LT1108CS8-5 Linear Technology, LT1108CS8-5 Datasheet
LT1108CS8-5
Specifications of LT1108CS8-5
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LT1108CS8-5 Summary of contents
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FEATURE S Operates at Supply Voltages from 2V to 30V Consumes Only 110 A Supply Current Works in Step-Up or Step-Down Mode Only Four External Components Required Low Battery Detector Comparator On-Chip User Adjustable Current Limit Internal 1A Power Switch ...
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... REF I = 100 SINK SET 30V 3V 650mA 5V ORDER PART NUMBER TOP VIEW FB (SENSE*) 8 LT1108CS8 SET 7 LT1108CS8 LT1108CS8-12 GND 5 S8 PART MARKING S8 PACKAGE 1108 10805 = 150 C/W JA 10812 MIN TYP MAX 110 150 135 250 2 12.6 30.0 1.2 1.245 1.3 4.75 5 5.25 11 ...
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ELECTRICAL C HARA TERISTICS C SYMBOL PARAMETER V SW Voltage, Step-Down Mode SAT SAT A Gain Block Gain V Current Limit Current Limit Temperature Coefficient Switch OFF Leakage Current V Maximum Excursion Below GND SW2 The denotes specifications which apply ...
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LT1108 W U TYPICAL PERFOR A Oscillator Frequency –50 – 100 TEMPERATURE (°C) LT1108 • TPC07 Minimum/Maximum Frequency vs ON-Time ...
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UO 1 OPER ATI The LT1108 is a gated oscillator switcher. This type architecture has very low supply current because the switch is cycled when the feedback pin voltage drops below the reference voltage. Circuit operation can best be understood ...
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LT1108 PPLICATI S I FOR ATIO INDUCTOR SELECTION General A DC/DC converter operates by storing energy as mag- netic flux in an inductor core, and then switching this energy into the load. Since it is flux, ...
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PPLICATI S I FOR ATIO Energy required from the inductor is P 315 kHz OSC Picking an inductor value of 100 H with 0.2 DCR results in a ...
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LT1108 PPLICATI S I FOR ATIO In this mode the switch is arranged in common collector or step-down mode. The switch drop can be modeled as a 0.75V source in series with a 0.65 resistor. When ...
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PPLICATI S I FOR ATIO OUT I t PEAK ON L When the switch turns off, the SW2 pin falls rapidly and actually goes below ground. D1 turns on when SW2 ...
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LT1108 PPLICATI S I FOR ATIO A provided by the PNP transistor, supplies proper polarity feedback information to the regulator SW1 LIM LT1108 L1 SW2 GND D1 1N5818 ...
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... The addition however will change the trip point. 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 its circuits as described herein will not infringe on existing patent rights. W ...
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... L1 = COILTRONICS CTX100-4 0.400 (10.160) MAX 0.250 ± 0.010 (6.350 ± 0.254 0393 0.189 – 0.197 (4.801 – 5.004 0.228 – 0.244 (5.791 – 6.197) (3.810 – 3.988) SO8 0393 LT/GP 0493 10K REV 0 LINEAR TECHNOLOGY CORPORATION 1993 IN IN 0.150 – 0.157 ...