LTC3525D-3.3 LINER [Linear Technology], LTC3525D-3.3 Datasheet
LTC3525D-3.3
Related parts for LTC3525D-3.3
LTC3525D-3.3 Summary of contents
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... Patents Pending. L1 OUT 3.3V V OUT 140mA GND 10µF 3525 TA01 LTC3525D-3.3 400mA Micropower U 3525D-3 high effi ciency synchronous step- is connected to V OUT LTC3525D-3.3 Effi ciency and Power Loss vs Load Current 100 90 80 EFFICIENCY 70 60 POWER LOSS 2. ...
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... LTC3525D-3 ABSOLUTE AXI U RATI GS (Note Voltage ........................................ –0. OUT SW Voltage ................................................. –0. Voltage < 100ns ................................... –0. ⎯ S ⎯ H ⎯ D ⎯ N Voltage ............................................. –0. Operating Temperature Range (Notes 2, 5) .......................................... –40°C to 85°C Storage Temperature Range ................... –65°C to 125°C Lead Temperature (Soldering, 10 sec) .................. 300° ...
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... LOAD (mA) V Variation vs Temperature OUT (Normalized to 25°C) 0.4 0.3 0.2 0.1 0 –0.1 –0.2 –0.3 –0.4 10 –40–30–20– TEMPERATURE (°C) LTC3525D-3 25°C unless otherwise noted No-Load Input Current 1.0 1.5 2.0 2.5 3.0 2.5 3.0 V (V) IN ...
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... LTC3525D-3 TYPICAL PERFOR A CE CHARACTERISTICS Output Voltage Ripple I = OUT 5mA I = OUT 40mA I = OUT 80mA 50µs/DIV 10µF OUT Output Voltage Ripple I = OUT 5mA I = OUT 100mA I = OUT 190mA 50µs/DIV 22µF OUT OUT 5mA I = OUT 50mV/DIV ...
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... LOGIC I – VAL + I VALLEY COMPARATOR WAKE INTEGRATOR COMPARATOR ADJUST 5 2 GND GND LTC3525D-3.3 to GND, close to the IC. A minimum value of through the inductor when ⎯ S ⎯ H ⎯ D ⎯ <0.4V. after the inductor current has dropped WELL SWITCH 4 + – OFFSET ADJUST FB – ...
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... LTC3525D-3.3 U OPERATIO The LTC3525D is a high performance Burst Mode operation only, synchronous boost converter requiring only three small external components. Its simplicity and small size make it a high effi ciency alternative to charge pump designs designed to start-up from a single alkaline or nickel cell, with input voltages as low as 0 ...
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... This will lower the light load effi ciency. The valley of the inductor current is automatically adjusted as well, to maintain a relatively constant inductor ripple current. This keeps the switching frequency relatively constant. LTC3525D-3.3 3525 F01 3525d33f 7 ...
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... LTC3525D-3.3 U OPERATIO The maximum average load current that can be supported is given by: • η • Amps ( ) O MAX V O Where η is the effi ciency (see Typical Performance Characteristics). The “burst” frequency (how often the LTC3525D delivers a burst of current pulses to the load) is determined by the internal hysteresis (output voltage ripple), the load current and the amount of output capacitance ...
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... USA: (847) 956-0702 (408) 573-4159 FAX USA: (814) 238-0490 (408) 573-4159 (847) 803-6296 (803) 448-1943 SHDN SW LTC3525D-3.3 GND GND OUT Figure 2. Recommended Component Placement LTC3525D-3.3 WEBSITE www.murata.com www.coilcraft.com www.sumida.com www.t-yuden.com WEBSITE www.murata.com www.t-yuden.com www.component.tdk.com www.avxcorp.com V OUT 3525 F02 3525d33f 9 ...
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... Single Alkaline or NiMH to 3.3V Converter with 1mm Profi 1.6V 1.8V to 3.2V 10 6.8µH* LTC3525D-3 SHDN V OUT PASS THROUGH ON 2 GND GND 1µF *COILCRAFT LPO3310-682MXD **MURATA GRM219R60J106KE191D 2-Alkaline or NiMH to 3.3V 10µH* LTC3525D-3 SHDN V OUT PASS THROUGH GND GND 1µF *MURATA LQH32CN1002K53 6 V OUT 4 3.3V ...
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... U SC6 Package 6-Lead Plastic SC70 (Reference LTC DWG # 05-08-1638 Rev B) 1.00 REF 1.15 – 1.35 1.80 – 2.40 (NOTE 4) 0.65 BSC 0.80 – 1.00 1.00 MAX 0.10 – 0.18 (NOTE 3) LTC3525D-3.3 1.80 – 2.20 (NOTE 4) INDEX AREA (NOTE 6) PIN 1 0.15 – 0.30 6 PLCS (NOTE 3) 0.00 – 0.10 REF SC6 SC70 1205 REV B 3525d33f 11 ...
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... LTC3525D-3.3 RELATED PARTS PART NUMBER DESCRIPTION ® LT 1615/LT1615-1 300mA/80mA (I SW LT1930/LTC1930A 1.2MHz/2MHz, High Effi ciency Step-Up DC/DC Converter High Effi ciency LTC3400/LTC3400B 600mA (I ), 1.2MHz, Synchronous Step-Up DC/DC Converter SW LTC3401 3MHz, Synchronous Step-Up DC/DC Converter SW LTC3402 3MHz, Synchronous Step-Up DC/DC Converter SW LTC3421 ...