LT1762 LINER [Linear Technology], LT1762 Datasheet - Page 3

• Manufacturer Part Number: LT1762
• Description: 150mA, Low Noise, LDO Micropower Regulators
• Manufacturer: LINER [Linear Technology]

ELECTRICAL CHARACTERISTICS
The
Dropout Voltage
V
(Notes 5, 6)
GND Pin Current
V
(Notes 5, 7)
Output Voltage Noise
ADJ Pin Bias Current
Shutdown Threshold
SHDN Pin Current
(Note 9)
Quiescent Current in Shutdown
Ripple Rejection
Current Limit
Input Reverse Leakage Current
Reverse Output Current
(Note 10)
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2: The LT1762 regulators are tested and specified under pulse load
conditions such that T
Performance at – 40 C and 125 C is assured by design, characterization
and correlation with statistical process controls.
Note 3: The LT1762 (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
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 LT1762
(adjustable version) is tested and specified for these conditions with an
PARAMETER
IN
IN
= V
= V
OUT(NOMINAL)
OUT(NOMINAL)
denotes specifications which apply over the full operating temperature range, otherwise specifications are T
J
T
A
. The LT1762 is 100% tested at 25 C.
I
I
I
I
I
I
I
I
I
I
I
I
I
C
(Notes 3, 8)
V
V
V
V
V
V
I
V
V
V
LT1762-2.5
LT1762-3
LT1762-3.3
LT1762-5
LT1762 (Note 3)
CONDITIONS
LOAD
LOAD
LOAD
LOAD
LOAD
LOAD
LOAD
LOAD
LOAD
LOAD
LOAD
LOAD
LOAD
LOAD
OUT
OUT
OUT
SHDN
SHDN
IN
IN
IN
IN
IN
= 6V, V
– V
= 7V, V
= V
= – 20V, V
= 10 F, C
= Off to On
= On to Off
= 1mA
= 1mA
= 10mA
= 10mA
= 50mA
= 50mA
= 150mA
= 150mA
= 0mA
= 1mA
= 10mA
= 50mA
= 150mA
= 150mA
= 0V
= 20V
OUT
OUT(NOMINAL)
SHDN
OUT
= 1.5V (Avg), V
OUT
BYP
= 0V
= 0V
= 0V
= 0.01 F, I
V
V
V
V
V
+ 1V, V
OUT
OUT
OUT
OUT
OUT
= 2.5V, V
= 3V, V
= 3.3V, V
= 5V, V
= 1.22V, V
RIPPLE
OUT
LOAD
IN
IN
= 0.5V
= – 0.1V
IN
IN
< 3V
< 5V
= 150mA, BW = 10Hz to 100kHz
IN
< 2.5V
< 3.3V
< 1.22V
P-P
, f
external resistor divider (two 250k resistors) for an output voltage of
2.44V. The external resistor divider will add a 5 A DC load on the output.
Note 6: Dropout voltage is the minimum input to output voltage differential
needed to maintain regulation at a specified output current. In dropout, the
output voltage will be equal to: V
Note 7: GND pin current is tested with V
source load. This means the device is tested while operating in its dropout
region. This is the worst-case GND pin current. The GND pin current will
decrease slightly at higher input voltages.
Note 8: ADJ pin bias current flows into the ADJ pin.
Note 9: SHDN pin current flows into the SHDN pin.
Note 10: Reverse output current is tested with the IN pin grounded and the
OUT pin forced to the rated output voltage. This current flows into the OUT
pin and out the GND pin.
RIPPLE
= 120Hz,
IN
0.25
– V
MIN
160
50
DROPOUT
IN
= V
LT1762 Series
0.09
0.15
0.21
0.27
0.65
OUT(NOMINAL)
350
300
TYP
1.3
0.8
0.1
0.1
.
25
70
20
30
65
10
10
10
10
4
1
5
A
= 25 C. (Note 2)
MAX
0.15
0.19
0.21
0.25
0.27
0.31
0.33
0.40
120
500
100
1.8
65
20
20
20
20
10
7
2
1
1
and a current
UNITS
V
3
RMS
mA
mA
mA
mA
mA
nA
dB
V
V
V
V
V
V
V
V
A
A
A
V
V
A
A
A
A
A
A
A
A