LT1110CS8-5 Linear Technology, LT1110CS8-5 Datasheet
LT1110CS8-5
Specifications of LT1110CS8-5
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LT1110CS8-5 Summary of contents
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FEATURE S Operates at Supply Voltages From 1.0V to 30V Works in Step-Up or Step-Down Mode Only Three External Off-the-Shelf Components Required Low-Battery Detector Comparator On-Chip User-Adjustable Current Limit Internal 1A Power Switch Fixed or Adjustable Output Voltage Versions Space-Saving ...
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... V 12V ORDER PART TOP VIEW NUMBER FB (SENSE)* 8 SET 7 LT1110CN8 A0 6 LT1110CN8-5 GND 5 LT1110CN8-12 N8 PACKAGE = 130 C/W JA TOP VIEW LT1110CS8 LT1110CS8 (SENSE)* 7 SET LT1110CS8- PART MARKING GND 5 1110 S8 PACKAGE 11105 11012 = 150 C/W JA MIN TYP MAX 300 1.15 12.6 1.0 12.6 ...
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ELECTRICAL C HARA TERISTICS C SYMBOL PARAMETER V Switch Saturation Voltage CESAT Step-Up Mode A A2 Error Amp Gain V I Reverse Battery Current REV I Current Limit LIM Current Limit Temperature Coefficient I Switch OFF Leakage Current LEAK V ...
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LT1110 W U TYPICAL PERFOR A Duty Cycle –50 – 100 TEMPERATURE ( C) LT1110 • TPC04 Switch On Voltage Step-Down Mode 1 ...
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W U TYPICAL PERFOR A Set Pin Bias Current 160 140 120 100 –50 – 100 TEMPERATURE ( C) LT1110 • TPC13 ...
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LT1110 O U LT1110 OPER ATI The LT1110 is a gated oscillator switcher. This type architecture has very low supply current because the switch is cycled only when the feedback pin voltage drops below the reference voltage. Circuit operation can ...
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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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LT1110 PPLICATI S I FOR ATIO Picking an inductor value with 0.2 DCR results in a peak switch current ...
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PPLICATI S I FOR ATIO switch closes, current in the inductor builds according to – – where R' = 0.65 + DCR L V ...
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LT1110 PPLICATI S I FOR ATIO A Diode Selection Speed, forward drop, and leakage current are the three main considerations in selecting a catch diode for LT1110 converters. General purpose rectifiers such as the 1N4001 are unsuitable ...
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PPLICATI S I FOR ATIO dissipation inside the LT1110. Output voltage is deter- mined 220 mV . OUT programs switch current limit. This is especially im- portant in ...
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LT1110 PPLICATI S I FOR ATIO Using the I Pin LIM The LT1110 switch can be programmed to turn off at a set switch current, a feature not found on competing devices. This enables the input ...
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PPLICATI S I FOR ATIO Arrangement of the gain block as a low battery detector is straightforward. Figure 12 shows hookup. R1 and R2 need only be low enough in value so that the bias current ...
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... CURRENT DRAIN FROM 1.5V CELL (50mA DIODE) • NO OVERSHOOT 14 S All Surface Mount Flash Memory V Generator PP L1 MMBT4403 10k I V LIM IN SW1 22 F LT1110CS8-12 1k SENSE GND SW2 MMBF170 *L1= SUMIDA CD105-470M 1.5V Powered Laser Diode Driver 220 4.7k + 2N3906 MJE210 LIM ...
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... F = MBRL120 *L1 = COILCRAFT 1812LS-823 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. S MBRL120 5V 40mA ...
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... BSC : 499-3977 0.400 (10.160) MAX 0.250 ± 0.010 (6.350 ± 0.254 0.189 – 0.197* (4.801 – 5.004 0.150 – 0.157* 0.228 – 0.244 (3.810 – 3.988) (5.791 – 6.197 LT/GP 0594 2K REV B • PRINTED IN USA LINEAR TECHNOLOGY CORPORATION 1994 ...