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Zakładka z wyszukiwarką danych komponentów |
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Zakładka z wyszukiwarką danych komponentów |
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LM3208TLX/NOPB Arkusz danych(PDF) 5 Page - Texas Instruments |
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LM3208TLX/NOPB Arkusz danych(HTML) 5 Page - Texas Instruments |
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5 / 25 page  LM3208 www.ti.com SNVS404B – APRIL 2006 – REVISED MARCH 2013 SYSTEM CHARACTERISTICS The following spec table entries are specified by design providing the component values in the typical application circuit are used (L = 3.0µH, DCR = 0.12 Ω, FDK MIPW3226D3R0M; CIN = 10µF, 6.3V, 0805, TDK C2012X5R0J106K; COUT = 4.7µF, 6.3V, 0603, TDK C1608X5R0J475M). These parameters are not specified by production testing. Min and Max values are specified over the ambient temperature range TA = −30°C to 85°C. Typical values are specified at PVIN = VDD = EN = 3.6V and TA = 25°C unless otherwise specified. Symbol Parameter Conditions Min Typ Max Unit TRESPONSE Time for VOUT to rise from 0.8V VIN = 4.2V, RLOAD = 5.5Ω 25 40 µs to 3.4V (to reach 3.35V) Time for VOUT to fall from 3.4V VIN = 4.2V, RLOAD = 15Ω 35 45 µs to 0.8V CCON VCON input capacitance VCON = 1V, VIN = 2.7V to 5.5V, 5 10 pF Test frequency = 100kHz CEN EN input capacitance EN = 2V, VIN = 2.7V to 5.5V, 5 10 pF Test frequency = 100kHz VCON RDSON(P) management threshold Threshold for PFET RDSON(P) to change 0.39 0.42 0.45 V (S>L) from 960m Ω to 140mΩ VCON RDSON(P) management threshold Threshold for PFET RDSON(P) to change 0.37 0.40 0.43 V (L>S) from 140m Ω to 960mΩ IOUT, MAX Maximum Output Current VIN = 2.7V to 5.5V, VCON = 0.45V to 1.44V, 650 mA L = MIPW3226D3R0 VIN = 2.7V to 5.5V, VCON = 0.32V to 0.45V, 400 mA L = MIPW3226D3R0 Linearity Linearity in control range 0.32V VIN = 3.9V (1) –3 +3 % to 1.44V Monotonic in nature −50 +50 mV TON Turn on time EN = Low to High, VIN = 4.2V, (time for output to reach 97% of VOUT = 3.4V, 40 60 µs final value after Enable low to IOUT ≤ 1mA high transition) η Efficiency VIN = 3.6V, VOUT = 0.8V, IOUT = 90mA 81 % VIN = 3.6V, VOUT = 1.5V, IOUT = 150mA 89 % VIN = 3.9V, VOUT = 3.4V, IOUT = 400mA 95 % VOUT_ripple Ripple voltage at VIN = 2.7V to 4.5V, VOUT = 0.8V to 3.4V, no pulse skip condition Differential voltage = VIN – VOUT > 1V, 10 mVp-p IOUT = 0mA to 400mA (2) Ripple voltage at VIN = 5.5V to dropout, VOUT = 3.4V, 60 mVp-p pulse skip condition IOUT = 650mA (2) Line_tr Line transient response VIN = 3.6V to 4.2V, TR = TF = 10µs, 50 mVpk VOUT = 0.8V, IOUT = 100mA Load_tr Load transient response VIN = 3.1 / 3.6 / 4.5V, VOUT = 0.8V, 50 mVpk IOUT = 50mA to 150mA Max Duty Maximum duty cycle 100 % cycle (1) Linearity limits are ±3% or ±50mV whichever is larger. (2) Ripple voltage should be measured at COUT electrode on a well-designed PC board and using the suggested inductor and capacitors. Copyright © 2006–2013, Texas Instruments Incorporated Submit Documentation Feedback 5 Product Folder Links: LM3208 |
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