR Features Low Dropout Voltage of 600mV at 600mA Guaranteed 600mA Output Current Very Low Quiescent Current at about 30uA Max. 2%Output Accuracy Needs Only 1F Capacitor for Stability Thermal Shutdown Protection Current Limit Protection Low-ESR Ceramic Capacitor for Output Stability RoHS Compliant Description 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 1F 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 APE8805 1F CIN 1F COUT VOUT GND Figure 1. Typical Application Circuit of APE8805 NoteTo prevent oscillation, it is recommended to use minimum 1F 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. Ordering Information APE8805 - Output Voltage 18: 1.8V 25: 2.5V 33: 3.3V Package Type N: SOT-23 G: SOT-89 GR: SOT-89 K: SOT-223 APE8805 Pin Assignments SOT-23(N) 3 1 2 TOP VIEW 1. GND 2. VOUT 3. VIN SOT-89(G) TOP VIEW 1. GND 2. VIN 3. VOUT 1 2 3 SOT-89(GR) TOP VIEW 1. VOUT 2. GND 3. VIN 1 2 3 NoteThe devices are available in fixed voltages range of SOT-223(K) 1.8V , 2.5V& 3.3V. Please consult APEC sales office or authorized distributor for availability of special output voltages. 1 2 3 TOP VIEW 1. VOUT 2. GND 3. VIN Figure 2. Pin Assignment of APE8805 Absolute Maximum Ratings Parameter Supply Input Voltage Maximum Junction Temperature Power Dissipation SOT-23 Power Dissipation SOT-89 Power Dissipation SOT-223 Package Thermal Resistance SOT-23 Package Thermal Resistance SOT-89 Package Thermal Resistance SOT-223 Storage Temperature Range Lead Temperature (Soldering, 10 sec.) Symbol VIN TJ PD PD PD JA JA JA TS TLEAD -65 Min Max 6 150 0.4 0.57 0.74 250 175 135 150 260 Unit V C W W W C/W C/W C/W C C NoteStresses beyond those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. 2/9 Advanced Power Electronics Corp. Recommended Operating Conditions Parameter Input Voltage Operating Junction Temperature Range Symbol VIN TJ Min 2.8 -40 Max 5.5 125 APE8805 Unit V C Electrical Characteristics (VIN=VOUT+1V or VIN=2.8V whichever is greater, CIN=1F, COUT=1F, TA=25 C, unless otherwise specified) Parameter Output Voltage Accuracy Current Limit Quiescent Current Symbol VOUT ILIMIT IQ VDROP VLINE VLOAD PSRR TC TSD TSD IO= 1mA RLoad=1 IO= 0mA 1.2V VOUT 2.0V Dropout Voltage (Note 1) IO=600mA 2.0V < VOUT 2.8V 2.8V < VOUT 4.5V Line Regulation Load Regulation (Note 2) Ripple Rejection Temperature Coefficient Thermal Shutdown Temperature Thermal Shutdown Hysteresis IO=1mA, VIN=VOUT +1V to 5V IO=0mA to 600mA VIN=VOUT+1V fRIPPLE = 120Hz, COUT = 1F IOUT = 1mA, VIN = 5V Conditions Min -2 600 30 1400 800 600 1 13 60 50 160 25 5 50 mV mV dB ppm/ C C C mV 50 Typ Max +2 Unit % mA A Note 1The dropout voltage is defined as VIN-VOUT, which is measured when VOUT drop about 100mV. Note 2Regulation 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 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 1F to 10F 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 1F 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 VOUT GND 3/9 Advanced Power Electronics Corp. Block Diagram VIN RSEN PMOS APE8805 VOUT Current Limit Error Amp + R1 _ Thermal Shutdown Vref 1.2V R2 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 30m to 50m 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 (125C). The power dissipated by the device will be estimated by PD = IOUT x (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. Typical Performance Curves 50 APE8805 50 Quiescent Current (uA) Vout=1.8V Cin=1uF Cout=1uF Vout=3.3V Cin=1uF Cout=1uF 45 Quiescent Current (uA) 45 40 40 35 35 30 30 3.0 3.5 4.0 4.5 5.0 5.5 6.0 3.0 3.5 4.0 4.5 5.0 5.5 6.0 Input Voltage(V) Figure 4. Quiescent Current vs. Input Voltage 650 Figure 5. Quiescent Current vs. Input Voltage 850 Vout=1.8V Cin=1uF Cout=1uF 700 800 Vout=3.3V Cin=1uF Cout=1uF Current Limit(mA) 750 Current Limit(mA) 3.0 3.5 4.0 4.5 5.0 5.5 6.0 750 800 700 850 650 3.5 4.0 4.5 5.0 5.5 6.0 Input Voltage(V) Input Voltage(V) Figure 6. Current limit vs. Input Voltage 850 Figure 7. Current Limit vs. Input Voltage 850 800 Vin=5V Vout=1.8V Cin=1uF Cout=1uF 800 Vin=5V Vout=3.3V Cin=1uF Cout=1uF Current Limit(mA) Current Limit(mA) 750 750 700 700 650 -25 0 25 50 0 650 75 100 125 -25 0 25 50 0 75 100 125 Temperature( C) Temperature( C) Figure 8. Current limit vs. Temperature Figure 9. Current limit vs. Temperature 5/9 Advanced Power Electronics Corp. Typical Performance Curves (Continued) 60 60 APE8805 Quiescent Current(uA) 50 Quiescent Current(uA) Vin=5V Vout=1.8V Cin=1uF Cout=1uF 50 Vin=5V Vout=3.3V Cin=1uF Cout=1uF 40 40 30 30 20 -25 0 25 50 0 20 75 100 125 -50 -25 0 25 50 0 75 100 125 Temperature( C) Temperature( C) Figure 10. Quiescent Current vs. Temperature 1.90 Figure 11. Quiescent Current vs. Temperature 3.40 Vin=5V Cin=1uF Cout=1uF Vin=5V Cin=1uF Cout=1uF 3.35 Output Voltage(V) 1.85 1.80 Output Voltage(V) -25 0 25 50 0 3.30 1.75 3.25 1.70 75 100 125 3.20 -25 0 25 50 0 75 100 125 Temperature( C) Temperature( C) Figure 12. Temperature Stability Figure 13. Temperature Stability 1000 Cin=1uF Cout=1uF Vout=3.3V 800 Tj=125 C Tj=85 C 0 0 Dropout Voltage(mV) 600 Tj=25 C 400 0 Tj=-40 C 0 200 0 0 100 200 300 400 500 600 Loading Current(mA) Figure 14. Dropout Voltage vs. Loading Current 6/9 Advanced Power Electronics Corp. Typical Performance Curves (Continued) VIN=4V IOUT= 1mA to150mA VOUT=3.3V CIN=1uF COUT=1uF VIN=4V IOUT=1mA to 150mA VOUT=3.3V CIN=1uF COUT=4.7uF APE8805 Figure 15. Load Transition Response VIN=3V to 4V IOUT=10mA VOUT= 1.8V CIN=1uF COUT=1uF Figure 16. Load Transition Response VIN=3V to 4V IOUT=10mA VOUT= 1.8V CIN=1uF COUT=4.7uF Figure 17. Line Transition Response Figure 18. Line Transition Response 7/9 Advanced Power Electronics Corp. Outline Information SOT-23 Package (Unit: mm) SYMBOLS UNIT A A1 A2 b C D E e H L 1 APE8805 DIMENSION IN MILLIMETER MIN NOM MAX 1.00 1.10 1.30 0.00 0.70 0.35 0.10 2.70 1.40 --2.60 0.37 1 --0.80 0.40 0.15 2.90 1.60 1.90(TYP) 2.80 --5 0.10 0.90 0.50 0.25 3.10 1.80 --3.00 --9 Note 1Package Body Sizes Exclude Mold Flash Protrusions or Gate Burrs. Note 2Tolerance 0.1000 mm(4mil) Unless Otherwise Specified. Note 3Coplanarity0.1000 mm Note 4Dimension L Is Measured in Gage plane. SOT-89 Package (Unit: mm) SYMBOLS UNIT A L b b1 C D D1 HE E e H S e1 DIMENSION IN MILLIMETER MIN NOM MAX 1.40 1.50 1.60 0.89 0.36 0.41 0.38 4.40 1.40 --2.40 2.90 0.35 0.65 1.40 1.04 0.42 0.47 0.40 4.50 1.60 --2.50 3.00 0.40 0.75 1.50 1.20 0.48 0.53 0.43 4.60 1.75 4.25 2.60 3.10 0.45 0.85 1.60 8/9 Advanced Power Electronics Corp. SOT-223 Package (Unit: mm) APE8805 SYMBOLS UNIT A A1 B B1 c D E e e1 H L L2 DIMENSION IN MILLIMETER MIN NOM MAX 1.55 1.80 0.02 0.60 2.90 0.24 6.30 3.30 2.30 BSC 4.60 BSC 6.70 0.90 MIN 0.06 BSC 0 10 7.30 0.12 0.80 3.10 0.32 6.70 3.70 Life Support Policy APEC's products are not authorized for use as critical components in life support devices or other medical systems. 9/9 |
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