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LT3021 Datasheet(PDF) 3 Page - Linear Technology

No. de pieza LT3021
Descripción Electrónicos  500mA, Low Voltage, Very Low Dropout Linear Regulator
PDF  16 Pages
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Fabricante Electrónico  LINER [Linear Technology]
Página de inicio  http://www.linear.com
Logo LINER - Linear Technology

LT3021 Datasheet(HTML) 3 Page - Linear Technology

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LT3021/LT3021-1.2/
LT3021-1.5/LT3021-1.8
3021fa
Minimum Input Voltage
ILOAD = 500mA, TJ > 0°C
0.9
1.05
V
(Notes 5,14)
ILOAD = 500mA, TJ < 0°C
0.9
1.10
V
ADJ Pin Voltage (Notes 4, 5)
VIN = 1.5V, ILOAD = 1mA
196
200
204
mV
1.15V < VIN < 10V, 1mA < ILOAD < 500mA
●
193
200
206
mV
Regulated Output Voltage
LT3021-1.2
VIN = 1.5V, ILOAD = 1mA
1.176
1.200
1.224
V
(Note 4)
1.5V < VIN < 10V, 1mA < ILOAD < 500mA
●
1.157
1.200
1.236
V
LT3021-1.5
VIN = 1.8V, ILOAD = 1mA
1.470
1.500
1.530
V
1.8V < VIN < 10V, 1mA < ILOAD < 500mA
●
1.447
1.500
1.545
V
LT3021-1.8
VIN = 2.1V, ILOAD = 1mA
1.764
1.800
1.836
V
2.1V < VIN < 10V, 1mA < ILOAD < 500mA
●
1.737
1.800
1.854
V
Line Regulation (Note 6)
LT3021
∆VIN = 1.15V to 10V, ILOAD = 1mA
●
–1.75
0
+1.75
mV
LT3021-1.2
∆VIN = 1.5V to 10V, ILOAD = 1mA
●
–10.5
0
10.5
mV
LT3021-1.5
∆VIN = 1.8V to 10V, ILOAD = 1mA
●
–13
0
13
mV
LT3021-1.8
∆VIN = 2.1V to 10V, ILOAD = 1mA
●
–15.8
0
15.8
mV
Load Regulation (Note 6)
LT3021
VIN = 1.15V, ∆ILOAD = 1mA to 500mA
–2
0.4
2
mV
LT3021-1.2
VIN = 1.5V, ∆ILOAD = 1mA to 500mA
–6
1
6
mV
LT3021-1.5
VIN = 1.8V, ∆ILOAD = 1mA to 500mA
–7.5
1.5
7.5
mV
LT3021-1.8
VIN = 2.1V, ∆ILOAD = 1mA to 500mA
–9
2
9
mV
Dropout Voltage (Notes 7, 12)
ILOAD = 10mA
45
75
mV
ILOAD = 10mA
●
110
mV
ILOAD = 500mA
155
190
mV
ILOAD = 500mA
●
285
mV
GND Pin Current
ILOAD = 0mA
●
110
250
µA
VIN = VOUT(NOMINAL) + 0.4V
ILOAD = 10mA
920
µA
(Notes 8, 12)
ILOAD = 100mA
2.25
mA
ILOAD = 500mA
●
6.20
10
mA
Output Voltage Noise
COUT = 4.7µF, ILOAD = 500mA, BW = 10Hz to 100kHz, VOUT = 1.2V
300
µVRMS
ADJ Pin Bias Current
VADJ = 0.2V, VIN = 1.2V (Notes 6, 9)
20
50
nA
Shutdown Threshold
VOUT = Off to On
●
0.61
0.9
V
VOUT = On to Off
●
0.25
0.61
V
SHDN Pin Current (Note 10)
VSHDN = 0V, VIN = 10V
●
±1
µA
VSHDN = 10V, VIN = 10V
●
3
9.5
µA
Quiescent Current in Shutdown
VIN = 6V, VSHDN= 0V
3
9
µA
Ripple Rejection (Note 6)
LT3021
VIN – VOUT = 1V, VRIP = 0.5VP-P, fRIPPLE = 120Hz,
70
dB
ILOAD = 500mA
LT3021-1.2
VIN – VOUT = 1V, VRIPPLE = 0.5VP-P, fRIPPLE = 120Hz,
60
dB
ILOAD = 500mA
LT3021-1.5
VIN – VOUT = 1V, VRIPPLE = 0.5VP-P, fRIPPLE = 120Hz,
58
dB
ILOAD = 500mA
LT3021-1.8
VIN – VOUT = 1V, VRIPPLE = 0.5VP-P, fRIPPLE = 120Hz,
56
dB
ILOAD = 500mA
The
● denotes specifications which apply over the full operating temperature range, otherwise specifications are TJ = 25°C.
ELECTRICAL CHARACTERISTICS
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS



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