Advanced Power Electronics Corp. APE8800 300mA LOW DROPOUT LINEAR REGULATOR FEATURES DESCRIPTIOON Low Dropout Voltage of 250mV at 300mA The APE8800 series are low dropout, positive linear regulators with very low quiescent current. The APE8800 can supply 300mA output current with a low dropout voltage at about 250mV. The APE8800 regulator is able to operate with output capacitors as small as 1 µ F for stability. Other than the current limit protection APE8800 also offers on chip thermal shutdown feature providing protection against overload or any condition when the ambient temperature exceeds the junction temperature. The APE8800 series are offering three different fixed output voltage types including 1.5V, 1.8V, 2.5V, 2.8V, 3V, 3.3 & 3.6 volt. The APE8800 series are available in low-profile, space-saving 3-lead SOT-23 and SOT-89 packages. Guaranteed 300mA Output Current Very Low Quiescent Current at 30µA ±2% Output Voltage Accuracy Needs Only 1µF Capacitor for Stability Thermal Shutdown Protection Current Limit Protection Low-ESR Ceramic Capacitor for Output Stability Tiny Package: SOT-23, SOT-89 RoHS Compliant & Halogen Free APPLICATIONS DVD/CD-ROMs, CD/RWs Wireless Devices LCD Modules Battery Power Systems Card Readers XDSL Routers TYPICAL APPLICATION VIN V IN APE8800 VOUT V OUT GND 1uF 1uF C IN COUT Figure 1. Typical Application Circuit of APE8800 Note：To prevent oscillation, it is recommended to use minimum 1µF X7R or X5R dielectric capacitors if ceramics are used as input/output capacitors. ORDERING / PACKAGE INFORMATION (Top View) SOT-23 APE8800X - X (Top View) SOT-89(G) (Top View) SOT-89(GR) VIN Package Type N : SOT-23 G : SOT-89 GR : SOT-89 3 Output Voltage 15 : 1.5V 18 : 1.8V 25 : 2.5V 28 : 2.8V ; 30 : 3.0V ; 33 : 3.3V ; 36 : 3.6V Data and specifications subject to change without notice 1 GND 2 VOUT 1 2 3 GND VIN VOUT 1 2 3 VOUT GND VIN 1 201301047 Advanced Power Electronics Corp. APE8800 ABSOLUTE MAXIMUM RATINGS Supply Input Voltage (VIN) ------------------------------- 6V Power Dissipation -----------------------------------------SOT-23 -------- 0.4W SOT-89 -------- 0.57W Storage Temperature Range (T stg) --------------------- -65°C To 150°C Maximum Junction Temperature (TJ) ----------------- 150°C Lead Temperature (Soldering, 10sec, T LEAD) ------- 260°C Thermal Resistance Junction to Ambient (R thja) SOT-23 -------- 250oC/W SOT-89 -------- 175oC/W 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 (T J) ------- -40 to 125oC Ambient Temperature (T A) ------------------------------ -40 to 125oC ELECTRICAL SPECIFICATIONS ( VIN=VOUT+1V or VIN=2.8V whichever is greater, CIN=1µF, COUT=1µF, TA=25 ºC, unless otherwise specified) Parameter SYM Output Voltage Accuracy ∆VOUT Current Limit Quiescent Current ILIMIT IQ TEST CONDITION IO=1mA RLoad=1Ω IO= 0mA IO=300mA MIN TYP MAX UNITS -2 - 2 % 300 - - mA µA - 30 55 1.2V ≦ VOUT ≦ 2.0V - 1100 - 2.0V < VOUT ≦ 2.8V - 350 - 2.8V < VOUT ≦ 4.5V Dropout Voltage (Note 1) VDROP - 250 - Line Regulation ∆VLINE IO=1mA, VIN=VOUT +1V or 5V - 1 5 mV Load Regulation (Note 2) ∆VLOAD IO=0mA to 300mA - 6 20 mV Ripple Rejection PSRR - 60 - dB - 50 - ppm/ oC - 160 - o - o Temperature Coefficient Thermal Shutdown Temperature Thermal Shutdown Hysteresis TC VIN=VOUT+1V COUT=1uF, fRIPPLE = 120Hz IOUT = 1mA, VIN = 5V TSD ∆TSD - 25 mV C C Note 1：The dropout voltage is defined as V IN-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 300mA. 2 Advanced Power Electronics Corp. APE8800 PIN DESCRIPTIONS PIN SYMBOL VIN PIN DESCRIPTION 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 from oscillation. VOUT The APE8800 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 BLOCK DIAGRAM VIN RSEN VOUT PMOS Current Limit _ Error Amp R1 + Thermal Shutdown Vref 1.2V R2 GND Figure 2. Block Diagram of APE8800 3 Advanced Power Electronics Corp. APE8800 APPLICATION INFORMATION The APE8800 series are low dropout linear regulators that could provide 300mA output current at dropout voltage about 300mV. Besides, current limit and on chip thermal shutdown features provide protection against any combination of overload or ambient temperature that could exceed junction temperature. Output & Input Capacitor The APE8800 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 to 50mΩ ESR range betw- een device outputs to ground for transient stability. The APE8800 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 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. Protection Features In order to prevent overloading or thermal cond- ition from damaging the device, APE8800 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. Thermal Consideration The power handling capability of the device will be limited by maximum operation junction temperature (125°C). 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 Advanced Power Electronics Corp. APE8800 TYPICAL PERFORMANCE CHARACTERISTICS Quiescent Current vs. Input Voltage Quiescent Current vs. Input Voltage 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 30 45 40 35 30 3.0 3.5 4.0 4.5 5.0 5.5 6.0 3.0 3.5 4.0 Input Voltage(V) Current Limit vs. Input Voltage 6.0 Vout=3.3V Cin=1uF Cout=1uF 800 Current Limit(mA) 700 Current Limit(mA) 5.5 Current Limit vs. Input Voltage Vout=1.8V Cin=1uF Cout=1uF 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) Current Limit vs. Temperature Current Limit vs. Temperature 850 850 Vin=5V Vout=1.8V Cin=1uF Cout=1uF 800 Current Limit(mA) Current Limit(mA) 5.0 850 650 800 4.5 Input Voltage(V) 750 700 Vin=5V Vout=3.3V Cin=1uF Cout=1uF 750 700 650 650 -25 0 25 50 0 Temperature( C) 75 100 125 -25 0 25 50 75 100 125 0 Temperature( C) 5 Advanced Power Electronics Corp. APE8800 TYPICAL PERFORMANCE CHARACTERISTICS Quiescent Current vs. Temperature Quiescent Current vs. Temperature 60 Vin=5V Vout=1.8V Cin=1uF Cout=1uF 50 Quiescent Current(uA) Quiescent Current(uA) 60 40 30 Vin=5V Vout=3.3V Cin=1uF Cout=1uF 50 40 30 20 20 -25 0 25 50 75 100 -50 125 -25 0 50 75 100 125 Temperature( C) Temperature Stability Temperature Stability 3.40 1.90 Vin=5V Cin=1uF Cout=1uF Vin=5V Cin=1uF Cout=1uF 3.35 1.85 Output Voltage(V) Output Voltage(V) 25 0 0 Temperature( C) 1.80 1.75 1.70 3.30 3.25 3.20 -25 0 25 50 75 100 125 0 -25 0 25 50 75 100 125 0 Temperature( C) Temperature( C) Dropout Voltage vs. Loading Current 500 Cin=1uF Cout=1uF Vout=3.3V 400 Dropout Voltage(V) 0 Tj=125 C 300 0 Tj=85 C 0 Tj=25 C 200 0 Tj=-40 C 100 0 0 50 100 150 200 250 300 Loading Current(mA) 6 Advanced Power Electronics Corp. APE8800 TYPICAL PERFORMANCE CHARACTERISTICS Load Transient Response (VIN=4V, IOUT=1mA to 150mA, VOUT=3.3V, CIN=1uF, COUT=1uF ) Line Transient Response (VIN=3V to 4V, IOUT=10mA, VOUT=1.8V, CIN=1uF, COUT=1uF ) Load Transient Response (VIN=4V, IOUT=1mA to 150mA, VOUT=3.3V, CIN=1uF, COUT=4.7uF ) Line Transient Response (VIN=3V to 4V, IOUT=10mA, VOUT= 1.8V, CIN=1uF, COUT=4.7uF ) 7 Advanced Power Electronics Corp. APE8800 MARKING INFORMATION SOT-23 Part Number Output Voltage : Output Voltage VOUT Code 1.5V A 1.8V B 2.5V C 2.8V D 3.0V E 3.3V F 3.6V H R5&SS Date Code : SS SOT-89 880X& YWWS Part Number : 8800 : APE8800G 880R : APE8800GR Output Voltage : Date Code (YWWS) Y : Year WW : Week S : Sequence Output Voltage VOUT Code 1.5V A 1.8V B 2.5V C 2.8V D 3.0V E 3.3V F 3.6V H 8