LT1764A LINER [Linear Technology], LT1764A Datasheet - Page 3

• Manufacturer Part Number: LT1764A
• Description: 1.1A, Low Noise, Low Dropout Linear Regulator
• Manufacturer: LINER [Linear Technology]

ELECTRICAL CHARACTERISTICS
temperature range, otherwise specifi cations are at T
PARAMETER
Minimum Input Voltage (Notes 4, 12)
ADJ Pin Voltage (Notes 4, 5)
Line Regulation (Note 4)
Load Regulation
Dropout Voltage
V
(Notes 6, 7, 12)
GND Pin Current
V
(Notes 6, 8)
Output Voltage Noise
ADJ Pin Bias Current (Notes 4, 9)
Shutdown Threshold
⎯ S ⎯ H ⎯ D ⎯ N Pin Current (Note 10)
Quiescent Current in Shutdown
Ripple Rejection
Current Limit
Input Reverse Leakage Current
Reverse Output Current (Note 11)
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2: Absolute maximum input to output differential voltage is not
achievable with all combinations of rated IN pin and OUT pin voltages.
With the IN pin at 22V, the OUT pin may not be pulled below 0V. The total
measured voltage from IN to OUT must not exceed ±22V.
Note 3: The LT1965 is tested and specifi ed under pulse load conditions
such that T
at –40°C and 125°C is assured by design, characterization, and correlation
with statistical process controls. The LT1965I is guaranteed over the full
–40°C to 125°C operating junction temperature range.
Note 4: The LT1965 is tested and specifi ed for these conditions with the
ADJ connected to the OUT pin.
IN
IN
= V
= V
OUT(NOMINAL)
OUT(NOMINAL)
J
≅ T
A
. The LT1965E is 100% tested at T
+ 1V
CONDITIONS
I
I
V
2.3V < V
ΔV
V
V
I
I
I
I
I
I
I
I
I
I
I
I
I
C
V
V
V
V
V
V
f
V
V
V
V
LOAD
LOAD
LOAD
LOAD
LOAD
LOAD
LOAD
LOAD
LOAD
LOAD
LOAD
LOAD
LOAD
LOAD
LOAD
RIPPLE
IN
IN
IN
OUT
OUT
OUT
⎯ S ⎯ H ⎯ D ⎯ N
⎯ S ⎯ H ⎯ D ⎯ N
IN
IN
IN
IN
IN
OUT
IN
= 2.1V, I
= 2.3V, ΔI
= 2.3V, ΔI
= 6V, V
– V
= 7V, V
= V
= –20V, V
A
= 2.1V to 20V, I
= 10μF, I
= Off to On
= On to Off
= 1.2V, V
= 0.5A
= 1.1A
= 1mA
= 1mA
= 100mA
= 100mA
= 500mA
= 500mA
= 1.1A
= 1.1A
= 0mA
= 1mA
= 100mA
= 500mA
= 1.1A
= 25°C. Performance
= 0V
= 20V
OUT
OUT(NOMINAL)
= 120Hz, I
IN
⎯ S ⎯ H ⎯ D ⎯ N
OUT
< 20V, 1mA < I
= 1.5V (AVG), V
LOAD
A
OUT
LOAD
LOAD
LOAD
IN
= 0
= 25°C. (Note 3)
= 0V
< 1.2V (Note 4)
= 1mA
LOAD
= 0
= 1mA to 1.1A
= 1mA to 1.1A
= 1.1A, BW = 10Hz to 100kHz
+ 1V, ΔV
The
LOAD
= 0.75A
LOAD
●
= 1mA
RIPPLE
denotes the specifi cations which apply over the full operating
OUT
< 1.1A
= -0.1V (Note 6)
Note 5: Maximum junction temperature limits operating conditions. The
regulated output voltage specifi cation does not apply for all possible
combinations of input voltage and output current. Limit the output current
range if operating at the maximum input voltage. Limit the input-to-output
voltage differential if operating at the maximum output current.
Note 6: To satisfy minimum input voltage requirements, the LT1965 is
tested and specifi ed for these conditions with an external resistor divider
(bottom 4.02k, top 4.32k) for an output voltage of 2.5V. The external
resistor divider adds 300μA of output DC load current.
Note 7: Dropout voltage is the minimum input-to-output voltage
differential needed to maintain regulation at a specifi ed output current. In
dropout, the output voltage equals: (V
Note 8: GND pin current is tested with V
current source load. GND pin current increases slightly in dropout. See
GND pin current curves in the Typical Performance Characteristics section.
= 0.5V
P-P
,
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
1.182
1.164
MIN
0.2
1.2
57
IN
– V
IN
= V
DROPOUT
OUT(NOMINAL)
1.65
1.20
1.20
4.25
0.05
0.10
0.19
0.29
0.85
0.45
0.01
0.01
TYP
175
1.8
0.5
0.6
2.2
8.2
1.3
5.5
21
40
75
3
2
)
LT1965
1.218
1.236
0.175
MAX
0.08
0.14
0.28
0.25
0.36
0.36
0.49
400
2.3
1.1
1.5
5.5
4.5
16
20
40
10
8
8
2
1
1
1
+ 1V and a
μV
UNITS
3
1965f
RMS
mV
mV
mV
mA
mA
mA
mA
mA
mA
μA
μA
μA
μA
dB
μA
V
V
V
V
V
V
V
V
V
V
V
V
V
V
A
A