ltm8032 Linear Technology Corporation, ltm8032 Datasheet
ltm8032
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ltm8032 Summary of contents
Page 1
... Included in the package are the switching controller, power switches, inductor, fi lters and all support components. Operating over an input voltage range of 3.6V to 36V, the LTM8032 supports an output voltage range of 0.8V to 10V, and a switching frequency range of 200kHz to 2.4MHz, each set by a single resistor. ...
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... LTM8032IV#PBF LTM8032IV#PBF LTM8032MPV#PBF LTM8032MPV#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. For more information go to: ...
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... Maximum Rating condition for extended periods may affect device reliability and lifetime. Note 2: The LTM8032E is guaranteed to meet performance specifi cations from 0°C to 125°C internal. Specifi cations over the –40°C to 125°C internal temperature range are assured by design, characterization and correlation with statistical process controls ...
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... LTM8032 TYPICAL PERFORMANCE CHARACTERISTICS 3.3V Effi ciency OUT 100 5. 12V IN 24V IN 10 36V IN 0 0.01 1 0.1 OUTPUT CURRENT (A) 8031 G01 Input Current vs Output Current, 3.3V OUT 1600 5.5V IN 12V 1400 IN 24V IN 36V 1200 IN 1000 800 600 400 200 0 1000 0 500 1500 OUTPUT CURRENT (mA) ...
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... INPUT VOLTAGE (V) Temperature Rise vs Load Current OUT 2500 0 500 1000 1500 2000 LOAD CURRENT (mA) LTM8032 T = 25°C, unless otherwise noted. A Bias Current vs Output Current 30 3.3V OUT 5V OUT 25 8V OUT 500 1000 2000 OUTPUT CURRENT (mA) ...
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... Also, make sure that BIAS + V is less than 56V. rises or falls RUN/SS (Pin L5): Pull RUN/SS pin to less than 0. shut down the LTM8032. Tie to 2.5V or more for normal operation. If the shutdown feature is not used, tie this pin to the V IN see the Applications Information section. ...
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... RUN/SS is high. If this function is not used, leave this pin fl oating. BLOCK DIAGRAM FIN EMI FILTER V IN GND SHARE RUN/SS ADJ (Pin J7): The LTM8032 regulates its ADJ pin to 0.79V. ® operation Connect the adjust resistor from this pin to ground. The value ADJ where R ADJ Burst Mode is a registered trademark of Linear Technology Corporation ...
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... A simplifi ed Block Diagram is given on the previous page. The LTM8032 is designed with an input EMI fi lter and other features to make its radiated emissions compliant with several EMC specifi cations including EN55022 class B. ...
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... AUX 10μF 1206 47.5k AUX 10μF 1206 27.4k AUX 10μF 1206 21.5k AUX LTM8032 OPTIMAL T(OPTIMAL) MAX 250k 150k 250k 300k 124k 300k 350k 105k 350k 400k 88.7k 400k 450k 78 ...
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... LTM8032. A ceramic input capacitor combined with trace or cable inductance forms a high Q (under damped) tank circuit. If the LTM8032 circuit is plugged into a live supply, the input voltage can ring to twice its nominal value, possi- bly exceeding the device’s rating. This situation is easily avoided ...
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... V OUT 7.0 6.5 6.0 5.5 5.0 0 Figure 1. The LTM8032 Needs More Voltage to Start Than Run 5.5V to start. If the LTM8032 is enabled via the RUN/SS IN pin, the minimum voltage to start at light loads is lower, about 4.5V. A similar curve for 5V provided in Figure 1. Soft-Start The RUN/SS pin can be used to soft-start the LTM8032, reducing the maximum input current during start-up. The RUN/SS pin is driven through an external RC network to create a voltage ramp at this pin ...
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... Shorted Input Protection Care needs to be taken in systems where the output will be held high when the input to the LTM8032 is absent. This may occur in battery charging applications or in battery back-up systems where a battery or some other supply is diode ORed with the LTM8032’s output. If the V pin is allowed to fl ...
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... The small size, robustness and low impedance of ceramic capacitors make them an attractive option for the input bypass capacitor of LTM8032. However, these capacitors can cause problems if the LTM8032 is plugged into a live or fast rising or falling supply (see Linear Technology Application Note 88 for a complete discussion). The low ...
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... AI.EI. Figure 5. A Well Chosen Input Network Prevents Input Voltage Overshoot and Ensures Reliable Operation When the LTM8032 is Hot-Plugged to a Live Supply The die temperature of the LTM8032 must be lower than the maximum rating of 125°C, so care should be taken in the layout of the circuit to ensure good heat sinking of the LTM8032 ...
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... VOLTAGE RANGE. SEE APPLICATIONS FOR START-UP DETAILS 1.8V Step-Down Converter OUT IN 2.2μF FIN LTM8032 AUX RUN/SS BIAS SHARE PGOOD RT SYNC GND ADJ 78.7k 196k 8032 TA03 *RUNNING VOLTAGE RANGE. SEE APPLICATIONS FOR START-UP DETAILS LTM8032 V OUT 0.82V 2A 200μF V OUT 1.8V 2A 100μF 15 8032f ...
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... SYNC GND ADJ 54.9k 78.7k 8032 TA08 *RUNNING VOLTAGE RANGE. SEE APPLICATIONS FOR START-UP DETAILS 5V Step-Down Converter OUT IN FIN AUX RUN/SS 2.2μF LTM8032 BIAS SHARE PGOOD RT SYNC GND ADJ 44.2k 47.5k 8032 TA05 *RUNNING VOLTAGE RANGE. SEE APPLICATIONS FOR START-UP DETAILS V OUT 2.5V 2A 47μF V OUT 3 ...
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... V OUT IN FIN AUX RUN/SS 2.2μF LTM8032 BIAS SHARE PGOOD RT SYNC GND ADJ 39.2k 27.4k 8032 TA06 *RUNNING VOLTAGE RANGE. SEE APPLICATIONS FOR START-UP DETAILS Two LTM8032s Operating in Parallel OUT V IN FIN AUX RUN/SS LTM8032 BIAS 2.2μF SHARE PGOOD RT SYNC GND ADJ 54.9k V OUT ...
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... LTM8032 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 × 9mm × 2.82mm) (Reference LTC DWG # 05-08-1823 Rev Ø) 2.670 – ...
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... PACKAGE DESCRIPTION Table 2. LTM8032 Pinout (Sorted by Pin Number) PIN SIGNAL DESCRIPTION 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 ...
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... LTM8032 PACKAGE PHOTOGRAPH RELATED PARTS PART NUMBER DESCRIPTION LTM4606 Ultralow Noise 6A DC/DC μModule LTM4612 Ultralow Noise High V OUT LTM8023 36V, 2A DC/DC μModule Linear Technology Corporation 20 1630 McCarthy Blvd., Milpitas, CA 95035-7417 (408) 432-1900 FAX: (408) 434-0507 ● COMMENTS 4.5V ≤ V ≤ 28V, 0.6V ≤ DC/DC μModule 5A, 5V ≤ ...