LM2567 datasheet(3/8 Pages) NSC

3 / 8 page

Electrical Characteristics (Continued)

Specifications with standard type face are for TJ e 25 C and those in bold typeface apply over full Operating Temperature

Range

Unless otherwise specified VIN e 5V VFB e VREF and ISWITCH e 0 (Note 2)

Symbol

Parameter

Conditions

Typ

Min

Max

Units

SWITCH PARAMETERS

ISWITCH

Switch

125

VCOMP

Transconductance

Switch Leakage

Switch Off (VFB e 15V)

300

Current

VSW e 50V

600

VSAT

Switch Saturation

ISW e 20A

075

Voltage

VCOMP e 12V

ICL

NPN Switch

VCOMP e 20V

Current Limit

Note 1

Absolute Maximum Ratings indicate limits beyond which damage to the device may occur Operating ratings indicate conditions the device is intended to

be functional but device parameter specifications may not be guaranteed under these conditions For guaranteed specifications and test conditions see the

Electrical Characteristics

Note 2

All limits guaranteed at room temperature (standard typeface) and at temperature extremes (boldface type) All room temperature limits are 100%

production tested All limits at temperature extremes are guaranteed via correlation using standard Statistical Quality Control (SQC) methods

Note 3

Junction-to-Ambient thermal resistanoe with approximately 1 square inch of pc board copper surrounding the leads Additional copper area will lower

thermal resistance further

Note 4

A 10 MX resistor is connected to the compensation pin (which is the error amplifier’s output) to ensure accuracy in measuring AVOL In actual applications

this pin’s load resistance should be t10 MX resulting in AVOL that is typically twice the guaranteed minimum limit

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