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參數(shù)資料
| 型號： | LM2575T-12EP |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 3.2 A SWITCHING REGULATOR, 63 kHz SWITCHING FREQ-MAX, SFM5 |
| 封裝： | TO-220, 5 PIN |
| 文件頁數(shù)： | 24/26頁 |
| 文件大?。?/td> | 1069K |
| 代理商： | LM2575T-12EP |
LM2575-ADJEP, LM2575HV-ADJEP
Electrical Characteristics (Note 16)
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
LM2575-ADJEP
Units
(Limits)
LM2575HV-ADJEP
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
LM2575EP
8V
≤ V
IN
≤ 40V
1.193/1.180
V(Min)
V
OUT = 5V, Circuit of Figure 2
1.267/1.280
V(Max)
V
OUT
Feedback Voltage
0.2A
≤ I
LOAD
≤ 1A,
1.230
V
LM2575HVEP
8V
≤ V
IN
≤ 60V
1.193/1.180
V(Min)
V
OUT = 5V, Circuit of Figure 2
1.273/1.286
V(Max)
η
Efficiency
V
IN = 12V, ILOAD = 1A, VOUT =5V
77
%
All Output Voltage Versions
Electrical Characteristics (Note 16)
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
LM2575-XXEP
Units
(Limits)
LM2575HV-XXEP
Limit
DEVICE PARAMETERS
I
b
Feedback Bias Current
V
OUT = 5V (Adjustable Version Only)
50
100/500
nA
f
O
Oscillator Frequency
52
kHz
47/42
kHz(Min)
58/63
kHz(Max)
V
SAT
Saturation Voltage
I
OUT = 1A (Note 7)
0.9
V
1.2/1.4
V(Max)
DC
Max Duty Cycle (ON)
98
%
93
%(Min)
I
CL
Current Limit
Peak Current (Notes 7, 15)
2.2
A
1.7/1.3
A(Min)
3.0/3.2
A(Max)
I
L
Output Leakage
(Notes 9, 10)
Output = 0V
2
mA(Max)
Current
Output = 1V
7.5
mA
Output = 1V
30
mA(Max)
I
Q
Quiescent Current
5
mA
10
mA(Max)
I
STBY
Standby Quiescent
ON /OFF Pin = 5V (OFF)
50
A
Current
200
A(Max)
LM2575EP/LM2575HVEP
www.national.com
7
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| LM2575T-12G | 功能描述:直流/直流開關調節(jié)器 12V 1A Buck PWM RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
| LM2575T-12-H | 制造商:SEMTECH 制造商全稱:Semtech Corporation 功能描述:Voltage-Mode SMPS Controller |
| LM2575T12P | 制造商:NATIONAL 功能描述:* |
| LM2575T-12-V | 制造商:SEMTECH 制造商全稱:Semtech Corporation 功能描述:Voltage-Mode SMPS Controller |
| LM2575T-15 | 功能描述:直流/直流開關轉換器 RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風格:SMD/SMT |
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