3021 Ver la hoja de datos (PDF) - Linear Technology
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3021 Datasheet PDF : 16 Pages
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LT3021/LT3021-1.2/
LT3021-1.5/LT3021-1.8
ELECTRICAL CHARACTERISTICS
The ● denotes specifications which apply over the full operating temperature range, otherwise specifications are TJ = 25°C.
PARAMETER
CONDITIONS
MIN TYP MAX
Minimum Input Voltage
(Notes 5,14)
ADJ Pin Voltage (Notes 4, 5)
Regulated Output Voltage
(Note 4)
Line Regulation (Note 6)
Load Regulation (Note 6)
Dropout Voltage (Notes 7, 12)
GND Pin Current
VIN = VOUT(NOMINAL) + 0.4V
(Notes 8, 12)
Output Voltage Noise
ADJ Pin Bias Current
Shutdown Threshold
SHDN Pin Current (Note 10)
Quiescent Current in Shutdown
Ripple Rejection (Note 6)
ILOAD = 500mA, TJ > 0°C
ILOAD = 500mA, TJ < 0°C
VIN = 1.5V, ILOAD = 1mA
1.15V < VIN < 10V, 1mA < ILOAD < 500mA
LT3021-1.2
VIN = 1.5V, ILOAD = 1mA
1.5V < VIN < 10V, 1mA < ILOAD < 500mA
LT3021-1.5
VIN = 1.8V, ILOAD = 1mA
1.8V < VIN < 10V, 1mA < ILOAD < 500mA
LT3021-1.8
VIN = 2.1V, ILOAD = 1mA
2.1V < VIN < 10V, 1mA < ILOAD < 500mA
LT3021
LT3021-1.2
LT3021-1.5
LT3021-1.8
∆VIN = 1.15V to 10V, ILOAD = 1mA
∆VIN = 1.5V to 10V, ILOAD = 1mA
∆VIN = 1.8V to 10V, ILOAD = 1mA
∆VIN = 2.1V to 10V, ILOAD = 1mA
LT3021
LT3021-1.2
LT3021-1.5
LT3021-1.8
VIN = 1.15V, ∆ILOAD = 1mA to 500mA
VIN = 1.5V, ∆ILOAD = 1mA to 500mA
VIN = 1.8V, ∆ILOAD = 1mA to 500mA
VIN = 2.1V, ∆ILOAD = 1mA to 500mA
ILOAD = 10mA
ILOAD = 10mA
ILOAD = 500mA
ILOAD = 500mA
ILOAD = 0mA
ILOAD = 10mA
ILOAD = 100mA
ILOAD = 500mA
COUT = 4.7µF, ILOAD = 500mA, BW = 10Hz to 100kHz, VOUT = 1.2V
VADJ = 0.2V, VIN = 1.2V (Notes 6, 9)
VOUT = Off to On
VOUT = On to Off
VSHDN = 0V, VIN = 10V
VSHDN = 10V, VIN = 10V
VIN = 6V, VSHDN= 0V
LT3021
VIN – VOUT = 1V, VRIP = 0.5VP-P, fRIPPLE = 120Hz,
ILOAD = 500mA
LT3021-1.2
VIN – VOUT = 1V, VRIPPLE = 0.5VP-P, fRIPPLE = 120Hz,
ILOAD = 500mA
LT3021-1.5
VIN – VOUT = 1V, VRIPPLE = 0.5VP-P, fRIPPLE = 120Hz,
ILOAD = 500mA
LT3021-1.8
VIN – VOUT = 1V, VRIPPLE = 0.5VP-P, fRIPPLE = 120Hz,
ILOAD = 500mA
196
● 193
1.176
● 1.157
1.470
● 1.447
1.764
● 1.737
● –1.75
● –10.5
● –13
● –15.8
–2
–6
–7.5
–9
●
●
●
●
●
● 0.25
●
●
0.9
0.9
200
200
1.200
1.200
1.500
1.500
1.800
1.800
0
0
0
0
0.4
1
1.5
2
45
155
110
920
2.25
6.20
300
20
0.61
0.61
3
3
70
1.05
1.10
204
206
1.224
1.236
1.530
1.545
1.836
1.854
+1.75
10.5
13
15.8
2
6
7.5
9
75
110
190
285
250
10
50
0.9
±1
9.5
9
60
58
56
UNITS
V
V
mV
mV
V
V
V
V
V
V
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
µA
µA
mA
mA
µVRMS
nA
V
V
µA
µA
µA
dB
dB
dB
dB
3021fa
3
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