LP3985

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SNVS087AC – OCTOBER 2000 – REVISED MAY 2013

Recommended Output Capacitor

Limit

Nominal

Symbol

Parameter

Conditions

Units

Value

Min

Max

Output Capacitor

1.0

0.7

µF

ESR

5

500

m

Ω

(1)

The minimum value of capacitance for stability and correct operation is 0.7µF. The Capacitor tolerance should be ± 30% or better over

the temperature range. The full range of operating conditions for the capacitor in the application should be considered during device

selection to ensure this minimum capacitance specification is met. The recommended capacitor type is X7R to meet the full device

temperature spec of -40ºC to 125ºC. See the capacitor section in Application Hints.

Timing Diagrams

Figure 5. Line Transient Input Test Signal

Figure 6. PSRR Input Test Signal

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