AMC317 1.2A / 3-TERMINAL ADJUSTABLE REGULATOR www.addmtek.com DESCRIPTION FEATURES The AMC317 series is a 3-terminal adjustable regulator featuring output current of typical 1.2A over a wide output range from 1.2V to 20V. Only two external resistors are required to set the output voltage. This feature provides better line and load regulation than fixed regulators. Also, the AMC317 series offers full overload protection, current limit, and thermal protection features. In most applications, no capacitor is required for the AMC317. However, if the device is located far from the input filter capacitor, then an input bypass will be required. Also, in order to improve the transient response, an output capacitor is recommended. Output current capability of 1.2A Wide output voltage range – adjustable from 1.2V to 20V Ripple rejection typically 80 dB Typically 0.1% load regulation Built-in over current, over temperature and overload protection. Internal thermal overload protection Available in 3-Lead TO-220, and surface mount 3-Lead TO-263. Identical pin assignment to earlier LM317 series. APPLICATIONS PACKAGE PIN OUT Voltage Regulators Power Supplies Current Regulators Switching Regulators Current Limiter Constant Current Battery Charger Current Limited Charger VIN V IN VOUT V OUT AD J ADJ 3-P in P lastic T O -263 3-Pin Plastic TO-220 S u rface M o u n t (Top View) (To p View ) V IN 3. VIN V OUT 2. V out ADJ 1. ADJ/GND 3-Pin Plastic TO-252 Surface Mount (Top View) 3 -P in P la s tic S O T -2 2 3 S u rfa c e M o u n t (To p V ie w ) ORDER INFORMATION TA (°C) T Plastic TO-220 3-pin 0 to 70 AMC317T ST Plastic TO-263 3-pin AMC317ST SJ Plastic TO-252 3-pin AMC317SJ SK Plastic SOT-223 3-pin AMC317SK 0 to 70 AMC317TF (Lead Free) AMC317STF (Lead Free) AMC317SJF (Lead Free) AMC317SKF (Lead Free) Note: 1.All surface-mount packages are available in Tape & Reel. AMC317STT). 2.The letter “F” is marked for Lead Free process. Copyright © 2006 ADDtek Corp. Append the letter “T” to part number (i.e. 1 DD011_G -- MARCH 2007 AMC317 TYPICAL APPLICATION VIN VOUT AMC317 R1 240Ω ADJ CIN 0.1µF R2 5K COUT 1µF Note 1: CIN is required if the regulator is far from the filter capacitor. Note 2: COUT is recommended to improve the transient response. R2 Note 3: VOUT = 1.25V ( 1+ ) + IADJ (R2) R1 ABSOLUTE MAXIMUM RATINGS (Note 1) Input-Output Differential Voltage VD ……………..…………………………………………………………..20V Operating Junction temperature Plastic (T, ST Package) …………………………………………………………………………………… 150°C Storage Temperature Range ………………………………………………………………………. -65°C to 150°C Lead temperature (Soldering, 10 seconds) ………………………………………………………………….. 300°C Note 1: Exceeding these ratings could cause damage to the device. negative out of the specified terminal. All voltages are with respect to Ground. Currents are positive into, THERMAL DATA T, ST PACKAGE: Thermal Resistance-Junction to Tab, θJT Thermal Resistance-Junction to Ambient, θJA Junction Temperature Calculation: TJ = TA + (PD × θJA). The θJA numbers are guidelines for the thermal performance of the device/pc-board system. All of the above assume no ambient airflow. 3.0°C /W 45°C /W Maximum Power Calculation: TJ(MAX) – TA(MAX) θJA TJ(OC): Maximum recommended junction temperature PD(MAX)= TA(OC): Ambient temperature of the application θJA(OC/W): Junction-to-junction temperature thermal resistance of the package, and other heat dissipating materials. The maximum power dissipation for a single-output regulator is : PD(MAX) = [(VIN(MAX) - VOUT(NOM))] × IOUT(NOM) + VIN(MAX) × IQ Where: VOUT(NOM) = the nominal output voltage IOUT(NOM) = the nominal output current, and IQ = the quiescent current the regulator consumes at IOUT(MAX) VIN(MAX) = the maximum input voltage Then θJA = (150 OC – TA)/PD Copyright © 2006 ADDtek Corp. 2 DD011_G -- MARCH 2007 AMC317 RECOMMENDED OPERATING CONDITIONS Recommended Operating Parameter Symbol Min. Typ. Max. Input-Output differential Voltage VD 3 20 Load Current (with adequate heatsinking) IO 10 1200 Input Capacitor (VIN to GND) 0.1 Output Capacitor with ESR of 10Ω max., (VOUT to GND) 1.0 Units V mA µF µF ELECTRICAL CHARACTERISTICS Unless otherwise specified, these specifications in bold type apply over the operating ambient temperature of 0°C to +70°C, VIN – VOUT = 5V, IOUT = 10mA,CIN = 0.1µF, COUT= 1.0µF, and are for DC characteristics only. (Low duty cycle pulse testing techniques are used which maintains junction and case temperatures equal to the ambient temperature.) Parameter Symbol Reference Voltage VREF Line Regulation (see note 2) VOI Load regulation VOL Minimum Load Current Adjustment Pin Current IOUT(MIN) IADJ Adjustment Pin Current Change IADJ Current Limit ICL Ripple Rejection Ratio (Note 3) RR Output Noise Voltage (Note 3) Long Term Stability (Note 3) Temperature Stability (Note 3) VO RMS Note 2: Note 3: VO(Temp) Test Conditions 3V ≤ VIN – VOUT ≤ 20V, 10mA ≤ IOUT ≤ 1.2A, P ≤ 15W Min. AMC317 Typ. Max. 1.20 3V ≤ VIN – VOUT ≤ 20V,TJ = 25°C 3V ≤ VIN – VOUT ≤ 20V 10mA ≤ IOUT ≤ 1.2A, TJ = 25°C 10mA ≤ IOUT ≤ 1.2A VIN – VOUT ≤ 20V 1.25 1.30 0.01 0.02 0.1 0.3 3.5 50 0.04 0.07 0.5 1.5 10 100 3V ≤ VIN – VOUT ≤ 20V 0.2 10mA ≤ IOUT ≤ 1.2A (VIN – VOUT) ≤ 10V 1.2 2.2 (VIN – VOUT) ≤ 15V 0.8 1.1 (VIN – VOUT) = 20V 0.15 0.4 VOUT = 10V, f = 120Hz 65 VOUT = 10V, f = 120Hz, 10µF 66 80 capacitor between ADJ and GND 0.003 10Hz ≤ f ≤ 10KHz, TJ = 25°C TJ = 125 OC, and VIN – VOUT = 20V 0.3 1 TMIN ≤ TJ ≤ TMAX Units V %/V % mA µA µA 5.0 3.4 A dB % %/1000hr % 1 Line regulation is defined as the percentage change in output voltage every 1V change at the input These parameters, although guaranteed, are not tested in production prior to shipment Copyright © 2006 ADDtek Corp. 3 DD011_G -- MARCH 2007 AMC317 TYPICAL APPLICATIONS AMC317 AMC317 VIN VOUT VIN ADJ VOUT ADJ R1 240 C1 0.1µF C2 0.1µF C2 0.1µF R2 720 C3 1µF R2 5K C1 10µF TTL 1K D1 1N4002 R1 240 5V Logic Regulator with Shutdown Adjustable Regulator with Improved Ripple Rejection (Minimum output ≈ 1.2V) AMC317 AMC317 VOUT ADJ VIN ADJ VIN VOUT R1 1.2 2W C1 0.1µF R1 1.2K R2 20K LOAD 1.2V –20V Regulator with Minimum Current (≈ 4 mA) 1A Current Regulator AMC317 AMC317 VIN ADJ VIN VOUT Rs 0.2 ADJ VOUT 9V – 40V R1 240 R1 240 C1 1000µF R2 2.4K R2 1.1K R3 1 12V Battery Charger Current Limited 6V Charger (Peak Current = 0.6A with 1Ω resistor) Copyright © 2006 ADDtek Corp. 4 DD011_G -- MARCH 2007 AMC317 PACKAGE 3-Pin Plastic TO-220 E INCHES A P F MIN TYP MAX MIN TYP MAX 0.140 - 0.190 3.56 - 4.83 b1 0.045 - 0.070 1.14 - 1.78 b 0.020 - 0.045 0.51 - 1.14 c 0.012 - 0.045 0.30 - 1.14 D 0.560 - 0.650 14.22 - 16.51 E 0.380 - 0.420 9.65 - 10.67 e 0.090 - 0.110 2.29 - 2.79 e1 0.190 - 0.210 4.83 - 5.33 SEATING PLAN Q A H1 D MILLIMETERS L1 F L b1 b c J1 e e1 0.055 0.51 - 1.40 H1 0.230 0.020 - 0.270 5.84 - 6.86 J1 0.080 - 0.115 2.03 - 2.92 L 0.500 - 0.580 12.7 - 14.73 P 0.139 - 0.161 3.53 - 4.09 Q 0.100 - 0.135 2.54 - 3.43 L1 - 0.250 - - 6.35 - 3-Pin Surface Mount TO-263 INCHES E A MIN TYP MAX MIN TYP MAX A 0.160 - 0.190 4.06 - 4.83 b 0.020 - 0.039 0.51 - 0.99 b2 0.045 - 0.055 1.14 - 1.40 c2 D c L L3 L1 b e 0.015 TYP. - 0.055 1.14 - 1.40 D 0.340 - 0.380 8.64 - 9.65 E - 0.405 9.65 - 10.29 L b2 0.380 0.100 BSC 0.575 - 0.625 14.61 - 15.88 - 0.110 - 2.79 - L3 0.050 5 2.54 BSC L1 0.090 L2 Copyright © 2006 ADDtek Corp. 0.38 TYP. c2 0.045 e c MILLIMETERS 2.29 - 0.115 - - 2.92 - 0.070 1.27 - 1.78 DD011_G -- MARCH 2007 AMC317 3-Pin Surface Mount TO-252 (SJ) INCHES MIN TYP MAX MIN TYP MAX 0.086 - 0.094 2.18 - 2.39 A1 0.040 - 0.050 1.02 - 1.27 0.024 - - 0.61 - - 0.215 5.21 - 5.46 0.018 - 0.023 0.46 - 0.58 c1 0.018 - 0.023 0.46 - 0.58 D 0.210 - 0.220 5.33 - 5.59 E - 0.265 6.35 - 6.73 A E b2 A A1 c1 L2 b SEATING PLAN - b2 0.205 D L1 L b e c H MILLIMETERS c e1 0.250 e 0.090 BSC 2.29 BSC e1 0.180 BSC 4.58 BSC H 0.370 - 0.410 9.40 - 10.41 L 0.020 - - 0.51 - - L1 0.025 - 0.040 0.64 - 1.02 L2 0.060 - 0.080 1.52 - 2.03 3-Pin Surface Mount SOT-223 ( SK ) D A c MILLIMETERS B1 H E K L e A1 e1 MIN TYP MAX A 1.50 1.65 1.80 A1 0.02 0.05 0.08 B 0.60 0.70 0.80 B1 2.90 - 3.15 c 0.28 0.30 0.32 D 6.30 6.50 6.70 E 3.30 3.50 3.70 e 2.3 BSC e1 4.6 BSC H 6.70 7.00 7.30 L 0.91 1.00 1.10 K 1.50 1.75 2.00 α 0° 5° 10° β 3° B Copyright © 2006 ADDtek Corp. 6 DD011_G -- MARCH 2007 AMC317 IMPORTANT NOTICE ADDtek reserves the right to make changes to its products or to discontinue any integrated circuit product or service without notice, and advises its customers to obtain the latest version of relevant information to verify, before placing orders, that the information being relied on is current. A few applications using integrated circuit products may involve potential risks of death, personal injury, or severe property or environmental damage. ADDtek integrated circuit products are not designed, intended, authorized, or warranted to be suitable for use in life-support applications, devices or systems or other critical applications. Use of ADDtek products in such applications is understood to be fully at the risk of the customer. In order to minimize risks associated with the customer’s applications, the customer should provide adequate design and operating safeguards. ADDtek assumes to no liability to customer product design or application support. ADDtek warrants the performance of its products to the specifications applicable at the time of sale. ADDtek Corp. 9F, No. 20, Sec. 3, Bade Rd., Taipei, Taiwan, 105 TEL: 2-25700299 FAX: 2-25700196 Copyright © 2006 ADDtek Corp. 7 DD011_G -- MARCH 2007