LT1301I LINER [Linear Technology], LT1301I Datasheet
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LT1301I
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LT1301I Summary of contents
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FEATURES 12V at 120mA from 5V or 3.3V Supply Supply Voltage as Low as 1.8V Better High Current Efficiency Than CMOS Up to 89% Efficiency 120 A Quiescent Current Shutdown Programmable 5V or 12V Output Low V ...
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... Sense Voltage .......................................................... 20V Shutdown Voltage ................................................... 10V Select Voltage .......................................................... 10V I Voltage ............................................................ 0.5V LIM Maximum Power Dissipation ............................. 500mW Operating Temperature Range LT1301C ................................................... LT1301I .................................................. Storage Temperature Range ................. – 150 C Lead Temperature (Soldering, 10 sec).................. 300 C ELECTRICAL CHARACTERISTICS SYMBOL PARAMETER CONDITIONS I Quiescent Current V ...
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W TYPICAL PERFORMANCE CHARACTERISTICS 5V Output Efficiency 3. 2. 100 LOAD CURRENT (mA) LT1301 G1 Saturation Voltage vs Switch Current 250 ...
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LT1301 PIN FUNCTIONS GND (Pin 1): Signal Ground. Tie to PGND under the package. Sel (Pin 2): Output Select. When tied to V regulates at 12V. When grounded or floating converter regulates at 5V. May be driven ...
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TEST CIRCUITS U OPERATION Operation of the LT1301 is best understood by referring to the Block Diagram in Figure 2. When A1’s negative input, related to the Sense pin voltage by the appropriate resis- tor-divider ratio is higher that the ...
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LT1301 U U APPLICATIONS INFORMATION V OUT 100mV/DIV AC COUPLED V SW 10V/DIV I L 500mA/DIV 20 s/DIV 12V OUT 90mA OUT LOAD Figure ...
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U U APPLICATIONS INFORMATION Table 1. Recommended Inductors PART NUMBER VENDOR DCR ( ) V DO3316-333 Coilcraft 33 DO1608-223 Coilcraft 22 DO1608-103 Coilcraft 10 CTX20-1 Coiltronics 20 GA10-332 Gowanda 33 LQH3G220K04M00 Murata-Erie 22 CD73-330KC Sumida 33 CDRH62-330MC ...
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LT1301 U U APPLICATIONS INFORMATION Capacitor Selection Low ESR capacitors are required for both input and output of the LT1301. ESR directly affects ripple voltage and efficiency. For surface mount applications AVX TPS series tantalum capacitors are recommended. These have ...
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U TYPICAL APPLICATIONS 100µ DALE LPE-5047-AO45 (605) 665-9301 SENSE NC LT1301 0.1µF SHDN GND SHUTDOWN T1 = COILTRONICS CTX110654 COILCRAFT D03316-473 N ...
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LT1301 U TYPICAL APPLICATIONS 5V + 33µ COILTRONICS CTX33 – 5V Converter L1 33µ 1N965 1N5817 1 4 1N4148 SELECT SHDN NC SHUTDOWN LT1301 OR 0.1µF LT1300 NC SENSE ...
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PACKAGE DESCRIPTION 0.300 – 0.320 (7.620 – 8.128) 0.009 – 0.015 (0.229 – 0.381) +0.025 0.325 –0.015 (1.143 ± 0.381) +0.635 8.255 –0.381 0.010 – 0.020 45 (0.254 – 0.508) 0.008 – 0.010 0°– 8° TYP (0.203 – 0.254) 0.016 ...
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LT1301 NORTHEAST REGION Linear Technology Corporation One Oxford Valley 2300 E. Lincoln Hwy.,Suite 306 Langhorne, PA 19047 Phone: (215) 757-8578 FAX: (215) 757-5631 Linear Technology Corporation 266 Lowell St., Suite B-8 Wilmington, MA 01887 Phone: (508) 658-3881 FAX: (508) 658-2701 ...