LP3996_14 Datasheet, PDF (9/26 Pages) Texas Instruments – Dual Linear Regulator with 300mA and 150mA Outputs and Power-On-Reset

LP3996
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Output Capacitor, Recommended Specifications
Symbol
Parameter
Conditions
C_OUT
Output Capacitance
Capacitance
(1)
ESR
SNVS360B – NOVEMBER 2006 – REVISED JANUARY 2008
Nom
1.0
Limit
Min
Max
0.7
5
500
Units
µF
mΩ
(1) The Capacitor tolerance should be 30% or better over temperature. The full operating conditions for the application should be
considered when selecting a suitable capacitor to ensure that the minimum value of capacitance is always met. Recommended
capacitor is X7R. However, depending on the application, X5R, Y5V and Z5U can also be used. (See capacitor section in Applications
Hints).
Transient Test Conditions
Figure 2. PSRR Input Signal
V_OUT
tr
V_OUT ± tolerance
tr
V_IN
V_OUT(NOM) + 1V
t_rise = t_fall = 10 Ps
Line Step = 1V
I_LOAD(LDO1) = 150 mA
I_LOAD(LDO2) = 300 mA
Figure 3. Line Transient Input Test Signal
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