L4976D 데이터 시트보기 (PDF) - STMicroelectronics
부품명
상세내역
제조사
L4976D Datasheet PDF : 17 Pages
| |||
Typical charcteristics
5
Typical charcteristics
L4976
Figure 4. Quiescent drain current vs.
input voltage
Iq
(mA)
5
200KHz
R1=22K
C2=1.2nF
D97IN724
100KHz
4
R1=20K
C2=2.7nF
3
0Hz
2
1
0
Tamb=25˚C
0% DC
5 10 15 20 25 30 35 40 45 50
Vcc(V)
Figure 5. Line regulation
VO
(V)
3.378
3.376
3.374
3.372
3.370
3.368
3.366
3.364
3.362
3.360
0
D97IN734
VCC=35V
Tj=25˚C
Tj=125˚C
0.2 0.4 0.6 0.8 1.0 1.2 1.4 IO(A)
Figure 6. Quiescent current vs. junction Figure 7. Switching frquency vs. R1 and
temperature
C2
Iq
(mA)
5
4
3
VCC=35V
2
0% DC
D97IN731
200KHz
R1=22K
C2=1.2nF
100KHz
R1=20K
C2=2.7nF
0Hz
fsw
(KHz)
500
200
100
50
20
10
D97IN784
Tamb=25˚C
0.82nF
1.2nF
2.2nF
3.3nF
4.7nF
5.6nF
1
-50 -30 -10 10 30 50 70 90 110 Tj(˚C)
5
0
20
40
60
80 R1(KΩ)
8/17
Share Link: 