LTC1772BES6#TR Linear Technology, LTC1772BES6#TR Datasheet
LTC1772BES6#TR
Specifications of LTC1772BES6#TR
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LTC1772BES6#TR Summary of contents
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... The LTC1772B is available in a small footprint 6-lead TSOT-23. For a Burst Mode operation enabled version of the LTC1772B, please refer to the LTC1772 data sheet. L, LT, LTC, LTM and Burst Mode are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners ...
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... LTC1772BIS6#PBF LTC1772BIS6#TRPBF LEAD BASED FINISH TAPE AND REEL LTC1772BES6 LTC1772BES6#TR LTC1772BIS6 LTC1772BIS6#TR Consult LTC Marketing for parts specifi ed with wider operating temperature ranges. *The temperature grade is identifi label on the shipping container. For more information on lead free part marking, go to: For more information on tape and reel specifi ...
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ELECTRICAL CHARACTERISTICS temperature range, otherwise specifi cations are at T PARAMETER CONDITIONS V Input Current (Note 5) FB Overvoltage Protect Threshold Measured at V Overvoltage Protect Hysteresis Oscillator Frequency Gate Drive Rise ...
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LTC1772B TYPICAL PERFORMANCE CHARACTERISTICS Reference Voltage vs Temperature 825 V = 4.2V IN 820 815 810 805 800 795 790 785 780 775 85 105 –55 –35 – 125 TEMPERATURE (°C) 1772 G01 Maximum (V – ...
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PIN FUNCTIONS I /RUN (Pin 1): This pin performs two functions serves as the error amplifi er compensation point as well as the run control input. Nominal voltage range for this pin is 0.85V to 1.9V. Forcing this ...
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LTC1772B OPERATION (Refer to Functional Diagram) Main Control Loop The LTC1772B is a constant frequency current mode switching regulator. During normal operation, the external P-channel power MOSFET is turned on each cycle when the oscillator sets the RS latch (RS1) ...
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OPERATION (Refer to Functional Diagram) that the external P-channel MOSFET will remain on for more than one oscillator cycle since the inductor current has not ramped up to the threshold set by EAMP . Further reduction in input supply voltage ...
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LTC1772B APPLICATIONS INFORMATION The basic LTC1772B application circuit is shown in Figure 1. External component selection is driven by the load require- ment and begins with the selection of L1 and R Next, the power MOSFET, M1 and the output ...
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APPLICATIONS INFORMATION Since the LTC1772B is designed for operation down to low input voltages, a logic level threshold MOSFET (R guaranteed 2.5V) is required for applications that GS work close to this voltage. When these MOSFETs are ...
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LTC1772B APPLICATIONS INFORMATION size or height requirements in the design. Due to the high operating frequency of the LTC1772B, ceramic capacitors can also be used for C . Always consult the manufacturer IN if there is any question. The selection ...
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APPLICATIONS INFORMATION current, 2) MOSFET gate charge current and 4) voltage drop of the output diode. 1. The V current is the DC supply current, given in the IN electrical characteristics, that excludes MOSFET driver and control currents. ...
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LTC1772B APPLICATIONS INFORMATION PC Board Layout Checklist When laying out the printed circuit board, the following checklist should be used to ensure proper operation of the LTC1772B. These items are illustrated graphically in the layout diagram in Figure 7. Check ...
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TYPICAL APPLICATIONS LTC1772B High Effi ciency, Small Footprint 3.3V to 1.8V/0.5A Regulator R4 10k C3 220pF R1 0.15Ω /RUN PGATE M1 TH 10μH LTC1772B + 2 5 GND – V SENSE ...
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LTC1772B TYPICAL APPLICATIONS R4 10k C3 220pF C1: TAIYO YUDEN CERAMIC LMK325BJ106K-T C2: AVXTPSE107M010R0100 D1: IR10BQ015 14 LTC1772B 5V/0.5A Flyback Regulator R1 0.033Ω /RUN PGATE M1 TH LTC1772B 2 5 GND – V ...
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... MOLD FLASH SHALL NOT EXCEED 0.254mm 6. JEDEC PACKAGE REFERENCE IS MO-193 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 representa- tion that the interconnection of its circuits as described herein will not infringe on existing patent rights. S6 Package ...
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... LTC1772 Constant Frequency Current Mode Step-Down DC/DC Controller in SOT-23 LTC1773 95% Effi cient Synchronous Step-Down Controller LTC1872 SOT-23 Step-Up Controller trademark of Linear Technology Corporation. SENSE Linear Technology Corporation 16 1630 McCarthy Blvd., Milpitas, CA 95035-7417 (408) 432-1900 FAX: (408) 434-0507 ● LTC1772B 3.3V to 5V/1A Boost Regulator R1 0.033Ω ...