參數(shù)資料
型號(hào): LM2574HVN-ADJ
廠商: NATIONAL SEMICONDUCTOR CORP
元件分類: 穩(wěn)壓器
英文描述: SIMPLE SWITCHER⑩ 0.5A Step-Down Voltage Regulator
中文描述: 1.8 A SWITCHING REGULATOR, 63 kHz SWITCHING FREQ-MAX, PDIP8
封裝: DIP-8
文件頁(yè)數(shù): 5/24頁(yè)
文件大?。?/td> 397K
代理商: LM2574HVN-ADJ
LM2574
5
MOTOROLA ANALOG IC DEVICE DATA
Is
μ
IQ
Vo
TJ, JUNCTION TEMPERATURE (
°
C)
IO
TJ, JUNCTION TEMPERATURE (
°
C)
Vin, INPUT VOLTAGE (V)
Vin, INPUT VOLTAGE (V)
I
TJ, JUNCTION TEMPERATURE (
°
C)
Vo
Figure 2. Normalized Output Voltage
TJ, JUNCTION TEMPERATURE (
°
C)
Figure 3. Line Regulation
Vin = 20 V
ILoad = 100 mA
Normalized at TJ = 25
°
C
Figure 4. Dropout Voltage
Figure 5. Current Limit
Figure 6. Quiescent Current
Figure 7. Standby Quiescent Current
ILoad = 100 mA
TJ = 25
°
C
3.3 V, 5.0 V and ADJ
12 V and 15 V
Vin = 25 V
ILoad = 100 mA
ILoad = 500 A
Vin = 12 V
Vin = 40 V
L = 300
μ
H
ILoad = 500 mA
ILoad = 100 mA
Vout = 5.0 V
Measured at
Ground Pin
TJ = 25
°
C
VON/OFF = 5.0 V
TYPICAL PERFORMANCE CHARACTERISTICS
(Circuit of Figure 16)
1.0
0.8
0.6
0.4
0.2
0
–0.2
–0.4
–0.6
–0.8
–1.0
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
–0.2
–0.4
–0.6
2.0
1.5
1.0
0.5
0
1.4
1.3
1.2
1.1
1.0
0.9
0.8
0.7
20
18
16
14
12
10
8.0
6.0
4.0
200
180
160
140
120
100
80
60
40
20
0
125
100
75
60
25
0
–25
–50
40
35
30
25
20
15
10
5.0
0
125
100
75
60
25
0
–25
–50
125
100
75
60
25
0
–25
–50
40
35
30
25
20
15
10
5.0
0
125
100
75
60
25
0
–25
–50
相關(guān)PDF資料
PDF描述
LM2574M-ADJ SIMPLE SWITCHER⑩ 0.5A Step-Down Voltage Regulator
LM2574M-3.3 SIMPLE SWITCHER⑩ 0.5A Step-Down Voltage Regulator
LM2574M-15 Precision Chopper-Stabilized Operational Amplifier 8-PDIP
LM2574M-5.0 SIMPLE SWITCHER⑩ 0.5A Step-Down Voltage Regulator
LM2574N-3.3 SIMPLE SWITCHER⑩ 0.5A Step-Down Voltage Regulator
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LM2574HVN-ADJ 制造商:Texas Instruments 功能描述:IC SWITCHING REG ADJ 2574 DIP8
LM2574HVN-ADJ/NOPB 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 0.5A STEP-DOWN VLTG REG RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關(guān)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(fēng)格:SMD/SMT
LM2574HVN-ADJ-ND 制造商:National Semiconductor Corporation 功能描述:
LM2574M-12 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關(guān)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(fēng)格:SMD/SMT
LM2574M-12/NOPB 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關(guān)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(fēng)格:SMD/SMT