Datasheet

3
LTC1844 Series
1844fa
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
LTC1844-1.5 V
IN
= 2.0V to 6.5V, I
OUT
= 0mA to 150mA –1.50 1.50 %V
OUT
LTC1844-1.5 V
IN
= 2.2V to 6.5V, I
OUT
= 0mA to 150mA ● –2.00 2.00 %V
OUT
LTC1844-1.5 V
IN
= 2.0V to 6.5V, I
OUT
= 0mA to 100mA ● –2.50 2.00 %V
OUT
LTC1844-BYP V
IN
= 1.75V to 6.5V, I
OUT
= 0mA to 150mA –1.50 1.50 %V
OUT
LTC1844-BYP V
IN
= 2.2V to 6.5V, I
OUT
= 0mA to 150mA ● –1.75 1.75 %V
OUT
LTC1844-BYP V
IN
= 1.75V to 6.5V, I
OUT
= 0mA to 100mA ● –3.50 1.75 %V
OUT
LTC1844-SD V
IN
= 1.75V to 6.5V, I
OUT
= 0mA to 150mA –1.50 1.50 %V
OUT
LTC1844-SD V
IN
= 2.2V to 6.5V, I
OUT
= 0mA to 150mA ● –1.75 1.75 %V
OUT
LTC1844-SD V
IN
= 1.75V to 6.5V, I
OUT
= 0mA to 100mA ● –3.50 1.75 %V
OUT
V
ADJ
ADJ Pin Voltage (Notes 3, 5) LTC1844-BYP V
IN
= 1.75V to 6.5V, I
OUT
= 0mA to 150mA 1.233 1.25 1.271 V
LTC1844-BYP V
IN
= 2.2V to 6.5V, I
OUT
= 0mA to 150mA ● 1.230 1.274 V
LTC1844-BYP V
IN
= 1.75V to 6.5V, I
OUT
= 0mA to 100mA ● 1.208 1.274 V
LTC1844-SD V
IN
= 1.75V to 6.5V, I
OUT
= 0mA to 150mA 1.233 1.25 1.271 V
LTC1844-SD V
IN
= 2.2V to 6.5V, I
OUT
= 0mA to 150mA ● 1.230 1.274 V
LTC1844-SD V
IN
= 1.75V to 6.5V, I
OUT
= 0mA to 100mA ● 1.208 1.274 V
∆V
LNR
Line Regulation (Notes 3, 5) LTC1844-3.3 V
IN
= 3.4V to 6.5V, I
L
= 1mA ● 420 mV
LTC1844-2.8 V
IN
= 2.9V to 6.5V, I
L
= 1mA ● 420 mV
LTC1844-2.5 V
IN
= 2.6V to 6.5V, I
L
= 1mA ● 420 mV
LTC1844-1.8 V
IN
= 2.2V to 6.5V, I
L
= 1mA ● 420 mV
V
IN
= 1.9V to 6.5V, I
L
= 1mA 4 20 mV
V
IN
= 1.9V to 6.5V, I
L
= 1mA ● 430 mV
LTC1844-1.5 V
IN
= 2.2V to 6.5V, I
L
= 1mA ● 420 mV
V
IN
= 1.6V to 6.5V, I
L
= 1mA 4 20 mV
V
IN
= 1.6V to 6.5V, I
L
= 1mA ● 480 mV
LTC1844-BYP V
IN
= 2.2V to 6.5V, I
L
= 1mA ● 420 mV
V
IN
= 1.6V to 6.5V, I
L
= 1mA 4 20 mV
V
IN
= 1.6V to 6.5V, I
L
= 1mA ● 480 mV
LTC1844-SD V
IN
= 2.2V to 6.5V, I
L
= 1mA ● 420 mV
V
IN
= 1.6V to 6.5V, I
L
= 1mA 4 20 mV
V
IN
= 1.6V to 6.5V, I
L
= 1mA ● 480 mV
∆V
LDR
Load Regulation (Notes 3, 5) LTC1844-3.3 V
IN
= 3.8V, I
OUT
= 0mA to 150mA ● 920 mV
LTC1844-2.8 V
IN
= 3.3V, I
OUT
= 0mA to 150mA ● 920 mV
LTC1844-2.5 V
IN
= 3.0V, I
OUT
= 0mA to 150mA ● 920 mV
LTC1844-1.8 V
IN
= 2.3V, I
OUT
= 0mA to 150mA ● 920 mV
LTC1844-1.5 V
IN
= 2.2V, I
OUT
= 0mA to 150mA ● 920 mV
V
IN
= 2.0V, I
OUT
= 0mA to 100mA ● 940 mV
LTC1844-BYP V
IN
= 2.2V, I
OUT
= 0mA to 150mA ● 920 mV
V
IN
= 1.75V, I
OUT
= 0mA to 100mA ● 950 mV
LTC1844-SD V
IN
= 2.2V, I
OUT
= 0mA to 150mA ● 920 mV
V
IN
= 1.75V, I
OUT
= 0mA to 100mA ● 950 mV
∆V
DO
Dropout Voltage (Notes 6, 7) LTC1844-3.3 I
OUT
= 50mA ● 30 55 mV
I
OUT
= 150mA ● 90 150 mV
LTC1844-2.8 I
OUT
= 50mA ● 35 60 mV
I
OUT
= 150mA ● 105 165 mV
LTC1844-2.5 I
OUT
= 50mA ● 45 75 mV
I
OUT
= 150mA ● 135 200 mV
LTC1844-1.8 I
OUT
= 50mA ● 85 120 mV
I
OUT
= 150mA ● 230 300 mV
ELECTRICAL CHARACTERISTICS
The ● denotes specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. V
IN
= V
OUT
+ 0.5V, unless otherwise noted. (Note 2)