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LT1762 Datasheet(PDF) 3 Page - Linear Technology

Part No. LT1762
Description  150mA, Low Noise, LDO Micropower Regulators
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Maker  LINER [Linear Technology]
Homepage  http://www.linear.com
Logo LINER - Linear Technology

LT1762 Datasheet(HTML) 3 Page - Linear Technology

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3
LT1762 Series
ELECTRICAL CHARACTERISTICS
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
The q denotes specifications which apply over the full operating temperature range, otherwise specifications are TA = 25°C. (Note 2)
Dropout Voltage
ILOAD = 1mA
0.09
0.15
V
VIN = VOUT(NOMINAL)
ILOAD = 1mA
q
0.19
V
(Notes 5, 6)
ILOAD = 10mA
0.15
0.21
V
ILOAD = 10mA
q
0.25
V
ILOAD = 50mA
0.21
0.27
V
ILOAD = 50mA
q
0.31
V
ILOAD = 150mA
0.27
0.33
V
ILOAD = 150mA
q
0.40
V
GND Pin Current
ILOAD = 0mA
q
25
65
µA
VIN = VOUT(NOMINAL)
ILOAD = 1mA
q
70
120
µA
(Notes 5, 7)
ILOAD = 10mA
q
350
500
µA
ILOAD = 50mA
q
1.3
1.8
mA
ILOAD = 150mA
q
47
mA
Output Voltage Noise
COUT = 10µF, CBYP = 0.01µF, ILOAD = 150mA, BW = 10Hz to 100kHz
20
µVRMS
ADJ Pin Bias Current
(Notes 3, 8)
30
100
nA
Shutdown Threshold
VOUT = Off to On
q
0.8
2
V
VOUT = On to Off
q
0.25
0.65
V
SHDN Pin Current
VSHDN = 0V
0.1
µA
(Note 9)
VSHDN = 20V
1
µA
Quiescent Current in Shutdown
VIN = 6V, VSHDN = 0V
0.1
1
µA
Ripple Rejection
VIN – VOUT = 1.5V (Avg), VRIPPLE = 0.5VP-P, fRIPPLE = 120Hz,
50
65
dB
ILOAD = 150mA
Current Limit
VIN = 7V, VOUT = 0V
300
mA
VIN = VOUT(NOMINAL) + 1V, ∆VOUT = – 0.1V
q
160
mA
Input Reverse Leakage Current
VIN = – 20V, VOUT = 0V
q
1mA
Reverse Output Current
LT1762-2.5
VOUT = 2.5V, VIN < 2.5V
10
20
µA
(Note 10)
LT1762-3
VOUT = 3V, VIN < 3V
10
20
µA
LT1762-3.3
VOUT = 3.3V, VIN < 3.3V
10
20
µA
LT1762-5
VOUT = 5V, VIN < 5V
10
20
µA
LT1762 (Note 3)
VOUT = 1.22V, VIN < 1.22V
5
10
µA
external resistor divider (two 250k resistors) for an output voltage of
2.44V. The external resistor divider will add a 5
µA 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: VIN – VDROPOUT.
Note 7: GND pin current is tested with VIN = VOUT(NOMINAL) and a current
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.
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 TJ ≈ TA. The LT1762 is 100% tested at 25°C.
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


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