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LM3670MF-1.8 데이터시트(PDF) 5 Page - Texas Instruments |
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LM3670MF-1.8 데이터시트(HTML) 5 Page - Texas Instruments |
5 / 25 page LM3670 www.ti.com SNVS250E – NOVEMBER 2004 – REVISED FEBRUARY 2013 Electrical Characteristics Limits in standard typeface are for TJ = 25°C. Limits in boldface type apply over the full operating junction temperature range ( −40°C ≤ TJ ≤ +125°C). Unless otherwise noted VIN = 3.6V, VOUT = 1.8V, IO = 150mA, EN = VIN Symbol Parameter Condition Min Typ Max Units VIN Input Voltage Range (1) 2.5 5.5 V VOUT Fixed Output Voltage: 1.2V 2.5V ≤ VIN ≤ 5.5V -2.0 +4.0 % IO = 10 mA 2.5V ≤ VIN ≤ 5.5V -4.5 +4.0 0 mA ≤ IO ≤ 150 mA Fixed Output Voltage: 1.5V 2.5V ≤ VIN ≤ 5.5V -2.5 +4.0 % IO = 10 mA 2.5V ≤ VIN ≤ 5.5V -5.0 +4.0 0 mA ≤ IO ≤ 350 mA Fixed Output Voltage: 1.6V, 2.5V ≤ VIN ≤ 5.5V -2.5 +4.0 % 1.875V IO = 10 mA 2.5V ≤ VIN ≤ 5.5V -5.5 +4.0 0 mA ≤ IO ≤ 350 mA Fixed Output Voltage: 1.8V 2.5V ≤ VIN ≤ 5.5V -1.5 +3.0 % IO = 10 mA 2.5V ≤ VIN ≤ 5.5V −4.5 +3.0 0 mA ≤ IO ≤ 350 mA Fixed Output Voltage: 2.5V, 3.3V 3.6V ≤ VIN ≤ 5.5V -2.0 +4.0 % IO = 10 mA 3.6V ≤ VIN ≤ 5.5V -6.0 +4.0 0 mA ≤ IO ≤ 350 mA Adjustable Output Voltage 2.5V ≤ VIN ≤ 5.5V -2.5 +4.5 % (2) IO = 10 mA 2.5V ≤ VIN ≤ 5.5V -4.0 +4.5 0 mA ≤ IO ≤ 150 mA Line_reg Line Regulation 2.5V ≤ VIN ≤ 5.5V 0.26 %/V IO = 10 mA Load_reg Load Regulation 150 mA ≤ IO ≤ 350 mA 0.0014 %/mA VREF Internal Reference Voltage 0.5 V IQ_SHDN Shutdown Supply Current TA=85ºC 0.1 1 µA IQ DC Bias Current into VIN No load, device is not switching 15 30 µA (VOUT forced higher than programmed output voltage) VUVLO Minimum VIN below which VOUT V 2.4 will be disabled RDSON (P) Pin-Pin Resistance for PFET VIN=VGS=3.6V 360 690 m Ω RDSON (N) Pin-Pin Resistance for NFET VIN=VGS=3.6V 250 660 m Ω ILKG (P) P Channel Leakage Current VDS=5.5V 0.1 1 µA ILKG (N) N Channel Leakage Current VDS=5.5V 0.1 1.5 µA ILIM Switch Peak Current Limit 400 620 750 mA η Efficiency ILOAD = 1 mA 91 (VIN = 3.6V, VOUT = 1.8V) ILOAD = 10 mA 94 ILOAD = 100 mA 94 % ILOAD = 200 mA 94 ILOAD = 300 mA 92 ILOAD = 350 mA 90 VIH Logic High Input 1.3 V VIL Logic Low Input 0.4 V (1) The input voltage range recommended for the specified output voltages are given below: VIN = 2.5V to 5.5V for 0.7V ≤ VOUT < 1.875VVIN = ( VOUT + VDROP OUT) to 5.5V for 1.875 ≤ VOUT≤ 3.3VWhere VDROP OUT = ILOAD * (RDSON (P) + RINDUCTOR) (2) Output voltage specification for the adjustable version includes tolerance of the external resistor divider. Copyright © 2004–2013, Texas Instruments Incorporated Submit Documentation Feedback 5 Product Folder Links: LM3670 |
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