Datasheet

3
LT1763 Series
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Load Regulation LT1763-3 V
IN
= 4V, ∆I
LOAD
= 1mA to 500mA 7 15 mV
V
IN
= 4V, ∆I
LOAD
= 1mA to 500mA ● 30 mV
LT1763-3.3 V
IN
= 4.3V, ∆I
LOAD
= 1mA to 500mA 7 17 mV
V
IN
= 4.3V, ∆I
LOAD
= 1mA to 500mA ● 33 mV
LT1763-5 V
IN
= 6V, ∆I
LOAD
= 1mA to 500mA 12 25 mV
V
IN
= 6V, ∆I
LOAD
= 1mA to 500mA ● 50 mV
LT1763 (Note 3) V
IN
= 2.3V, ∆I
LOAD
= 1mA to 500mA 2 6 mV
V
IN
= 2.3V, ∆I
LOAD
= 1mA to 500mA ● 12 mV
Dropout Voltage I
LOAD
= 10mA 0.13 0.19 V
V
IN
= V
OUT(NOMINAL)
I
LOAD
= 10mA ● 0.25 V
(Notes 5, 6, 11) I
LOAD
= 50mA 0.17 0.22 V
I
LOAD
= 50mA ● 0.32 V
I
LOAD
= 100mA 0.20 0.24 V
I
LOAD
= 100mA ● 0.34 V
I
LOAD
= 500mA 0.30 0.35 V
I
LOAD
= 500mA ● 0.45 V
GND Pin Current I
LOAD
= 0mA ● 30 75 µA
V
IN
= V
OUT(NOMINAL)
I
LOAD
= 1mA ● 65 120 µA
(Notes 5, 7) I
LOAD
= 50mA ● 1.1 1.6 mA
I
LOAD
= 100mA ● 23 mA
I
LOAD
= 250mA ● 58 mA
I
LOAD
= 500mA ● 11 16 mA
Output Voltage Noise C
OUT
= 10µF, C
BYP
= 0.01µF, I
LOAD
= 500mA, BW = 10Hz to 100kHz 20 µV
RMS
ADJ Pin Bias Current (Notes 3, 8) 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 0.1 µA
(Note 9) V
SHDN
= 20V 1 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, 50 65 dB
I
LOAD
= 500mA
Current Limit V
IN
= 7V, V
OUT
= 0V 700 mA
V
IN
= V
OUT(NOMINAL)
+ 1V, ∆V
OUT
= –0.1V ● 520 mA
Input Reverse Leakage Current V
IN
= –20V, V
OUT
= 0V ● 1mA
Reverse Output Current LT1763-1.5 V
OUT
= 1.5V, V
IN
< 1.5V 10 20 µA
(Note 10) LT1763-1.8 V
OUT
= 1.8V, V
IN
< 1.8V 10 20 µA
LT1763-2.5 V
OUT
= 2.5V, V
IN
< 2.5V 10 20 µA
LT1763-3 V
OUT
= 3V, V
IN
< 3V 10 20 µA
LT1763-3.3 V
OUT
= 3.3V, V
IN
< 3.3V 10 20 µA
LT1763-5 V
OUT
= 5V, V
IN
< 5V 10 20 µA
LT1763 (Note 3) V
OUT
= 1.22V, V
IN
< 1.22V 5 10 µA
ELECTRICAL CHARACTERISTICS
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 2)
all possible combinations of input voltage and output current. When
operating at maximum input voltage, the output current range must be
limited. When operating at maximum output current, the input voltage
range must be limited.
Note 5: To satisfy requirements for minimum input voltage, the LT1763
(adjustable version) is tested and specified for these conditions with an
external resistor divider (two 250k resistors) for an output voltage of
2.44V. The external resistor divider will add a 5µA DC load on the output.
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2: The LT1763 regulators are tested and specified under pulse load
conditions such that T
J
≈ T
A
. The LT1763 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 3: The LT1763 (adjustable version) is tested and specified for these
conditions with the ADJ pin connected to the OUT pin.
Note 4: Operating conditions are limited by maximum junction
temperature. The regulated output voltage specification will not apply for