LTM8031EV#PBF Linear Technology, LTM8031EV#PBF Datasheet
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LTM8031EV#PBF
Specifications of LTM8031EV#PBF
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LTM8031EV#PBF Summary of contents
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... The LTM8031 is RoHS compliant. L, LT, LTC, LTM, μModule, Linear Technology and the Linear logo are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. V ...
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... Solder Temperature (Note 3) ................................. 245°C ORDER INFORMATION LEAD FREE FINISH TRAY LTM8031EV#PBF LTM8031EV#PBF LTM8031IV#PBF LTM8031IV#PBF 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: This product is only offered in trays ...
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... Note that the maximum internal temperature is determined by specifi c operating conditions in conjunction with board layout, the rated package thermal resistance and other environmental factors. Note 3: See Linear Technology Application Note 100. LTM8031 = 3V, unless otherwise specifi ed. MIN TYP ...
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LTM8031 TYPICAL PERFORMANCE CHARACTERISTICS 3.3V Effi ciency OUT 100 12V IN 50 24V IN 36V 200 400 600 800 OUTPUT CURRENT (mA) 8031 G01 Input Current vs Output Current, 3.3V OUT ...
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TYPICAL PERFORMANCE CHARACTERISTICS Minimum V vs Output Current OUT 12 11 RUN/ RUNNING OR RUN/SS TOGGLED 200 400 800 600 OUTPUT CURRENT (mA) 8031 G10 Output ...
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LTM8031 TYPICAL PERFORMANCE CHARACTERISTICS Radiated Emissions 36V 10V AT 1A OUT –10 0 100 200 300 400 500 FREQUENCY (MHz) PIN FUNCTIONS V (Bank 3): ...
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... ADJ (Pin J7): The LTM8031 regulates its ADJ pin to 0.79V. Connect the adjust resistor from this pin to ground. The value given by the equation: ADJ 196 ADJ V OUT where kΩ. ADJ Burst Mode is a registered trademark of Linear Technology Corporation. CURRENT MODE CONTROLLER SYNC RT PGOOD LTM8031 is above 3.6V and IN . – 4.7μH ...
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LTM8031 OPERATION The LTM8031 is a standalone nonisolated step-down switching DC/DC power supply. It can deliver output current with only bulk external input and output capacitors. This module provides a precisely regulated output voltage programmable ...
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APPLICATIONS INFORMATION Table 1. Recommended Component Values and Confi guration (See Typical Performance Characteristics for Load Conditions OUT IN 3.6V to 36V 0.82V 1μF 0805 50V 3.6V to 36V 1.20V 1μF 0805 50V 3.6V to 36V ...
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... EMC performance are given in the Typical Performance Characteristics section. Further data, operating conditions and test setup are detailed in an EMI Test report available from Linear Technology. Frequency Selection The LTM8031 uses a constant frequency PWM architecture that can be programmed to switch from 200kHz to 2.4MHz by using a resistor tied from the RT pin to ground ...
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APPLICATIONS INFORMATION than 56V. If BIAS power is applied from a remote or noisy voltage source, it may be necessary to apply a decoupling capacitor locally to the LTM8031. Load Sharing Two or more LTM8031s may be paralleled to produce ...
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LTM8031 APPLICATIONS INFORMATION Shorted Input Protection Care needs to be taken in systems where the output will be held high when the input to the LTM8031 is absent. This may occur in battery charging applications or in battery back-up systems ...
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... LTM8031. However, these capacitors can cause problems if the LTM8031 is plugged into a live or fast rising or falling supply (see Linear Technology Application Note 88 for a complete discussion). The low loss ceramic capacitor combined with stray inductance in ...
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LTM8031 APPLICATIONS INFORMATION CLOSING SWITCH SIMULATES HOT PLUG + LOW IMPEDANCE ENERGIZED 24V SUPPLY + 0.1μF + 22μF 35V AI.EI. Figure 4. A Well Chosen Input Network Prevents Input Voltage Overshoot and Ensures Reliable Operation When the LTM8031 is Hot-Plugged ...
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TYPICAL APPLICATIONS 3.6V TO 15V 9V TO 24V 0.82V Step-Down Converter OUT IN 1μF FIN LTM8031 AUX RUN/SS BIAS SHARE PGOOD RT SYNC GND ADJ 69.8k 5.11M 8031 TA02 *RUNNING VOLTAGE RANGE. SEE APPLICATIONS FOR START-UP ...
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LTM8031 TYPICAL APPLICATIONS 3.6V TO 36V 4.75V TO 36V 6.8V TO 36V 16 2.5V Step-Down Converter OUT IN 1μF FIN LTM8031 AUX RUN/SS 3.3V BIAS SHARE PGOOD RT SYNC GND ADJ 61.9k 115k 8031 TA04 *RUNNING ...
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TYPICAL APPLICATIONS 10.5V TO 36V Two LTM8031s Operating in Parallel (Also See the LTM8032, 2A Pin Compatible) 11.5V TO 36V OPTIONAL SYNC TIE TO GND IF NOT USED 8V Step-Down Converter OUT IN FIN LTM8031 AUX ...
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LTM8031 PACKAGE DESCRIPTION aaa Z PAD 1 CORNER 4 15.00 BSC X 9.00 Y BSC PACKAGE TOP VIEW 6.350 5.080 3.810 2.540 1.270 0.000 1.270 2.540 3.810 5.080 6.350 SUGGESTED PCB LAYOUT TOP VIEW 18 LGA Package 71-Lead (15mm × ...
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... 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. PIN V F1 OUT V F2 OUT V F3 ...
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... LGA OUT ≤ 15V, 15mm × 15mm × 2.8mm LGA OUT ≤ 10V, 9mm × 11.75mm × 2.8mm LGA OUT ≤ 24V, 9mm × 15mm × 4.32mm LGA OUT 8031fa LT 1009 • PRINTED IN USA © LINEAR TECHNOLOGY CORPORATION 2009 ...