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LM3269 Datenblatt(PDF) 5 Page - Texas Instruments |
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LM3269 Datenblatt(HTML) 5 Page - Texas Instruments |
5 / 27 page LM3269 www.ti.com SNVS793D – NOVEMBER 2011 – REVISED MAY 2015 6.5 Electrical Characteristics Unless otherwise specified, typical (TYP) limits are for TA = TJ = 25°C, and minimum (MIN) and maximum (MAX) limits apply over the full operating ambient temperature range ( −30°C ≤ TJ = TA ≤ +85°C). Unless otherwise noted, specifications apply to the Figure 16 with: PVIN = EN = 3.6V. (1) (2) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT VFB, min Min FB voltage VCON = 0.2 V 0.53 0.60 0.67 V VFB, max Max FB voltage VCON = 1.4 V 4.13 4.2 4.27 IQ_PWM Quiescent current No switching(3) 0.9 1.2 mA EN = 0 V, VCON = 0 V, ISHDN Shutdown supply current 0.02 5 µA SW1 = SW2 = VOUT = 0 V Open loop(4) ILIM_L Input current limit (large) 1500 1700 1900 VCON = 1.2 V mA Open loop(4) ILIM_S Input current limit (small) 750 850 VCON = 0.2 V Gain Internal gain(5) 0.2 V ≤ VCON ≤ 1.4 V 3 V/V IEN EN pin pulldown current 5 10 µA IVCON VCON pin leakage current –1 1 VIH Logic high input threshold for EN 1.2 V VIL Logic low input threshold for EN 0.6 Leakage into VOUT pin of buck- EN = 0 V, VOUT ≤ 4.2 V IOUT_LEAKAGE 5 µA boost PVIN ≤ 5.5 V (1) All voltages are with respect to the potential at the GND pins. (2) Min and Max limits are specified by design, test, or statistical analysis. Typical numbers are not verified, but do represent the most likely norm. (3) IQ specified here is when the part is not switching. (4) The parameters in the electrical characteristics table are tested under open loop conditions at PVIN = 3.6 V. (5) To calculate VOUT, use the following equation: VOUT = VCON × 3. 6.6 System Characteristics The following spec table entries are specified by design and verification provided the component values in the typical application circuit are used (L = 2.2 µH, DCR = 110 m Ω, MIPSZ2520D2R2/FDK; CIN = 10 µF, 6.3 V, C1608X5R0J106K/TDK (0603); COUT = 4.7 µF, 6.3 V, C1608X5R0J475M/TDK (0603). These parameters are not verified by production testing. Typical (TYP) limits are for TA = TJ = 25°C; minimum (MIN) and maximum (MAX) limits apply over the full operating ambient temperature range ( −30°C ≤ TJ = TA ≤ 85°C) and over the VBATT = PVIN = 2.7 V to 5.5 V, unless otherwise specified. PARAMETER TEST CONDITIONS MIN TYP MAX UNIT IOUT_MAX Max output current VBATT ≥ 3 V, VOUT = 3.8 V 750 mA VCON_LIN VCON linearity 0.2 V ≤ VCON ≤ 1.4 V –2.5% 2.5% VBATT ≥ 3.2 V, 0.6 V ≤ VOUT ≤ 4.2 V, Ripple voltage 15 50 0 mA ≤ IOUT ≤ 430 mA, TA = 25°C PFM ripple VOUT = 0.6 V, IOUT = 5 mA 45 VO_RIPPLE mV VBATT = 3 V to 5 V, Ripple voltage in mode TR = TF = 30 µs 50 transition 3.3 V ≤ VOUT ≤ 4.2 V VBATT = 2.7 V to 4.7 V, VOUT = 3.8 V, Line regulation 10 IOUT = 500 mA ΔVOUT mV Load regulation IOUT = 0 mA to 500 mA, VBATT = 2.7 V to 4.7 V 20 VBATT = 3.2 V to 4.7 V, VOUT_TR VOUT rise time VOUT = 1.4 V to 3 V, 0.1 µs < Tr_VCON < 1 µs 10 µs RLOAD = 11.4 Ω Copyright © 2011–2015, Texas Instruments Incorporated Submit Documentation Feedback 5 Product Folder Links: LM3269 |
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