参数资料
型号: TPS40021PWPG4
厂商: TEXAS INSTRUMENTS INC
元件分类: 稳压器
英文描述: 0.01 A SWITCHING CONTROLLER, 1100 kHz SWITCHING FREQ-MAX, PDSO16
封装: GREEN, PLASTIC, HTSSOP-16
文件页数: 11/36页
文件大小: 724K
代理商: TPS40021PWPG4
TPS40020
TPS40021
SLUS535D MARCH 2003 REVISED JULY 2007
www.ti.com
19
TYPICAL CHARACTERISTICS
f OS
C
Frequency
kHz
RT Timing Resistance k
TIMING RESISTANCE
vs
SWITCHING FREQUENCY
Figure 13
20
40
60
80
100
120
140
160
100
1000
500
600
800
900
300
400
700
200
VIN = 3.9 V
3.00
3.05
3.10
3.15
3.20
3.25
3.30
3.35
3.40
3.45
3.50
50
25
0
25
50
75
100
125
SOFT-START CURRENT
vs
JUNCTION TEMPERATURE
Figure 14
TJ Junction Temperature °C
I SS
Soft-Start
Sourcing
Current
A
Figure 15
50
20
25
20
5
0
15
0
25
50
75
100
125
10
5
15
ILIM OFFSET VOLTAGE
vs
JUNCTION TEMPERATURE
TJ Junction Temperature °C
V
ILIM
ILIM
Offset
V
oltage
mV
VDD = 2.0 V
VDD = 3.2 V
VDD = 4.9 V
SHUTDOWN THRESHOLD VOLTAGE
vs
JUNCTION TEMPERATURE
Figure 16
TJ Junction Temperature °C
V
SS
Shutdown
Threshold
V
oltage
V
50
25
0
25
50
75
100
125
0.20
0.30
0.24
0.25
0.27
0.29
0.22
0.28
0.23
0.26
0.21
Enable
Disable
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