Datasheet

SN105125
150-mA LOW DROPOUT REGULATOR WITH POK
SLVS418 – JANUARY 2002
5
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
switching characteristics (see Note 4),T
A
= 25°C, V
I
= 5 V, V
(EN)
= V
I
, I
O
= 100 µA, C
L
= 1 µF(unless
otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
Power up overshoot
Maximum voltage overshoot allowed on output during
powerup
1%
t
(STEP)
Output transient time limit Time for output to return within specified regulation range 5 µs
Output transient voltage limit Voltage that load step can affect the nominal output voltage 1%
I
(SR)
Load step current slew rate I
L
= 0.1 mA to 150 mA 10 mA/µs
t
r
Power up rise time 50 µs
t
f
Power down fall time Discharge resistance = 500 Ω, V
O
< 1.08 V 60 µs
t
d(POK)
Power okay delay time V
I
> V
(POKTH)
until POK↑ 2.5 ms
NOTE 4: Assured by design, not tested in production.
thermal resistance
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
R
θJC
Thermal impedance, junction-to-case 145 °C/W
R
θJA
Thermal impedance, junction-to-ambient 235 °C/W