Preliminary Datasheet 150kHz 3A PWM BUCK DC-DC CONVERTER AP3001 General Description Features The AP3001 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 are simple to use and include internal frequency compensation and a fixed frequency oscillator, so that a system adopting AP3001 requires a minimum number of external components to work. · · · · · · 3.3V, 5V Fixed and Adjustable Output Versions Guaranteed 3A Output Load Current 150kHz Fixed Frequency Internal Oscillator Excellent Line and Load Regulation TTL Shutdown Capability Low Power Standby Mode, IQ Typically 80µA · Built-in Current Limit Protection and Thermal Shutdown Circuit These ICs are available in TO-220-5L, TO-220B-5L and TO-263-5L packages. Applications · · · · TO-220-5L LCD Monitor and LCD TV On-Card DC-DC Converter DVD Recorder PDP TO-263-5L TO-220B-5L Figure 1. Package Types of AP3001 Jul. 2006 Rev. 1. 3 BCD Semiconductor Manufacturing Limited 1 Preliminary Datasheet 150kHz 3A PWM BUCK DC-DC CONVERTER AP3001 Pin Configuration S Package (TO-263-5L) T/TB Package (TO-220-5L/TO-220B-5L) 5 4 3 2 1 ON/OFF FEEDBACK GND OUTPUT VIN 5 4 3 2 1 ON/OFF FEEDBACK GND OUTPUT VIN Figure 2. Pin Configuration of AP3001 (Top View) Pin Description Pin Number Pin Name 1 VIN 2 OUTPUT 3 GND 4 FEEDBACK 5 ON/OFF Function 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 divider to program the system output voltage The TTL logic compatible input to control the regulator on or off Jul. 2006 Rev. 1. 3 BCD Semiconductor Manufacturing Limited 2 Preliminary Datasheet 150kHz 3A PWM BUCK DC-DC CONVERTER AP3001 Functional Block Diagram ON/OFF 5 1 1.235V REFERENCE 220 mV 2.5V REGULATOR 200 mV VIN START UP + Bias Current 2.5V COMP Frequency Shift _ 150kHz OSC _ COMP + FEEDBACK 4 1:100 R2 + _ EA _ LATCH COMP DRIVER & INV 2 + R1 For 3.3V 5V ADJ THERMAL SHUTDOWN R1=2.49k R2=4.18k R1=2.49k R2=7.57k R1=Open R2=0 3 OUTPUT GND Figure 3. Functional Block Diagram of AP3001 Jul. 2006 Rev. 1. 3 BCD Semiconductor Manufacturing Limited 3 Preliminary Datasheet 150kHz 3A PWM BUCK DC-DC CONVERTER AP3001 Ordering Information AP3001 E1: Lead Free Blank: Tin Lead Circuit Type TR: Tape and Reel Blank: Tube ADJ: Adjustable Output 3.3: Fixed Output 3.3V 5.0: Fixed Output 5.0V Package T: TO-220-5L TB: TO-220B-5L S: TO-263-5L Package TO-220-5L TO-220B-5L TO-263-5L Temperature Range -40 to 85oC oC -40 to 85 -40 to 85oC Part Number Marking ID Packing Type Tin Lead Lead Free Tin Lead Lead Free AP3001T-ADJ AP3001T-ADJE1 AP3001T-ADJ AP3001T-ADJE1 Tube AP3001T-3.3 AP3001T-3.3E1 AP3001T-3.3 AP3001T-3.3E1 Tube AP3001T-5.0 AP3001T-5.0E1 AP3001T-5.0 AP3001T-5.0E1 Tube AP3001TB-ADJ AP3001TB-ADJE1 AP3001TB-ADJ AP3001TB-ADJE1 Tube AP3001TB-3.3 AP3001TB-3.3E1 AP3001TB-3.3 AP3001TB-3.3E1 Tube AP3001TB-5.0 AP3001TB-5.0E1 AP3001TB-5.0 AP3001TB-5.0E1 Tube AP3001S-ADJ AP3001S-ADJE1 AP3001S-ADJ AP3001S-ADJE1 Tube AP3001S-ADJTR AP3001S-ADJTRE1 AP3001S-ADJ AP3001S-ADJE1 Tape & Reel AP3001S-3.3 AP3001S-3.3E1 AP3001S-3.3 AP3001S-3.3E1 Tube AP3001S-3.3TR AP3001S-3.3TRE1 AP3001S-3.3 AP3001S-3.3E1 Tape & Reel AP3001S-5.0 AP3001S-5.0E1 AP3001S-5.0 AP3001S-5.0E1 Tube AP3001S-5.0TR AP3001S-5.0TRE1 AP3001S-5.0 AP3001S-5.0E1 Tape & Reel BCD Semiconductor's Pb-free products, as designated with "E1" suffix in the part number, are RoHS compliant. Jul. 2006 Rev. 1. 3 BCD Semiconductor Manufacturing Limited 4 Preliminary Datasheet 150kHz 3A PWM BUCK DC-DC CONVERTER AP3001 Absolute Maximum Ratings (Note 1) Parameter Symbol Value Unit Maximum Supply Voltage 40 V ON/OFF Pin Input Voltage -0.3 to 25 V Feedback Pin Voltage -0.3 to 25 V RθJA 60 Power Dissipation (TA=25oC, No Heat Sink) PD 2.08 W Operating Junction Temperature TJ 150 oC TLEAD 260 oC TSTG -65 to 150 oC ESD ( Machine Model) 250 V ESD ( Human Body Model) 2500 V Thermal Resistance (For TO-220-5L, TO-220B-5L and o C/W TO-263-5L Packages) Lead Temperature (Soldering, 10sec) Storage Temperature Range 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 Supply Voltage (Note 2) Operating Junction Temperature VIN Symbol Min Max AP3001-3.3V 4.75 10 AP3001-5.0V 7.5 18 AP3001-ADJ (VOUT=12V) 16 28 -40 125 TJ Unit V oC Note 2: For detailed recommended input supply voltage range, please refer to the test "conditions" for each output voltage version. For ADJ version, the recommended supply voltage dependes on the needed output voltage, the experienced formula is 1.5*VOUT≤VIN≤2.5*VOUT and 4.5V≤VIN≤36V. Jul. 2006 Rev. 1. 3 BCD Semiconductor Manufacturing Limited 5 Preliminary Datasheet 150kHz 3A PWM BUCK DC-DC CONVERTER AP3001 Electrical Characteristics For All Output Voltage Versions Unless otherwise specified , VIN=12V for 3.3V, 5V and adjustable version, ILOAD=500mA. Specifications with standard type face are for TJ=25oC, and those with boldface type apply over Full Operating Temperature Range. Parameter Symbol Conditions Min Feedback Bias Current IB Adjustable Version Only, VFB=1.3V Oscillator Frequency fO (Frequency reduces when the second current limit is activated) Saturation Voltage VSAT ILOAD=3A ( No output devices, VFB=0V) Maximum Duty Cycle (ON) DMAX (VFB=0V) Minimum Duty Cycle (OFF) DMIN (VFB=12V) Current Limit ICL Output Leakage Current IL Quiescent Current Standby Quiescent Current ON/OFF Pin Logic Input Threshold Voltage IQ ISTBY 127 110 Typ Max Unit 40 100 200 nA 150 173 173 kHz 1.2 1.4 1.5 V 100 % 0 Peak Current ( No output devices, VFB=0V) 3.6 3.4 % 5 6.9 7.5 A µA Output=0V (No output devices, VFB=12V) 50 Output=-1V (VIN=18V) 2 30 mA (VFB=12V) 5 10 mA ON/OFF Pin=5V (Regulator OFF) 80 200 250 µA 1.3 0.6 VIL Low (Regulator ON) VIH High (Regulator OFF) V 2.0 1.3 IH VLOGIC=2.5V (Regulator OFF) 5 15 µA IL VLOGIC=0.5V (Regulator ON) 0.02 5 µA ON/OFF Pin Input Current Jul. 2006 Rev. 1. 3 BCD Semiconductor Manufacturing Limited 6 Preliminary Datasheet 150kHz 3A PWM BUCK DC-DC CONVERTER AP3001 Electrical Characteristics (Continued) For 3.3V Output Voltage Version Specifications with standard type face are for TJ=25oC, and those with boldface type apply over Full Operating Temperature Range. Parameter Output Voltage Symbol VOUT Conditions 4.75V≤VIN≤10V, 0.3A≤ILOAD≤3A Efficiency η Min Typ Max Unit 3.168 3.135 3.3 3.432 3.465 V VIN=12V, ILOAD=3A 73 % For 5V Output Voltage Version Specifications with standard type face are for TJ=25oC, and those with boldface type apply over Full Operating Temperature Range. Parameter Output Voltage Symbol VOUT Conditions 7.5V≤VIN≤18V, 0.3A≤ILOAD≤3A Efficiency η Min Typ Max Unit 4.8 4.75 5 5.2 5.25 V VIN=12V, ILOAD=3A 80 % For ADJ Output Voltage Version Specifications with standard type face are for TJ=25oC, and those with boldface type apply over Full Operating Temperature Range. Parameter Feedback Voltage Symbol VFB Conditions 16V≤VIN≤28V, 0.3A≤ILOAD≤2.5A, VOUT programmed for 12V Efficiency η VIN=24V, ILOAD=2A, VOUT=12V Jul. 2006 Rev. 1. 3 Min Typ Max Unit 1.193 1.18 1.23 1.267 1.28 V 80 % BCD Semiconductor Manufacturing Limited 7 Preliminary Datasheet 150kHz 3A PWM BUCK DC-DC CONVERTER AP3001 Typical Performance Characteristics 1.5 1.35 1.0 1.25 1.20 Saturation Voltage (V) Output Voltage Change (%) 1.30 VIN=12V ILOAD=3A 0.5 0.0 -0.5 1.15 1.10 O TJ=-40 C 1.05 1.00 0.95 0.90 0.85 O TJ=25 C 0.80 -1.0 0.75 -1.5 -50 0.65 -25 0 25 50 75 100 125 0.5 1.0 O 1.5 2.0 2.5 3.0 Switch Current (A) Junction Temperature ( C) Figure 4. Normalized Output Voltage vs. Junction Temperature Figure 5. Output Saturation Characteristics 200 100 4.5V<VIN<18V ISWITCH=0 80 Switching Frequency (kHz) Operating Quiescent Current (mA) VIN=12V O TJ=125 C 0.70 Switch ON 60 40 20 180 160 140 120 0 Switch OFF -50 -25 0 25 50 75 100 100 -50 125 O Junction Temperature ( C) -25 0 25 50 Junction Temperature( Figure 6. Operating Quiescent Current vs. Junction Temperature 75 100 125 O C) Figure 7. Switching Frequency vs. Junction Temperature Jul. 2006 Rev. 1. 3 BCD Semiconductor Manufacturing Limited 8 Preliminary Datasheet 150kHz 3A PWM BUCK DC-DC CONVERTER AP3001 Typical Performance Characteristics (Continued) 1.5 8 7 OFF 1.4 1.3 5 Current (µA) Threshold Voltage (V) 6 1.2 1.1 4 VIN=18V 3 O O -40 C<TJ<125 C 2 ON 1 1.0 0 0.9 -50 -1 -25 0 25 50 75 100 125 0 O 5 10 15 20 25 ON/OFF Pin Voltage (V) Junction Temperature ( C) Figure 9. ON/OFF Pin Current (Sinking) vs. ON/OFF Pin Voltage Figure 8. ON/OFF Pin Threshold Voltage vs. Junction Temperature Feedback Bias Current (nA) 60 55 50 45 ADJ Version Only 40 35 30 -50 -25 0 25 50 75 100 125 O Junction Temperature ( C) Figure 10. Feedback Bias Current vs. Junction Temperature Jul. 2006 Rev. 1. 3 BCD Semiconductor Manufacturing Limited 9 Preliminary Datasheet 150kHz 3A PWM BUCK DC-DC CONVERTER AP3001 Typical Application R1 1k R2 24V Unregulated DC Input 4 FEEDBACK 1 CIN 680µF AP3001-ADJ VIN CC 33nF (Optional) OUTPUT GND 3 + 2 12V Regulated DC Output 3A Load L1 47µH ON/OFF 5 D1 S36 VOUT=1.23 * + (R2+R1) R1 COUT 470µF Figure 11. Typical Application of AP3001-ADJ 8V Unregulated DC Input FEEDBACK 1 CIN 680µF Regulated DC Output 3A Load 4 + VIN AP3001-3.3V 2 L1 47µH OUTPUT GND 3 ON/OFF 5 D1 S36 + COUT 470µF Figure 12. Typical Application of AP3001-3.3V Jul. 2006 Rev. 1. 3 BCD Semiconductor Manufacturing Limited 10 Preliminary Datasheet 150kHz 3A PWM BUCK DC-DC CONVERTER AP3001 Typical Application (Continued) 8V Unregulated DC Input FEEDBACK 1 CIN 680µF Regulated DC Output 3A Load 4 + VIN AP3001-5V 2 L1 47µH OUTPUT GND 3 ON/OFF 5 D1 S36 + COUT 330µF Figure 13. Typical Application of AP3001-5V Jul. 2006 Rev. 1. 3 BCD Semiconductor Manufacturing Limited 11 Preliminary Datasheet 150kHz 3A PWM BUCK DC-DC CONVERTER AP3001 Mechanical Dimensions TO-220-5L 4.470(0.176) 4.670(0.184) 9.850(0.388) 10.150(0.400) φ3.790(0.149) 3.890(0.153) 1.170(0.046) 1.370(0.054) 8.200(0.323) 8.600(0.339) 11.760(0.463) 12.160(0.479) 2.590(0.102) 2.890(0.114) Unit: mm(inch) 13.500(0.531) 13.900(0.547) 0.710(0.028) 0.910(0.036) 2.520(0.099) 2.820(0.111) 1.700(0.067) TYP 6.700(0.264) 6.900(0.272) Jul. 2006 Rev. 1. 3 0.310(0.012) 0.530(0.021) BCD Semiconductor Manufacturing Limited 12 Preliminary Datasheet 150kHz 3A PWM BUCK DC-DC CONVERTER AP3001 Mechanical Dimensions (Continued) TO-220B-5L 10.010(0.394) 10.310(0.406) 3.790(0.149) 3.890(0.153) 2.590(0.102) 2.890(0.114) 12.460(0.491) 12.860(0.506) 0.950(0.037) R 1.050(0.041) Unit: mm(inch) 1.170(0.046) 1.370(0.054) 1.170(0.046) 1.370(0.054) 8.900(0.350) 9.300(0.366) 4.470(0.176) 4.670(0.184) 24.300(0.957) 24.700(0.972) 0.710(0.028) 0.910(0.036) 25.100(0.988) 25.500(1.004) 3.400(0.134) 3.600(0.142) 2.520(0.099) 2.820(0.111) 5.300(0.209) 3.800(0.150) 4.000(0.157) 5.500(0.217) 4.250(0.167) 4.550(0.179) 1.700(0.067)TYP 6.700(0.264) 6.900(0.272) 3.300(0.130) 3.500(0.138) Jul. 2006 Rev. 1. 3 0.310(0.012) 0.530(0.021) 8.250(0.325) 8.550(0.337) BCD Semiconductor Manufacturing Limited 13 Preliminary Datasheet 150kHz 3A PWM BUCK DC-DC CONVERTER AP3001 Mechanical Dimensions (Continued) TO-263-5L 4.470 (0.176) 4.670 (0.184) 9.880 (0.389) 10.180 (0.401) 1.170 (0.046) 1.370 (0.054) 5.600 (0.220) REF 15.140 (0.596) 15.540 (0.612) 1.560 (0.061) 1.760 (0.069) Unit: mm(inch) 8.200 (0.323) 8.600 (0.339) 0.000 (0.000) 0.150 (0.006) 5.080 (0.200) 5.480 (0.216) 1.700 (0.067) TYP 6.700 (0.264) 6.900 (0.272) 0.710 (0.028) 0.910 (0.036) Jul. 2006 Rev. 1. 3 0.310 (0.012) 0.530 (0.021) 2.340 (0.092) 2.740 (0.108) BCD Semiconductor Manufacturing Limited 14 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. 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