LTC3401EMS Linear Technology, LTC3401EMS Datasheet
LTC3401EMS
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LTC3401EMS Summary of contents
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... MSOP package. Higher current appli- cations should use the 2A rated LTC3402 synchronous boost converter. Applications that require V should use the LTC3423. , LT, LTC and LTM are registered trademarks of Linear Technology Corporation. Burst Mode and OPTI-LOOP are registered trademarks of Linear Technology Corporation. V OUT 3 ...
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... SHDN = 0V, Not Including Switch Leakage V = 0V, MODE/SYNC = 0V 300k (Note 15k 15k 5.5V MODE/SYNC ΔI = – 5μA to 5μ Referenced to Feedback Voltage U W ORDER PART NUMBER 10 SHDN LTC3401EMS OUT 6 PGOOD MS PART MARKING = 125°C LTPG = 25°C. A MIN TYP MAX 0.85 1.0 ● 0.5 ● 2.6 5.5 ● ...
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ELECTRICAL CHARACTERISTICS The ● denotes specifications that apply over the full operating temperature range, otherwise specifications are 1.2V 3.3V unless otherwise noted. IN OUT PARAMETER PGOOD Low Voltage PGOOD Leakage SHDN Input High SHDN ...
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LTC3401 W U TYPICAL PERFOR A CE CHARACTERISTICS Transient Response 50mA to 500mA V OUT 200mV/DIV 550mA I OUT 50mA C = 22μF 200μs/DIV OUT 3401 G04 L = 3.3μ 1MHz OSC Converter Efficiency 1.2V to 3.3V 100 ...
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W U TYPICAL PERFOR A CE CHARACTERISTICS EA FB Voltage 1.28 1.27 1.26 1.25 1.24 1.23 1.22 –55 – 105 TEMPERATURE (°C) 3401 G13 PMOS R DS(ON) 0. 3.3V OUT 0.25 0.20 0.15 0.10 0.05 –55 ...
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LTC3401 CTIO S R (Pin 1): Timing Resistor to Program the Oscillator t Frequency • OSC R t MODE/SYNC (Pin 2): Burst Mode Select and Oscillator Synchronization. MODE/SYNC = ...
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W BLOCK DIAGRA ANTIRING SHDN ANTICROSS 10 SHUTDOWN CURRENT GND 5 SYNC OSC PGOOD 0.3 OUT SW 4 COND N + 10mV I SENSE AMP – + ...
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LTC3401 U U APPLICATIO S I FOR ATIO DETAILED DESCRIPTION The LTC3401 provides high efficiency, low noise power for applications such as portable instrumentation. The current mode architecture with adaptive slope compensa- tion provides ease of loop compensation with excellent ...
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U U APPLICATIO S I FOR ATIO Burst Mode operation is user controlled by driving the MODE/SYNC pin high to enable and low to disable recommended that Burst Mode operation be entered after the part has started up. ...
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LTC3401 U U APPLICATIO S I FOR ATIO In some layouts it may be required to place a 1μF low ESR capacitor as close to the V and GND pins as possible. OUT Input Capacitor Selection The input filter capacitor ...
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U U APPLICATIO S I FOR ATIO A logic level feed forward signal, V components C5 and R6. The amount of feed forward signal is attenuated with resistor R6 and is given by the following relationship: ⎛ ⎞ V • ...
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LTC3401 U U OUTPUT DISCO ECT CIRCUITS FIXED FREQUENCY 1 = Burst Mode OPERATION Dual Cell Output Disconnect Alllowing Full Load Start- 1. FIXED FREQUENCY 1 = ...
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U TYPICAL APPLICATIO S Single Cell 50mA, 1.2mm High, 3MHz Step-Up Converter L1 1μ 0.9V TO 1.5V IN LTC3401 SHDN V OUT + 2 1 MODE/SYNC FB CELL ...
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LTC3401 U TYPICAL APPLICATIO S Li-Ion 300mA, 1MHz Step-Up Converter L1 10μ 2.5V TO 4.2V IN LTC3401 SHDN V OUT 2 Li-Ion MODE/SYNC FB 6 PGOOD V C ...
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... LEAD COPLANARITY (BOTTOM OF LEADS AFTER FORMING) SHALL BE 0.102mm (.004") MAX 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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... Single Cell, High Current (2A) Micropower, Synchronous 3MHz Step-Up DC/DC Converter LTC3423 Single Cell, High Current (2A) Micropower, Synchronous 3MHz Step-Up DC/DC Converter for V ThinSOT is a trademark of Linear Technology Corporation. Linear Technology Corporation 16 1630 McCarthy Blvd., Milpitas, CA 95035-7417 (408) 432-1900 FAX: (408) 434-0507 ● ...