LTC3400-1 LINER [Linear Technology], LTC3400-1 Datasheet
LTC3400-1
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LTC3400-1 Summary of contents
Page 1
... IN used for backup power. The LTC3400-1 features low shutdown current of under 1µA. The LTC3400-1 is offered in the low profile (1mm) SOT-23 package. , LTC, LT and Burst Mode are registered trademarks of Linear Technology Corporation. ThinSOT is a trademark of Linear Technology Corporation. ...
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... Note 1: Absolute Maximum Ratings are those values beyond which the life of a device may be impaired. Note 2: The LTC3400-1 is guaranteed to meet performance specifications from 0°C to 70°C. Specifications over the – 30°C to 85°C operating temperature range are assured by design, characterization and correlation with statistical process controls ...
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... Fixed Frequency and Burst Mode Operation V OUT(AC) 100mV/DIV 60mA I OUT 10µ 1.3V 10ms/DIV 3400 G08 3.3V OUT I = 60mA TO 10µA OUT L = 6.8µ 4.7µF OUT LTC3400-1 Minimum Start-Up Voltage vs Load Current 1 25°C A 1.3 1.2 1.1 1.0 0.9 0.8 120 0 (mA) CURRENT SOURCE LOAD OUT SW Pin Antiringing Operation V SW 1V/DIV ...
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... LTC3400 CTIO S SW (Pin 1): Switch Pin. Connect inductor between SW and V . Optional Schottky diode is connected between IN SW and V . Keep these PCB trace lengths as short and OUT wide as possible to reduce EMI and voltage overshoot. If the inductor current falls to zero, or SHDN is low, an internal 100Ω ...
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... This is referred to as the sleep state. In sleep, the LTC3400-1 draws only 19µA from the output capacitor, greatly enhancing effi- ciency. When the output voltage has drooped approxi- mately 1% from nominal, the LTC3400-1 wakes up and commences normal PWM operation ...
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... Figure 1. Recommended Component Placement for Single Layer Board COMPONENT SELECTION Inductor Selection The LTC3400-1 can utilize small surface mount and chip inductors due to its fast 1.2MHz switching frequency. A minimum inductance value of 3.3µH is necessary for 3.6V and lower voltage applications and 4.7µH for output voltages greater than 3 ...
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... Molded chokes and some chip inductors usually do not have enough core to support the peak inductor currents of 850mA seen on the LTC3400-1. To minimize radiated noise, use a toroid, pot core or shielded bobbin inductor. See Table 1 for some suggested components and suppliers. ...
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... SINGLE AA CELL OFF ON D1: PHILLIPS PMEG2010EA L1: SUMIDA CDRH2D18/HP-4R7 8 Single Cell to 3.3V Synchronous Boost Converter with Load Disconnect in Shutdown L1 D1 4.7µ 4.7µF SW Si2305DS OUT R3 LTC3400-1 510k 4 3 SHDN FB C2 GND 4.7µ 510k M1 V OUT 3.3V R1 100mA 1.02M 1% R2 604k 1% ...
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... L1 D1 4.7µ 4.7µ OUT R1 C2 LTC3400-1 1.02M 4.7µ OFF ON SHDN FB R2 GND 332k 1% 2 34001 TA02a 3. Efficiency 100 LTC3400 4.7µ 4.7µ 0 100 1000 LOAD CURRENT (mA) 34001 TA02b LTC3400-1 C3 100pF 34001f 9 ...
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... Single Cell AA Cell to ±3V Synchronous Boost Converter + SINGLE AA CELL D1, D2: ZETEX FMND7000 DUAL DIODE L1: SUMIDA CDRH2D18/HP-4R7 1µF 4.7µ 4.7µ OUT R1 1.02M LTC3400 OFF ON SHDN FB R2 GND 715k OUT1 3V C2 90mA 4.7µ 10µF OUT2 – ...
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... U S6 Package 6-Lead Plastic TSOT-23 (Reference LTC DWG # 05-08-1636) 1.22 REF 1.50 – 1.75 2.80 BSC 1.4 MIN (NOTE 4) 0.95 BSC 0.80 – 0.90 1.00 MAX 0.09 – 0.20 (NOTE 3) LTC3400-1 2.90 BSC (NOTE 4) PIN ONE ID 0.30 – 0.45 6 PLCS (NOTE 3) 0.01 – 0.10 1.90 BSC S6 TSOT-23 0302 34001f 11 ...
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... Single AA Cell to 2.5V Synchronous Boost Converter L1 D1 3.3µH 1 SINGLE C1 AA CELL 4.7µ OUT R1 1.02M LTC3400 OFF ON SHDN FB R2 GND COMMENTS with Single Li-Ion Cell 1.5A Switch, 1.6V to 18V Input Range, Input or Output Current Limiting 1A Gate Drive, 1.1V to 20V Input, Separate V 50kHz, 2 ...