LT1764EQ-1.8(RevA) View Datasheet(PDF) - Linear Technology
Part Name
Description
Manufacturer
LT1764EQ-1.8 Datasheet PDF : 16 Pages
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TYPICAL PERFOR A CE CHARACTERISTICS
SHDN Pin Threshold
(On-to-Off)
1.0
IL = 1mA
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
1764 G22
SHDN Pin Input Current
10
VSHDN = 20V
9
8
7
6
5
4
3
2
1
0
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
1764 G25
Current Limit
6
5
VIN = 7V
VOUT = 0V
4
3
2
1
0
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
1764 G28
SHDN Pin Threshold
(Off-to-On)
1.0
0.9
0.8
IL = 3A
0.7
0.6
0.5
IL = 1mA
0.4
0.3
0.2
0.1
0
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
1764 G23
ADJ Pin Bias Current
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
– 50 – 25
0 25 50 75
TEMPERATURE (°C)
100 125
1756 G26
Reverse Output Current
5.0
4.5
LT1764
4.0
LT1764-1.8
3.5
LT1764-2.5
3.0
LT1764-3.3
2.5
2.0
TJ = 25°C
VIN = 0V
1.5
CURRENT FLOWS
1.0
INTO OUTPUT PIN
VOUT = VADJ (LT1764)
0.5
VOUT = VFB
(LT1764-1.8/-2.5/-3.3)
0
0 1 2 3 4 5 6 7 8 9 10
OUTPUT VOLTAGE (V)
1764 G29
LT1764 Series
SHDN Pin Input Current
10
9
8
7
6
5
4
3
2
1
0
0 2 4 6 8 10 12 14 16 18 20
SHDN PIN VOLTAGE (V)
1764 G24
Current Limit
6
5
TJ = –50°C
4
3
TJ = 125°C
TJ = 25°C
2
1
0
0 2 4 6 8 10 12 14 16 18 20
INPUT/OUTPUT DIFFERENTIAL (V)
1764 G27
Reverse Output Current
1.0
VIN = 0V
0.9 VOUT = 1.21V (LT1764)
0.8
VOUT = 1.8V (LT1764-1.8)
VOUT = 2.5V (LT1764-2.5)
0.7 VOUT = 3.3V (LT1764-3.3)
0.6
LT1764-1.8/-2.5/-3.3
0.5
0.4
0.3
LT1764
0.2
0.1
0
–50 –25
0 25 50 75 100 125
TEMPERATURE (°C)
1764 G30
1764fa
7
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