Advanced Power Electronics Corp. APE1913 1.2MHz, HIGH VOLTAGE, BOOST CONVERTER FEATURES DESCRIPTION Input Voltage：2.6V to 5.5V Adjustable Output Voltage Range up to 27V 1.2MHz Fixed Switching Frequency Internal Soft-Start Function Current Limit and Thermal Shutdown Protection Under Voltage Lockout < 1µA Shutdown Current Available in the TSOT-23-5L Package The APE1913 is a current mode step up converter intended for small, low power applications. The converter input voltage ranging from 2.6V to 5.5V. The Output voltage can be set up to 27V. The frequency is 1.2MHz allows the use of small external inductors and capacitors and provides fast transient response. Internal soft start results in small inrush current and extends battery life. Internal power MOSFET with very low RDS (ON) provides high efficiency. The APE1913 automatically transits from PWM to PFM during light load condition further increasing efficiency. The converter also provides protection functions such as under-voltage lockout, current limit and thermal shutdown. The APE1913 is available in TSOT-23-5L package. TYPICAL APPLICATION VIN=5V ON R4 1M C1 10uF D1 B240A L1 4.7uH APE1913 U1 VCC EN R2 470K SW FB GND OFF VOUT=12V R3 C3 C2 4.7uF R1 54K 1nF R2 VOUT = 1.238V X (1 + ------- ) R1 R2 Suggest 390K~820K VIN VOUT R3 2.6~3.6V 5V 120KΩ 2.6~5.3V 7V 82KΩ 2.6~5.5V 7.5~27V 0Ω PACKAGE & ORDERING INFORMATION (Top View) APE1913X Package Type TY5 : TSOT-23-5L SW 1 GND 2 FB 3 5 VCC 4 EN TSOT-23-5L Data and specifications subject to change without notice 1 201203211 Advanced Power Electronics Corp. APE1913 ABSOLUTE MAXIMUM RATINGS VCC Pin Voltage (VCC) ------------------------------------ GND - 0.3V to GND + 6.5V Feedback Pin Voltage (VFB) ----------------------------- GND - 0.3 to VCC + 0.3 EN Pin Voltage (VEN) -------------------------------------- GND - 0.3 to VCC + 0.3 Switch Pin Voltage (VSW) --------------------------------- 30V Power Dissipation (PD) ----------------------------------- ( TJ-TA ) / Rthja W Storage Temperature Range (T ST) -------------------- -40°C to +150°C Operating Junction Temperature Range (T OP) ----- -40°C to +125°C Thermal Resistance from Junction to Case(Rth JC) 110°C/W Thermal Resistance from Junction to Ambient(RthJA) 250°C/W Note. Rthja is measured with the PCB copper area of approximately 1 in2(Multi-layer). ELECTRICAL SPECIFICATIONS (VCC=5V, VOUT=12V, TA=25°C, unless otherwise specified) Parameter SYM Input Voltage Range VCC Under Voltage Lockout UVLO TEST CONDITION Rising UVLO Hysteresis MIN TYP MAX UNITS 2.6 - 5.5 V - 2.35 2.6 V - -130 - mV 3 - 27 V Step-Up Voltage Adjust Range VOUT Operating Quiescent Current ICCQ IOUT= 0mA, VFB =1.5V - 150 250 μA Shutdown Current ISD VEN=0V - 0.1 1 μA Feedback Voltage VFB FB Input Leakage Current IFB-LKG VFB = 1.3V 1.213 1.238 1.263 V -100 0.01 100 nA Line Regulation VIN = 2.5 to 5.5V, IOUT = 20mA - 0.2 - % Load Regulation VIN = 5V, IOUT = 1mA to 400mA - 0.2 - % Switching Frequency FOSC 900 1200 1500 KHz Maximum Duty DMAX 82 87 - % Duty=50% - 1.9 - A VCC=3V, ISW=1A - 650 - VCC=5V, ISW=1A - 500 - VLX = 27V, VFB =1.5V - - 1 µA 1 - - V N-channel MOSFET Current Limit MOSFET On-resistance (Note1) ILIM RDS(on) SW Leakage Current ISWL EN High-level Input Voltage VIH mΩ EN Low-level Input Voltage VIL - - 0.4 V EN Hysteresis Hys - 200 - mV - 0.01 0.1 μA EN Input Leakage Current IEN-LKG VEN=GND or VCC Thermal Shutdown TDS - 150 - Thermal Shutdown Hysteresis TSH - 35 - °C Note1: Guaranteed by design. 2 Advanced Power Electronics Corp. APE1913 PIN DESCRIPTIONS PIN SYMBOL VCC PIN DESCRIPITON Input Supply Pin. Must be locally bypassed. Power Switch Output. SW is the drain of the internal MOSFET switch. Connect the power inductor and output rectifier to SW. SW SW can swing between GND and 27V. Feedback Input. FB voltage is 1.238V. Connect a resistor divider to FB. FB Regulator On/Off Control Input. A high input at EN turns on the converter, and a low input turns it off. When not used, connect EN to the input source for automatic EN startup. The EN pin cannot be left floating. Ground pin GND BLOCK DIAGRAM EN VCC UVLO Soft Start Vref 1.238V Enable/ Disable Thermal Shutdown Summing Comparator FB Error Amplifier SW Control and Driver Logic N-MOS Oscillator 1.2MHz Slope Compensation Current Sense GND 3 Advanced Power Electronics Corp. APE1913 APPLICATION DESCRIPTION Setting the Output Voltage Application circuit item shows the basic application circuit with APE1913 adjustable output version. The external resistor sets the output voltage according to the following equation: R2 VOUT = 1.238V × (1+ ) R1 For most applications, R2 is a suggested a value by 390K~820K Ω . Place the resistor-divider as close to the IC as possible to reduce the noise sensitivity. Under Voltage Lockout (UVLO) To avoid mis-operation of the device at low input voltages an under voltage lockout is included that disables the device, if the input voltage falls below (2.35V-130mV). Input Capacitor Selection The input capacitor reduces the surge current drawn from the input and switching noise from the device. The input capacitor impedance at the switching frequency shall be less than input source impedance to prevent high frequency switching current passing to the input. A low ESR input capacitor sized for maximum RMS current must be used. Ceramic capacitors with X5R or X7R dielectrics are highly recommended because of their low ESR and small temperature coefficients. A 10 µ F ceramic capacitor for most applications is sufficient. For a lower output power requirement application, this value can be decreased. Output Capacitor Selection The output capacitor is required to keep the output voltage ripple small and to ensure regulation loop stability. The output capacitor must have low impedance at the switching frequency. Ceramic capacitors with X5R or X7R dielectrics are recommended due to their low ESR and high ripple current. A 4.7uF ceramic capacitors works for most of the applications. Higher capacitor values can be used to improve the load transient response. Layout Guide VCC C1's ground must be as closer to IC's GND pin as possible R4 EN 5 4 C3 APE1913 R1 C1 1 VIN SW should be connected to Inductor by wide and short trace, keep sensitive components away from this trace L1 2 3 SW GND FB R3 R2 C2 VOUT C2's ground must be as closer to IC's GND pin as possible D1 4 Advanced Power Electronics Corp. APE1913 TYPICAL PERFORMANCE CHARACTERISTICS VIN V.S Frequency 2 250 1.8 1.6 200 1.4 Frequency (MHz) ICCQ (uA) VIN V.S ICCQ 300 150 100 1.2 1 0.8 0.6 0.4 0.2 50 VFB=1.5V 0 0 2.5 3 3.5 4 4.5 5 5.5 2.5 3 3.5 VIN (V) 4 4.5 5 5.5 VIN (V) IOUT V.S Feedback Voltage VIN V.S Feedback Voltage 1.27 1.28 1.27 1.26 1.25 1.25 VFB (V) VFB (V) 1.26 1.24 1.23 VIN=5V 1.24 VIN=3.3V 1.23 1.22 1.22 1.21 VOUT=12V 1.2 1.21 2.5 3 3.5 4 4.5 5 5.5 0 50 100 150 200 250 300 350 400 450 VIN (V) IOUT (mA) Temperature V.S Feedback Voltage 2 1.27 1.8 1.6 Frequency (MHz) 1.26 VFB (V) Temperature V.S Frequency 1.28 1.25 1.24 1.23 1.22 VIN=5V, VOUT=12V IOUT=10mA 1.21 1.2 1.4 1.2 1 0.8 0.6 0.4 0.2 VIN=5V 0 -40℃ -20℃ 0℃ 25℃ 50℃ Temperature 75℃ 100℃ 125℃ -40℃ -20℃ 0℃ 25℃ 50℃ 75℃ 100℃ 125℃ Temperature 5 Advanced Power Electronics Corp. APE1913 TYPICAL PERFORMANCE CHARACTERISTICS Temperature V.S Maximum Duty 90 1.8 89 1.6 88 Maximum Duty (%) EN Threshold Voltage (V) Temperature V.S EN Threshold Voltage 2 1.4 1.2 ENH 1 0.8 0.6 ENL 0.4 0.2 87 86 85 84 83 82 81 VIN=5V 0 VIN=5V 80 -40℃ -20℃ 0℃ 25℃ 50℃ 75℃ 100℃ 125℃ -40℃ -20℃ 0℃ 25℃ Temperature Temperature V.S UVLO 75℃ 100℃ 125℃ Duty V.S Current Limit 3 3 2.8 2.5 VIN=5V 2.6 2 Rising Current Limit (A) UVLO (V) 50℃ Temperature 2.4 2.2 2 Falling VIN=3.3V 1.5 1 0.5 1.8 0 1.6 -40℃ -20℃ 0℃ 25℃ 50℃ 30% 75℃ 100℃ 125℃ 40% 50% Temperature 70% Efficiency Test Efficiency Test 100 100 90 90 80 70 80 Efficiency (%) Efficiency (%) 60% Duty 60 50 40 VIN=5V VIN=3.3V 70 60 50 40 30 30 20 20 VIN=3.3V VOUT=5V 10 10 0 VOUT=12V 0 0 100 200 300 400 IOUT (mA) 500 600 700 0 100 200 300 400 500 IOUT (mA) 6 Advanced Power Electronics Corp. APE1913 TYPICAL PERFORMANCE CHARACTERISTICS Load Transient Load Transient Power ON Enable ON Power ON Enable ON 7 Advanced Power Electronics Corp. APE1913 MARKING INFORMATION TSOT-23-5L BAYWS Part Number : BA Week: A~Z : 01~26 a~z : 27~52 ID Code : Internal Year : A = 2010 1 = 2011 ： ： 8 Advanced Power Electronics Corp. APE1913 PACKAGE OUTLINES θ D L E1 E L1 R b e y A1 A A2 e1 C L2 Dimensions in Millimeters Min. Nom. Max. A 1.1 A1 0 0.1 A2 0.7 0.9 1 b 0.3 0.4 0.5 C 0.08 0.14 0.2 D 2.8 2.9 3 E 2.6 2.8 3 E1 1.5 1.6 1.7 e 0.95 BSC. e1 1.90 BSC. L 0.3 0.45 0.6 L1 0.60 REF. L2 0.25 BSC. y 0.1 R 0.1 θ 0o 8o JECED outline: MO-193 AB Symbol Dimensions in Inches Min. Nom. Max. 0.043 0 0.004 0.028 0.035 0.039 0.012 0.016 0.02 0.003 0.006 0.008 0.11 0.114 0.118 0.102 0.11 0.118 0.059 0.063 0.067 0.037 BSC. 0.075 BSC. 0.012 0.018 0.024 0.024 REF. 0.010 BSC. 0.004 0.004 0o 8o