4
FN9220.4
December 10, 2015
Output Noise Voltage I
O
= 100µA, V
O
= 1.5V, T
A
= +25°C, C
BYP
= 0.1µF
BW = 10Hz to 100kHz (Note 6)
30 µVrms
DEVICE START-UP CHARACTERISTICS
Device Enable TIme t
EN
Time from assertion of the ENx pin to when the output voltage
reaches 95% of the VO(nom)
250 500 µs
LDO Soft-start Ramp Rate t
SSR
Slope of linear portion of LDO output voltage ramp during start-
up
30 60 µs/V
EN1, EN2 PIN CHARACTERISTICS
Input Low Voltage V
IL
-0.3 0.5 V
Input High Voltage V
IH
1.4 V
IN
+0.3 V
Input Leakage Current I
IL
, I
IH
0.1 µA
Pin Capacitance C
PIN
Informative 5 pF
POR
PIN CHARACTERISTICS
POR
Thresholds V
POR+
As a percentage of nominal output voltage 91 94 97 %
V
POR-
87 90 93 %
POR
Delay t
PLH
CPOR = 0.01µF 100 200 300 ms
t
PHL
25 µs
POR
Pin Output Low Voltage V
OL
@I
OL
= 1.0mA 0.2 V
POR
Pin Internal Pull-Up
Resistance
R
POR
78 100 180 k
NOTES:
6. Limits established by characterization and are not production tested.
7. VOx = 0.98*VOx(NOM); Valid for VOx greater than 1.85V.
8. Parts are 100% tested at +25°C. Temperature limits established by characterization and are not production tested.
Electrical Specifications Unless otherwise noted, all parameters are guaranteed over the operational supply voltage and temperature
range of the device as follows:
T
A
= -40°C to +85°C; V
IN
= (V
O
+ 0.5V) to 6.5V with a minimum V
IN
of 2.3V; C
IN
= 1µF; C
O
= 1µF;
C
BYP
= 0.01µF; C
POR
= 0.01µF (Continued)
PARAMETER SYMBOL TEST CONDITIONS
MIN
(Note 8) TYP
MAX
(Note 8) UNITS
V
POR+
V
POR+
V
POR-
<t
PHL
t
PLH
t
PHL
VO2
POR
EN2
t
EN
V
POR-
FIGURE 1. TIMING PARAMETER DEFINITION
ISL9012
