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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) 11 Page - Texas Instruments |
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LP3913 датащи(HTML) 11 Page - Texas Instruments |
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11 / 70 page  LP3913 www.ti.com SNVS489I – NOVEMBER 2006 – REVISED SEPTEMBER 2013 LDO2: LOW DROPOUT LINEAR REGULATOR (continued) Unless otherwise noted VIN1 = 3.6V, IMAX = 150 mA, VOUT = Default Value, CVDD = 10.0 µF, CLDO2 = 1.0 µF, ESR = 5 mΩ–500 m Ω, CVREFH = 100 nF. 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. Symbol Parameter Conditions Min Typ Max Units VIN – VOUT Dropout Voltage Load Current = IMAX 60 150 mV PSRR Power Supply Ripple F = 1 kHz, Load Current = 50 Rejection IMAX dB F = 10 kHz, Load Current = 35 IMAX eN Analog Supply Output 10 Hz < F < 100 kHz 50 µVrms Noise Voltage RSHUNT LDO Output Impedance LDO Disabled, VOUT = 200 Ω Default Value BUCK1 CONVERTER ELECTRICAL CHARACTERISTICS Unless otherwise noted, VIN2 = 3.6 V, VOUT = default value, CVIN2 = 10 µF, CSW1 = 10 µF, LSW1 = 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 VIN2 Input Voltage 2.7 6.0 V VOUT Range Output Voltage 0.80V–2.00V in 50 mV Steps 0.8 2.0 V Programming Range ΔVOUT Static Output Voltage IOUT = 200 mA, Including −3 3 % Tolerance Line and Load Regulation Line Regulation IOUT = 10 mA 0.2 %/V VIN2 = 2.5V − VDD Load Regulation 100 mA < IOUT < 300 mA 0.002 %/mA 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 Buck1 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. BUCK2 CONVERTER ELECTRICAL CHARACTERISTICS 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 VIN3 Input Voltage 2.7 6.0 V VOUT Range Output Voltage 1.80V–3.30V in 100 mV 1.8 3.3 V Programming Range Steps ΔVOUT Static Output Voltage IOUT = 200 mA, Including −3 3 % Tolerance Line and Load Regulation Line Regulation IOUT = 10 mA 0.2 %/V VIN3 = 2.5V − VDD Load Regulation 100 mA < IOUT < 300 mA 0.002 %/mA Copyright © 2006–2013, Texas Instruments Incorporated Submit Documentation Feedback 11 Product Folder Links: LP3913 |
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