參數(shù)資料
型號(hào)： TPS62050DGSG4
廠商： TEXAS INSTRUMENTS INC
元件分類： 穩(wěn)壓器
英文描述： 1.4 A SWITCHING REGULATOR, 1000 kHz SWITCHING FREQ-MAX, PDSO10
封裝： GREEN, PLASTIC, MSOP-10
文件頁(yè)數(shù)： 25/25頁(yè)
文件大小： 602K
代理商： TPS62050DGSG4
www.ti.com
0
10
20
30
40
50
60
70
80
90
100
0.01
0.1
1
10
100
1 k
IL Load Current mA
Efficiency
%
VI = 3.5 V
SYNC = H
VO = 3.3 V
TA = 25°C
VI = 5 V
VI = 10 V
VI = 7.2 V
0
10
20
30
40
50
60
70
80
90
100
0.01
0.1
1
10
100
1 k
IL Load Current mA
Efficiency
%
VI = 2.7 V
SYNC = H
VO = 1.8 V
TA = 25°C
VI = 5 V
VI = 3.3 V
VI = 10 V
VI = 7.2 V
800
810
820
830
840
850
860
870
880
890
900
40
20
0
20
40
60
80
100
Switching
Frequency
kHz
TA Free-Air Temperature °C
2.7 V
3.6 V
7.2 V
5 V
VI = 4.5 V to 5.5 V to 4.5 V
1
s/div
10
mV/div
500
mv/div
VO
1
s/div
2
V/div
VI = 7.2 V
VO = 3.3 V
IO = 800 mA
Output Voltage
Voltage at SW Pin
10
mV/div
10
s/div
2
V/div
10
mV/div
VI = 7.2 V, VO = 3.3 V
Output Voltage
Voltage at SW Pin
IO = 20 mA
VI = 5 V
RL = 2.7
EN
VO
II
5
V/div
100
mA/div
200
s/div
1
V/div
50
s/div
500
mA/div
50
mV/div
VI = 5 V
VO = 3.3 V
Output Voltage
Load Step = 60 mA to 540 mA
Voltage at SW Pin
Inductor Current
VI = 5 V
IO = 100 mA
5
V/div
100
mA/div
5
s/div
TPS62050, TPS62051
TPS62052, TPS62054, TPS62056
SLVS432D – SEPTEMBER 2002 – REVISED OCTOBER 2003
TYPICAL CHARACTERISTICS (continued)
TPS62054
TPS62056
EFFICIENCY
SWITCHING FREQUENCY
vs
LOAD CURRENT
FREE-AIR TEMPERATURE
Figure 7.
Figure 8.
Figure 9.
OUTPUT VOLTAGE RIPPLE
LINE TRANSIENT RESPONSE
IN SKIP MODE
IN PWM MODE
Figure 10.
Figure 11.
Figure 12.
V(SWITCH) AND IL
(INDUCTOR CURRENT)
LOAD TRANSIENT
IN SKIP MODE
START-UP TIMING
Figure 13.
Figure 14.
Figure 15.
9
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