lt1123cz-pbf Linear Technology Corporation, lt1123cz-pbf Datasheet
lt1123cz-pbf
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lt1123cz-pbf Summary of contents
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... Total quiescent current for the LT1123 is only 700µA. The device is available in a low cost TO-92 package. , LTC and LT are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. 0.5 MOTOROLA ...
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... V = 0.5V DRIVE 10mA 4.5V DRIVE 125mA 4.5V DRIVE FB 5V < V < 20V DRIVE ∆ 100mA DRIVE ORDER PART NUMBER FB GND LT1123CZ Z PACKAGE = 125°C, θ = 220°C MIN TYP MAX 4.90 5.00 5.10 ● 4.80 5.00 5.20 ● 300 500 ● 0.45 1.0 ● 125 170 25 ...
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W U TYPICAL PERFOR A Feedback Pin Bias Current vs Temperature 400 300 200 100 100 125 TEMPERATURE (°C) LT1123 G01 Feedback Pin Bias Current vs Feedback Pin Voltage 500 400 300 ...
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LT1123 CTIO S All internal circuitry connected to the drive pin is designed to operate at the saturation voltage of the Darlington output driver (1.4 to 2V). This allows a resistor to be inserted between ...
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U U APPLICATIO S I FOR ATIO The LT1123 is designed to be used in conjunction with an external PNP transistor. The overall specifications of a regulator circuit using the LT1123 and an external PNP will be heavily dependent on ...
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LT1123 U U APPLICATIO S I FOR ATIO Dropout Voltage DRIVE CURRENT OUTPUT CURRENT 20mA 1A 50mA 1A 2A 120mA 1A 4A 1.0 BASED ON MJE1123 SPECS 0. 120mA DRIVE 0. 20mA DRIVE 0. ...
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U U APPLICATIO S I FOR ATIO The following assumptions were made in calculating the data for the curves. Resistors are 5% tolerance and the values shown on the curve are nominal. For 20mA drive current assume 0.95V ...
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LT1123 U U APPLICATIO S I FOR ATIO The curve in Figure 6 can be used to determine the range of current limit of an LT1123 regulator circuit using an MJE1123 as a pass transistor. The curve was generated using ...
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U U APPLICATIO S I FOR ATIO voltage and resistor value. Power dissipation can be calculated using the following formula – V – DRIVE = where emitter/base voltage ...
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LT1123 U U APPLICATIO S I FOR ATIO PNP. If the output of the regulator circuit can be shorted, heat sinking must be adequate to limit the rate of tempera- ture rise of the power device to approximately 50°C/ minute. ...
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U TYPICAL APPLICATIO S Isolated Feedback for Switching Regulators V IN SWITCHING REGULATOR DRIVE LT1123 FB GND 5V/2A Regulator with Remote Sensing 600Ω 75Ω 7V DRIVE LT1123 1k 5V OUTPUT LT1123 TA03 5V Regulator with Antisat Miminizes Ground Pin Current ...
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LT1123 U TYPICAL APPLICATIO S 12 5V/1A Regulator with Shutdown 6V GEL CELL 620Ω 50k OFF 1/6 MM74C906 MPSA12 (OPEN COLLECTOR DRIVE OUTPUT) LT1123 FB + GND Undervoltage Indicator On for V < ...
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U TYPICAL APPLICATIO S INTERNAL BATTERY GEL CELL Battery Backup Regulator + 10µF 620Ω 620Ω ALUM 6V MJE1123 1N4148 1N4148 20Ω DRIVE 5V OUTPUT LT1123 FB + 10µF GND ALUM LT1123 TA07 Adjusting V OUT 620Ω V > ...
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LT1123 PACKAGE DESCRIPTIO .264 – .287 (6.70 – 7.30) .130 – .146 (3.30 – 3.71) .0905 (2.30) BSC .071 (1.80) MAX Package 3-Lead Plastic SOT-223 (Reference LTC DWG # 05-08-1630) .248 – .264 (6.30 – 6.71) .114 ...
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... NOM Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen- tation that the interconnection of circuits as described herein will not infringe on existing patent rights Package 3-Lead Plastic TO-92 (Similar to TO-226) (Reference LTC DWG # 05-08-1410) .180 ± ...
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... R3 R5 10V 10V 1.5k 1.5k MJE1123 MJE1123 MJE1123 R4 R6 820Ω 820Ω + LT1123 TA06 10µF 10V *PACKS WILL SHARE CURRENT REF = 30µ 20µA Q LT/LWI/LT 0505 REV B • PRINTED IN USA © LINEAR TECHNOLOGY CORPORATION 1992 10µF 10V 5V/1A OUTPUT 1123fb ...