參數(shù)資料
型號: 1977IFE
廠商: Linear Technology Corporation
英文描述: High Voltage 1.5A, 500kHz Step-Down Switching Regulator with 100uA Quiescent Current
中文描述: 高電壓,500kHz降壓1.5安培的電流型開關穩(wěn)壓器的靜態(tài)電流為100uA
文件頁數(shù): 4/24頁
文件大?。?/td> 288K
代理商: 1977IFE
LT1977
4
1977f
TYPICAL PERFOR U
FB Voltage
Oscillator Frequency
SHDN Threshold
SHDN Pin Current
Shutdown Supply Current
Sleep Mode Supply Current
Bias Sleep Current
1.20
V
1.21
1.23
1.24
1.25
1.30
1.27
1.22
1.28
1.29
1.26
TEMPERATURE (
°
C)
–50
0
50
75
1977 G01
–25
25
100
125
TEMPERATURE (
°
C)
–50
450
F
460
480
490
500
550
520
0
50
75
1977 G02
470
530
540
510
–25
25
100
125
V
1.35
1977 G03
1.20
1.10
1.05
1.00
1.40
1.30
1.25
0.15
TEMPERATURE (
°
C)
–50
0
50
75
–25
25
100
125
SHDN VOLTAGE (V)
0
0
C
μ
A
1.5
2.5
3.5
10
20
30
40
1977 G04
50
4.5
5.5
1.0
2.0
3.0
4.0
5.0
60
T
J
= 25
°
C
C
μ
A
1977 G05
20
10
5
0
–50
25
15
TEMPERATURE (
°
C)
0
50
75
–25
25
100
125
V
IN
= 60V
V
IN
= 42V
V
IN
= 12V
C
μ
A
1977 G06
160
80
40
0
200
120
140
60
20
180
100
V
BIAS
= 0V
V
BIAS
= 5V
TEMPERATURE (
°
C)
–50
0
50
75
–25
25
100
125
C
μ
A
1977 G07
160
80
40
0
–50
200
120
140
60
20
180
100
TEMPERATURE (
°
C)
0
50
75
–25
25
100
125
PGFB Threshold
V
1977 G08
1.16
1.08
1.04
1.00
1.20
1.12
1.14
1.06
1.02
1.18
1.10
TEMPERATURE (
°
C)
–50
0
50
75
–25
25
100
125
PG Sink Current
C
μ
A
1977 G09
200
100
50
0
–50
250
150
TEMPERATURE (
°
C)
0
50
75
–25
25
100
125
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