参数资料
型号: TPS65148RHBR
厂商: TEXAS INSTRUMENTS INC
元件分类: 电源管理
英文描述: 1-CHANNEL POWER SUPPLY SUPPORT CKT, PQCC32
封装: 5 X 5 MM, GREEN, PLASTIC, QFN-32
文件页数: 29/30页
文件大小: 947K
代理商: TPS65148RHBR
V SW
10 V/div
V S_AC
50 mV/div
I L
500 mA/div
VIN =5V
VS =13.6V/2mA
1 s/div
f =630kHz
V SW
10 V/div
V S_AC
50 mV/div
I L
1 A/div
V
IN
=5V
VS =13.6V/500mA
1 s/div
f =630kHz
0
200
400
600
800
1000
1200
1400
1600
0
0.2
0.4
0.6
0.8
1
I
-Loadcurrent-[A]
OUT
V
IN =5V
V
S =13.6V
FREQ =V
IN
L =4.7 H
FREQ =GND
L =10 H
f
-
fr
e
q
u
e
n
c
y
-
[k
H
z
]
0
200
400
600
800
1000
1200
1400
2.5
3.0
3.5
4.0
4.5
5.0
5.5
6.0
V -Supplyvoltage-[V]
IN
f
-
fr
e
q
u
e
n
c
y
-
[k
H
z
]
V
S =13.6V/100mA
FREQ =V
IN
L =4.7 H
FREQ =GND
L = 10 H
I
OUT =50mA – 400mA
C
OUT =40 F
L =4.7 H
R
COMP =47 k
C
COMP =3.3nF
V
S_AC
200 mV/div
I
OUT
200 mA/div
V
IN =5V
V
S =13.6V
200 s/div
I
OUT =50mA – 400mA
C
OUT =40 F
L =10 H
R
COMP =47 k
C
COMP =3.3nF
V
IN =5V
V
S =13.6V
V
S_AC
200 mV/div
I
OUT
200 mA/div
200 s/div
SLVS904A – MAY 2009 – REVISED JANUARY 2011
www.ti.com
BOOST CONVERTER PWM SWITCHING
DISCONTINUOUS CONDUCTION MODE
CONTINUOUS CONDUCTION MODE
Figure 3.
Figure 4.
BOOST CONVERTER FREQUENCY
vs
LOAD CURRENT
SUPPLY VOLTAGE
Figure 5.
Figure 6.
LOAD TRANSIENT RESPONSE
BOOST CONVERTER - HIGH FREQUENCY (1.2 MHz)
BOOST CONVERTER - LOW FREQUENCY (630 kHz)
Figure 7.
Figure 8.
8
Copyright 2009–2011, Texas Instruments Incorporated
Product Folder Link(s) :TPS65148
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