參數(shù)資料
型號: PM6670TR
廠商: STMICROELECTRONICS
元件分類: 穩(wěn)壓器
英文描述: 1.4 A SWITCHING CONTROLLER, QCC24
封裝: 4 X 4 MM, LEAD FREE, VFQFN-24
文件頁數(shù): 5/55頁
文件大小: 849K
代理商: PM6670TR
PM6670
Typical operating characteristics
13/53
5
Typical operating characteristics
Figure 3.
Efficiency vs
load - 1.5V and 1.8V, VIN =12V
Figure 4.
Switching frequency vs
load - 1.8V, VIN = 12V
Figure 5.
Switching frequency vs
input voltage, 1.8V
Figure 6.
Switching frequency vs
input voltage, 1.5V
Figure 7.
VDDQ line regulation, 1.8V, 7A
Figure 8.
VDDQ line regulation, 1.8V, 7A
0
10
20
30
40
50
60
70
80
90
100
0.001
0.01
0.1
1
10
Output current (A)
E
ffi
c
ie
n
cy
(%
)
DDR2 - Forced PWM
DDR2 - No-Audible P-S
DDR2 - Pulse-Skip
DDR3 - Forced PWM
DDR3 - No-Audible P-S
DDR3 - Pulse-Skip
0
10
20
30
40
50
60
70
80
90
100
0.001
0.01
0.1
1
10
Output current (A)
E
ffi
c
ie
n
cy
(%
)
DDR2 - Forced PWM
DDR2 - No-Audible P-S
DDR2 - Pulse-Skip
DDR3 - Forced PWM
DDR3 - No-Audible P-S
DDR3 - Pulse-Skip
0
50
100
150
200
250
300
350
400
450
500
0.001
0.01
0.1
1
10
Output current (A)
S
w
ic
hi
ng
fr
eq
u
en
c
y(
kH
z)
Forced PWM
No-Audible P-S
Pulse-Skip
0
50
100
150
200
250
300
350
400
450
500
0.001
0.01
0.1
1
10
Output current (A)
S
w
ic
hi
ng
fr
eq
u
en
c
y(
kH
z)
Forced PWM
No-Audible P-S
Pulse-Skip
150
200
250
300
350
400
450
500
0.0
5.0
10.0
15.0
20.0
25.0
30.0
Input voltage (V)
S
w
it
ch
ing
f
re
q
u
en
cy
(k
Hz
)
150
200
250
300
350
400
450
500
0.0
5.0
10.0
15.0
20.0
25.0
30.0
Input voltage (V)
S
w
it
ch
ing
f
re
q
u
en
cy
(k
Hz
)
pg
150
200
250
300
350
400
450
500
0.0
5.0
10.0
15.0
20.0
25.0
30.0
Input voltage (V)
S
w
it
ch
in
g
f
req
u
en
cy
(k
H
z)
pg
150
200
250
300
350
400
450
500
0.0
5.0
10.0
15.0
20.0
25.0
30.0
Input voltage (V)
S
w
it
ch
in
g
f
req
u
en
cy
(k
H
z)
1.7940
1.7950
1.7960
1.7970
1.7980
1.7990
1.8000
0.0
5.0
10.0
15.0
20.0
25.0
30.0
Input voltage (V)
O
u
tp
u
tvo
lt
ag
e(
V
)
Forced PWM
No-Audible P-S
Pulse-Skip
1.7940
1.7950
1.7960
1.7970
1.7980
1.7990
1.8000
0.0
5.0
10.0
15.0
20.0
25.0
30.0
Input voltage (V)
O
u
tp
u
tvo
lt
ag
e(
V
)
Forced PWM
No-Audible P-S
Pulse-Skip
1.4940
1.4945
1.4950
1.4955
1.4960
1.4965
1.4970
1.4975
1.4980
0.0
5.0
10.0
15.0
20.0
25.0
30.0
Input voltage (V)
O
u
tp
u
tvo
lt
ag
e
(V
)
Forced PWM
No-Audible P-S
Pulse-Skip
1.4940
1.4945
1.4950
1.4955
1.4960
1.4965
1.4970
1.4975
1.4980
0.0
5.0
10.0
15.0
20.0
25.0
30.0
Input voltage (V)
O
u
tp
u
tvo
lt
ag
e
(V
)
Forced PWM
No-Audible P-S
Pulse-Skip
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