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Pb Free Plating Product
ISSUED DATE :2005/04/14 REVISED DATE :2005/10/04B
G S S 11 2 0
Description
Dual 1A Low Dropout Positive Regulator
The GSC1120 series are low dropout positive regulator with minimum of 1A output current capability. The product is specifically designed to provide well-regulated supply for low voltage IC applications such as high speed bus termination and low current 3.3V/2.5V or 3.3V/1.8V logic supply. GSC1120 series and guaranteed to have <1.3V dropout at full load current making it ideal to provide well regulated outputs dual channels with up to 18V input supply.
Features & 1.3Vmaximum dropout at full load current
&Fast transient response &Output current limiting for each channel &Built-in thermal shutdown each channel &Good noise rejection &Dual output A: ch1=3.3V, ch2=2.5V B: ch1=3.3V, ch2=1.8V
Pin Descriptions
Name GND 1/2
Function Ground
3.3V (Vout1) The output of the regulator. A minimum of 10 F capacitor 2.5V/1.8V (0.15 ESR 20 ) must be connected from this pin to ground to insure stability. (Vout2) Vin 1/2
The input pin of regulator. Typical a large storage capacitor (0.15 ESR 20 ) is connected form this pin to ground.
Applications & peripheral PC
&Communication
Package Dimensions
REF. A B C D E F
Millimeter Min. Max.
5.80 4.80 3.80 0C 0.40 0.19 6.20 5.00 4.00 8C 0.90 0.25
REF. M H L J K G
Millimeter Min. Max.
0.10 0.25 0.35 0.49 1.35 1.75 0.375 REF. 45 C 1.27 TYP.
Typical Circuit
Block Diagram
GSS1120
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ISSUED DATE :2005/04/14 REVISED DATE :2005/10/04B
Absolute Maximum Ratings
Symbol VIN PD TST TOP Parameter DC Supply Voltage Power Dissipation Storage Temperature Operating Junction Temperature Range Ratings -0.3 to 12 Internally Limited -65 ~ + 150 0 ~ + 150 Unit V : :
Electrical Characteristics
Parameter
GSC1120A(B)-VOUT1 Output Voltage Line Regulation Load Regulation Dropout Voltage (VIN-VOUT) Current Limit Minimum Load Current Thermal Regulation Ripple Rejection Temperature Stability GSC1120A-VOUT2 GSC1120B-VOUT2 GSC1120-VOUT1 GSC1120-VOUT2 Conditions Io=10mA, TJ=25 , 4.8V VIN 12V Io=10mA, TJ=25 , 4.0V VIN 12V Io=10mA, TJ=25 , 4.0V VIN 12V VIN=5V, 0mA> 5.5mm*5.5mm (like 10mm*10mm).
GSS1120
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ISSUED DATE :2005/04/14 REVISED DATE :2005/10/04B
Typical Performance Characteristics
Important Notice: All rights are reserved. Reproduction in whole or in part is prohibited without the prior written approval of GTM. GTM reserves the right to make changes to its products without notice. GTM semiconductor products are not warranted to be suitable for use in life-support Applications, or systems. GTM assumes no liability for any consequence of customer product design, infringement of patents, or application assistance. Head Office And Factory: Taiwan: No. 17-1 Tatung Rd. Fu Kou Hsin-Chu Industrial Park, Hsin-Chu, Taiwan, R. O. C. TEL : 886-3-597-7061 FAX : 886-3-597-9220, 597-0785 China: (201203) No.255, Jang-Jiang Tsai-Lueng RD. , Pu-Dung-Hsin District, Shang-Hai City, China TEL : 86-21-5895-7671 ~ 4 FAX : 86-21-38950165
GSS1120
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