參數(shù)資料
型號: LT1501IS8-3.3
廠商: LINEAR TECHNOLOGY CORP
元件分類: 穩(wěn)壓器
英文描述: RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS
中文描述: 1.3 A SWITCHING REGULATOR, 500 kHz SWITCHING FREQ-MAX, PDSO8
封裝: 0.150 INCH, PLASTIC, SO-8
文件頁數(shù): 3/16頁
文件大小: 190K
代理商: LT1501IS8-3.3
3
LT1500/LT1501
ELECTRICAL CHARACTERISTICS
T
J
= 25
°
C, V
IN
= 2.3V unless otherwise noted.
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Internal Divider Current
LT1500-3.3/LT1501-3.3
LT1500-5/LT1501-5
G
G
22
33
30
45
μ
A
μ
A
Operating Quiescent Current
V
IN
5V, V
SHDN
= 2.3V (Note 1)
V
IN
= 15V
V
SHDN
0.2V, Fixed Voltages (Note 7)
T
J
0
°
C
T
J
< 0
°
C
G
G
200
280
320
μ
A
μ
A
Supply Current in Shutdown
G
8
15
20
μ
A
μ
A
Shutdown Pin Threshold
G
0.4
1.1
V
Shutdown Pin Input Current
V
SHDN
= 2.3V
G
3
10
μ
A
Input Start-Up Voltage
V
SHDN
= V
IN
T
J
0
°
C
T
J
< 0
°
C
G
2.0
2.1
2.2
V
V
Undervoltage Lockout
Light Load
Full Load
1.8
2.0
V
V
2.1
Power Switch
Switch On Resistance
I
SW
= 0.7A (Note 2)
G
0.50
0.72
Peak Switch Current (Note 3)
G
0.7
0.85
1.3
A
Switch Breakdown Voltage
I
SW
= 100
μ
A
G
30
45
V
Switch Leakage Current
V
SW
= 5V
V
SW
= 20V
G
G
0.2
0.3
5
10
μ
A
μ
A
Switch Turn-On Delay (Note 5)
800
ns
Switch Turn-Off Delay (Note 5)
400
ns
Current Sense Resistor
G
0.28
0.42
Low-Battery Comparator
Low-Battery Threshold
Falling Edge
G
1.20
1.24
1.28
V
Threshold Hysteresis
20
mV
LBI Input Bias Current
G
20
50
nA
LBO Output Low State
V
LBI
= 1.2V, I
SINK
= 100
μ
A
I
SINK
= 2mA
V
LBI
= 1.3V, V
LBO
15V
G
G
0.1
0.3
0.25
0.5
V
V
LBO Leakage Current
G
2
μ
A
LT1500 Functions
SYNC Pin Bias Current
V
SYNC
= 3.3V
G
15
35
μ
A
SYNC Pin Threshold
G
0.4
1.3
V
Error Amplifier Transconductance
600
μ
mho
V
C
Pin Source Current
20
μ
A
V
C
Pin High Clamp Voltage
1.20
1.26
1.32
V
NFB Reference Voltage
FB Pin Open
G
1.230
1.265
1.300
V
NFB Pin Bias Current
G
12
20
μ
A
NFB to FB Transconductance
Note 4
10,000
μ
mho
Soft Start Bias Current
Current Flows Out of Pin
G
2
4
7
μ
A
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