LTC3610EWP LINER [Linear Technology], LTC3610EWP Datasheet
LTC3610EWP
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LTC3610EWP Summary of contents
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FEATURES 12A Output Current ■ Wide V Range = 4V to 24V ■ IN ■ Internal N-Channel MOSFETs True Current Mode Control ■ Optimized for High Step-Down Ratios ■ ■ t ≤100ns ON(MIN) Extremely Fast Transient Response ■ Stable with ...
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... LTC3610EWP#PBF LTC3610EWP#TRPBF LEAD BASED FINISH TAPE AND REEL LTC3610EWP LTC3610EWP#TR Consult LTC Marketing for parts specifi ed with wider operating temperature ranges. For more information on lead free part marking, go to: For more information on tape and reel specifi cations, go to: 2 PIN CONFIGURATION ...
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ELECTRICAL CHARACTERISTICS temperature range, otherwise specifi cations are at T SYMBOL PARAMETER Main Control Loop V Operating Input Voltage Range IN I Input DC Supply Current Q Normal Shutdown Supply Current V Feedback Reference Voltage FB ΔV Feedback Voltage Line ...
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LTC3610 ELECTRICAL CHARACTERISTICS temperature range, otherwise specifi cations are at T SYMBOL PARAMETER Internal V Regulator CC V Internal V Voltage INTVCC CC ΔV Internal V Load Regulation LDO(LOADREG EXTV Switchover Voltage EXTVCC CC ΔV EXTV Switch Drop ...
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TYPICAL PERFORMANCE CHARACTERISTICS Transient Response V OUT 100mV/DIV I L 5A/DIV I LOAD 5A/DIV 3610 G01 40μs/DIV LOAD STEP 12V 2.5V OUT FCB = 0V FIGURE 6 CIRCUIT Effi ciency vs Load ...
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LTC3610 TYPICAL PERFORMANCE CHARACTERISTICS Load Current vs I Voltage and V TH RNG RNG 1V 20 0. –5 –10 0 0.5 1.0 1.5 2.0 2.5 I VOLTAGE (V) TH 3610 G10 On-Time ...
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TYPICAL PERFORMANCE CHARACTERISTICS Feedback Reference Voltage vs Temperature 0.62 0.61 0.60 0.59 0.58 –50 – 100 125 TEMPERATURE (°C) 3610 G19 INTV Load Regulation CC 0.30 0.20 0.10 0 –0.10 –0.20 –0.30 –0. ...
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LTC3610 PIN FUNCTIONS PGND (Pins 56, 57, 58, 59, 60, 61, 62, 63, 64, 65): Power Ground. Connect this pin closely to the (–) terminal of C and the (–) terminal of C VCC SW (Pins 4, ...
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FUNCTIONAL DIAGRAM 0.7V 2.4V V VON t = (10pF ION S 20k + + I CMP – – 1.4V V RNG 37 × 0.7V 1 ...
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LTC3610 OPERATION Main Control Loop The LTC3610 is a high effi ciency monolithic synchronous, step-down DC/DC converter utilizing a constant on-time, current mode architecture. It operates from an input voltage range 24V and provides a regulated output ...
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APPLICATIONS INFORMATION The basic LTC3610 application circuit is shown on the front page of this data sheet. External component selection is primarily determined by the maximum load current. The LTC3610 uses the on-resistance of the synchronous power MOSFET for determining ...
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LTC3610 APPLICATIONS INFORMATION 1000 V = 3.3V OUT V = 1.5V V OUT OUT 100 100 1000 R (kΩ) ON Figure 1a. Switching Frequency vs R 1000 V = 12V OUT V OUT V = 3.3V OUT 100 100 1000 ...
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APPLICATIONS INFORMATION R VON1 30k V OUT C VON R VON2 0.01μF 100k (2a) R VON1 3k V OUT C R VON VON2 0.01μF 10k 10k INTV 2N5087 C C (2b) Figure 2. ...
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LTC3610 APPLICATIONS INFORMATION Since ΔI increases with input voltage, the output ripple L is highest at maximum input voltage. Typically, once the ESR requirement is satisfi ed, the capacitance is adequate for fi ltering and has the necessary RMS current ...
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APPLICATIONS INFORMATION GND IN4148 V OUT2 + C SEC 1μF V OUT1 T1 + 1:N C OUT Figure 4. Secondary Output Loop and EXTV INTV Regulator and EXTV Connection internal P-channel low ...
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LTC3610 APPLICATIONS INFORMATION When the voltage on RUN/SS reaches 1.5V, the LTC3610 begins operating with a clamp on I 0.9V. As the RUN/SS voltage rises to 3V, the clamp raised until its full 2.4V range is available. ...
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APPLICATIONS INFORMATION 4. C loss. The input capacitor has the diffi cult job of fi ltering IN the large RMS input current to the regulator. It must have a very low ESR to minimize the AC I capacitance to prevent ...
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LTC3610 APPLICATIONS INFORMATION GND PGND 2 PGND 3 PGND V OUT 4 2. 12A + OUT1 0.8μH 6 22μF 220μF SW 6.3V ...
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APPLICATIONS INFORMATION OUT OUT VCC ...
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LTC3610 TYPICAL APPLICATIONS GND PGND 2 PGND 3 PGND V OUT 4 1. 12A OUT1 0.36μH 22μF 220μ 6.3V ...
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TYPICAL APPLICATIONS GND PGND 2 PGND 3 PGND V OUT 4 1. 12A OUT1 0.52μH 22μF 220μ 6.3V 2× ...
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LTC3610 TYPICAL APPLICATIONS GND PGND 2 PGND 3 PGND V OUT 4 1. 12A OUT 0.47μH 22μF 100μ 6.3V 2× ...
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PACKAGE 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 ...
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LTC3610 TYPICAL APPLICATION GND PGND 2 PGND 3 PGND V OUT 4 12V OUT 5.7μH 6 22μF 180μF SW 25V ...