TPS56C231
ZHCSNT8 –AUGUST 2022
www.ti.com.cn
6.6 典型特性(continued)
TJ = –40°C 至125°C，VIN = 12V（除非另有说明）
600
550
500
450
400
350
300
900
850
800
750
700
650
600
550
500
VIN=12V, VOUT=1.2V
VIN=12V, VOUT=3.3V
VIN=12V, VOUT=5V
VIN=12V, VOUT=1.2V
VIN=12V, VOUT=3.3V
VIN=12V, VOUT=5V
250
200
0
1
2
3
4
5
6
7
8
9
10 11 12
0
1
2
3
4
5
6
7
8
9
10 11 12
Output Current (A)
图6-31. fSW 负载调节，FCCM 模式，fSW = 400kHz
1300
Output Current (A)
图6-32. fSW 负载调节，FCCM 模式，fSW = 800kHz
500
VIN=12V, VOUT=1.2V
VIN=12V, VOUT=3.3V
VIN=12V, VOUT=5V
1200
1100
1000
900
400
300
200
100
0
VIN=12V, VOUT=1.2V
VIN=12V, VOUT=3.3V
VIN=12V, VOUT=5V
800
700
0
1
2
3
4
5
6
7
8
9
10 11 12
0.001
0.01
0.1
Output Current (A)
1
10 20
Output Current (A)
图6-33. fSW 负载调节，FCCM 模式，fSW = 1200kHz
1000
图6-34. fSW 负载调节，DCM 模式，fSW = 400kHz
1400
VIN=12V, VOUT=1.2V
VIN=12V, VOUT=3.3V
VIN=12V, VOUT=5V
VIN=12V, VOUT=1.2V
VIN=12V, VOUT=3.3V
VIN=12V, VOUT=5V
1200
1000
800
600
400
200
0
800
600
400
200
0
0.001
0.01
0.1
Output Current (A)
1
10 20
0.001
0.01
0.1
Output Current (A)
1
10 20
图6-35. fSW 负载调节，DCM 模式，fSW = 800kHz
图6-36. fSW 负载调节，DCM 模式，fSW = 1200kHz
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