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LMZ10503_1006 bảng dữ liệu(PDF) 4 Page - National Semiconductor (TI) |
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LMZ10503_1006 bảng dữ liệu(HTML) 4 Page - National Semiconductor (TI) |
4 / 22 page Absolute Maximum Ratings (Note 5) If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. VIN, VOUT, EN, FB, SS to GND -0.3V to 6.0V ESD Susceptibility (Note 6) ±2 kV Power Dissipation Internally Limited Junction Temperature 150°C Storage Temperature Range -65°C to 150°C For Soldering Specs see: www.national.com/ms/MS/MS-SOLDERING.pdf Operating Ratings (Note 5) VIN to GND 2.95V to 5.5V Junction Temperature (T J) -40°C to 125°C Electrical Characteristics Specifications with standard typeface are for T J = 25°C only; limits in bold face type apply over the operating junction temperature range T J of -40°C to 125°C. Minimum and maximum limits are guaranteed through test, design, or statistical correlation. Typical values represent the most likely parametric norm at T J = 25°C, and are provided for reference purposes only. V IN = VEN = 3.3V, unless otherwise indicated in the conditions column. Symbol Parameter Conditions Min (Note 7) Typ (Note 8) Max (Note 7) Units SYSTEM PARAMETERS V FB Total Feedback Voltage Variation Including Line and Load Regulation V IN = 2.95V to 5.5V V OUT = 2.5V I OUT = 0A to 3A 0.78 0.8 0.82 V V FB Feedback Voltage Variation V IN = 3.3V, VOUT = 2.5V I OUT = 0A 0.787 0.8 0.812 V V FB Feedback Voltage Variation V IN = 3.3V, VOUT = 2.5V I OUT = 3A 0.785 0.798 0.81 V V IN(UVLO) Input UVLO Threshold (Measured at VIN pin) Rising 2.6 2.95 V Falling 1.95 2.4 I SS Soft-Start Current Charging Current 2 µA I Q Non-Switching Input Current V FB = 1V 1.7 3 mA I SD Shut Down Quiescent Current V IN = 5.5V, VEN = 0V 260 500 µA I OCL Output Current Limit (Average Current) V OUT = 2.5V 3.8 5.2 6.7 A f FB Frequency Fold-back In current limit 250 kHz PWM SECTION f SW Switching Frequency 750 1000 1160 kHz D range PWM Duty Cycle Range 0 100 % ENABLE CONTROL V EN-IH EN Pin Rising Threshold 1.23 1.8 V V EN-IF EN Pin Falling Threshold 0.8 1.06 V THERMAL CONTROL T SD T J for Thermal Shutdown 145 °C T SD-HYS Hysteresis for Thermal Shutdown 10 °C THERMAL RESISTANCE θ JA Junction to Ambient (Note 3) 20 °C/W θ JC Junction to Case No air flow 1.9 °C/W www.national.com 4 |
Số phần tương tự - LMZ10503_1006 |
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Mô tả tương tự - LMZ10503_1006 |
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