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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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LP3913 датащи(PDF) 12 Page - Texas Instruments |
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LP3913 датащи(HTML) 12 Page - Texas Instruments |
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12 / 70 page  LP3913 SNVS489I – NOVEMBER 2006 – REVISED SEPTEMBER 2013 www.ti.com BUCK2 CONVERTER ELECTRICAL CHARACTERISTICS (continued) Unless otherwise noted, VIN3 = 3.6V, VOUT = default value, CVIN3 = 10 µF, CSW1 = 10 µF, LSW2 = 2.2 µH Typical values and limits appearing in normal type apply for TJ = 25°C. Limits appearing in boldface type apply over the entire junction temperature range for operation, 0°C to +125°C. Modulation mode is PWM mode with automatic switch to PFM at light loads. Symbol Parameter Conditions Min Typ Max Units IOUT Continuous Output 600 mA Current Peak Output Current 850 1000 1150 mA Limit IPFM Max ILOAD, PFM 75 mA Mode IQ Quiescent Current IOUT = 0 mA 30 90 µA Buck2 Disabled 1 FOSC Internal Oscillator PWM Mode 2 MHz Frequency η Peak Efficiency 90 % TON Turn-on Time To 95% Level (1) 1 ms (1) Specified by design. Not production tested. BUCK3 ELECTRICAL CHARACTERISTICS Unless otherwise noted, VIN4 = 3.6V, CVIN4 = 10 µF, CBB = 22 µF, LBB = 2.2 µH Typical values and limits appearing in normal type apply for TJ = 25°C. Limits appearing in boldface type apply over the entire junction temperature range for operation, 0°C to +125°C. Modulation mode is PWM mode with automatic switch to PFM at light loads. Symbol Parameter Conditions Min Typ Max Units VIN4 Input Voltage IOUTMAX = 500 mA 2.7 5.7 V VOUT Range Output Voltage 1.80V – 3.30V in 50 mV 1.8 3.3 V Programming Range Steps ΔVOUT Static Output Voltage IOUT = 0 mA–500 mA, Tolerance Including Line and Load −4 4 % Regulation Line Regulation IOUT = 10 mA 0.2 %/V Load Regulation 100 mA < IOUT < 500 mA 0.0016 %/mA IOUT Continuous Output 500 mA Current Peak Inductor Current VOUT = 3.3V 900 1200 mA Limit 1A Load at VIN = 2.7V IPFM Max ILOAD, PFM 75 mA Mode IQ Quiescent Current IOUT = 0 mA PFM No 80 Switching µA Buck3 Disabled 1 FOSC Internal Oscillator PWM Mode 2 MHz Frequency η Peak Efficiency 93 % TON Turn-on Time To 95% Level (1) 1 ms (1) Specified by design. Not production tested. 12 Submit Documentation Feedback Copyright © 2006–2013, Texas Instruments Incorporated Product Folder Links: LP3913 |
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