LTC3531EDD-3#TRPBF Linear Technology, LTC3531EDD-3#TRPBF Datasheet
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LTC3531EDD-3#TRPBF
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LTC3531EDD-3#TRPBF Summary of contents
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... DFN package for fi xed and adjustable versions. , LT, LTC and LTM are registered trademarks of Linear Technology Corporation. Burst Mode is a registered trademark of Linear Technology Corporation. ThinSOT is a trademark of Linear Technology Corporation. ...
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... U FOR ATIO 6 SW1 SHDN EXPOSED PAD IS GND (PIN 9), MUST BE SOLDERED TO PCB ORDER PART NUMBER LTBWM LTC3531EDD LTCBK LTC3531EDD-3.3 LTC3531EDD-3 The denotes the specifi cations which apply over the full operating ● = 25° 3. 3.3V unless otherwise noted OUT CONDITIONS No Load No Load ...
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ELECTRICAL CHARACTERISTICS temperature range, otherwise specifi cations are at T PARAMETER PMOS D R (3.3V Version or Adjustable Version set to 3.3V) DSON PMOS D R (3V Version) DSON Peak Current Limit SHDN SHDN Input Threshold SHDN Hysteresis SHDN Leakage ...
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LTC3531/ LTC3531-3.3/LTC3531 TYPICAL PERFOR A CE CHARACTERISTICS Start-Up into Resistive Load L = 10μ 1.5 2 2.5 3 3 (V) IN 3531 G07 ...
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W U TYPICAL PERFOR A CE CHARACTERISTICS Buck Mode 3.3V 200mA OUT SW1 5V/DIV SW2 5V/DIV V (AC) OUT 50mV/DIV I L 200mA/DIV L = 10μH 5μs/DIV C = 22μF OUT Buck Mode Waveforms at 5V 3.3V ...
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LTC3531/ LTC3531-3.3/LTC3531 TYPICAL PERFOR A CE CHARACTERISTICS Boost Mode Waveforms at 2.5V , 3.3V 100mA IN OUT SW1 5V/DIV SW2 5V/DIV V (AC) OUT 50mV/DIV I L 200mA/DIV L = 10μH 5μs/DIV C = 22μF OUT Shorted Output ...
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CTIO S ThinSOT/DFN Packages SW2 (Pin 1/Pin 7): Buck-Boost Switch Pin Where Internal Switches C and D are Connected. An optional Schottky diode can be connected from SW2 to V effi ciency improvement. Minimize trace ...
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LTC3531/ LTC3531-3.3/LTC3531-3 W BLOCK DIAGRA V IN PEAK CURRENT LIMIT 365mA V IN UVLO 1.65V SHDN SHUTDOWN 8 SW1 SW2 SW A GATE DRIVERS AND ANTICROSS CONDUCTION BEST BUCK, 4SW, MODE DETECT BOOST STATE MACHINE AND LOGIC ...
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U OPERATIO The LTC3531, LTC3531-3.3 and LTC3531-3 synchro- nous buck-boost converters utilize a Burst Mode control technique to achieve high effi ciency over a wide dynamic range of load currents accurate comparator is used to monitor the output ...
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LTC3531/ LTC3531-3.3/LTC3531-3 U OPERATIO Buck Mode ~800mV above V , the LTC3531 operates in IN OUT buck or step-down mode. The higher offset between V and V (800mV) is required to ensure suffi cient mag- OUT netizing ...
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U U APPLICATIO S I FOR ATIO Component Selection Only three power components are required to complete the design of the buck-boost converter, V programming resistors are needed for the adjustable version. The high operating frequency and low peak currents ...
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LTC3531/ LTC3531-3.3/LTC3531 APPLICATIO S I FOR ATIO SHUTDOWN C OUT GND V – – SHDN OUT 5 – V GND – – SW1 SW2 – ...
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U TYPICAL APPLICATIO 10μH SW1 SW2 LTC3531-3.3 + 2.2μF 5V/Li-Ion – SHDN GND ON OFF 10μH SW1 SW2 1. 3.2V LTC3531-3 – ...
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LTC3531/ LTC3531-3.3/LTC3531-3 PACKAGE DESCRIPTIO 0.62 0.95 MAX REF 3.85 MAX 2.62 REF RECOMMENDED SOLDER PAD LAYOUT PER IPC CALCULATOR 0.20 BSC DATUM ‘A’ 0.30 – 0.50 REF NOTE: 1. DIMENSIONS ARE IN MILLIMETERS 2. DRAWING NOT TO SCALE 3. DIMENSIONS ...
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... SHADED AREA IS ONLY A REFERENCE FOR PIN 1 LOCATION 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 representation that the interconnection of its circuits as described herein will not infringe on existing patent rights. ...
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... OUT V : 2.4V to 5.5V 5.25V 28μA, IN OUT(MIN < 1μA, MS Package 1. 7.5V IN OUT V : 1. OUT V : 1.5V to 5.5V 10V IN OUT V : 0.5V to 4.5V 7μA, I < 1μ 2mm × 2mm SC70 Package LT 0807 REV B • PRINTED IN USA © LINEAR TECHNOLOGY CORPORATION 2006 3531fb ...