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: 10/36页
文件大小: 724K
代理商: TPS40021PWPG4
TPS40020
TPS40021
SLUS535D MARCH 2003 REVISED JULY 2007
www.ti.com
18
TYPICAL CHARACTERISTICS
Figure 9
Maximum
Duty
Cycle
%
TJ Junction Temperature °C
MAXIMUM DUTY CYCLE
vs
JUNCTION TEMPERATURE
50
93
25
94
95
96
97
98
99
0
25
50
75
100
125
VDD = 3.3 V, RT = 69.8 k
VDD = 5 V, RT = 35 k
Figure 10
f OS
C
Oscillator
Frequency
kHz
TJ Junction Temperature °C
OSCILLATOR FREQUENCY
vs
JUNCTION TEMPERATURE
50
450
25
950
650
700
800
900
1000
0
25
50
75
100
125
550
850
600
750
500
RT = 35 k
RT = 69.8 k
Figure 11
50
0.500
50
25
0
25
125
75
100
0.525
0.550
0.650
0.675
0.700
0.625
0.600
0.575
I DD
Shutdown
Supply
Current
mA
TJ Junction Temperature °C
SHUTDOWN SUPPLY CURRENT
vs
JUNCTION TEMPERATURE
Figure 12
V
REF
Reference
V
oltage
mV
TJ Junction Temperature °C
REFERENCE VOLTAGE
vs
JUNCTION TEMPERATURE
683
685
687
689
691
693
695
697
50
25
0
25
50
75
100
125
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