ld3985j29r STMicroelectronics, ld3985j29r Datasheet - Page 8

• Manufacturer Part Number: ld3985j29r
• Description: Ultra Low Drop-low Noise Bicmos Voltage Regulators Low Esr Capacitors Compatible
• Manufacturer: STMicroelectronics

Table 5.
Note:
8/22
Symbol
T
I
V
O(PK)
I
SHDN
t
C
eN
INH
ON
INH
O
1
2
3
4
5
6
Peak output current
Inhibit input logic low
Inhibit input logic high
Inhibit input current
Output noise voltage
Turn On time
Thermal shutdown
Output capacitor
Electrical characteristics for LD3985 (continued) (T
µF, C
For V
For V
Dropout voltage is the input-to-output voltage difference at which the output voltage is
100mV below its nominal value. This specification does not apply for input voltages below
2.5V.
Turn-on time is time measured between the enable input just exceeding V
and the output voltage just reaching 95% of its nominal value
Typical thermal protection hysteresis is 20 °C
The minimum capacitor value is 1 µF, anyway the LD3985 is still stable if the compensation
capacitor has a 30 % tolerance in all temperature range.
Parameter
BYP
O(NOM)
O(NOM)
(Note
= 10 nF, I
= 1.25 V, V
< 2 V, V
4)
O
I
= 1 mA, V
V
V
V
B
C
Note 5
Capacitance
ESR
= 2.5 V
O
I
INH
W
BYP
I
= 2.5V to 6V, T
= 2.5 V
≥ V
= 10 Hz to 100 kHz, C
= 0.4V, V
= 10 nF
O(NOM)
INH
Test conditions
(Note
- 5%
I
= 1.4 V, unless otherwise specified)
= 6V
J
= -40 to 125°C
6)
O
= 1µF
J
= 25 °C, V
Min.
300
1.2
1
5
I
= V
Typ.
550
100
160
±1
30
O(NOM)
INH
Max.
5000
250
High Value
0.4
+0.5 V, C
22
µV
Unit
mA
mΩ
nA
°C
µF
µs
V
RMS
I
= 1