Datasheet

Data Sheet ADP1740/ADP1741
Rev. F | Page 3 of 20
SPECIFICATIONS
V
IN
= (V
OUT
+ 0.4 V) or 1.6 V (whichever is greater), I
OUT
= 100 mA, C
IN
= C
OUT
= 4.7 µF, T
A
= 25°C, unless otherwise noted.
Table 1.
Parameter Symbol Test Conditions/Comments Min Typ Max Unit
INPUT VOLTAGE RANGE V
IN
T
J
= −40°C to +125°C 1.6 3.6 V
OPERATING SUPPLY CURRENT
1
I
GND
I
OUT
= 500 µA 90 µA
I
OUT
= 100 mA 400 µA
I
OUT
= 100 mA, T
J
= −40°C to +125°C
800
µA
I
OUT
= 2 A 1.5 mA
I
OUT
= 2 A, T
J
= −40°C to +125°C 1.8 mA
SHUTDOWN CURRENT I
GND-SD
EN = GND, V
IN
= 3.6 V 2 6 µA
EN = GND, V
IN
= 1.6 V, T
J
= −40°C to +85°C 30 µA
EN = GND, V
IN
= 3.6 V, T
J
= −40°C to +85°C 100 µA
OUTPUT VOLTAGE ACCURACY
Fixed Output Voltage Accuracy
(ADP1740)
V
OUT
I
OUT
= 100 mA −1 +1 %
I
OUT
= 10 mA to 2 A −1.5 +1.5 %
10 mA < I
OUT
< 2 A, T
J
= −40°C to +125°C −2 +2 %
Adjustable Output Voltage
Accuracy (ADP1741)
2
V
ADJ
I
OUT
= 100 mA 0.495 0.5 0.505 V
I
OUT
= 10 mA to 2 A 0.492 0.508 V
10 mA < I
OUT
< 2 A, T
J
= −40°C to +125°C 0.490 0.510 V
LINE REGULATION ∆V
OUT
/∆V
IN
V
IN
= (V
OUT
+ 0.4 V) to 3.6 V, T
J
= −40°C to +125°C −0.3 +0.3 %/V
LOAD REGULATION
3
∆V
OUT
/∆I
OUT
I
OUT
= 10 mA to 2 A, T
J
= −40°C to +125°C 0.5 %/A
DROPOUT VOLTAGE
4
V
DROPOUT
I
OUT
= 100 mA, V
OUT
≥ 1.8 V 10 mV
I
OUT
= 100 mA, V
OUT
≥ 1.8 V, T
J
= −40°C to +125°C 18 mV
I
OUT
= 2 A, V
OUT
≥ 1.8 V 160 mV
I
OUT
= 2 A, V
OUT
≥ 1.8 V, T
J
= −40°C to +125°C 280 mV
START-UP TIME
5
t
START-UP
C
SS
= 0 nF, I
OUT
= 10 mA 200 µs
C
SS
= 10 nF, I
OUT
= 10 mA 5.2 ms
CURRENT-LIMIT THRESHOLD
6
I
LIMIT
2.4 3 5 A
THERMAL SHUTDOWN
Thermal Shutdown Threshold
TS
SD
T
J
rising
150
°
C
Thermal Shutdown Hysteresis TS
SD-HYS
15
°C
PG OUTPUT LOGIC LEVEL
PG Output Logic High PG
HIGH
1.6 V ≤ V
IN
≤ 3.6 V, I
OH
< 1 µA 1.0 V
PG Output Logic Low PG
LOW
1.6 V ≤ V
IN
≤ 3.6 V, I
OL
< 2 mA 0.4 V
PG Output Delay from EN
Transition, Low to High
1.6 V ≤ V
IN
≤ 3.6 V, C
SS
= 10 nF 5.5 ms
PG OUTPUT THRESHOLD
Output Voltage Falling PG
FAL L
1.6 V ≤ V
IN
≤ 3.6 V −10 %
Output Voltage Rising PG
RISE
1.6 V ≤ V
IN
≤ 3.6 V −6.5 %
EN INPUT
EN Input Logic High V
IH
1.6 V ≤ V
IN
≤ 3.6 V 1.2 V
EN Input Logic Low
V
IL
1.6 V ≤ V
IN
≤ 3.6 V
0.4
V
EN Input Leakage Current V
I-LEAKAGE
EN = VIN or GND 0.1 1 µA
UNDERVOLTAGE LOCKOUT UVLO
Input Voltage Rising UVLO
RISE
1.58 V
Input Voltage Falling UVLO
FALL
1.25 V
Hysteresis UVLO
HYS
100 mV
SOFT START CURRENT
I
SS
1.6 V ≤ V
IN
≤ 3.6 V
0.6
0.9
1.2
µA
ADJ INPUT BIAS CURRENT
(ADP1741)
ADJ
I-BIAS
1.6 V ≤ V
IN
≤ 3.6 V, T
J
= −40°C to +125°C 10 150 nA