LM1086IS-ADJ 参数 Datasheet PDF下载

LM1086

Note 1:

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

intended to be functional, but specific performance is not guaranteed. For guaranteed specifications and the test conditions, see the Electrical Characteristics.

Note 2:

Power dissipation is kept in a safe range by current limiting circuitry. Refer to Overload Recovery in Application Notes. The value

θ

JA

for the LLP package

is specifically dependent on PCB trace area, trace material, and the number of thermal vias. For improved thermal resistance and power dissipation for the LLP

package, refer to Application Note AN-1187.

Note 3:

The maximum power dissipation is a function of T

J(MAX)

,

θ

JA

, and T

A

. The maximum allowable power dissipation at any ambient temperature

is P

D

= (T

J(MAX)

–T

A

)/θ

JA

. All numbers apply for packages soldered directly into a PC board. Refer to Thermal Considerations in the Application Notes.

Note 4:

For testing purposes, ESD was applied using human body model, 1.5kΩ in series with 100pF.

Note 5:

Typical Values represent the most likely parametric norm.

Note 6:

All limits are guaranteed by testing or statistical analysis.

Note 7:

I

FULL LOAD

is defined in the current limit curves. The I

FULL LOAD

Curve defines current limit as a function of input-to-output voltage. Note that 15W power

dissipation for the LM1086 is only achievable over a limited range of input-to-output voltage.

Note 8:

Load and line regulation are measured at constant junction temperature, and are guaranteed up to the maximum power dissipation of 15W. Power

dissipation is determined by the input/output differential and the output current. Guaranteed maximum power dissipation will not be available over the full input/output

range.

Note 9:

Dropout voltage is specified over the full output current range of the device.

Note 10:

The minimum output current required to maintain regulation.

Typical Performance Characteristics

Dropout Voltage vs. Output Current

Short-Circuit Current vs. Input/Output Difference

10094863

10094837

Load Regulation vs. Temperature

Percent Change in Output Voltage vs. Temperature

10094838

10094899

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