Datasheet

LTC3025-1/LTC3025-2/
LTC3025-3/LTC3025-4
3
30251234ff
elecTrical characTerisTics
The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. V
IN
= 1.5V, V
BIAS
= 3.6V, C
OUT
= 1µF, C
IN
= 0.1µF, C
BIAS
= 0.1µF
(all capacitors ceramic) unless otherwise noted. (Note 3)
PARAMETER CONDITIONS MIN TYP MAX UNITS
V
IN
Operating Voltage (Note 4) LTC3025-1
l
0.9 5.5 V
LTC3025-2
l
1.4 5.5 V
LTC3025-3
l
1.7 5.5 V
LTC3025-4
l
2.0 5.5 V
V
BIAS
Operating Voltage (Note 4) LTC3025-1
l
2.5 5.5 V
LTC3025-2
l
2.7 5.5 V
LTC3025-3
l
3.0 5.5 V
LTC3025-4
l
3.3 5.5 V
V
BIAS
Undervoltage Lockout
l
2.2 2.5 V
V
IN
Operating Current I
OUT
= 10µA, V
OUT
= 1.2V, LTC3025-1
l
4 10 µA
V
IN
Operating Current I
OUT
= 0µA, LTC3025-2/LTC3025-3/LTC3025-4
l
4 10 µA
V
BIAS
Operating Current I
OUT
= 10µA, V
OUT
= 1.2V, LTC3025-1
l
50 80 µA
V
BIAS
Operating Current I
OUT
= 0µA, LTC3025-2/LTC3025-3/LTC3025-4
l
50 80 µA
V
IN
Shutdown Current V
SHDN
= 0V 1 5 µA
V
BIAS
Shutdown Current V
SHDN
= 0V 0.01 1 µA
V
ADJ
Regulation Voltage (Note 5) 1mA ≤ I
OUT
≤ 500mA, V
OUT
= 1.2V, 1.5V ≤ V
IN
≤ 5V, LTC3025-1
1mA ≤ I
OUT
≤ 500mA, V
OUT
= 1.2V, 1.5V ≤ V
IN
≤ 5V, LTC3025-1
l
0.395
0.392
0.4
0.4
0.405
0.408
V
V
V
SENSE
Regulation Voltage (Note 5) 1mA ≤ I
OUT
≤ 500mA, 1.5V ≤ V
IN
≤ 5V, LTC3025-2
1mA ≤ I
OUT
≤ 500mA, 1.5V ≤ V
IN
≤ 5V, LTC3025-2
l
1.185
1.176
1.2
1.2
1.215
1.224
V
V
V
SENSE
Regulation Voltage (Note 5) 1mA ≤ I
OUT
≤ 500mA, 1.7V ≤ V
IN
≤ 5V, LTC3025-3
1mA ≤ I
OUT
≤ 500mA, 1.7V ≤ V
IN
≤ 5V, LTC3025-3
l
1.481
1.470
1.5
1.5
1.519
1.530
V
V
V
SENSE
Regulation Voltage (Note 5) 1mA ≤ I
OUT
≤ 500mA, 2.0V ≤ V
IN
≤ 5V, LTC3025-4
1mA ≤ I
OUT
≤ 500mA, 2.0V ≤ V
IN
≤ 5V, LTC3025-4
l
1.777
1.764
1.8
1.8
1.823
1.836
V
V
I
ADJ
ADJ Input Current V
ADJ
= 0.45V, LTC3025-1 –50 0 50 nA
OUT Load Regulation (Referred to ADJ Pin) ∆I
OUT
= 1mA to 500mA, LTC3025-1 –0.35 mV
OUT Load Regulation ∆I
OUT
= 1mA to 500mA, LTC3025-2
∆I
OUT
= 1mA to 500mA, LTC3025-3
∆I
OUT
= 1mA to 500mA, LTC3025-4
–1
–1.3
–1.5
mV
mV
mV
V
IN
Line Regulation (Referred to ADJ Pin) V
IN
= 1.5V to 5V, V
BIAS
= 3.6V, V
OUT
= 1.2V,
I
OUT
= 1mA, LTC3025-1
0.07 mV
V
IN
Line Regulation V
IN
= 1.5V to 5V, V
BIAS
= 3.6V, I
OUT
= 1mA, LTC3025-2
V
IN
= 1.8V to 5V, V
BIAS
= 3.6V, I
OUT
= 1mA, LTC3025-3
V
IN
= 2.1V to 5V, V
BIAS
= 3.6V, I
OUT
= 1mA, LTC3025-4
0.21
0.26
0.32
mV
mV
mV
V
BIAS
Line Regulation V
IN
= 1.5V, V
BIAS
= 2.7V to 5V, V
OUT
= 1.2V, I
OUT
= 1mA,
LTC3025-1
l
4.5 16.5 mV
V
BIAS
Line Regulation V
IN
= 1.5V, V
BIAS
= 2.7V to 5V, I
OUT
= 1mA, LTC3025-2
V
IN
= 1.8V, V
BIAS
= 3.0V to 5V, I
OUT
= 1mA, LTC3025-3
V
IN
= 2.1V, V
BIAS
= 3.3V to 5V, I
OUT
= 1mA, LTC3025-4
l
l
l
4.5
4.5
4.5
16.5
16.5
16.5
mV
mV
mV
V
IN
to V
OUT
Dropout Voltage (Notes 4, 6) V
BIAS
= 3V, V
IN
= 1.5V, I
OUT
= 500mA,
V
ADJ
= 0.37V(LTC3025-1), V
SENSE
= 1.15V(LTC3025-2)
l
85 120
170
mV
mV
V
IN
to V
OUT
Dropout Voltage (Notes 4, 6) V
BIAS
= 3.1V, V
IN
= 1.7V, I
OUT
= 500mA,
V
SENSE
= 1.45V(LTC3025-3)
l
90 130
185
mV
mV
V
IN
to V
OUT
Dropout Voltage (Notes 4, 6) V
BIAS
= 3.4V, V
IN
= 2.0V, I
OUT
= 500mA,
V
SENSE
= 1.75V(LTC3025-4)
l
90 130
185
mV
mV
V
BIAS
to V
OUT
Dropout Voltage (Note 4) LTC3025-1
l
1.5 V