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LM2585 Datasheet(PDF) 4 Page - Texas Instruments |
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LM2585 Datasheet(HTML) 4 Page - Texas Instruments |
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4 / 32 page  LM2585 SNVS120F – APRIL 2000 – REVISED APRIL 2013 www.ti.com LM2585-12 Symbol Parameters Conditions Typical Min Max Units SYSTEM PARAMETERS Test Circuit of Figure 20 (1) VOUT Output Voltage VIN = 4V to 10V 12.0 11.52/11.40 12.48/12.60 V ILOAD = 0.2A to 0.8A ΔVOUT/ Line Regulation VIN = 4V to 10V 20 100/200 mV ΔVIN ILOAD = 0.2A ΔVOUT/ Load Regulation VIN = 10V 20 100/200 mV ΔILOAD ILOAD = 0.2A to 0.8A η Efficiency VIN = 10V, ILOAD = 0.6A 93 % UNIQUE DEVICE PARAMETERS(2) VREF Output Reference Measured at Feedback Pin 12.0 11.79/11.76 12.21/12.24 V Voltage VCOMP = 1.0V ΔVREF Reference Voltage VIN = 4V to 40V 7.8 mV Line Regulation GM Error Amp ICOMP = −30 μA to +30 μA 0.328 0.186 0.621 mmho Transconductance VCOMP = 1.0V AVOL Error Amp VCOMP = 0.5V to 1.6V 70 41/21 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-ADJ Symbol Parameters Conditions Typical Min Max Units SYSTEM PARAMETERS Test Circuit of Figure 20 (1) VOUT Output Voltage VIN = 4V to 10V 12.0 11.52/11.40 12.48/12.60 V ILOAD = 0.2A to 0.8A ΔVOUT/ Line Regulation VIN = 4V to 10V 20 100/200 mV ΔVIN ILOAD = 0.2A ΔVOUT/ Load Regulation VIN = 10V 20 100/200 mV ΔILOAD ILOAD = 0.2A to 0.8A η Efficiency VIN = 10V, ILOAD = 0.6A 93 % UNIQUE DEVICE PARAMETERS(2) VREF Output Reference Measured at Feedback Pin 1.230 1.208/1.205 1.252/1.255 V Voltage VCOMP = 1.0V ΔVREF Reference Voltage VIN = 4V to 40V 1.5 mV Line Regulation GM Error Amp ICOMP = −30 μA to +30 μA 3.200 1.800 6.000 mmho Transconductance VCOMP = 1.0V AVOL Error Amp VCOMP = 0.5V to 1.6V 670 400/200 V/V Voltage Gain RCOMP = 1.0 MΩ (3) IB Error Amp VCOMP = 1.0V 125 425/600 nA Input Bias Current (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. 4 Submit Documentation Feedback Copyright © 2000–2013, Texas Instruments Incorporated Product Folder Links: LM2585 |
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