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LMZ21700 Datasheet(PDF) 5 Page - Texas Instruments |
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LMZ21700 Datasheet(HTML) 5 Page - Texas Instruments |
5 / 37 page LMZ21700 www.ti.com SNVS872C – AUGUST 2012 – REVISED NOVEMBER 2014 7.5 Electrical Characteristics (1) Limits apply over the recommended operating junction temperature (TJ) range of -40 °C to +125 °C, unless otherwise stated. Minimum and Maximum limits are specified 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. Unless otherwise stated the following conditions apply: VIN = 12 V. PARAMETER TEST CONDITIONS MIN(1) TYP(2) MAX(1) UNIT SYSTEM PARAMETERS IQ Operating quiescent current EN = high, IOUT= 0 mA, TJ = -40°C to 85°C 17 25 μA device not switching EN = high, IOUT= 0 mA, TJ = -40°C to 125°C 17 28 μA device not switching ISD Shutdown current EN = low, TJ = -40 °C to 85 °C 1.5 4 μA EN = low, TJ = -40 °C to 125 °C 1.5 5 μA VINUVLO Input under voltage lock out 2.8 2.9 3 V rising threshold VINUVLO-HYS Input under voltage lock out 0.125 0.180 0.260 V hysteresis TSD Thermal shutdown Rising Threshold 160 °C TSD-HYST Thermal shutdown hysteresis 30 °C CONTROL VIH, ENABLE Enable logic HIGH voltage 0.9 V VIL, ENABLE Enable logic LOW voltage 0.3 V ILKG Input leakage current EN = VIN or GND 0.01 1 μA VTH_PG Power Good threshold voltage Rising (% VOUT) 92 % 95 % 98 % Falling (% VOUT) 87 % 90 % 93 % VOL_PG Power Good output low voltage IPG = -2 mA 0.07 0.3 V ILKG_PG Power Good leakage current VPG = 1.8 V 1 400 nA ISS Softstart Pin source current 2.2 2.5 2.8 μA POWER STAGE RDS(ON) High-Side MOSFET ON VIN ≥ 6 V 82 m Ω Resistance VIN = 3 V 120 Low-Side MOSFET ON VIN ≥ 6 V 40 m Ω Resistance VIN = 3 V 50 L Integrated power inductor value 2.2 μH DCR Integrated power inductor DC 92 m Ω resistance ICL-HS High-Side MOSFET Current Limit TA = 25 °C 1.2 1.5 1.9 A ICL-LS Low-Side MOSFET Current Limit TA = 25 °C 0.9 A ICL-DC Output (DC) current limit VOUT = 5.0 V, TA = 85 °C 0.95 A OUTPUT VREF Internal reference voltage 0.7869 0.803 0.8191 V IFB Feedback pin leakage current VFB = 0.8V 1 100 nA VOUT Light load initial voltage accuracy Power save mode, COUT = 22 µF, TA= -40 °C to 85 °C, 1% FB -2.3 % 2.8 % Resistors VOUT Load regulation VOUT = 3.3 V 0.05 % / A PWM mode operation (1) Min and Max limits are 100% production tested at 25°C. Limits over the operating temperature range are guaranteed through correlation using Statistical Quality Control (SQC) methods. Limits are used to calculate National’s Average Outgoing Quality Level (AOQL). (2) Typical numbers are at 25°C and represent the most likely parametric norm. Copyright © 2012–2014, Texas Instruments Incorporated Submit Documentation Feedback 5 Product Folder Links: LMZ21700 |
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