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ISSUED DATE :2006/06/07 REVISED DATE :
The GJ1118 is a low dropout at positive adjustable or fixed-mode regulator with minimum of 0.8A 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 logic supply. GJ1118 is also well suited for other applications such as VGA cards. GJ1118 is guaranteed to have lower than 1.3V dropout at full load current making it ideal to provide well regulated outputs of 1.25V to 5.0V with up to 12V input supply.
0.8A Low Dropout Positive Adjustable or Fixed-Mode Regulator Description
G J 111 8
Features & 1.4Vmaximum dropout full load current
&Fast transient response &Output current limiting &Built-in thermal shutdown &Good noise rejection &3-Terminal Adjustable or Fixed 1.5V,1.8V,2.5V,3.3V,5.0V
Applications & peripheral PC
&Communication
Package Dimensions TO-252
REF. A B C D E F S
Millimeter Min. Max. 6.40 6.80 5.20 5.50 6.80 7.20 2.40 3.00 2.30 REF. 0.70 0.90 0.60 0.90
REF. G H J K L M R
Millimeter 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
Typical Circuit
3.3V /0.8A
2.5V/0.8A
GJ1118
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ISSUED DATE :2006/06/07 REVISED DATE :
Block Diagram
Pin Descriptions
Name Adj (GND) Vout Vin O I I/O Pin# 1 2 3 Function A resistor divider from this pin to the Vout pin and ground sets the output voltage (Ground only for fixed mode) The output of the regulator. A minimum of 10uF capacitor (0.15 ESR 20 ) must be connected from this pin to ground to insure stability. ESR 20 ) The input pin of regulator. Typically a large storage capacitor (0.15 is connected from this pin to ground to insure that the input voltage does not sag below the minimum dropout voltage during the load transient response. This pin must always be 1.3V higher than Vout in order for the device to regulate properly.
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 : :
GJ1118
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ISSUED DATE :2006/06/07 REVISED DATE :
Electrical Characteristics
Parameter
Reference Voltage GJ1118ADJ GJ1118-1.5 GJ1118-1.8 Output Voltage GJ1118-2.5 GJ1118-3.3 GJ1118-5.0 Line Regulation GJ1118-XXX GJ1118ADJ GJ1118-1.5 Load Regulation GJ1118-1.8 GJ1118-2.5 GJ1118-3.3 GJ1118-5.0 Dropout Voltage (VIN-VOUT) Current Limit Minimum Load Current Adjust Pin Current Quiescent Current Thermal Regulation Ripple Rejection GJ1118-XXX GJ1118-XXX
Adjustable model Adjustable model
Conditions
Io=10mA, TJ=25 : , (VIN-VOUT)=1.5V Io=10mA, TJ=25 : , 3.0V VIN 12V Io=10mA, TJ=25 : , 3.3V VIN 12V Io=10mA, TJ=25 : , 4.0V VIN 12V Io=10mA, TJ=25 : , 4.8V VIN 12V Io=10mA, TJ=25 : , 6.5V VIN 12V Io=10mA, VOUT+1.5V< VIN <12V, TJ=25 : VIN=3.3V, Vadj=0, 0mA< Io <0.8A, TJ=25 :
(Note 1,2)
Min
Typ
Max Unit V V V V V V % % mV mV mV mV mV V A mA uA mA
1.225 1.250 1.275 1.470 1.500 1.530 1.764 1.800 1.836 2.450 2.500 2.550 3.235 3.300 3.365 4.900 5.000 5.100 0.9 12 15 20 26 40 1.2 5 50 0.2 1 15 18 25 33 50 1.4 10 100 12
VIN=3.0V, 0mA< Io <0.8A, TJ=25 : (Note 1,2) VIN=3.3V, 0mA< Io <0.8A, TJ=25 : (Note 1,2) VIN=4.0V, 0mA< Io <0.8A, TJ=25 : (Note 1,2) VIN=5.0V, 0mA< Io <0.8A, TJ=25 : (Note 1,2) VIN=8.0V, 0mA< Io <0.8A, TJ=25 : (Note 1,2) Io=0.8A ( VOUT =0.1% VOUT) VIN-VOUT=5V Vin=5V Vin=12V, Io=10mA Vin=12V, Io=0mA
fixed model
TA=25 : ,30ms pulse F=120Hz, COUT=25uF Tantalum, IOUT=0.8A GJ1118-XXX VIN=VOUT+3V
0.008 0.04 %/W 60 70 dB
Temperature Stability IO=10mA 0.5 % JA Thermal Resistance Junction-to-Ambient(No 92 : /W heat sink ;No air flow) JC Thermal Resistance Control Circuitry/Power Transistor 10 : /W Junction-to-Case Note 1: See thermal regulation specifications for changes in output voltage due to heating effects. Line and load regulation are measured at a constant junction temperature by low duty cycle pulse testing. Load regulation is measured at the output lead =1/18" from the package. Note 2: Line and load regulation are guaranteed up to the maximum power dissipation of 15W. Power dissipation is determined by the difference between input and output and the output current. Guaranteed maximum power dissipation will not be available over the full input/output range.
GJ1118
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ISSUED DATE :2006/06/07 REVISED DATE :
Characteristics Curve
I load=800mA
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
GJ1118
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