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150318 Datasheet(PDF) 2 Page - Linear Technology |
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150318 Datasheet(HTML) 2 Page - Linear Technology |
2 / 12 page 2 LTC1503-1.8/LTC1503-2 Industrial Temperature Range ............... – 40 °C to 85°C Specified Temperature Range (Note 2) ... – 40 °C to 85°C Storage Temperature Range ................ – 65 °C to 150°C Lead Temperature (Soldering, 10 sec)................. 300 °C (Note 1) PARAMETER CONDITIONS MIN TYP MAX UNITS VIN Operating Voltage q 2.4 6 V VOUT LTC1503-1.8, 0mA < IOUT < 100mA q 1.728 1.8 1.872 V LTC1503-2, 0mA < IOUT < 100mA q 1.920 2.0 2.080 V VIN Operating Current IOUT = 0mA q 25 50 µA VIN Shutdown Current SHDN/SS = 0V q 510 µA Output Ripple Voltage LTC1503-X, VIN = 3.6V, IOUT = 100mA 25 mVP-P Efficiency LTC1503-2, VIN = 3.6V, IOUT = 100mA 82.9 % Switching Frequency Oscillator Free Running 600 kHz SHDN/SS Input Threshold q 0.2 0.35 0.5 V SHDN/SS Input Current VSHDN/SS = 0V (Note 3) q –3.5 –2 –1 µA VSHDN/SS = VIN q –1 1 µA VOUT Short-Circuit Current VOUT = 0V (Note 4) q 822 50 mA VOUT Turn-On Time CSS = 0nF, VIN = 3.6V, COUT = 10µF 0.1 ms CSS = 10nF 8 ms Note 1: Absolute Maximum Ratings are those values beyond which the life of a device may be impaired. Note 2: The LTC1503C is guaranteed to meet specified performance from 0 °C to 70°C and is designed, characterized and expected to meet these extended temperature limits, but are not tested at – 40 °C and 85°C. The LTC1503I is guaranteed to meet the extended temperature limits. Note 3: Currents flowing into the device are positive polarity. Currents flowing out of the device are negative polarity. Note 4: When VOUT is less than 150mV, IOUT is limited to much less than the maximum rated output current to prevent damage to the output devices. ORDER PART NUMBER LTC1503CMS8-1.8 LTC1503CMS8-2 MS8 PART MARKING LTFX LTHN ORDER PART NUMBER LTC1503CS8-1.8 LTC1503CS8-2 LTC1503IS8-1.8 LTC1503IS8-2 S8 PART MARKING 150318 15032 Consult factory for Military grade parts. TJMAX = 125°C, θJA = 200°C/W 1 2 3 4 VOUT C1– C1+ VIN 8 7 6 5 C2– GND C2+ SHDN/SS TOP VIEW MS8 PACKAGE 8-LEAD PLASTIC MSOP TJMAX = 125°C, θJA = 150°C/W 1 2 3 4 8 7 6 5 TOP VIEW S8 PACKAGE 8-LEAD PLASTIC SO VOUT C1– C1+ VIN C2– GND C2+ SHDN/SS VIN, C1+, C1–, C2+, C2– to GND ............... – 0.3V to 6.5V SHDN/SS to GND ......................... – 0.3V to (VIN + 0.3V) VOUT Short-Circuit Duration ............................. Indefinite Commercial Temperature Range ............ – 40 °C to 85°C The q denotes specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VIN = VIN(MIN) to VIN(MAX), C1 = C2 = 1µF, CIN = COUT = 10µF unless otherwise noted. 503I18 1503I2 ABSOLUTE AXI U RATI GS PACKAGE/ORDER I FOR ATIO ELECTRICAL CHARACTERISTICS |
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