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LTC3250-1.2 Datasheet(PDF) 2 Page - Linear Technology |
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LTC3250-1.2 Datasheet(HTML) 2 Page - Linear Technology |
2 / 12 page LTC3250-1.5/LTC3250-1.2 2 3250fa SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS VIN LTC3250-1.5 Operating Voltage Range q 3.1 5.5 V LTC3250-1.2 Operating Voltage Range q 2.7 5.5 V VOUT LTC3250-1.5 Output Voltage Range IOUT ≤ 50mA 3.1V ≤ VIN ≤ 5.5V q 1.44 1.5 1.56 V IOUT ≤ 100mA 3.2V ≤ VIN ≤ 5.5V q 1.44 1.5 1.56 V IOUT ≤ 250mA 3.5V ≤ VIN ≤ 5V 1.44 1.5 1.56 V LTC3250-1.2 Output Voltage Range IOUT ≤ 150mA 2.7V < VIN < 5.5V q 1.15 1.2 1.25 V IOUT ≤ 250mA 2.9V ≤ VIN ≤ 5V 1.15 1.2 1.25 V IIN Operating Current IOUT = 0mA q 35 60 µA Shutdown Current SHDN = 0V q 0.01 1 µA VRB Burst Mode Operation Output Ripple 12 mVP-P VRC Continuous Mode Output Ripple 4 mVP-P fOSC Switching Frequency q 1.2 1.5 1.8 MHz VIH SHDN Input Hi Voltage q 1.2 0.8 V VIL SHDN Input Low Voltage q 0.8 0.4 V IIH SHDN Input Current SHDN = VIN q –1 1 µA IIL SHDN Input Current SHDN = 0V q –1 1 µA tON Turn On Time RLOAD = 6Ω 0.8 ms LTC3250-1.5 Load Regulation 0 ≤ IOUT ≤ 250mA 0.15 mV/mA LTC3250-1.2 Load Regulation 0 ≤ IOUT ≤ 250mA 0.12 mV/mA Line Regulation IOUT = 250mA 0.2 %/V ROL Open-Loop Output Impedance IOUT = 250mA (Note 4) 1.0 Ω VIN to GND ................................................... –0.3V to 6V SHDN to GND ............................... –0.3V to (VIN + 0.3V) IOUT (Note 2)....................................................... 350mA Operating Ambient Temperature Range (Note 3) ........................................................... – 40 °C to 85°C Storage Temperature Range ................ – 65 °C to 150°C Lead Temperature (Soldering, 10 sec).................. 300 °C ORDER PART NUMBER S6 PART MARKING TJMAX = 150°C, θJA = 230°C/W, θJC = 102°C/W LTZE LTAGJ LTC3250ES6-1.5 LTC3250ES6-1.2 ABSOLUTE AXI U RATI GS PACKAGE/ORDER I FOR ATIO (Note 1) ELECTRICAL CHARACTERISTICS The q denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VIN = 3.6V, CFLY = 1µF, CIN = 1µF, COUT = 4.7µF unless otherwise noted. Consult LTC Marketing for parts specified with wider operating temperature ranges. 6 C+ 5 VOUT 4 C– VIN 1 TOP VIEW S6 PACKAGE 6-LEAD PLASTIC SOT-23 GND 2 SHDN 3 Note 1: Absolute Maximum Ratings are those values beyond which the life of a device may be impaired. Note 2: Based on long term current density limitations. Note 3: The LTC3250-1.5E/LTC3250-1.2E are guaranteed to meet specified performance from 0 °C to 70°C. Specifications over the –40°C and 85 °C operating temperature range are assured by design characterization and correlation with statistical process controls. Note 4: Output not in regulation; ROL = (VIN/2 - VOUT)/IOUT. 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. Continuous operation above the specified maximum operating junction temperature may impair device reliability. |
Similar Part No. - LTC3250-1.2 |
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Similar Description - LTC3250-1.2 |
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