參數(shù)資料
型號: TPS65161PWPRG4
廠商: TEXAS INSTRUMENTS INC
元件分類: 穩(wěn)壓器
英文描述: 4.2 A SWITCHING REGULATOR, 900 kHz SWITCHING FREQ-MAX, PDSO28
封裝: GREEN, PLASTIC, HTSSOP-28
文件頁數(shù): 2/34頁
文件大小: 847K
代理商: TPS65161PWPRG4
0
10
20
30
40
50
60
70
80
90
0
0.5
1
1.5
2
VI = 12 V,
VO = 3.3 V,
L = 15 mH
IO Output Current A
Efficiency
%
0
0.05
0.1
0.15
0.2
0.25
40
20
0
20
40
60
80
100
120
140
r DS(on)
N-Channel
Switch
VI = 8 V,
VI = 12 V,
VI = 14 V
TA Temperature 5C
VSW
5 V/div
VO
20 mV/div
I(Inductor)
100 mA/div
500 ns/div
VI = 12 V,
VO = 3.3 V/45 mA
VSW
5 V/div
VO
20 mV/div
I(Inductor)
1 A/div
500 ns/div
VI = 12 V,
VO = 3.3 V/1.5 A
SLVS617D – APRIL 2006 – REVISED SEPTEMBER 2009 ............................................................................................................................................... www.ti.com
STEP-DOWN CONVERTER
EFFICIENCY STEP-DOWN CONVERTER
rDS(ON) - N-CHANNEL SWITCH
vs
LOAD CURRENT
TEMPERATURE
Figure 7.
Figure 8.
STEP-DOWN CONVERTER
PWM OPERATION
CONTINUOUS MODE
DISCONTINUOUS MODE
Figure 9.
Figure 10.
10
Copyright 2006–2009, Texas Instruments Incorporated
Product Folder Link(s): TPS65161 TPS65161A TPS65161B
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