LTM4607 LINER [Linear Technology], LTM4607 Datasheet
LTM4607
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LTM4607 Summary of contents
Page 1
... Included in the package are the switching controller, power FETs, and support components. Operating over an input voltage range of 4.5V to 36V, the LTM4607 supports an output voltage range of 0.8V to 24V, set by a resistor. This high effi ciency design delivers continuous current in boost mode (10A in buck mode). Only the inductor, sense resistor, bulk input and output capacitors are needed to fi ...
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... LTM4607EV#PBF LTM4607V LTM4607IV#PBF LTM4607V 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: ELECTRICAL CHARACTERISTICS temperature range, otherwise specifi ...
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... SW Bias Current Bias Current Bias Current Bias Current 1.2V PLLFLTR PLLFLTR V = 2.4V PLLFLTR f < f PLLIN OSC f > f PLLIN OSC LTM4607 MIN TYP MAX UNITS 0.002 0.02 % ● 0.15 0.5 % ● –0.15 –0 ...
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... The LTM4607I is guaranteed over the –40°C to 85°C temperature range. Note 3: The LTM4607 is tested in a feedback loop that servos V specifi ed voltage and measures the resultant V Note 4: Turn-on and turn-off time are measured using 10% and 90% levels ...
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... OUT 2A/DIV V OUT 200mV/DIV 200μs/DIV LOAD STEP CCM OUTPUT CAPS: 4x 22μF CERAMIC CAPS AND 2x 180μF ELECTROLYTIC CAPS 2x 15mΩ SENSING RESISTORS 3 LTM4607 (Refer to Figure 18) Effi ciency vs Load Current 32V to 12V IN OUT 100 ...
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... LTM4607 TYPICAL PERFORMANCE CHARACTERISTICS Transient Response from 32V to 12V IN OUT I OUT 2A/DIV V OUT 100mV/DIV 4607 G09 200μs/DIV LOAD STEP CCM OUTPUT CAPS: 4x 22μF CERAMIC CAPS AND 2x 180μF ELECTROLYTIC CAPS 2x 12mΩ SENSING RESISTORS Short Circuit with 6V ...
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... RUN (Pin A8): Run Control Pin. A voltage below 1.6V will turn off the module. There is a 100k resistor between the RUN pin and SGND in the module. Do not apply more than 6V to this pin. See Applications Information section. LTM4607 with a 100k preci- OUT and SGND pins. ...
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... OUT C External Output Capacitor Requirement OUT (V = 4.5V to 36V OUT 100k M3 M4 CONTROLLER INT COMP INT FILTER Figure 1. Simplifi ed LTM4607 Block Diagram T = 25°C. Use Figure 1 confi guration. A CONDITIONS OUT = 12V OUT = 12V 4.5V TO 36V ...
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... PLLIN pin. The typical switching frequency is 400kHz. The Burst Mode and skip-cycle mode operations can be enabled at light loads in the LTM4607 to improve its effi ciency, while the forced continuous mode and discon- tinuous mode operations are used for constant frequency applications ...
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... Figure 2. Frequency vs PLLFLTR Pin Voltage Low Current Operation To improve the effi ciency at low current operation, LTM4607 provides three modes for both buck and boost operations by accepting a logic input on the FCB pin. Table 2 shows the different operation modes. Table 2. Different Operating Modes ...
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... ESR BOOST , L MAX ( ) The LTM4607 is designed for low output voltage ripple. The bulk output capacitors defi ned as C with low enough ESR to meet the output voltage ripple and transient requirements. C can be the low ESR tantalum OUT capacitor, the low ESR polymer capacitor or the ceramic capacitor ...
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... Refer to Table 3. To further limit current in the event of an overload condi- tion, the LTM4607 provides foldback current limiting. If the output voltage falls by more than 70%, then the maximum output current is progressively lowered to about 30% of its full current limit value for boost mode and about 40% for buck mode ...
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... V supply pin. INTV CC IN the control chip and internal circuitry within the module. The LTM4607 also provides the external supply voltage pin EXTV . When the voltage applied to EXTV CC 5.7V, the internal regulator is turned off and an internal switch connects the EXTV ...
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... LTM4607 APPLICATIONS INFORMATION at buck mode, we can get the current ripple ratio of the current ripple ΔI to the maximum inductor current I L follows – • V Δ OUT OUT = I V • L • f • Figure 3. shows the current ripple ratio at different input voltages based on the inductor values: 2.5μ ...
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... Additionally, the current limit may become very high when the module runs at buck mode due to the low sensing resistor used in the wide input mode operation. Safety Considerations The LTM4607 modules do not provide isolation from There is no internal fuse. If required, a slow blow fuse OUT with a rating twice the maximum input current needs to be provided to protect each unit from catastrophic failure ...
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... LTM4607 APPLICATIONS INFORMATION Table 3. Typical Components (f = 400kHz) C VENDORS PART NUMBER OUT1 TDK C4532X7R1E226M (22μF , 25V) INDUCTOR VENDORS PART NUMBER Toko FDA1254 Sumida CDEP134, CDEP145, CDEP147 OUT SENSE (V) (V) (0.5W RATING × 18mΩ 0. × 18mΩ 0. × 18mΩ 0.5W ...
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... Loss includes all external components) 3 3.5 4 4607 F05 LTM4607 C C OUT1 OUT2 (CERAMIC) (BULK) 4 × 22μF 25V 2 × 150μF 50V 2 × 22μF 25V 2 × 150μF 50V 2 × ...
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... LTM4607 TYPICAL APPLICATIONS 4.0 3.5 3.0 2.5 2.0 1.5 1 12V WITH 0LFM IN OUT 0 12V WITH 200LFM IN OUT 5V TO 12V WITH 400LFM IN OUT AMBIENT TEMPERATURE (°C) Figure 12V without Heatsink IN OUT 3.0 2.5 2.0 1.5 1.0 0 AMBIENT TEMPERATURE (° 16V WITH 0LFM IN OUT ...
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... Figure 6 200 Figure 6 400 Figure 6 0 Figure 6 200 Figure 6 400 PART NUMBER LTN20069 375424B00034G are based on the demo board DC 1198A. Thus, the maximum temperature on board is treated LTM4607 105 AMBIENT TEMPERATURE (°C) 4607 F14 ...
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... LTM4607 APPLICATIONS INFORMATION Layout Checklist/Example The high integration of LTM4607 makes the PCB board layout very simple and easy. However, to optimize its electri- cal and thermal performance, some layout considerations are still necessary. • Use large PCB copper areas for high current path, includ- ...
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... PLLFLTR 3.3μH SW2 EXTV R CC SENSE + STBYMD SENSE C3 0.1μF SS – SENSE SGND V PGND 7.15k LTM4607 + 22μF 330μF 25V 25V 2200pF ×2 2Ω OPTIONAL FOR LOW SWITCHING NOISE R2 7mΩ 4607 TA03 + 22μF 330μF 2200pF 25V 25V ×4 2Ω ...
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... IN PGOOD 100k RUN LTM4607 COMP INTV CC 5.1V PLLFLTR EXTV CC STBYMD SS C3 0.1μF SGND PGND 10μF V PLLIN IN 50V PGOOD LTM4607 RUN COMP INTV CC PLLFLTR EXTV CC STBYMD SS SGND PGND Figure 20. Two-Phase Parallel, 12V at 10A Design CLOCK SYNC V OUT 5V + 10A 100μF L1 25V 2.5μH R2 8mΩ ...
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... 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 bbb 6.9850 5.7150 4.4450 3.1750 1.9050 0.6350 0.0000 0.6350 1.9050 3.1750 4.4450 5.7150 6.9850 LTM4607 4607f 23 ...
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... Pin Compatible with the LTM4600 Synchronizable, PolyPhase Operation, LTM4603-1 Version has no Remote Sensing, Pin Compatible with the LTM4601 2.75V ≤ V ≤ 5V; 0.8V ≤ Pin Compatible with LTM4607, 4.5V to 20V Input and 0.8V to 16V Output 2.75V ≤ V ≤ 5V; 0.6V ≤ www.linear.com ● PIN NAME ...