Datasheet

3
LT1963 Series
1963fc
PARAMETER CONDITIONS MIN TYP MAX UNITS
Minimum Input Voltage (Notes 4,12) I
LOAD
= 0.5A 1.9 V
I
LOAD
= 1.5A 2.5V < V
IN
< 20V, 1mA < I
LOAD
< 1.5A ● 2.1 2.5 V
Regulated Output Voltage (Note 5) LT1963-1.5 V
IN
= 2.21V, I
LOAD
= 1mA 1.477 1.500 1.523 V
2.5V < V
IN
< 20V, 1mA < I
LOAD
< 1.5A ● 1.447 1.500 1.545 V
LT1963-1.8 V
IN
= 2.3V, I
LOAD
= 1mA 1.773 1.800 1.827 V
2.8V < V
IN
< 20V, 1mA < I
LOAD
< 1.5A ● 1.737 1.800 1.854 V
LT1963-2.5 V
IN
= 3V, I
LOAD
= 1mA 2.462 2.500 2.538 V
3.5V < V
IN
< 20V, 1mA < I
LOAD
< 1.5A ● 2.412 2.500 2.575 V
LT1963-3.3 V
IN
= 3.8V, I
LOAD
= 1mA 3.250 3.300 3.350 V
4.3V < V
IN
< 20V, 1mA < I
LOAD
< 1.5A ● 3.200 3.300 3.400 V
ADJ Pin Voltage LT1963 V
IN
= 2.21V, I
LOAD
= 1mA 1.192 1.210 1.228 V
(Notes 4, 5) 2.5V < V
IN
< 20V, 1mA < I
LOAD
< 1.5A ● 1.174 1.210 1.246 V
Line Regulation LT1963-1.5 ∆V
IN
= 2.21V to 20V, I
LOAD
= 1mA ● 2.0 10 mV
LT1963-1.8 ∆V
IN
= 2.3V to 20V, I
LOAD
= 1mA ● 2.5 10 mV
LT1963-2.5 ∆V
IN
= 3V to 20V, I
LOAD
= 1mA ● 3.0 10 mV
LT1963-3.3 ∆V
IN
= 3.8V to 20V, I
LOAD
= 1mA ● 3.5 10 mV
LT1963 (Note 4) ∆V
IN
= 2.21V to 20V, I
LOAD
= 1mA ● 1.5 10 mV
Load Regulation LT1963-1.5 V
IN
= 2.5V, ∆I
LOAD
= 1mA to 1.5A 2 9 mV
V
IN
= 2.5V, ∆I
LOAD
= 1mA to 1.5A ● 18 mV
LT1963-1.8 V
IN
= 2.8V, ∆I
LOAD
= 1mA to 1.5A 2 10 mV
V
IN
= 2.8V, ∆I
LOAD
= 1mA to 1.5A ● 20 mV
LT1963-2.5 V
IN
= 3.5V, ∆I
LOAD
= 1mA to 1.5A 2.5 15 mV
V
IN
= 3.5V, ∆I
LOAD
= 1mA to 1.5A ● 30 mV
LT1963-3.3 V
IN
= 4.3V, ∆I
LOAD
= 1mA to 1.5A 3 20 mV
V
IN
= 4.3V, ∆I
LOAD
= 1mA to 1.5A ● 35 mV
LT1963 (Note 4) V
IN
= 2.5V, ∆I
LOAD
= 1mA to 1.5A 2 8 mV
V
IN
= 2.5V, ∆I
LOAD
= 1mA to 1.5A ● 15 mV
Dropout Voltage I
LOAD
= 1mA 0.02 0.06 V
V
IN
= V
OUT(NOMINAL)
I
LOAD
= 1mA ● 0.10 V
(Notes 6, 7, 12)
I
LOAD
= 100mA 0.10 0.17 V
I
LOAD
= 100mA ● 0.22 V
I
LOAD
= 500mA 0.19 0.27 V
I
LOAD
= 500mA ● 0.35 V
I
LOAD
= 1.5A 0.34 0.45 V
I
LOAD
= 1.5A ● 0.55 V
GND Pin Current I
LOAD
= 0mA ● 1.0 1.5 mA
V
IN
= V
OUT(NOMINAL)
+ 1V I
LOAD
= 1mA ● 1.1 1.6 mA
(Notes 6, 8)
I
LOAD
= 100mA ● 3.8 5.5 mA
I
LOAD
= 500mA ● 15 25 mA
I
LOAD
= 1.5A ● 80 120 mA
Output Voltage Noise C
OUT
= 10µF, I
LOAD
= 1.5A, BW = 10Hz to 100kHz 40 µV
RMS
ADJ Pin Bias Current (Notes 4, 9) 3 10 µA
Shutdown Threshold V
OUT
= Off to On ● 0.90 2 V
V
OUT
= On to Off ● 0.25 0.75 V
SHDN Pin Current V
SHDN
= 0V 0.01 1 µA
(Note 10) V
SHDN
= 20V 3 30 µA
Quiescent Current in Shutdown V
IN
= 6V, V
SHDN
= 0V 0.01 1 µA
Ripple Rejection V
IN
– V
OUT
= 1.5V (Avg), V
RIPPLE
= 0.5V
P-P
,5563dB
f
RIPPLE
= 120Hz, I
LOAD
= 0.75A
The ● denotes specifications which apply over the full operating temperature range, otherwise specifications are T
A
= 25°C. (Note 3)
ELECTRICAL CHARACTERISTICS