Advanced Power Electronics Corp. APE8800A 300mA Low Dropout Linear Regulator with Shutdown Description Features The APE8800A is a low dropout, positive linear regulator with very low quiescent current. The APE8800A can supply 300mA output current with low dropout voltage at about 250mV. The BP pin with a 10nF bypass capacitor can help reduce the output noise level. The shutdown function can provide remote control for the external signal to decide the on/off state of APE8800A. With a logic high level at SHDN pin, the device is in the on state, and vice versa. ● Low Dropout Voltage of 250mV at 300mA ● Guaranteed 300mA Output Current ● Very Low Quiescent Current at 30µA ● Max. ± 2% Output Voltage Accuracy ● Needs Only 1µF Capacitor for Stability ● Thermal Shutdown Protection ● Current Limit Protection ● Active Low Shutdown Control ● Low-ESR Ceramic Capacitor for Output Stability ● Tiny package: SOT-23-5 ● RoHS Compliant The APE8800A regulator is able to operate with output capacitors as small as 1µF for stability. Other than the current limit protection, APE8800A also offers the on chip thermal shutdown feature providing protection against overload or any condition when the ambient temperature exceeds the maximum junction temperature. The APE8800A offers high precision output voltage of ± 2%. It is available in fixed output voltages including 1.5V, 1.8V, 2.5V, 2.8V, 3.0V, and 3.3V. The APE8800A is housed in low-profile, space-saving 5-lead SOT-23-5 package. Pin Assignments 1 4 2 3 ● DSC ● Wireless Devices ● LCD Modules ● Battery Power Systems ● Card Readers ● PDA Ordering Information APE8800A-□□□ SOT-23-5 Package 5 Applications TOP VIEW 1. VIN 2. GND 3. SH DN 4. BP 5. VOUT P: Pb Free with Commercial Standard (RoHS Compliant) Package Type Y5: SOT-23-5 Output Voltage 15: 1.5V 28: 2.8V 18: 1.8V 30: 3.0V 25: 2.5V 33: 3.3V Figure 1. Pin Assignment of APE8800A SOT-23-5 Marking Part Number APE8800A-15Y5P Data and specifications subject to change without notice. Product Part Number Code Fc APE8800A-28Y5P Product Code Fe APE8800A-18Y5P Fb APE8800A-30Y5P Ff APE8800A-25Y5P Fd APE8800A-33Y5P Fh 200214077-1/7 Advanced Power Electronics Corp. APE8800A Typical Application Circuit VIN VIN CIN 1µF APE8800A GND VSHDN VOUT VOUT SHDN COUT 1µF BP CBP 10nF Figure 2. Typical Application Circuit of APE8800A Note：To prevent oscillation, it is recommended to use minimum 1µF X7R or X5R dielectric capacitors if ceramics are used as input/output capacitors. Functional Pin Description Pin Name Pin Function VIN 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. VOUT The output supplies power to loads. The output capacitor is required to prevent output voltage from oscillation. The APE8800A is stable with an output capacitor 1µF or greater. The larger output capacitor will be required for application with larger load transients. The large output capacitor could reduce output noise, improve stability, and PSRR. GND Common ground pin BP SHDN Reference Noise Bypass ( the Bypass Capacitor >= 1nF ) Chip Enable (Active High) Block Diagram RSEN VIN VOUT PMOS Current Limit SHDN Power Shutdown Thermal Shutdown _ Error Amp R1 + Vref 1.2V BP R2 GND Figure 3. Block Diagram of APE8800A 2/7 Advanced Power Electronics Corp. APE8800A Absolute Maximum Ratings ● Supply Input Voltage (VIN)----------------------------------------------------------------------------------- + 6V ● Maximum Junction Temperature (TJ)-------------------------------------------------------------------- + 150℃ ● Power Dissipation SOT-23 (PD)--------------------------------------------------------------------------- + 0.4W ● Package Thermal Resistance SOT-23 (θJA)------------------------------------------------------------ + 250℃/W ● Storage Temperature Range (TS)------------------------------------------------------------------------- - 65 to + 150℃ ● Lead Temperature (Soldering, 10 sec.) (TLEAD)-------------------------------------------------------- + 260℃ Note：Stresses beyond those listed under “Absolute Maximum Ratings" may cause permanent damage to the device. Recommended Operating Conditions ● Input Voltage (VIN)-------------------------------------------------------------------------------------------- + 2.8 to + 5.5V ● Operating Junction Temperature Range (TJ)---------------------------------------------------------- - 40 to + 125℃ ● Ambient Temperature (TA)---------------------------------------------------------------------------------- -40 to 85oC Electrical Characteristics (VIN=VOUT+1V or VIN=2.8V whichever is greater, SHDN pin connected to VIN , CIN=1µF, COUT=1µF, TA=25 ºC, unless otherwise specified) Parameter Current Limit Quiescent Current Standby Current Symbol ILIMIT IQ ISTBY Conditions Min RLoad=1Ω 300 IO= 0mA Typ ∆VOUT IO= 1mA Dropout Voltage (Note 1) VDROP IO=300mA Unit mA 30 VIN=2.8~5V, Output Off Output Voltage Accuracy Max -2 1.5V ≤ VOUT ≤ 2.0V 1100 2.0V < VOUT ≤ 2.8V 350 2.8V < VOUT ≤ 4.5V 250 50 µA 0.1 µA +2 % mV Line Regulation ∆VLINE IO=1mA, VIN=VOUT +1V to 5V 1 5 mV Load Regulation (Note 2) ∆VLOAD IO=0mA to 300mA 6 20 mV Ripple Rejection PSRR VIN=VOUT+1V fRIPPLE = 120Hz, COUT = 1µF 60 Output Noise ∆n CBP=10nF, f=1KHz, VIN=5V 0.4 Temperature Coefficient TC IOUT = 1mA, VIN = 5V 50 ppm/ ºC TSD 160 ºC Thermal Shutdown Hysteresis ∆TSD 25 Shutdown Pin Current I SHDN Noise Bypass Terminal Voltage VREF Thermal Shutdown Temperature Shutdown Pin Voltage (ON) V SHDN (ON) Shutdown Pin Voltage (OFF) V SHDN (OFF) Shutdown Exit Delay Time ∆T dB µV Hz ºC 0.1 1.23 V 1.4 V 0.4 CBP=0.1uF, COUT=1uF, IOUT=30mA µA 300 V µs Note 1：The dropout voltage is defined as VIN-VOUT, which is measured when VOUT drops 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 300mA. 3/7 Advanced Power Electronics Corp. APE8800A Application Information The APE8800A is a low dropout linear regulator that could provide 300mA output current at dropout voltage about 250mV. Current limit and on chip thermal shutdown features provide protection against any combination of overload or ambient temperature that could exceed maximum junction temperature. 1. Output and Input Capacitor The APE8800A 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 improves transient response for larger current changes. The capacitor types (aluminum, ceramic, and tantalum) 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 to 50mΩ ESR range between device outputs and ground for stability. The APE8800A is designed to be stable with low ESR ceramic capacitors and higher values of capacitors and ESR could improve output stability. The ESR of output capacitor is very important because 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 condition from damaging the device, APE8800A 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 temperature. 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. Shutdown Operation The APE8800A is shutdown by pulling the SHDN input low, and turned on by driving the SHDN high. If this function is not used, the SHDN input should be tied to VIN to keep the regulator on at all times (the SHDN must not be left floating). 4/7 Advanced Power Electronics Corp. APE8800A 50 850 45 800 Current Limit(mA) Quiescent Current(uA) Typical Performance Curves 40 35 750 700 650 30 3.0 3.5 4.0 4.5 5.0 5.5 3.5 6.0 4.0 4.5 Figure 4. Quiescent Current vs. Input Voltage 5.5 6.0 Figure 5. Current limit vs. Input Voltage 60 Quiescent Current(uA) 850 Current Limit (mA) 5.0 Input Voltage(v) Input Voltage(v) 800 750 700 50 40 30 20 650 -40 -20 0 20 40 60 80 100 -40 120 -20 0 20 40 60 80 100 120 o o Temperaure( C) Temperature( C) Figure 6. Current limit vs. Temperature Figure 7. Quiescent Current vs. Temperature 500 o -40 C o 25 C o 85 C o 125 C 0.999 Dropout Voltage(mV) Normalized Output Voltage 1.000 0.998 0.997 0.996 0.995 0.994 0.993 400 300 200 100 0.992 0.991 0.990 -25 0 25 50 75 100 o Temperature( C) Figure 8. Output Voltage vs. Temperature 125 0 0 50 100 150 200 250 300 Output Current (mA) Figure 9. Dropout Voltage vs. Temperature 5/7 Advanced Power Electronics Corp. APE8800A Typical Performance Curves (Continued) VIN=5V IOUT=150mA CIN=1uF COUT=1uF VOUT VOUT SHDN IOUT Figure 10. Shutdown Function Figure 11. Load Transient Response VIN=5V IOUT=1mA CIN=1uF COUT=1uF VIN=4~5V IOUT=10mA CIN=1uF COUT=1uF VOUT VIN VOUT SHDN Figure 12. Line Transient Response Figure 13. Shutdown Exit Delay Time 6/7 Advanced Power Electronics Corp. APE8800A Outline Information SOT-23-5 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 b 0.35 0.40 0.50 C 0.10 0.15 0.25 SYMBOLS UNIT D 2.70 2.90 3.10 E 1.50 1.60 1.80 e --- 1.90(TYP) --- H 2.60 2.80 3.00 --- L 0.37 --- θ1 1º 5º 9º e1 --- 0.95(TYP) --- 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. ● 7/7