Datasheet

LP5900
www.ti.com SNVS358O –JULY 2005–REVISED MAY 2013
Electrical Characteristics (continued)
Limits in standard typeface are for T
A
= 25ºC. Limits in boldface type apply over the full operating junction temperature range
(-40°C ≤ T
J
≤ +125°C). Unless otherwise noted, specifications apply to the LP5900 Typical Application Circuit (pg. 1) with: V
IN
= V
OUT (NOM)
+ 1.0V, V
EN
= 1.2V, C
IN
= C
OUT
= 0.47 μF, I
OUT
= 1.0 mA.
(1)
,
(2)
Symbol Parameter Conditions Min Typ Max Units
I
EN
Input Current at V
EN
Pin V
EN
= 5.5V and V
IN
= 5.5V 5.5
μA
(9)
V
EN
= 0.0V and V
IN
= 5.5V 0.001
Transient Characteristics
ΔV
OUT
Line Transient V
IN
= (V
OUT(NOM
) + 1.0V) to (V
OUT(NOM
) +
−2
(8)
1.6V) in 30 μs, I
OUT
= 1 mA
mV
V
IN
= (V
OUT(NOM)
+ 1.6V) to (V
OUT(NOM)
+
2
1.0V) in 30 μs, I
OUT
= 1 mA
Load Transient I
OUT
= 1 mA to 150 mA in 10 μs −110
mV
(8)
I
OUT
= 150 mA to 1 mA in 10 μs 50
Overshoot on Startup
20 mV
(8)
Turn on Time To 95% of V
OUT(NOM)
150 300 μs
(9) There is a 1 MΩ resistor between V
EN
and ground on the device.
Output & Input Capacitor, Recommended Specifications
Symbol Parameter Conditions Min Nom Max Units
C
IN
Input Capacitance Capacitance for stability 0.33 0.47 µF
C
OUT
Output Capacitance 0.33 0.47 10
ESR Output/Input Capacitance 5 500 mΩ
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