SJ1212

SJ1212 1 A Low Dropout Positive Elektronische Bauelemente RoHS Compliant Product Low Dropout Linear Regulator Description The SJ1212 is a low dropout positive 1.2V output regulator with min. of 1A output current capability. The product is specifically designed to provide well-regulated supply for low voltage IC applications. The device is also well suited for other applications such as VGA cards. SJ1212 is guaranteed to have lower than 1.4V dropout at full load current making it ideal to provide well-regulated outputs of 1.2V with 2.6V to 12V input supply. TO-252 Features 1.4V max. dropout voltage Fixed 1.2V +/- 2% output voltage Output current limiting Good noise rejection Fast transient response Built-in thermal shutdown REF. A B C D E F S Millmeter Min. Max. 6.40 6.80 5.20 5.50 6.80 7.20 2.20 2.80 2.30 REF. 0.70 0.90 0.60 0.90 REF. G H J K L M R Millmeter Min. Max. 0.50 0.70 2.20 2.40 0.45 0.55 0 0.15 0.90 1.50 5.40 5.80 0.80 1.20 APPLICATIONS PC peripheral Communication TYPICAL CIRCUIT in=3.3V out=1.2 GJ1212 Gn d http://www.SeCoSGmbH.com/ Any changing of specification will not be informed individual 01-Jun-2002 Rev. A Page 1 of 3 SJ1212 Elektronische Bauelemente 1 A Low Dropout Positive Low Dropout Linear Regulator BLOCK DIAGRAM PIN DESCRIPTIONS NAME Gnd Vout I/O PIN # 1 2 FUNCTION A resistor divider fromt his pin to the Vout pin and ground sets the output voltage. The output of the regulator. A min. of 10 µF capacitor (0.1 Ω ≦ ESR ≦ 20 Ω) must be connected from this pin to ground to insure stability. The input pin of regulator. Typically a large storage capacitor (0.1Ω≦ ESR≦ 20Ω) is connected from this pin to ground to insure that the input voltage does not sag below the min. dropout voltage during the load transient response. This pin must always be 1.4 V higher than Vout inorder for the device to regulate properly. O Vin I 3 ABSOLUTE MAXIMUM RATINGS PARAMETER DC Supply Voltage Power Dissipation TA = 25 C Storage Temperature Max. Junction Temp., Operating Junction Temperature Range O SYMBOL Vin PD TST TOP, TMJ RATINGS -0.3 ~ 15 1050 -65 ~ +150 150, 0 ~ +125 UNIT V mW O O C C ELECTRICAL CHARACTERISTICS (under operating conditions) PARAMETER Operation Input Voltage Output Voltage Line Regulation Load Regulation Dropout Voltage (VIN - VOUT) Current Limit Quiescent Current Ripple Rejection Temperature Stability θJA Thermal Resistance Junction-to-Ambient (No heat sink; No air flow) θJC Thermal Resistance Junction-to-Case Min. 2.6 1.175 1.1 Typ. 1.200 0.1 1.3 60 0.5 92 Max. 12 1.225 0.5 1 1.4 12 70 o UNIT V V % % V A mA dB % TEST CONDITI ONS W W Io=10mA, TJ=25 oC,2.6V ≦ Vin ≦ 12V o Io=10mA, 2.6V ≦ Vin ≦ 12V, TJ=25 C (Note) o Vin=2.6V, 0mA ≦ Io ≦1A, TJ=25 C (Note) Io=1A, (∆Vout=0.1% Vout) Vin - Vout = 5V Vin=12V, Io=0mA F=120Hz, Cout=25µF Tantalum, Iout=1A, Vin=5V Io-10mA C/W - 10 - o C/W Note: Line and load regulation are guaranteed up to the max. PD of 15W, PD is determined by the difference in input and output and the Io. Guaranteed max. PD will not be available over the full input/output range. h tp://www.SeCoSGmbH.com/ Any changing of specification will not be informed individual 01-Jun-2002 Rev. A Page 2 of 3 SJ1212 Elektronische Bauelemente 1 A Low Dropout Positive Low Dropout Linear Regulator TYPICAL CHARACTERISTICS h tp://www.SeCoSGmbH.com/ Any changing of specification will not be informed individual 01-Jun-2002 Rev. A Page 3 of 3