LTC3410-1.875 LINER [Linear Technology], LTC3410-1.875 Datasheet
LTC3410-1.875
Related parts for LTC3410-1.875
LTC3410-1.875 Summary of contents
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... PCB footprint. The internal synchronous switch increases efficiency and eliminates the need for an external Schottky diode. The LTC3410-1.875 is available in a tiny, low profile SC70 package. , LT, LTC and LTM are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. Protected by U.S. Patents, including 5481178, 5994885, 6127815, 6304066, 6498466, 6580258, 6611131. 4.7µ ...
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... SW IN dissipation P according to the following formula: D LTC3410-1.875: T Note 4: Dynamic supply current is higher due to the gate charge being delivered at the switching frequency. Note 5: This IC includes overtemperature protection that is intended to protect the device during momentary overload conditions. Junction temperature will exceed 125°C when overtemperature protection is active. ...
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... G03 1.900 1.895 1.890 1.885 1.880 1.875 1.870 1.865 1.860 1.855 1.850 6 5 34101875 G05 LTC3410-1.875 Efficiency vs Output Current 100 1000 OUTPUT CURRENT (mA) 34101875 G02 Oscillator Frequency vs Temperature V = 3.6V IN –50 – 125 ...
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... LTC3410-1.875 W U TYPICAL PERFOR A CE CHARACTERISTICS (From Figure Input Voltage DS(ON 1.2 1.1 1.0 0.9 MAIN SWITCH 0.8 0.7 0.6 0.5 SYNCHRONOUS SWITCH 0.4 0.3 0.2 0 INPUT VOLTAGE (V) Dynamic Supply Current LOAD = (V) IN Switch Leakage vs Temperature 110 V = 5.5V IN 100 RUN = SYNCHRONOUS ...
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... I LOAD 200mA/DIV 34101875 G15 Load Step V OUT LOAD 10µs/DIV 34101875 G17 15mA TO 300mA LOAD LTC3410-1.875 Start-Up from Shutdown 200µs/DIV V = 3.6V 34101875 G14 300mA LOAD Load Step 10µs/DIV 34101875 G16 0mA TO 300mA LOAD 34101875f ...
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... LTC3410-1.875 CTIO S RUN (Pin 1): Run Control Input. Forcing this pin above 1.5V enables the part. Forcing this pin below 0.3V shuts down the device. In shutdown, all functions are disabled drawing <1µA supply current. Do not leave RUN floating. GND (Pins 2, 5): Ground Pin. ...
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... Normally, this results in a reduction of maximum inductor peak current for duty cycles > 40%. However, the LTC3410-1.875 uses a patented scheme that counteracts this compensating ramp, which allows the maximum inductor peak current to remain unaffected throughout all duty cycles ...
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... CER ments and any radiated field/EMI requirements than on what the LTC3410-1.875 requires to operate. Table 1 shows some typical surface mount inductors that work 34101875 F01 well in LTC3410-1.875 applications. Table 1. Representative Surface Mount Inductors ...
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... The teristics of all the ceramics for a given value and size. The recommended capacitance value to use is 4.7µF for both the input and output capacitors. = output capacitance LTC3410-1.875 . At best, this ringing can IN , large enough IN 34101875f ...
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... Efficiency = 100% – ( ...) where L1, L2, etc. are the individual losses as a percentage of input power. Although all dissipative elements in the circuit produce losses, two main sources usually account for most of the losses in LTC3410-1.875 circuits and I R losses. The V quiescent current loss dominates ...
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... Thermal Considerations In most applications the LTC3410-1.875 does not dissi- pate much heat due to its high efficiency. But, in applica- tions where the LTC3410-1.875 is running at high ambient temperature with low supply voltage, the heat dissipated may exceed the maximum junction temperature of the part. If the junction temperature reaches approximately 150° ...
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... MOSFETs. 3. Keep the (–) plates of C and C IN OUT Design Example As a design example, assume the LTC3410-1.875 is used in a single lithium-ion battery-powered cellular phone application. The V will be operating from a maximum of IN 4.2V down to about 2.7V. The load current requirement is a maximum of 0.3A but most of the time it will be in standby mode, requiring only 2mA ...
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... EFFICIENCY 2.7V IN EFFICIENCY 3. EFFICIENCY 4. 0 100 LOAD (mA) 34101875 F05b Figure 5b V OUT 100mV/DIV AC COUPLED I L 200mA/DIV I LOAD 200mA/DIV 20µs/DIV 100mA TO 300mA LOAD Figure 5c LTC3410-1.875 V OUT 1.875V † C OUT 4.7µF CER 34101875 F05a 1000 34101875 F05C 34101875f 13 ...
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... LTC3410-1.875 U TYPICAL APPLICATIO TO 4.2V † TAIYO YUDEN JMK212BJ475 *FDK MIPF2520D 14 Using Low Profile Components, <1mm Height 4.7µ 2. † C LTC3410-1.875 IN 4.7µF 1 RUN 6 V OUT GND 2, 5 Low Profile Efficiency 100 100 LOAD (mA) ...
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... U SC6 Package 6-Lead Plastic SC70 (Reference LTC DWG # 05-08-1638) 1.00 REF 1.15 – 1.35 1.80 – 2.40 (NOTE 4) PIN 1 0.65 BSC 0.80 – 1.00 1.00 MAX 0.10 – 0.18 (NOTE 3) LTC3410-1.875 1.80 – 2.20 (NOTE 4) INDEX AREA (NOTE 6) 0.15 – 0.30 6 PLCS (NOTE 3) 0.00 – 0.10 REF SC6 SC70 1205 REV B 34101875f 15 ...
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... LTC3410-1.875 RELATED PARTS PART NUMBER DESCRIPTION LT1616 500mA (I ), 1.4MHz, High Efficiency Step-Down OUT DC/DC Converter LT1676 450mA (I ), 100kHz, High Efficiency Step-Down OUT DC/DC Converter LTC1701/LTC1701B 750mA (I ), 1MHz, High Efficiency Step-Down OUT DC/DC Converter LT1776 500mA (I ), 200kHz, High Efficiency Step-Down OUT DC/DC Converter LTC1877 600mA (I ...