LTM8031EVPBF LINER [Linear Technology], LTM8031EVPBF Datasheet
LTM8031EVPBF
Related parts for LTM8031EVPBF
LTM8031EVPBF Summary of contents
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FEATURES n Complete Step-Down Switch Mode Power Supply n Wide Input Voltage Range: 3.6V to 36V n 1A Output Current n 0.8V to 10V Output Voltage n Switching Frequency from 200kHz to 2.4MHz n EN55022 Class B Compliant n Current ...
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LTM8031 ABSOLUTE MAXIMUM RATINGS (Note FIN, RUN/SS Voltage ..........................................40V IN ADJ, RT, SHARE Voltage ............................................. AUX .................................................................10V OUT Current from AUX ................................................100mA PGOOD, SYNC ..........................................................30V BIAS ..........................................................................25V V + BIAS .................................................................56V IN Maximum Junction Temperature ...
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ELECTRICAL CHARACTERISTICS temperature range, otherwise specifi cations are at T SYMBOL PARAMETER V Input DC Voltage IN V Output DC Voltage OUT I Continuous Output DC Current OUT I V Quiescent Current Q(VIN BIAS Quiescent Current Q(BIAS) ΔV ...
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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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PIN FUNCTIONS SYNC (Pin L6): This is the external clock synchronization input. Ground this pin for low ripple Burst Mode at low output loads. Tie to a stable voltage source greater than 0.7V to disable Burst Mode operation. Do not ...
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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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LTM8031 APPLICATIONS INFORMATION may have only a small fraction of their nominal capaci- tance resulting in much higher output voltage ripple than expected. Ceramic capacitors are also piezoelectric. In Burst Mode operation, the LTM8031’s switching frequency depends on the load ...
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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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APPLICATIONS INFORMATION GND C OUT AUX OPTIONAL CAPACITOR V OUT GND Figure 3. Layout Showing Suggested External Components, GND Plane and Thermal Vias Hot-Plugging Safely The small size, robustness and low impedance of ceramic capacitors make them an attractive option ...
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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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PACKAGE DESCRIPTION Table 3. LTM8031 Pinout (Sorted by Pin Number) PIN SIGNAL DESCRIPTION ...
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LTM8031 PACKAGE PHOTOGRAPH RELATED PARTS PART NUMBER DESCRIPTION LTM4606 Ultralow Noise 6A DC/DC μModule Regulator LTM4612 Ultralow Noise High V OUT LTM8023 36V, 2A DC/DC μModule Regulator LTM8025 36V, 3A DC/DC μModule Regulator LTM8032 36V, 2A EMC DC/DC μModule Regulator ...