lp2980im5-1.8 National Semiconductor Corporation, lp2980im5-1.8 Datasheet - Page 5

• Manufacturer Part Number: lp2980im5-1.8
• Description: Ic Reg Ldo Micropower Sot23-5
• Manufacturer: National Semiconductor Corporation

The value of θ
for the SOT-23 package is 220°C/W. Exceeding the maximum allowable power dissipation will cause excessive die temperature, and the regulator
JA
will go into thermal shutdown.
Note 4: If used in a dual-supply system where the regulator load is returned to a negative supply, the LP2980LV output must be diode-clamped to ground.
Note 5: The output PNP structure contains a diode between the V
and V
terminals that is normally reverse-biased. Reversing the polarity from V
to
IN
OUT
IN
V
will turn on this diode and possibly damage the device (see Application Hints).
OUT
Note 6: Limits are 100% production tested at 25°C. Limits over the operating temperature range are guaranteed through correlation using Statistical Quality
Control (SQC) methods. The limits are used to calculate National's Average Outgoing Quality Level (AOQL).
Note 7: The ON/OFF input must be properly driven to prevent misoperation. For details, refer to Application Hints.
Note 8: See Typical Performance Characteristics curves.
5
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101091 Version 6 Revision 1
Print Date/Time: 2008/12/05 10:23:42