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LM2585 데이터시트(PDF) 3 Page - Texas Instruments |
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LM2585 데이터시트(HTML) 3 Page - Texas Instruments |
3 / 32 page LM2585 www.ti.com SNVS120F – APRIL 2000 – REVISED APRIL 2013 Electrical Characteristics LM2585-3.3 Specifications with standard type face are for TJ = 25°C, and those in bold type face apply over full Operating Temperature Range. Unless otherwise specified, VIN = 5V. Symbol Parameters Conditions Typical Min Max Units SYSTEM PARAMETERS Test Circuit of Figure 19 (1) VOUT Output Voltage VIN = 4V to 12V 3.3 3.17/3.14 3.43/3.46 V ILOAD = 0.3A to 1.2A ΔVOUT/ Line Regulation VIN = 4V to 12V 20 50/100 mV ΔVIN ILOAD = 0.3A ΔVOUT/ Load Regulation VIN = 12V 20 50/100 mV ΔILOAD ILOAD = 0.3A to 1.2A η Efficiency VIN = 5V, ILOAD = 0.3A 76 % UNIQUE DEVICE PARAMETERS(2) VREF Output Reference Measured at Feedback Pin 3.3 3.242/3.234 3.358/3.366 V Voltage VCOMP = 1.0V ΔVREF Reference Voltage VIN = 4V to 40V 2.0 mV Line Regulation GM Error Amp ICOMP = −30 μA to +30 μA 1.193 0.678 2.259 mmho Transconductance VCOMP = 1.0V AVOL Error Amp VCOMP = 0.5V to 1.6V 260 151/75 V/V Voltage Gain RCOMP = 1.0 MΩ (3) (1) External components such as the diode, inductor, input and output capacitors can affect switching regulator performance. When the LM2585 is used as shown in Figure 19 and Figure 20, system performance will be as specified by the system parameters. (2) All room temperature limits are 100% production tested, and all limits at temperature extremes are specified via correlation using standard Statistical Quality Control (SQC) methods. (3) A 1.0 M Ω resistor is connected to the compensation pin (which is the error amplifier output) to ensure accuracy in measuring AVOL. LM2585-5.0 Symbol Parameters Conditions Typical Min Max Units SYSTEM PARAMETERS Test Circuit of Figure 19 (1) VOUT Output Voltage VIN = 4V to 12V 5.0 4.80/4.75 5.20/5.25 V ILOAD = 0.3A to 1.1A ΔVOUT/ Line Regulation VIN = 4V to 12V 20 50/100 mV ΔVIN ILOAD = 0.3A ΔVOUT/ Load Regulation VIN = 12V 20 50/100 mV ΔILOAD ILOAD = 0.3A to 1.1A η Efficiency VIN = 12V, ILOAD = 0.6A 80 % UNIQUE DEVICE PARAMETERS(2) VREF Output Reference Measured at Feedback Pin 5.0 4.913/4.900 5.088/5.100 V Voltage VCOMP = 1.0V ΔVREF Reference Voltage VIN = 4V to 40V 3.3 mV Line Regulation GM Error Amp ICOMP = −30 μA to +30 μA 0.750 0.447 1.491 mmho Transconductance VCOMP = 1.0V AVOL Error Amp VCOMP = 0.5V to 1.6V 165 99/49 V/V Voltage Gain RCOMP = 1.0 MΩ (3) (1) External components such as the diode, inductor, input and output capacitors can affect switching regulator performance. When the LM2585 is used as shown in Figure 19 and Figure 20, system performance will be as specified by the system parameters. (2) All room temperature limits are 100% production tested, and all limits at temperature extremes are specified via correlation using standard Statistical Quality Control (SQC) methods. (3) A 1.0 M Ω resistor is connected to the compensation pin (which is the error amplifier output) to ensure accuracy in measuring AVOL. Copyright © 2000–2013, Texas Instruments Incorporated Submit Documentation Feedback 3 Product Folder Links: LM2585 |
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