LT3150CGN#PBF Linear Technology, LT3150CGN#PBF Datasheet
LT3150CGN#PBF
Specifications of LT3150CGN#PBF
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LT3150CGN#PBF Summary of contents
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... Permits LDO Output Voltage Supply Sequencing 16-Lead SSOP Package U APPLICATIO S Microprocessor, ASIC and I/O Supplies Very Low Dropout Input-to-Output Conversion Logic Termination Supplies , LTC and LT are registered trademarks of Linear Technology Corporation. U TYPICAL APPLICATIO 1.8V to 1.5V, 4A Very Low Dropout Linear Regulator (Typical Dropout Voltage = 65mV at I MBR0520L + C1 6 ...
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LT3150 ABSOLUTE AXI U RATI GS (Note SHDN1 Voltage .............................................. 10V IN1 SW Voltage .............................................. – 0.4V to 36V FB1 Voltage ................................................ V Current into FB1, FB2 Pin .................................... 1mA ...
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ELECTRICAL CHARACTERISTICS The denotes specifications which apply over the full operating temperature range, otherwise specifications are 1.5V 12V, GATE = 6V, I IN1 SHDN1 IN1 IN2 SYMBOL PARAMETER A Large-Signal ...
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LT3150 W U TYPICAL PERFOR A CE CHARACTERISTICS Boost Switching Regulator Switch V vs Switch Current CESAT 700 600 500 400 300 200 100 0 0 100 200 300 400 500 600 SWITCH CURRENT (mA) ...
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W U TYPICAL PERFOR A CE CHARACTERISTICS FB2 Line Regulation vs Temperature 0.030 0.025 0.020 0.015 0.010 0.005 0 –75 – 50 – 100 125 150 TEMPERATURE ( C) 3150 G09 Gate Output Swing Low vs ...
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LT3150 W U TYPICAL PERFOR A CE CHARACTERISTICS SHDN2 Source Current vs Temperature –10 – 11 – 12 – 13 – 14 – 15 – 16 – 17 – 18 – 19 – 20 –75 – 50 – ...
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... GND (Pin 6). FB1 (Pin 16): Boost Regulator Feedback Pin. Reference voltage is 1.23V. Connect resistive divider tap here. Minimize trace area at FB1. Set 1.23V(1 + R1/R2). OUT trademark of Linear Technology Corporation. SENSE LT3150 and I pins. A 50mV POS NEG to defeat current limit. An alternative pin. This action disables the current ...
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LT3150 W BLOCK DIAGRA IN1 IN1 R5 R6 40k 40k V IN2 R1 (EXTERNAL) FB1 Q1 Q2 FB1 16 x10 R2 R3 (EXTERNAL) 30k R4 GND 140k SW1 NORMALLY SHDN2 OPEN ...
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U U APPLICATIO S I FOR ATIO INTRODUCTION With each new generation of computing systems, total power increases while system voltages fall. CPU core, logic and termination supplies below 1.8V are now com- mon. Power supplies must not only regulate ...
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LT3150 U U APPLICATIO S I FOR ATIO is low enough such that Q1 and Q2 do not saturate, even when V is 1V. When there is no load, FB1 rises slightly IN1 above 1.23V, causing V (the error amplifier’s ...
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U U APPLICATIO S I FOR ATIO solutions for microprocessor power supplies. This signifi- cant performance benefit is what permits the elimination of all bulk output capacitance. Several other unique features are included in the design that increase its functionality ...
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... W U BOOST REGULATOR COMPONENT SELECTION Diode Linear Technology recommends the use of a Schottky diode with the LT3150. For input supply voltages less than 2V, the Motorola MBR0520 or equivalent is a good choice due to its small size, low cost and low forward voltage. The average diode current equals the V 12mA typically ...
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U U APPLICATIO S I FOR ATIO Table 1. Inductor Vendors VENDOR PHONE Murata (404) 436-1300 www.murata.com Panasonic (800) 344-2112 www.panasonic.com Sumida (847) 956-0666 www.sumida.com Taiyo Yuden (800) 348-2496 www.t-yuden.com Toko (847) 297-0070 V pin. ESR is not critical and ...
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... V DS(ON) package thermal resistance R TH(JA) Linear Technology recommends the use of a logic-level threshold MOSFET in LT3150 applications. The V as defined by the threshold voltage and the load current range, fits well within the boost regulator’s capability and the output swing range of the error amplifier. The MOSFET’s ...
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U U APPLICATIO S I FOR ATIO Frequency Compensation Frequency compensation is the most critical step in de- signing an LT3150 application circuit. Frequency compen- sation stabilizes the feedback loop under all line, load and temperature conditions and determines the ...
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LT3150 U U APPLICATIO S I FOR ATIO P1 = 1/(2 • • R • C1) O AVOL = g • R • REF OUT Z1 = 1/(2 • • R1 • C1 ...
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U TYPICAL APPLICATIO S Setting the Linear Regulator Output Voltage V OUT R2 FB2 1.21V(1 + R2/R1) OUT 3150 TA03 Setting Current Limit I V POS IN1 R * SENSE I NEG Q2 GATE V OUT *I ...
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LT3150 U TYPICAL APPLICATIO 4 4 1.5V to 1.2V, 4A Very Low Dropout Linear Regulator MBR0520L L1 5. LT3150 IN2 FB1 V IN1 SHDN2 SHDN1 1.37k 1% ...
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... FLASH SHALL NOT EXCEED 0.010" (0.254mm) PER SIDE 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. ...
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... MS8 Package RMS P-P : 1.21V, Dropout Voltage: 0.34V 1mA, OUT Q , “A” Version Stable with Ceramic RMS P-P : 2.5V to 5.5V 1.25A 0.8V, IN OUT REF : 2.5V to 5.5V 2.5A 0.8V, IN OUT REF LT/TP 1003 1K • PRINTED IN THE USA LINEAR TECHNOLOGY CORPORATION 2002 3150f ...