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LM25574MT データシート(PDF) 6 Page - Texas Instruments

部品番号 LM25574MT
部品情報  LM25574/LM25574-Q1 SIMPLE SWITCHER 42V, 0.5A Step-Down Switching Regulator
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メーカー  TI [Texas Instruments]
ホームページ  http://www.ti.com
Logo TI - Texas Instruments

LM25574MT データシート(HTML) 6 Page - Texas Instruments

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background image
0
2
4
6
8
10
0
2
4
6
8
10
VIN (V)
Ramp Up
Ramp Down
10k
100k
1M
10M
100M
FREQUENCY (Hz)
-30
-20
-10
0
10
20
30
40
50
-135
-90
-45
0
45
90
135
180
225
GAIN
PHASE
TEMPERATURE (
oC)
-50
-25
0
25
50
75
100
125
0.90
0.95
1.00
1.05
1.10
0
4
16
20
24
ICC (mA)
0
2
4
6
8
8
12
TEMPERATURE (
oC)
-50
-25
0
25
50
75
100
125
0.990
0.995
1.000
1.005
1.010
RT (k:)
1
10
100
1000
10
100
1000
LM25574, LM25574-Q1
SNVS483G – JANUARY 2007 – REVISED APRIL 2013
www.ti.com
Typical Performance Characteristics
Oscillator Frequency vs Temperature
Oscillator Frequency vs RT
FOSC = 200kHz
Figure 2.
Figure 3.
VCC vs ICC
Soft Start Current vs Temperature
VIN = 12V
Figure 4.
Figure 5.
VCC vs VIN
Error Amplifier Gain/Phase
RL = 7kΩ
AVCL = 101
Figure 6.
Figure 7.
6
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Copyright © 2007–2013, Texas Instruments Incorporated
Product Folder Links: LM25574 LM25574-Q1


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