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LMZ10505 bảng dữ liệu(PDF) 5 Page - Texas Instruments |
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LMZ10505 bảng dữ liệu(HTML) 5 Page - Texas Instruments |
5 / 28 page LMZ10505 www.ti.com SNVS633G – JANUARY 2010 – REVISED APRIL 2013 Electrical Characteristics (continued) Specifications with standard typeface are for TJ = 25°C only; limits in bold face type apply over the operating junction temperature range TJ of -40°C to 125°C. Minimum and maximum limits are ensured through test, design, or statistical correlation. Typical values represent the most likely parametric norm at TJ = 25°C, and are provided for reference purposes only. VIN = VEN = 3.3V, unless otherwise indicated in the conditions column. Symbol Parameter Conditions Min(1) Typ(2) Max(1) Units THERMAL CONTROL TSD TJ for Thermal Shutdown 145 °C TSD-HYS Hysteresis for Thermal Shutdown 10 °C THERMAL RESISTANCE θJA Junction to Ambient See(3) 20 °C/W θJC Junction to Case No air flow 1.9 °C/W PERFORMANCE PARAMETERS ΔVOUT Output Voltage Ripple Refer to Table 3 10 mVpk- VOUT = 2.5V pk Bandwidth Limit = 2 MHz ΔVOUT Output Voltage Ripple Refer to Table 5 5 mVpk- Bandwidth Limit = 20 MHz pk ΔVFB / VFB Feedback Voltage Line Regulation ΔVIN = 2.95V to 5.5V 0.04 % IOUT = 0A ΔVOUT / VOUT Output Voltage Line Regulation ΔVIN = 2.95V to 5.5V 0.04 % IOUT = 0A, VOUT = 2.5V ΔVFB / VFB Feedback Voltage Load Regulation IOUT = 0A to 5A 0.25 % ΔVOUT / VOUT Output Voltage Load Regulation IOUT = 0A to 5A 0.25 % VOUT = 2.5V Efficiency η Peak Efficiency (1A) VIN = 5V VOUT = 3.3V 96.1 VOUT = 2.5V 94.8 VOUT = 1.8V 93.1 % VOUT = 1.5V 92 VOUT = 1.2V 90.4 VOUT = 0.8V 86.8 η Peak Efficiency (1A) VIN = 3.3V VOUT = 2.5V 95.7 % VOUT = 1.8V 94.1 VOUT = 1.5V 93.0 VOUT = 1.2V 91.6 VOUT = 0.8V 88.3 η Full Load Efficiency (3A) VIN = 5V VOUT = 3.3V 93.1 % VOUT = 2.5V 91.2 VOUT = 1.8V 88.5 VOUT = 1.5V 86.7 VOUT = 1.2V 84.1 VOUT = 0.8V 78.2 η Full Load Efficiency (3A) VIN = 3.3V VOUT = 2.5V 89.8 % VOUT = 1.8V 86.9 VOUT = 1.5V 85.1 VOUT = 1.2V 82.5 VOUT = 0.8V 76.2 (3) θ JA measured on a 2.25” x 2.25” (5.8 cm x 5.8 cm) four layer board, with one ounce copper, thirty six 10mil thermal vias, no air flow, and 1W power dissipation. Refer to PCB Layout Diagrams or Evaluation Board Application Note: AN-2022 (SNVA421). Copyright © 2010–2013, Texas Instruments Incorporated Submit Documentation Feedback 5 Product Folder Links: LMZ10505 |
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