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LT3071 Ver la hoja de datos (PDF) - Linear Technology

Número de pieza
componentes Descripción
Fabricante
LT3071
5A, Low Noise, Programmable Output, 85mV Dropout Linear Regulator with Analog Margining
Linear
Linear Technology Linear
LT3071 Datasheet PDF : 30 Pages
1 2 3 4 5 6 7 8 9 10 Next Last
TYPICAL PERFORMANCE CHARACTERISTICS
LT3071
EN Pin Thresholds
2.0
VBIAS = 2.5V
1.8
1.6
1.4
EN PIN RISING
1.2
1.0
EN PIN FALLING
0.8
0.6
0.4
0.2
0
–75 –50 –25 0 25 50 75 100 125 150 175
TEMPERATURE (°C)
3071 G19
Logic Input Threshold Voltages
Logic Hi-Z to High State Transitions
3.0
VBIAS = 3.3V
LOGIC Hi-Z TO HIGH THRESHOLD IS
2.9
RELATIVE TO VBIAS VOLTAGE
SEE APPLICATIONS INFORMATION
FOR MORE DETAILS
2.8
INPUT RISING
LOGIC Hi-Z TO HIGH
2.7
INPUT FALLING
LOGIC HIGH TO Hi-Z
2.6
2.5
–75 –50 –25 0 25 50 75 100 125 150 175
TEMPERATURE (°C)
3071 G22
Logic Pin Input Current,
Low State
40
VBIAS = 2.5V
35 VLOGIC = 0V
CURRENT FLOWS OUT OF THE PIN
30
25
20
15
10
5
0
–75 –50 –25 0 25 50 75 100 125 150 175
TEMPERATURE (°C)
3071 G25
EN Pin Threshold and Hysteresis
vs VBIAS
4.0
TJ = –55˚C TO 125°C
3.5
3.0
TYPICAL
2.5
HYSTERESIS
= 150mV
2.0
1.5
1.0
0.5
0
2
2.5
3
3.5
4
BIAS VOLTAGE (V)
3071 G20
VBIAS
MAX ENABLE
TYP ENABLE
TYP DISABLE
MIN DISABLE
EN Pin Logic High Current
6.0
VEN = VBIAS = 2.5V
5.5
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
–75 –50 –25 0 25 50 75 100 125 150 175
TEMPERATURE (°C)
3071 G23
SENSE Pin Current
65
VBIAS = 2.5V
60 VOUT = 0.8V
CURRENT FLOWS INTO SENSE
55
50
45
40
35
30
25
–75 –50 –25 0 25 50 75 100 125 150 175
TEMPERATURE (°C)
3071 G26
For more information www.linear.com/LT3071
Logic Input Threshold Voltages
Logic Low to Hi-Z State Transitions
0.8
SEE APPLICATIONS INFORMATION
FOR MORE DETAILS
0.7
INPUT RISING
LOGIC LOW TO Hi-Z
0.6
0.5
INPUT FALLING
LOGIC Hi-Z TO LOW
0.4
0.3
–75 –50 –25 0 25 50 75 100 125 150 175
TEMPERATURE (°C)
3071 G21
Logic Pin Input Current,
High State
40
VLOGIC = VBIAS = 2.5V
35 CURRENT FLOWS INTO THE PIN
30
25
20
15
10
5
0
–75 –50 –25 0 25 50 75 100 125 150 175
TEMPERATURE (°C)
3071 G24
SENSE Pin Current
400
VBIAS = 3.3V
375 VOUT = 1.8V
CURRENT FLOWS INTO SENSE
350
325
300
275
250
225
200
–75 –50 –25 0 25 50 75 100 125 150 175
TEMPERATURE (°C)
3071 G27
3071fc
7

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