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| Data Sheet 150kHz 3A BUCK DC-DC CONVERTER General Description The AP3003 series of regulators are fixed frequency PWM buck (step-down) DC/DC converter, capable of driving a 3A load with excellent line and load regulation. These regulators include internal frequency compensation and a fixed frequency oscillator so that they are easy to use. A system adopting AP3003 requires a minimum number of external components to work. A standard series of inductors, optimized for use with the AP3003 series, are available from several manufacturers. This feature greatly simplifies the design of switch-mode power supplies. These ICs are available in TO-220-5 and TO-263-5 packages. AP3003 Features * * * * * * * * * * 3.3V, 5V, 12V Fixed (4% Tolerance) and Adjustable (3% Tolerance) Output Versions Guaranteed 3A Output Load Current 150kHz Fixed Frequency Internal Oscillator Input Voltage Range up to 32V Requires only 4 external components High Efficiency up to 90% Excellent Line and Load Regulation TTL Shutdown Capability Low Power Standby Mode, IQ Typically 80A Built-in Current Limit Protection and Thermal Shutdown Circuit Applications * * * * LCD Monitor and LCD TV On-Card DC-DC Converter DVD Recorder PDP TO-220-5 TO-263-5 Figure 1. Package Types of AP3003 Feb. 2007 Rev. 1. 1 1 BCD Semiconductor Manufacturing Limited Data Sheet 150kHz 3A BUCK DC-DC CONVERTER Pin Configuration T Package (TO-220-5) S Package (TO-263-5) AP3003 5 4 3 2 1 ON/OFF FEEDBACK GND OUTPUT VIN Metal Tab GND 5 4 3 2 1 ON/OFF FEEDBACK GND OUTPUT VIN Metal Tab GND Figure 2. Pin Configuration of AP3003 (Top View) Pin Description Pin Number 1 2 3 4 Pin Name VIN OUTPUT GND FEEDBACK Unregulated input voltage Switch driver output Ground Feedback Pin. For fixed version, connect it to system output. For adjustable version, connect it with an external resistor and capacitor feedback network to program the system output voltage The TTL logic compatible input to control the regulator on or off Function 5 ON/OFF Feb. 2007 Rev. 1. 1 2 BCD Semiconductor Manufacturing Limited Data Sheet 150kHz 3A BUCK DC-DC CONVERTER Functional Block Diagram ON/OFF 5 1 1.23V REFERENCE 2.5V REGULATOR 220 mV START UP 200 mV 4.4 AP3003 VIN + Bias Current 2.5V COMP Frequency Shift 150KHz OSC _ _ COMP + FEEDBACK 4 1:100 + R2 + _ EA _ COMP LATCH DRIVER & INV 2 THERMAL SHUTDOWN 3 OUTPUT GND R1 For 3.3V R1=2.49k 5V R1=2.49k 12V R1=2.49k ADJ R1=Open R2=4.18k R2=7.57k R2=21.8k R2=0 Figure 3. Functional Block Diagram of AP3003 Feb. 2007 Rev. 1. 1 3 BCD Semiconductor Manufacturing Limited Data Sheet 150kHz 3A BUCK DC-DC CONVERTER Ordering Information AP3003 E1: Lead Free Circuit Type TR: Tape and Reel Blank: Tube Package T: TO-220-5 S: TO-263-5 ADJ: Adjustable Output 3.3: Fixed Output 3.3V 5.0: Fixed Output 5.0V 12: Fixed Output 12V AP3003 Package Temperature Range Part Number Lead Free AP3003T-ADJE1 AP3003T-3.3E1 AP3003T-5.0E1 AP3003T-12E1 AP3003S-ADJE1 AP3003S-ADJTRE1 AP3003S-3.3E1 AP3003S-3.3TRE1 AP3003S-5.0E1 AP3003S-5.0TRE1 AP3003S-12E1 AP3003S-12TRE1 Marking ID Lead Free AP3003T-ADJE1 AP3003T-3.3E1 AP3003T-5.0E1 AP3003T-12E1 AP3003S-ADJE1 AP3003S-ADJE1 AP3003S-3.3E1 AP3003S-3.3E1 AP3003S-5.0E1 AP3003S-5.0E1 AP3003S-12E1 AP3003S-12E1 Packing Type Tube Tube Tube Tube Tube Tape & Reel Tube Tape & Reel Tube Tape & Reel Tube Tape & Reel TO-220-5 -40 to 85oC TO-263-5 -40 to 85oC BCD Semiconductor's Pb-free products, as designated with "E1" suffix in the part number, are RoHS compliant. Feb. 2007 Rev. 1. 1 4 BCD Semiconductor Manufacturing Limited Data Sheet 150kHz 3A BUCK DC-DC CONVERTER Absolute Maximum Ratings (Note 1) Parameter Input Voltage ON/OFF Pin Voltage Feedback Pin Voltage Operating Junction Temperature Thermal Resistance (Junction to Ambient, No Heatsink) Lead Temperature (Soldering, 10sec) Storage Temperature Range Symbol VIN VON/OFF VFB TJ Value 40 40 40 150 Unit V V V o AP3003 C TO-220-5 RJA 60 260 -65 to 150 oC/W TO-263-5 TLEAD TSTG oC oC Note 1: Stresses greater than those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under "Recommended Operating Conditions" is not implied. Exposure to "Absolute Maximum Ratings" for extended periods may affect device reliability. Recommended Operating Conditions Parameter 3.3V 5.0V Maximum Input Voltage (Note 2) 12V ADJ (VOUT=3.2V) ADJ (VOUT=2.5V) Operating Junction Temperature TJ VIN Symbol Value 32 32 32 32 25 -40 to 125 oC Unit V Note 2: For ADJ version, the recommended supply voltage depends on the needed output voltage. Feb. 2007 Rev. 1. 1 5 BCD Semiconductor Manufacturing Limited Data Sheet 150kHz 3A BUCK DC-DC CONVERTER Electrical Characteristics For 3.3V Output Voltage Version Unless otherwise specified, TJ=25oC. The specifications with boldface type apply over Full Operating Junction Temperature Range. Parameter Output Voltage Efficiency Symbol VOUT Conditions 5.5VVIN32V, 0.2AILOAD3A VIN=12V, ILOAD=3A Min 3.168 3.135 Typ 3.3 75 Max 3.432 3.465 Unit V % AP3003 For 5V Output Voltage Version Unless otherwise specified, TJ=25oC. The specifications with boldface type apply over Full Operating Junction Temperature Range. Parameter Output Voltage Efficiency Symbol VOUT Conditions 7VVIN32V, 0.2AILOAD3A VIN=12V, ILOAD=3A Min 4.800 4.750 Typ 5 80 Max 5.200 5.250 Unit V % For 12V Output Voltage Version Unless otherwise specified, TJ=25oC. The specifications with boldface type apply over Full Operating Junction Temperature Range. Parameter Output Voltage Efficiency Symbol VOUT Conditions 15VVIN32V, 0.2AILOAD3A VIN=24V, ILOAD=3A Min 11.52 11.40 Typ 12.0 88 Max 12.48 12.60 Unit V % For ADJ Output Voltage Version Unless otherwise specified, TJ=25oC. The specifications with boldface type apply over Full Operating Junction Temperature Range. Parameter Symbol Conditions 4.5VVIN25V, 0.2AILOAD3A, VOUT programmed for 2.5V VIN=12V, ILOAD=3A, VOUT=2.5V Min 1.193 1.18 Typ Max 1.267 1.28 Unit Feedback Voltage VFB 1.23 V Efficiency 73 % Feb. 2007 Rev. 1. 1 6 BCD Semiconductor Manufacturing Limited Data Sheet 150kHz 3A BUCK DC-DC CONVERTER Electrical Characteristics (Continued) For All Output Voltage Versions Unless otherwise specified , VIN=12V for 3.3V, 5V and adjustable version, ILOAD=500mA, TJ Range. Parameter Feedback Bias Current AP3003 VIN=24V for 12V version, =25oC. Specifications with boldface type apply over Full Operating Junction Temperature Symbol IFB f VSAT DMAX DMIN ICL Conditions Adjustable Version Only, VFB=1.3V (Note 3) Min Typ 10 Max 50 100 173 173 1.5 1.6 Unit nA Oscillator Frequency 127 110 150 kHz Saturation Voltage Maximum Duty Cycle Minimum Duty Cycle Current Limit ILOAD=3A ( No output devices, VFB=0V) VFB=0V VFB=1.3V Peak Current , No output devices, VFB=0V Output=0V, No output devices, VFB=1.3V, VIN=32V Output=-1V, No output devices, VFB=1.3V, VIN=32V 3.6 3.4 1.2 V % % 100 0 4.5 6.9 7.5 A A 50 Output Leakage Current ISWL 2 5 80 30 10 200 250 0.6 mA mA A Quiescent Current Standby Quiescent Current IQ ISTBY VIL VIH IH VFB=1.3V ON/OFF Pin=5V, VIN=18V Regulator ON Regulator OFF VPIN5=2.5V (Regulator OFF) VPIN5=0.5V (Regulator ON) 2.0 ON/OFF Pin Logic Input Threshold Voltage V 5 0.02 15 5 A A ON/OFF Pin Input Current IL Note 3: The switching frequency is reduced when the second stage current limit is activated. Note 4: The specifications with boldface are GBD (Guaranteed By Design ). Feb. 2007 Rev. 1. 1 7 BCD Semiconductor Manufacturing Limited Data Sheet 150kHz 3A BUCK DC-DC CONVERTER Typical Performance Characteristics AP3003 90.0 87.5 85.0 82.5 90.0 87.5 85.0 82.5 Efficiency (%) 80.0 77.5 75.0 72.5 70.0 67.5 65.0 62.5 60.0 0.0 0.5 1.0 1.5 2.0 Efficiency (%) 3.3V Version O VIN=12V, TJ=25 C 2.5 3.0 3.5 80.0 77.5 75.0 72.5 70.0 67.5 65.0 62.5 60.0 0.0 0.5 1.0 1.5 2.0 5.0V Version O VIN=12V, TJ=25 C 2.5 3.0 3.5 Output Current (A) Output Current (A) Figure 4. Efficiency vs. Output Current Figure 5. Efficiency vs. Output Current 90.0 87.5 85.0 82.5 90.0 87.5 85.0 82.5 80.0 Efficiency (%) efficiency (%) 12V Version o VIN=24V,TJ=25 C 80.0 77.5 75.0 72.5 70.0 67.5 65.0 62.5 60.0 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 77.5 75.0 72.5 70.0 67.5 65.0 62.5 60.0 0.0 0.5 1.0 ADJ Version (VOUT Regulated to 2.5V) VIN=10V, TJ=25 C 1.5 2.0 2.5 3.0 3.5 O Output Current (A) Output Current (A) Figure 6. Efficiency vs. Output Current Figure 7. Efficiency vs. Output Current Feb. 2007 Rev. 1. 1 8 BCD Semiconductor Manufacturing Limited Data Sheet 150kHz 3A BUCK DC-DC CONVERTER Typical Performance Characteristics (Continued) AP3003 92.5 90.0 87.5 85.0 82.5 0.20 0.16 Output Voltage Change (%) 0.12 0.08 0.04 0.00 -0.04 -0.08 -0.12 -0.16 -0.20 Efficiency (%) 80.0 77.5 75.0 72.5 70.0 67.5 65.0 62.5 60.0 0 4 8 12 16 20 24 28 32 36 IOUT=3A, TJ=25 C 3.3V Version 5.0V Version 12V Version ADJ Version (VOUT=2.5V) Input Voltage (V) O VOUT=5.0V ILOAD=0.1A TJ=25 C 0 4 8 12 16 20 24 28 32 36 O Input Voltage (V) Figure 8. Efficiency vs. Input Voltage Figure 9. Line Regulation 5.05 5.04 1.6 1.5 Switch Saturation Voltage (V) VIN=12V, VOUT=5.0V TJ=25 C 0.5 1.0 1.5 2.0 2.5 3.0 3.5 O 5.03 1.4 1.3 1.2 1.1 1.0 0.9 0.8 0.7 0.6 0.0 Output Voltage (V) 5.02 5.01 5.00 4.99 4.98 4.97 4.96 4.95 0.0 VIN=12V, TJ=25 C 0.5 1.0 1.5 2.0 2.5 3.0 3.5 O Output Current (A) Switch Current (A) Figure 10. Load Regulation Figure 11. Switch Saturation Voltage vs. Switch Current Feb. 2007 Rev. 1. 0 9 BCD Semiconductor Manufacturing Limited Data Sheet 150kHz 3A BUCK DC-DC CONVERTER Typical Performance Characteristics (Continued) AP3003 5.50 5.25 4.5 4.0 3.5 Switch Current Limit (A) Quiescent Current (mA) 5.00 4.75 4.50 4.25 4.00 3.75 3.0 2.5 2.0 1.5 1.0 0.5 VIN=12V 3.50 -40 0.0 -20 0 20 40 60 O TJ=25 C VON/OFF=0, Switch Off 0 5 10 15 20 25 30 35 40 O 80 100 120 Junction Temperature ( C) Supply Voltage (V) Figure 12. Switch Current Limit vs. Junction Temperature Figure 13. Quiescent Current vs. Supply Voltage 5.50 5.25 5.00 180 160 140 120 100 80 60 40 20 0 0 4 8 12 16 20 24 28 32 36 Quiescent Current (mA) 4.75 4.50 4.25 4.00 3.75 3.50 3.25 3.00 2.75 2.50 -40 -20 0 20 40 VIN=12V VON/OFF=0V, Switch OFF 60 o Shutdown Quiescent Current (A) TJ=25 C VON/OFF=5V Supply Voltage (V) O 80 100 120 Junction Temperature ( C) Figure 14. Quiescent Current vs. Junction Temperature Figure 15. Shutdown Quiescent Current vs. Input Voltage Feb. 2007 Rev. 1. 1 10 BCD Semiconductor Manufacturing Limited Data Sheet 150kHz 3A BUCK DC-DC CONVERTER Typical Performance Characteristics (Continued) AP3003 1.6 1.5 8 7 ON/OFF Pin Current (A) 1.4 OFF 6 5 4 3 2 1 ON/OFF Voltage (V) 1.3 1.2 1.1 1.0 0.9 ON VIN=12V 0.8 -40 -20 0 20 40 60 O 80 100 120 0 0.0 VIN=32V, TJ=25 C 2.5 5.0 7.5 10.0 12.5 15.0 17.5 20.0 22.5 25.0 O Junction Temperature ( C) ON/OFF Pin Voltage (V) Figure 16. On/Off Threshold Voltage vs. Junction Temperature Figure 17. On/Off Pin Current vs. On/Off Pin Voltage 160 156 152 Frequency (kHz) 148 144 140 136 132 128 124 120 -40 -20 0 20 40 60 O 80 100 120 Junction Temperature ( C) Figure 18. Switching Frequency vs. Junction Temperature Feb. 2007 Rev. 1. 1 11 BCD Semiconductor Manufacturing Limited Data Sheet 150kHz 3A BUCK DC-DC CONVERTER Typical Application AP3003 4 FEEDBACK 1 VIN AP3003-3.3V OUTPUT GND 3 ON/OFF 5 2 L1 22H D1 1N5822 Regulated DC Output 3A Load CIN 470F + + COUT 220F L1: Sumida CDRH127/LDNP-220MC or Equivalent Figure 19. Typical Application of AP3003-3.3V 12V Unregulated DC Input 1 VIN 4 FEEDBACK AP3003-5.0V OUTPUT GND 3 ON/OFF 5 2 L1 22H Regulated DC Output 3A Load CIN 470F + + D1 1N5822 COUT 220F L1: Sumida CDRH127/LDNP-220MC or Equivalent Figure 20. Typical Application of AP3003-5.0V Feb. 2007 Rev. 1. 1 12 BCD Semiconductor Manufacturing Limited Data Sheet 150kHz 3A BUCK DC-DC CONVERTER Typical Application (Continued) AP3003 24V Unregulated DC Input 1 VIN 4 FEEDBACK AP3003-12V OUTPUT GND 3 ON/OFF 5 2 L1 22H Regulated DC Output 3A Load CIN 470F + D1 1N5822 + COUT 220F L1: Sumida CDRH127/LDNP-220MC or Equivalent Figure 19. Typical Application of AP3003-12V R1 3.6k 12V Unregulated DC Input 1 VIN R2 3.69k 2.5V Regulated DC Output 3A Load L1 22H COUT 220F 4 FEEDBACK CFF 33nF 2 OUTPUT AP3003-ADJ GND 3 ON/OFF 5 CIN 470F + + VOUT=1.23 * (R2+R1) R1 D1 1N5822 L1: Sumida CDRH127/LDNP-220MC or Equivalent Figure 20. Typical Application of AP3003-ADJ Feb. 2007 Rev. 1. 0 13 BCD Semiconductor Manufacturing Limited Data Sheet 150kHz 3A BUCK DC-DC CONVERTER Mechanical Dimensions TO-220-5 Unit: mm(inch) AP3003 11.760(0.463) 12.160(0.479) 2.590(0.102) 2.890(0.114) 9.850(0.388) 10.150(0.400) 3.790(0.149) 3.890(0.153) 4.470(0.176) 4.670(0.184) 1.170(0.046) 1.370(0.054) 0.710(0.028) 0.910(0.036) 13.500(0.531) 13.900(0.547) 2.520(0.099) 2.820(0.111) 1.700(0.067) TYP 6.700(0.264) 6.900(0.272) 8.200(0.323) 8.600(0.339) 0.310(0.012) 0.530(0.021) Feb. 2007 Rev. 1. 1 14 BCD Semiconductor Manufacturing Limited Data Sheet 150kHz 3A BUCK DC-DC CONVERTER Mechanical Dimensions (Continued) TO-263-5 Unit: mm(inch) AP3003 1.560 (0.061) 1.760 (0.069) 9.880 (0.389) 10.180 (0.401) 4.470 (0.176) 4.670 (0.184) 1.170 (0.046) 1.370 (0.054) 5.600 (0.220) REF 8.200 (0.323) 8.600 (0.339) 15.140 (0.596) 15.540 (0.612) 5.080 (0.200) 5.480 (0.216) 0.710 (0.028) 0.910 (0.036) 0.000 (0.000) 0.150 (0.006) 1.700 (0.067) TYP 6.700 (0.264) 6.900 (0.272) 0.310 (0.012) 0.530 (0.021) 2.340 (0.092) 2.740 (0.108) Feb. 2007 Rev. 1. 0 15 BCD Semiconductor Manufacturing Limited http://www.bcdsemi.com IMPORTANT NOTICE BCD Semiconductor Manufacturing Limited reserves the right to make changes without further notice to any products or specifications herein. BCD Semiconductor Manufacturing Limited does not assume any responsibility for use of any its products for any particular purpose, nor does BCD Semiconductor Manufacturing Limited assume any liability arising out of the application or use of any its products or circuits. BCD Semiconductor Manufacturing Limited does not convey any license under its patent rights or other rights nor the rights of others. MAIN SITE BCD Semiconductor Manufacturing Limited - Wafer Fab Shanghai SIM-BCD Semiconductor Manufacturing Limited 800, Yi Shan Road, Shanghai 200233, China Tel: +86-21-6485 1491, Fax: +86-21-5450 0008 BCD Semiconductor Manufacturing Limited - IC Design Group Advanced Analog Circuits (Shanghai) Corporation 8F, Zone B, 900, Yi Shan Road, Shanghai 200233, China Tel: +86-21-6495 9539, Fax: +86-21-6485 9673 REGIONAL SALES OFFICE Shenzhen Office Shanghai SIM-BCD Semiconductor Manufacturing Co., Ltd. Shenzhen Office Advanced Analog Circuits (Shanghai) Corporation Shenzhen Office Room E, 5F, Noble Center, No.1006, 3rd Fuzhong Road, Futian District, Shenzhen 518026, China Tel: +86-755-8826 7951 Fax: +86-755-8826 7865 Taiwan Office BCD Semiconductor (Taiwan) Company Limited 4F, 298-1, Rui Guang Road, Nei-Hu District, Taipei, Taiwan Tel: +886-2-2656 2808 Fax: +886-2-2656 2806 USA Office BCD Semiconductor Corporation 30920 Huntwood Ave. Hayward, CA 94544, U.S.A Tel : +1-510-324-2988 Fax: +1-510-324-2788 |
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