ltm4600hv Linear Technology Corporation, ltm4600hv Datasheet
ltm4600hv
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ltm4600hv Summary of contents
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... Included in the package are the switching controller, power FETs, inductor, and all support components. Operating over an input voltage range of 4.5V to 28V, the LTM4600HV supports an output voltage range of 0.6V to 5V, set by a single resistor. This high effi ciency design delivers 10A continuous current (12A peak), needing no heat sinks or airfl ...
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... LTM4600HVEV#TRPBF LTM4600HVIV#PBF LTM4600HVIV#TRPBF LTM4600HVMPV#PBF LTM4600HVMPV#TRPBF Consult LTC Marketing for parts specifi ed with wider operating temperature ranges. Consult LTC Marketing for information on non-standard lead based fi nish parts. For more information on lead free part marking, go to: For more information on tape and reel specifi cations, go to: ELECTRICAL CHARACTERISTICS temperature range, otherwise specifi ...
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... Exposure to any Absolute Maximum Rating condition for extended periods may affect device reliability and lifetime. Note 2: The LTM4600HVE is guaranteed to meet performance specifi cations from 0°C to 85°C. Specifi cations over the –40°C to 85°C The denotes the specifi ...
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... LTM4600HV W U TYPICAL PERFOR A CE CHARACTERISTICS Effi ciency vs Load Current with 5V (FCB = 0) IN 100 0.6V OUT 1.2V OUT 40 1.5V OUT 2.5V OUT LOAD CURRENT (A) 4600hv G01 Effi ciency vs Load Current with Different FCB Settings 90 FCB > 0. FCB = GND 50 40 ...
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... OUT C = 2× 200μF/X5R OUT NO EXTERNAL SOFT-START CAPACITOR Start-Up Waveform OUT I OUT 125 4600HV G15 LTM4600HV (See Figure 21 for all curves) = 10A OUT V OUT (0.5V/DIV (0.5A/DIV) 4600hv G11 200μs/DIV = 12V = 1.5V = 200μ ...
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... A15): A 110k resistor from V ADJ the one-shot timer current, thereby setting the switching frequency. The LTM4600HV switching frequency is typically 850kHz. An external resistor to ground can be selected to reduce the one-shot timer current, thus lower the switching frequency to accommodate a higher duty cycle step down requirement ...
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... External Output Capacitor Requirement OUT (V = 4.5V to 28V OUT 1000pF Q1 INT CONTROLLER Q2 Figure 1. Simplifi ed LTM4600HV Block Diagram 25° 12V. Use Figure 1 confi guration CONDITIONS I = 10A, 2x 10μF 35V Ceramic OUT = 2.5V) Taiyo Yuden GDK316BJ106ML I = 10A, Refer to Table 2 in the OUT = 2 ...
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... Current mode control provides cycle-by-cycle fast current limit. In addition, foldback current limiting is provided in an over-current condition while V the LTM4600HV has defeatable short circuit latch off. Internal overvoltage and undervoltage comparators pull the open-drain PGOOD output low if the output feedback voltage exits a ±10% window around the regulation point. ...
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... SET SET OSET R SET Input Capacitors The LTM4600HV μModule should be connected to a low resistor ac-impedance DC source. High frequency, low ESR input SET capacitors are required to be placed adjacent to the mod- ule. In Figure 21, the bulk input capacitor C for its ability to handle the large RMS current into the 31 ...
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... W U Soft-Start and Latchoff with the RUN/SS pin The RUN/SS pin provides a means to shut down the LTM4600HV as well as a timer for soft-start and over- current latchoff. Pulling the RUN/SS pin below 0.8V puts the LTM4600HV into a low quiescent current shutdown (I ≤ 75μA). Releasing the pin allows an internal 1.2μA ...
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... NONE 100pF 12 NONE NONE 100pF 12 470μF 6.3V NONE 100pF 24 NONE NONE 100pF 15 NONE NONE 100pF 20 LTM4600HV PART NUMBER 6TPE330MIL (330μF, 6.3V) 2R5TPE470M9 (470μF, 2.5V) 4TPE470MCL (470μF, 4V) 6TPD470M (470μF, 6.3V) DROOP PEAK TO PEAK RECOVERY TIME (mV) (mV) (μ ...
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... Resistor during startup and RUN V RUN/ SHORT-CIRCUIT LATCH ARMED SOFT-START SHORT-CIRCUIT OUTPUT CLAMPING LATCHOFF OVERLOAD RELEASED L HAPPENS V O 75%V V RECOMMENDED VALUES FOR RUN/ LTM4600HV IN RUN/SS 4.5V TO 5.5V 50k RUN/SS 10.8V TO 13.8V 150k PGND SGND 24V TO 28V 500k 4600hv F04 IN 3. 4600hv F03 4600hvfc ...
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... U U APPLICATIO S I FOR ATIO Enable The RUN/SS pin can be driven from logic as shown in Figure 5. This function allows the LTM4600HV to be turned on or off remotely. The ON signal can also control the sequence of the output voltage. RUN/SS LTM4600HV ON PGND 2N7002 Figure 5. Enable Circuit with External Logic ...
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... Layout Checklist/Example The high integration of the LTM4600HV makes the PCB board layout very simple and easy. However, to optimize its electrical and thermal performance, some layout con- V ...
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... AMBIENT TEMPERATURE (°C) Figure 12. BGA Heatsink 5.0 4.5 4.0 3.5 24V LOSS 3.0 2.5 2.0 12V LOSS 1.5 1.0 0 OUTPUT CURRENT (A) Figure 15. 3.3V Power Loss Curves vs Load Current LTM4600HV 1. 1.5V OUT LFM 200 LFM 400 LFM AMBIENT TEMPERATURE (°C) 4600hv F09 Figure 10 ...
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... LTM4600HV U U APPLICATIO S I FOR ATIO 12V 3.3V OUT LFM 200 LFM 400 LFM 100 AMBIENT TEMPERATURE (°C) 4600hv F17 Figure 17. BGA Heatsink Table 3. 1.5V Output DERATING CURVE V (V) IN Figures 9, 11 12, 18 Figures 9, 11, 13 ...
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... V OUT LOAD TOP LAYER Figure 20. Recommended PCB Layout LTM4600HV Frequency Adjustment The LTM4600HV is designed to typically operate at 850kHz across most input and output conditions. The control ar- chitecture is constant on time valley mode current control. The f pin is typically left open or decoupled with an ADJ optional 1000pF capacitor. The switching frequency has been optimized to maintain constant output ripple over the operating conditions ...
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... ON switching period 1/frequency S 4. 10μF 25V RUN/SOFT-START WITH f LTM4600HV MINIMUM ON-TIME = 100ns LTM4600HV MINIMUM OFF-TIME = 400ns must be greater than 400ns OFF • ~450kHz frequency or 2.22μs period is chosen for 5V to 3.3V. Frequency range is about 450kHz to 650kHz from 4 ...
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... IN ADJ 25V 25V EXTV V CC FCB V LTM4600HV RUN/SOFT-START RUN/SS SV COMP PGOOD SGND PGND 12V WITH f = 15k ADJ LTM4600HV MINIMUM ON-TIME = 100ns LTM4600HV MINIMUM OFF-TIME = 400ns U TYPICAL APPLICATIO (BULK 24V 150μF GND C3 100pF V OUT R1 66.5k REFER TO TABLE 1 Figure 21 ...
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... V CC OUT FCB V OSET LTM4600HV RUN SV IN COMP PGOOD SGND PGND C1, C3, C7, C8: TAIYO YUDEN, GDK316BJ106ML 4600hv TA02 C2, C9: TAIYO YUDEN, JMK316BJ226ML-T501 C5, C10: SANYO POSCAP, 4TPE470MCL Current Sharing Between Two LTM4600HV Modules 12 12V IN 2.5V OUT 20A 10 MAX I OUT2 8 I OUT1 ...
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... PACKAGE DESCRIPTIO 6.9865 5.7142 4.4442 3.1742 1.9042 0.6342 0.0000 0.6358 1.9058 3.1758 4.4458 5.7158 6.9421 bbb 6.3500 5.0800 3.8100 2.5400 1.2700 0.3175 0.0000 0.3175 1.2700 2.5400 3.8100 5.0800 6.3500 LTM4600HV 4600hvfc 21 ...
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... LTM4600HV PACKAGE DESCRIPTIO PIN NAME PIN NAME A10 - B10 - A11 V B11 - IN A12 - B12 - A13 V B13 - IN A14 - B14 - A15 f B15 - ADJ A16 - B16 - A17 SV B17 - IN A18 - B18 - A19 EXTV ...
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... T4 V OUT T6 V OUT T8 V OUT T10 V OUT T12 V OUT T14 V OUT T16 V OUT T18 V OUT T20 V OUT T22 V OUT LTM4600HV PIN NAME V A15 f IN ADJ V IN A17 A19 EXTV A21 V OSET V IN B23 COMP V IN D23 ...
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... FAX: (408) 434-0507 ● 1.8V, 10A Regulator C5 100pF ADJ 1.8V AT 10A EXTV V CC OUT FCB V OSET R1 LTM4600HV 100k RUN SV IN COMP PGOOD R2 SGND PGND C1, C2: TAIYO YUDEN, GDK316BJ106ML 49.9k C3: TAIYO YUDEN, JMK316BJ226ML-T501 4600hv TA04 1% C4: SANYO POSCAP, 4TPE470MCL COMMENTS Monitors Four Supplies; Adjustable Reset Timer Tracks Both Up and Down ...