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LM2587S-ADJ Datasheet(PDF) 6 Page - Texas Instruments |
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LM2587S-ADJ Datasheet(HTML) 6 Page - Texas Instruments |
6 / 32 page LM2587 SNVS115D – APRIL 2000 – REVISED APRIL 2013 www.ti.com LM2587-5.0 Electrical Characteristics 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 7(1) VOUT Output Voltage VIN = 4V to 12V 5.0 4.80/4.75 5.20/5.25 V ILOAD = 500 mA to 1.45A ΔVOUT/ Line Regulation VIN = 4V to 12V 20 50/100 mV ΔVIN ILOAD = 500 mA ΔVOUT/ Load Regulation VIN = 12V 20 50/100 mV ΔILOAD ILOAD = 500 mA to 1.45A η Efficiency VIN = 12V, ILOAD = 750 mA 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 LM2587 is used as shown in Figure 7 and Figure 8, 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. LM2587-12 Electrical Characteristics 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 8(1) VOUT Output Voltage VIN = 4V to 10V 12.0 11.52/11.40 12.48/12.60 V ILOAD = 300 mA to 1.2A ΔVOUT/ Line Regulation VIN = 4V to 10V 20 100/200 mV ΔVIN ILOAD = 300 mA ΔVOUT/ Load Regulation VIN = 10V 20 100/200 mV ΔILOAD ILOAD = 300 mA to 1.2A η Efficiency VIN = 10V, ILOAD = 1A 90 % 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 40 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 LM2587 is used as shown in Figure 7 and Figure 8, 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. 6 Submit Documentation Feedback Copyright © 2000–2013, Texas Instruments Incorporated Product Folder Links: LM2587 |
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