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| GMT Ave. 2 , Science-Based Industrial Park, Hsin-Chu, Taiwan, R.O.C. Tel:03-578883311 6Fax:03-5784289 6F, No. 11, Park : 0 G955 Data Sheet Global Media Technology Inc. Jan-1999 Rev.0 No. EDS-955-028A GMT Ave. 2 , Science-Based Industrial Park, Hsin-Chu, Taiwan, R.O.C. Tel:03-578883311 6Fax:03-5784289 6F, No. 11, Park : 1 G955 2.85V 1A Low Dropout Regulator General Description The G955 positive 2.85V voltage regulator features the ability to source 1A of output current with a dropout voltage of typically 0.5V over the entire operating temperature range. A low quiescent current is provided over the entire current output current range. The typical quiescent current is 0.4mA. Furthermore, the quiescent current is smaller when the regulator is in the dropout mode ( VIN < 2.85V). Familiar regulator features such as over temperature, over current, and over voltage protection circuits are provided to prevent it from being damaged by abnormal operating conditions. Features Dropout voltage typically 0.5V @ IO = 1A Output current in excess of 1A Output voltage accuracy +2% Quiescent current, typically 400A Internal short circuit current limit Internal over temperature protection Internal over voltage protection Typical Application VIN G955 C1 .47F IO VOUT IQ COUT 10F Absolute Maximum Ratings (Note 1) Input Voltage 10V Internal Power Dissipation(Note 2) Internally Limited Maximum Junction Temperature 150 Storage Temperature Range -65 TJ +150 Lead Temperature, Time for Wave Soldering TO-220 (T) Package 260,10s TO-252 (T) Package TO-263 (S) Package ESD Susceptibility (Note 3) 260, 4s 260, 4s 2kV Operating Conditions (Note 1) Input Voltage -0.3V~10V Temperature Range 0 TA 125 Pin Configuration Package Pin No. TO-220 VIN GND VOUT GND VOUT VIN VIN GND VOUT TO-252 GND VOUT VIN VIN GND VOUT TO-263 GND VOUT VIN 1 2 3 Global Media Technology Inc. Jan-1999 Rev.0 No. EDS-955-028A GMT Ave. 2 , Science-Based Industrial Park, Hsin-Chu, Taiwan, R.O.C. Tel:03-578883311 6Fax:03-5784289 6F, No. 11, Park : 2 Electrical Characteristics VIN =5V, IO = 1A, CO = 10 F, unless otherwise specified. Boldface limits apply over entire operating temperature range. All other specifications apply for TA = TJ = 25. Conditions 5mA < IO <1A 3.5V < VIN < 9.5V IO = 10mA Line Transient VIN = 4.5V - 6.5V Response Time IO = 10mA Line Transient VIN = 4.5V - 6.5V Output Variation IO = 10mA Load Transient VIN = 5V Response Time IO = 10mA - 1A Load Transient VIN = 5V Output Variation IO = 10mA - 1A Load Regulation 50mA < IO < 1A Output Impedance 100mA DC and 20mA AC, fO= 120Hz Quiescent Current 3.5V < VIN < 9.5V 5mA < IO < 1A Output Noise 10Hz - 100KHz, Voltage IO = 5mA Ripple Rejection fO = 120 - 1KHz, 1VRMS, Io = 100mA Long Term Stability 1000 hours Dropout Voltage IO = 1A IO = 100mA Short Circuit Current Maximum Line Ro = 100,T<20ms Transient Reverse Polarity Ro = 100 DC Input Voltage Reverse Polarity Ro = 100,T<20ms Transient Input Voltage Over Voltage Trigger Voltage Parameter Output Voltage Line Regulation Min 2.79 Typ 2.85 20 20 60 100 100 35 35 0.4 150 56/54 58 20 0.5 100 1.9 10 0.6 1 Max 2.91 50/70 30/40 80/100 130/150 130/150 50/80 Units V mV ms mV ms mV mV m mA mVRMS dB mV V mV A V V V 0.8/1.0 0.8/0.9 150/200 1.6 12 1 2 9 10 11 V Global Media Technology Inc. Jan-1999 Rev.0 No. EDS-955-028A GMT Ave. 2 , Science-Based Industrial Park, Hsin-Chu, Taiwan, R.O.C. Tel:03-578883311 6Fax:03-5784289 6F, No. 11, Park : 3 Note 1: Absolute Maximum Ratings are limits beyond which damage to the device may occur. Operating Conditions are conditions under which the device functions but the specifications might not be guaranteed. For guaranteed specifications and test conditions see the Electrical Characteristics. Note 2: The maximum allowable power dissipation is a function of the maximum junction temperature, TJ, the junction-to-ambient thermal resistance, J A, and the ambient temperature, TA. Exceeding the maximum allowable power dissipation will cause excessive die temperature, and the regulator will go into thermal shutdown. The value of J A (for device in still no heatsink) is 60/W for the TO-220 package. 80/W for the TO-263 package, 174/W for the SOT-223 and SOT-89 package. The effective value of J A can be reduced by using a heatsink (see Application Hints for specific information on heatsinking). The values of J A and J C for the K02A package are 39/W and 4/W respectively. Note 3: ESD rating is based on the human body model, 100pF discharged through 1.5k. Physical Dimensions Unit : Inches(Millimeters) 0.410 0.010 (10.41 0.25) 0.818 0.005 (2.74 0.13) 0. 151 0.005 (3.84 0.13) 0. 176 0.005 4. 47 0.13 0. 050 0.005 (1.27 0.13) 0.590 0.005 7 0.818 0.005 (20.78 0.13) 0.356 0.005 (9.04 0.13) 7 3 1.140 0.010 (28.96 0.25) 0.100 0.020 (2.54 0.51) 0.050 0.003 (1.27 0.8) 0.100 0.005 (2.54 0.13) 0.030 0.003 (0.76 0.08) 0.018 0.008 (0.46 0.020) 3-Lead TO-220 Package Global Media Technology Inc. Jan-1999 Rev.0 No. EDS-955-028A GMT Ave. 2 , Science-Based Industrial Park, Hsin-Chu, Taiwan, R.O.C. Tel:03-578883311 6Fax:03-5784289 6F, No. 11, Park : 4 T B R V 4 A 1 S 2 3 K F L D G 2 PL 0.13 (0.005) M T SEATING PLANE E C Z U J H TO-252 Package Notes: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION : INCH DIM A B C D E F G H J K L R S U V Z IMCHES MIN 0.235 0.250 0.086 0.027 0.033 0.037 0.180BSC 0.034 0.018 0.102 0.090BSC 0.175 0.020 0.020 0.030 0.138 0.215 0.050 --0.050 --0.040 0.023 0.114 MAX 0.250 0.265 0.094 0.035 0.040 0.047 MILLIMETERS MIN MAX 5.97 6.35 6.35 6.73 2.19 2.38 0.69 0.88 0.84 1.01 0.94 1.19 4.58BSC 0.87 1.01 0.46 0.58 2.60 2.89 2.29BSC 4.45 6.46 0.51 1.27 0.51 --0.77 1.27 3.51 --- Global Media Technology Inc. Jan-1999 Rev.0 No. EDS-955-028A GMT Ave. 2 , Science-Based Industrial Park, Hsin-Chu, Taiwan, R.O.C. Tel:03-578883311 6Fax:03-5784289 6F, No. 11, Park : 5 10 o 3 o TYP 0.090-0.110 TYP [2.29-2.79] 0.575 [14.61] 0.085 [2.16] 0.260-0.280 [6.60-7.11] 0.390-0.410 [9.91-10.41] 0.425 [10.80] 0.100 [2.54] 0.410 [10.41] LEAD POSITION OVERLAY 0.028-0.038 TYP [0.71-0.97] 0.330-0.350 [8.38-8.89] PIN #1 ID 0.042 TYP [1.07] 0.050 [1.27] MAX 7 o 7 o R 0.030 MAX TYP [0.76] 0.015-0.030 [0.38-0.76] 0.035 [0.89] 0.200 MIN [5.08] -M0.048-0.052 [1.22-1.32] TAPERED o SIDES 1 o o 0 -6 0.000-0.006 [0.00-0.15] STAND-OFF 0.490 MAX [12.45] 0.565 MAX [14.35] Global Media Technology Inc. ~ 0 o 0.175-0.183 [4.45-4.65] 0.004[0.10] o 0.200 MIN [5.08] -6 BACK VIEW 3-Lead TO-263 Surface Mount Package Jan-1999 Rev.0 No. EDS-955-028A |
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