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參數(shù)資料
| 型號： | LM1575J-12/883 |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 3 A SWITCHING REGULATOR, 58 kHz SWITCHING FREQ-MAX, CDIP16 |
| 封裝： | CERAMIC, DIP-16 |
| 文件頁數(shù)： | 25/27頁 |
| 文件大?。?/td> | 725K |
| 代理商： | LM1575J-12/883 |
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LM1575-ADJ, LM2575-ADJ, LM2575HV-ADJ
Electrical Characteristics
Specifications with standard type face are for T
J= 25C, and those with boldface type apply over full Operating Temperature
Range.
Symbol
Parameter
Conditions
Typ
LM1575-ADJ
LM2575-ADJ
Units
(Limits)
LM2575HV-ADJ
Limit
V
OUT
Feedback Voltage
V
IN = 12V, ILOAD = 0.2A
1.230
V
OUT = 5V
1.217
V(Min)
Circuit of Figure 2
1.243
V(Max)
V
OUT
Feedback Voltage
0.2A
≤ I
LOAD
≤ 1A,
1.230
V
LM1575/LM2575
8V
≤ V
IN
≤ 40V
1.205/1.193
1.193/1.180
V(Min)
V
OUT = 5V, Circuit of Figure 2
1.255/1.267
1.267/1.280
V(Max)
V
OUT
Feedback Voltage
0.2A
≤ I
LOAD
≤ 1A,
1.230
V
LM2575HV
8V
≤ V
IN
≤ 60V
1.205/1.193
1.193/1.180
V(Min)
V
OUT = 5V, Circuit of Figure 2
1.261/1.273
1.273/1.286
V(Max)
η
Efficiency
V
IN = 12V, ILOAD = 1A, VOUT =5V
77
%
All Output Voltage Versions
Electrical Characteristics
Specifications with standard type face are for T
J = 25C, and those with boldface type apply over full Operating Tempera-
ture Range. Unless otherwise specified, V
IN = 12V for the 3.3V, 5V, and Adjustable version, VIN = 25V for the 12V version,
and V
IN = 30V for the 15V version. ILOAD = 200 mA.
Symbol
Parameter
Conditions
Typ
LM1575-XX
LM2575-XX
Units
(Limits)
LM2575HV-XX
Limit
DEVICE PARAMETERS
I
b
Feedback Bias Current
V
OUT = 5V (Adjustable Version Only)
50
100/500
nA
f
O
Oscillator Frequency
52
kHz
47/43
47/42
kHz(Min)
58/62
58/63
kHz(Max)
V
SAT
Saturation Voltage
I
OUT = 1A (Note 5)
0.9
V
1.2/1.4
V(Max)
DC
Max Duty Cycle (ON)
98
%
93
%(Min)
I
CL
Current Limit
Peak Current (Notes 5, 13)
2.2
A
1.7/1.3
A(Min)
3.0/3.2
A(Max)
I
L
Output Leakage
(Notes 7, 8)
Output = 0V
2
mA(Max)
Current
Output = 1V
7.5
mA
Output = 1V
30
mA(Max)
I
Q
Quiescent Current
5
mA
10/12
10
mA(Max)
I
STBY
Standby Quiescent
ON /OFF Pin = 5V (OFF)
50
A
Current
200/500
200
A(Max)
LM1575/LM2575/LM2575HV
www.national.com
7
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PDF描述 |
|---|---|
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| LM1575K-15-QML | 3 A SWITCHING REGULATOR, 58 kHz SWITCHING FREQ-MAX, MBFM2 |
| LM185BWG/883 | 1-OUTPUT TWO TERM VOLTAGE REFERENCE, 1.24 V, CDSO10 |
| 5962-9091402QYA | 1-OUTPUT TWO TERM VOLTAGE REFERENCE, 1.24 V, CDSO10 |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| LM1575J-12-QML | 制造商:Texas Instruments 功能描述: |
| LM1575J-15-QML | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:SIMPLE SWITCHER㈢ 1A Step-Down Voltage Regulator |
| LM1575J-3.3-QML | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:SIMPLE SWITCHER㈢ 1A Step-Down Voltage Regulator |
| LM1575J-5.0-QML | 制造商:Texas Instruments 功能描述:Conv DC-DC Single Step Down 4V to 40V 16-Pin CDIP |
| LM1575J-ADJ-QML | 制造商:Texas Instruments 功能描述:Conv DC-DC Single Step Down 4V to 40V 16-Pin CDIP |
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