參數(shù)資料
型號: TPS51427ARHBR
廠商: TEXAS INSTRUMENTS INC
元件分類: 穩(wěn)壓器
英文描述: DUAL SWITCHING CONTROLLER, PQCC32
封裝: 5 X 5 MM, GREEN, PLASTIC, QFN-32
文件頁數(shù): 10/42頁
文件大?。?/td> 2131K
代理商: TPS51427ARHBR
0.001
0
10
1
20
h
E
ff
ic
ie
n
c
y
%
0.1
0.01
60
80
40
100
V
IN (V)
8
12
20
I
OUT – Output Current – A
CH1
PWM Mode
V
TONSEL = V5FILT
0.001
0
20
h
E
ff
ic
ie
n
c
y
%
60
80
40
100
I
OUT – Output Current – A
10
1
0.1
0.01
CH2
PWM Mode
V
TONSEL = V5FILT
V
IN (V)
8
12
20
Auto-skip, 8 A
OOA, 8 A
OOA, 0 A
PWM Only, 0 A
Auto-skip, 0A
OOA, 8 A
PWM Only, 8 A
5
5.03
25
20
V
IN – Input Voltage – V
5.04
5.10
5.12
5.14
V
O
U
T
O
u
tp
u
t
V
o
lt
a
g
e
V
15
10
5.08
5.11
5.06
5.05
5.07
5.09
5.13
5
3.20
25
20
V
IN – Input Voltage – V
3.22
3.24
3.28
3.32
3.34
3.38
3.40
3.42
V
O
U
T
O
u
tp
u
t
V
o
lt
a
g
e
V
15
10
Mode, I
OUT (A)
Auto-skip, 8 A
Auto-skip, 0A
OOA, 8 A
OOA, 0 A
PWM Only, 8A
PWM Only, 0A
Auto-skip, 8 A
Auto-skip, 0A
OOA, 8 A
OOA, 0 A
PWM Only, 8 A
3.30
3.36
3.26
SLUS843B – MAY 2008 – REVISED SEPTEMBER 2008 .................................................................................................................................................. www.ti.com
TYPICAL CHARACTERISTICS (continued)
EFFICIENCY
vs
OUTPUT CURRENT
Figure 5. 5-V Efficiency in PWM Mode
Figure 6. 3.3-V Efficiency in PWM Mode
OUTPUT VOLTAGE
vs
INPUT VOLTAGE
Figure 7. 5-V Line Regulation
Figure 8. 3.3-V Line Regulation
18
Copyright 2008, Texas Instruments Incorporated
Product Folder Link(s): TPS51427A
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