Data Sheet 3-TERMINAL 1A ADJUSTABLE VOLTAGE REGULATOR General Description Features The AZ317 is an adjustable three-terminal positive voltage regulator with a very low dropout of 1.2V at 1A output current. Using 2 external resistors, the AZ317 can provide an adjustable output voltage down to 1.25V. · · · · · · · The AZ317 includes a circuit of trimmed bandgap reference to assure output voltage accuracy to be within 1%. It also provides current limiting and thermal shutdown. The current limit is trimmed to ensure specified output current and controlled short-circuit current. The On-chip thermal limiting provides protection against any combination of overload and ambient temperature that would create excessive junction temperature. AZ317 Typical 1% Output Voltage Tolerance Typical 0.01%/V Line Regulation Typical 0.2% Load Regulation Very Low Dropout Voltage: 1.2V at 1A Output Current Trimmed Current Limit On-chip Thermal Protection Operation Junction Temperature: 0 to 125oC Applications · · · · · · · The AZ317 is available in the standard SOT-223, TO220-3, TO-252-2 (1) and TO-263-3 power packages. SOT-223 PC Motherboard LCD Monitor Graphic Card DVD Player Network Interface Card/Switch Telecom Equipment Printer and other Peripheral Equipment TO-220-3 TO-263-3 TO-252-2 (1) Figure 1. Package Types of AZ317 Mar. 2007 Rev. 1. 3 BCD Semiconductor Manufacturing Limited 1 Data Sheet 3-TERMINAL 1A ADJUSTABLE VOLTAGE REGULATOR AZ317 Pin Configuration T Package (TO-220-3) H Package (SOT-223) VOUT 3 INPUT 2 OUTPUT 1 VOUT INPUT 2 OUTPUT 1 ADJ ADJ S Package (TO-263-3) D Package (TO-252-2(1)) VOUT 3 3 INPUT 2 OUTPUT 1 ADJ 3 INPUT 2 OUTPUT 1 ADJ Figure 2. Pin Configuration of AZ317 (Top View) Functional Block Diagram Thermal Shutdown 3 INPUT 2 OUTPUT Current Limiter _ + + 1 ADJ Figure 3. Functional Block Diagram of AZ317 Mar. 2007 Rev. 1. 3 BCD Semiconductor Manufacturing Limited 2 Data Sheet 3-TERMINAL 1A ADJUSTABLE VOLTAGE REGULATOR AZ317 Ordering Information AZ317 Circuit Type E1: Lead Free Package TR: Tape and Reel H: SOT-223 T: TO-220-3 D: TO-252-2 (1) S: TO-263-3 Blank: Tube Package Temperature Range SOT-223 0 to 125oC TO-220-3 125oC 0 to - TO-252-2 (1) 0 to 125oC TO-263-3 0 to 125oC Blank: Tin Lead Part Number Tin Lead Marking ID Lead Free Tin Lead Lead Free Packing Type AZ317HTR AZ317HTR-E1 317H EH31A Tape & Reel AZ317T AZ317T-E1 AZ317T AZ317T-E1 AZ317D AZ317D-E1 AZ317D AZ317D-E1 Tube AZ317DTR AZ317DTR-E1 AZ317D AZ317D-E1 Tape & Reel Tube AZ317S AZ317S-E1 AZ317S AZ317S-E1 Tube AZ317STR AZ317STR-E1 AZ317S AZ317S-E1 Tape & Reel BCD Semiconductor's Pb-free products, as designated with "E1" suffix in the part number, are RoHS compliant. Mar. 2007 Rev. 1. 3 BCD Semiconductor Manufacturing Limited 3 Data Sheet 3-TERMINAL 1A ADJUSTABLE VOLTAGE REGULATOR AZ317 Absolute Maximum Ratings (Note 1) Parameter Symbol Input Voltage Max Unit VIN 20 V Maximum Junction Temperature TJ 150 o Storage Temperature TS 150 o C TLEAD 300 o C ESD 4000 V Lead Temperature (Soldering, 10sec) ESD (Human Body Model) Min -65 C Note1: 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 Input Voltage Operating Junction Temperature Range Symbol Min Max Unit VIN VOUT+2 15 V TJ 0 125 o Mar. 2007 Rev. 1. 3 C BCD Semiconductor Manufacturing Limited 4 Data Sheet 3-TERMINAL 1A ADJUSTABLE VOLTAGE REGULATOR AZ317 Electrical Characteristics (Typicals and limits apply for TJ =25oC, P≤ Maximum Power Dissipation unless otherwise specified.)(Note 2) Parameter Reference Voltage Symbol VREF Conditions 10mA≤IOUT≤1A, 3V≤ (VIN-VOUT) ≤10V Min Typ Max Unit 1.20 1.25 1.30 V Line Regulation SV IOUT ≤ 20mA, 3V≤VIN-VOUT≤10V 0.01 0.04 %/V Load Regulation Si VIN -VOUT = 2V, 10mA≤IOUT≤1A 0.2 0.4 % 20ms Pulse 0.04 0.07 %/W IOUT = 1A 1.2 1.3 V 1.5 1.8 A 50 100 µA Thermal Regulation Dropout Voltage Current Limit ∆V ILIMIT (VIN-VOUT) = 2V 1.2 Adjust Pin Current Adjust Pin Current Change 1.4V≤(VIN-VOUT) ≤ 10V, 10mA ≤IOUT ≤1A 0.2 5 µA Minimum Load Current 3V≤ (VIN-VOUT) ≤ 15V 3.5 10 mA Ripple Rejection f =120Hz, COUT =1µF Tantalum, (VIN-VOUT) = 3V, IOUT =1A Temperature Stability Long -Term Stability TA RMS Output Noise (% of VOUT) TA=25oC, 10Hz ≤ f ≤ 10kHz Thermal Resistance, Junction to Case SOT-223 TO-252 TO-220 TO-263 Thermal Shutdown Junction Temperature =125oC, 1000hrs Thermal Shutdown Hysteresis 60 75 dB 1 % 0.3 % 0.003 % 15 10 4.5 4 oC/W 150 oC 25 oC Note 2: Maximum Power Dissipation is Package Type and Case Temperature dependent. Please see Figure 12. Mar. 2007 Rev. 1. 3 BCD Semiconductor Manufacturing Limited 5 Data Sheet 3-TERMINAL 1A ADJUSTABLE VOLTAGE REGULATOR AZ317 Typical Performance Characteristics 0.8 1.2 1.1 Output Voltage Deviation (%) o Dropout Voltage (V) TA=0 C 1.0 o TA=25 C 0.9 o TA=120 C 0.8 0.7 0.6 VOUT=3.3V 0.4 0.2 0.0 0.6 -0.2 0.5 0.2 0.4 0.6 0.8 0 1.0 20 40 60 80 Output Current (A) 120 Figure 6. Load Regulation vs. Temperature Figure 5. Dropout Voltage vs. Output Current 1.260 3.40 1.255 VOUT=3.3V 1.250 IOUT=30mA 1.245 VOUT=3.3V 3.35 Output Voltage (V) Reference Voltage (V) 100 o Ambient Temperature ( C) 1.240 1.235 1.230 1.225 IOUT=30mA 3.30 3.25 3.20 1.220 3.15 1.215 1.210 0 25 50 75 100 3.10 125 0 o 25 50 75 100 125 o Ambient Temparature ( C) Ambient Temperature ( C) Figure 7. Reference Voltage vs. Temperature Figure 8. Output Voltage vs. Temperature Mar. 2007 Rev. 1. 3 BCD Semiconductor Manufacturing Limited 6 Data Sheet 3-TERMINAL 1A ADJUSTABLE VOLTAGE REGULATOR AZ317 Typical Performance Characteristics (Continued) 5 100 Minimum Load Current (mA) 90 4 VOUT=3.3V Adjust Pin Current (µ A) 80 3 2 VOUT=3.3V 1 IOUT=30mA 70 60 50 40 30 20 10 0 0 25 50 75 100 0 125 0 25 50 o 100 125 Ambient Temperature( C) Figure 9. Minimum Load Current vs. Temperature Figure 10. Adjust Pin Current vs. Temperature 2.00 10.0 1.75 7.5 Power (W) Short-Circuit Current (A) 75 o Ambient Temperature ( C) 1.50 5.0 SOT- 223 1.25 2.5 1.00 0 25 50 75 100 0.0 25 125 50 75 100 125 o o Case Temperature ( C) Junction Temperature ( C) Figure 12. Maximum Power Dissipation Figure 11. Short-Circuit Current vs. Temperature Mar. 2007 Rev. 1. 3 BCD Semiconductor Manufacturing Limited 7 Data Sheet 3-TERMINAL 1A ADJUSTABLE VOLTAGE REGULATOR AZ317 Typical Performance Characteristics (Continued) Line_transient_response VIN=4.8V, VOUT=3.33V, CIN=1µ,COUT=10µ (TAN) 70 Ripple Rejection (dB) VIN=8.3V 60 VOUT VOUT=3.3V 50 VIN=5.8V 40 VIN=4.8V 30 20 10 100 1k 10k 100k Frequency (Hz) Figure 14. Line Transient Response Figure 13. Ripple Rejection vs. Frequency Line_transient_response VIN=4.8V, VOUT=3.33V, CIN=COUT=10µ (TAN) preload=0.1A VOUT IOUT=0.5A IOUT=0.1A Figure 15. Load Transient Response Mar. 2007 Rev. 1. 3 BCD Semiconductor Manufacturing Limited 8 Data Sheet 3-TERMINAL 1A ADJUSTABLE VOLTAGE REGULATOR AZ317 Typical Application AZ317 VIN INPUT + * CIN 0.1µF OUTPUT VOUT R1 240Ω ADJ + ** CO 1.0µF R2 * = CIN is required if the regulator is located near power supply filter. **= CO is needed for stability and it improves transient response. VOUT = VREF x (1+R2/R1) + IADJ x R2 Since IADJ is controlled to less than 100µA, the error associated with this term is negligible in most applications. Figure 4. Typical Application of AZ317 Mar. 2007 Rev. 1. 3 BCD Semiconductor Manufacturing Limited 9 Data Sheet 3-TERMINAL 1A ADJUSTABLE VOLTAGE REGULATOR AZ317 Mechanical Dimensions SOT-223 Unit: mm(inch) 6.300(0.248) 6.700(0.264) ) 0.250(0.010 ) 4 1 0.350(0.0 2.900(0.114) 3.100(0.122) 0.900(0.035) 3.700(0.146) 3.300(0.130) 7.300(0.287) 6.700(0.264) MIN 0.250(0.010) 1.750(0.069) TYP 2.300(0.091) 0.610(0.024) TYP 0.810(0.032) 4.500(0.177) 0° 10° 4.700(0.185) 0.020(0.001) 0.100(0.004) 1.500(0.059) 1.520(0.060) 1.700(0.067) 1.800(0.071) Mar. 2007 Rev. 1. 3 BCD Semiconductor Manufacturing Limited 10 Data Sheet 3-TERMINAL 1A ADJUSTABLE VOLTAGE REGULATOR AZ317 Mechanical Dimensions (Continued) TO-220-3 2.580(0.102) 3.380(0.133) 0.550(0.022) 1.350(0.053) 1.160(0.046) 1.760(0.069) 14.230(0.560) 16.510(0.650) φ1.500(0.059) 27.880(1.098) 30.280(1.192) 8.520(0.335) 9.520(0.375) 1.850(0.073) 9.660(0.380) 10.660(0.420) φ3.560(0.140) 4.060(0.160) Unit: mm(inch) 3° 0.200(0.008) 7° 3.560(0.140) 4.820(0.190) 2.080(0.082) 2.880(0.113) 7° 0.381(0.015) 60° 0.813(0.032) 8.763(0.345) 60° 0.381(0.015) 2.540(0.100) 2.540(0.100) Mar. 2007 Rev. 1. 3 0.356(0.014) 0.406(0.016) BCD Semiconductor Manufacturing Limited 11 Data Sheet 3-TERMINAL 1A ADJUSTABLE VOLTAGE REGULATOR AZ317 Mechanical Dimensions (Continued) 1.350(0.053) 1.650(0.065) TO-252-2(1) 6.350(0.250) 6.650(0.262) 5.200(0.205) 5.400(0.213) Unit: mm(inch) 2.200(0.087) 2.400(0.094) 0.430(0.017) 0.580(0.023) 4.300(0.169) 5.400(0.212) 5° 0.700(0.028) 0.900(0.035) 0.500(0.020) 0.700(0.028) 2.300TYP 4.500(0.177) 4.700(0.165) 1.400(0.055) 1.780(0.070) 5° 3° 4° 0.430(0.017) 0.580(0.023) Mar. 2007 Rev. 1. 3 4.800(0.189) 6.500(0.256) 3.800REF(0.150REF) 5.400(0.213) 5.700(0.224) 0.000(0.000) 0.127(0.005) 2.550(0.100) 2.900(0.114) 0.600(0.024) 0.900(0.035) 9.500(0.374) 9.900(0.390) 8° BCD Semiconductor Manufacturing Limited 12 Data Sheet 3-TERMINAL 1A ADJUSTABLE VOLTAGE REGULATOR AZ317 Mechanical Dimensions (Continued) TO-263-3 4.070(0.160) 4.820(0.190) Unit: mm(inch) 3° 9.650(0.380) 10.290(0.405) 8.840(0.348) 7.420(0.292) 1.150(0.045) 1.390(0.055) 1.270(0.050) 1.390(0.055) 70° 14.760(0.581) 15.740(0.620) 1.150(0.045) 1.390(0.055) 3° 0.510(0.020) 0.990(0.039) 2.540(0.100) 2.640(0.104) 2.700(0.106) 0.360(0.014) 0.400(0.016) 7° 2.200(0.087) 5.600(0.220) 0.020(0.001) 0.250(0.010) 2.390(0.094) 2.690(0.106) 8.640(0.340) 9.650(0.380) 7° 7.980(0.314) 2° 8° 0.380(0.015) 2.540(0.100) 2.540(0.100) 0° 6° Mar. 2007 Rev. 1. 3 2.540(0.100) BCD Semiconductor Manufacturing Limited 13 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 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 - 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