Datasheet

3
LT1962 Series
Load Regulation LT1962-2.5 V
IN
= 3.5V, ∆I
LOAD
= 1mA to 300mA 5 12 mV
V
IN
= 3.5V, ∆I
LOAD
= 1mA to 300mA ● 25 mV
LT1962-3 V
IN
= 4V, ∆I
LOAD
= 1mA to 300mA 7 15 mV
V
IN
= 4V, ∆I
LOAD
= 1mA to 300mA ● 30 mV
LT1962-3.3 V
IN
= 4.3V, ∆I
LOAD
= 1mA to 300mA 7 17 mV
V
IN
= 4.3V, ∆I
LOAD
= 1mA to 300mA ● 33 mV
LT1962-5 V
IN
= 6V, ∆I
LOAD
= 1mA to 300mA 12 25 mV
V
IN
= 6V, ∆I
LOAD
= 1mA to 300mA ● 50 mV
LT1962 (Note 4) V
IN
= 2.3V, ∆I
LOAD
= 1mA to 300mA 2 6 mV
V
IN
= 2.3V, ∆I
LOAD
= 1mA to 300mA ● 12 mV
Dropout Voltage I
LOAD
= 10mA 0.10 0.15 V
V
IN
= V
OUT(NOMINAL)
I
LOAD
= 10mA ● 0.21 V
(Notes 6, 7, 12)
I
LOAD
= 50mA 0.15 0.20 V
I
LOAD
= 50mA ● 0.28 V
I
LOAD
= 100mA 0.18 0.24 V
I
LOAD
= 100mA ● 0.33 V
I
LOAD
= 300mA 0.27 0.33 V
I
LOAD
= 300mA ● 0.43 V
GND Pin Current I
LOAD
= 0mA ● 30 75 µA
V
IN
= V
OUT(NOMINAL)
I
LOAD
= 1mA ● 65 120 µA
(Notes 6, 8)
I
LOAD
= 50mA ● 1.1 1.6 mA
I
LOAD
= 100mA ● 23 mA
I
LOAD
= 300mA ● 812 mA
Output Voltage Noise C
OUT
= 10µF, C
BYP
= 0.01µF, I
LOAD
= 300mA, BW = 10Hz to 100kHz 20 µV
RMS
ADJ Pin Bias Current (Notes 4, 9) 30 100 nA
Shutdown Threshold V
OUT
= Off to On ● 0.8 2 V
V
OUT
= On to Off ● 0.25 0.65 V
SHDN Pin Current V
SHDN
= 0V 0.01 0.5 µA
(Note 10) V
SHDN
= 20V 1 5 µA
Quiescent Current in Shutdown V
IN
= 6V, V
SHDN
= 0V 0.1 1 µA
Ripple Rejection V
IN
– V
OUT
= 1.5V (Avg), V
RIPPLE
= 0.5V
P-P
, f
RIPPLE
= 120Hz, 55 65 dB
I
LOAD
= 300mA
Current Limit V
IN
= 7V, V
OUT
= 0V 700 mA
V
IN
= V
OUT(NOMINAL)
+ 1V, ∆V
OUT
= –0.1V ● 320 mA
Input Reverse Leakage Current V
IN
= –20V, V
OUT
= 0V ● 1mA
Reverse Output Current LT1962-1.5 V
OUT
= 1.5V, V
IN
< 1.5V 10 20 µA
(Note 11) LT1962-1.8 V
OUT
= 1.8V, V
IN
< 1.8V 10 20 µA
LT1962-2.5 V
OUT
= 2.5V, V
IN
< 2.5V 10 20 µA
LT1962-3 V
OUT
= 3V, V
IN
< 3V 10 20 µA
LT1962-3.3 V
OUT
= 3.3V, V
IN
< 3.3V 10 20 µA
LT1962-5 V
OUT
= 5V, V
IN
< 5V 10 20 µA
LT1962 (Note 4) V
OUT
= 1.22V, V
IN
< 1.22V 5 10 µA
PARAMETER CONDITIONS MIN TYP MAX UNITS
The ● denotes specifications which apply over the full operating temperature range, otherwise specifications are T
A
= 25°C. (Note 3)
ELECTRICAL CHARACTERISTICS
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2: Absolute maximum input to output differential voltage cannot be
achieved with all combinations of rated IN pin and OUT pin voltages. With
the IN pin at 20V, the OUT pin may not be pulled below 0V. The total
measured voltage from in to out can not exceed ±20V.
Note 3: The LT1962 regulators are tested and specified under pulse load
conditions such that T
J
≈ T
A
. The LT1962 is 100% tested at T
A
= 25°C.
Performance at –40°C and 125°C is assured by design, characterization
and correlation with statistical process controls.
Note 4: The LT1962 (adjustable version) is tested and specified for these
conditions with the ADJ pin connected to the OUT pin.