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LM3269 bảng dữ liệu(PDF) 6 Page - Texas Instruments |
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LM3269 bảng dữ liệu(HTML) 6 Page - Texas Instruments |
6 / 27 page LM3269 SNVS793D – NOVEMBER 2011 – REVISED MAY 2015 www.ti.com System Characteristics (continued) 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 VBATT = 3.7 V, VOUT = 0.6 V, IOUT = 10 mA 61% −30°C ≤ TJ = TA ≤ 85°C VBATT = 3.7 V, VOUT = 1 V IOUT = 20 mA 78% −30°C ≤ TJ = TA ≤ 85°C VBATT = 3.7 V, VOUT = 1.4 V IOUT = 50 mA 85% −30°C ≤ TJ = TA ≤ 85°C η Efficiency VBATT = 3.7 V, VOUT = 2.7 V IOUT = 200 mA 95% −30°C ≤ TJ = TA ≤ 85°C VBATT = 3.7 V, VOUT = 3.3 V, IOUT = 480 mA 94% −30°C ≤ TJ = TA ≤ 85°C VBATT = 3 V, VOUT = 3.6 V, IOUT = 200 mA 95% −30°C ≤ TJ = TA ≤ 85°C 6.7 Switching Characteristics over operating free-air temperature range (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT EN = L to H, VBATT = 3.7 V, VOUT = Turnon time (time for output to reach 3.5 V, TON 35 50 µs 0V →90% × 3.5 V) IOUT = 0 mA −30°C ≤ TJ = TA ≤ 85°C VBATT = 3.7 V, VOUT = 0.6 V, IOUT = FOSC_PFM PFM operating frequency 63 kHz 13 mA FOSC_PWM Internal oscillator frequency PWM 2.1 2.4 2.7 MHz Boost 50% DMAX Maximum duty cycle Buck 100% VBATT = 3.2 V to 4.7 V, VOUT = 1.4 V to 3 V, 0.1 µs < VOUT_TR VCON change to 90% 10 µs Tr_VCON < 1 µs RLOAD = 11.4 Ω 6 Submit Documentation Feedback Copyright © 2011–2015, Texas Instruments Incorporated Product Folder Links: LM3269 |
Số phần tương tự - LM3269_16 |
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Mô tả tương tự - LM3269_16 |
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