Datasheet

LP2985
SLVS522N –JULY 2004–REVISED JUNE 2011 www.ti.com
Electrical Characteristics (continued)
at specified virtual junction temperature range, V
IN
= V
OUT(NOM)
+ 1 V, V
ON/ OFF
= 2 V, C
IN
= 1 μF, I
L
= 1 mA, C
OUT
= 4.7 μF
(unless otherwise noted)
LP2985A-xx LP2985-xx
PARAMETER TEST CONDITIONS T
J
UNIT
MIN TYP MAX MIN TYP MAX
BW = 300 Hz to 50 kHz,
V
n
Output noise (RMS) C
OUT
= 10 μF, 25°C 30 30 μV
C
BYPASS
= 10 nF
ΔV
OUT
/ f = 1kHz, C
OUT
= 10 μF,
Ripple rejection 25°C 45 45 dB
ΔV
IN
C
BYPASS
= 10 nF
I
OUT(PK)
Peak output current V
OUT
≥ V
O(NOM)
– 5% 25°C 350 350 mA
I
OUT(SC)
Short-circuit current R
L
= 0 (steady state)
(3)
25°C 400 400 mA
(3) See Figure 7 in Typical Performance Characteristics.
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