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參數(shù)資料
型號(hào): 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): 33/34頁
文件大小: 847K
代理商: TPS65161PWPRG4
0
0.02
0.04
0.06
0.08
0.1
0.12
0.14
0.16
40 20
0
20
40
60
80
100
120
140
r DS(on)
N-Channel
Switch
TA Temperature 5C
VI = 8 V,
VI = 12 V,
VI = 14 V
0
10
20
30
40
50
60
70
80
90
100
0
0.5
1
1.5
2
VI = 12 V,
VO = 15 V,
L = 10 mH
IO Output Current A
Efficiency
%
SLVS617D – APRIL 2006 – REVISED SEPTEMBER 2009 ............................................................................................................................................... www.ti.com
TYPICAL CHARACTERISTICS
TABLE OF GRAPHS
FIGURE
MAIN BOOST CONVERTER (Vs)
η
Efficiency main boost converter VS
vs Load current VS = 15 V, VIN = 12 V
1
rDS(ON)
N-channel main switch Q1
vs Input voltage and temperature
2
Soft-start boost converter
CSS = 22 nF
3
PWM operation at full-load current
4
PWM operation at light-load current
5
Load transient response
6
STEP-DOWN CONVERTER (V(LOGIC))
η
Efficiency main boost converter VS
vs Load current V(LOGIC) = 3.3 V, VIN = 12 V
7
rDS(ON)
N-channel main switch Q5
8
PWM operation - continuous mode
9
PWM operation - discontinuous mode
10
Soft start
11
Load transient response
12
SYSTEM PERFORMANCE
fosc
Oscillation frequency
vs Input voltage and temperature
13
Power-up sequencing
EN2 connected to VIN
14
Power-up sequencing
EN2 enabled separately
15
BOOST CONVERTER
BOOST CONVERTER EFFICIENCY
rDS(on) - N-CHANNEL SWITCH
vs
OUTPUT CURRENT
TEMPERATURE
Figure 1.
Figure 2.
8
Copyright 2006–2009, Texas Instruments Incorporated
Product Folder Link(s): TPS65161 TPS65161A TPS65161B
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