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參數(shù)資料
| 型號(hào)： | TPS6223-1.5DRYT |
| 廠(chǎng)商： | TEXAS INSTRUMENTS INC |
| 元件分類(lèi)： | 穩(wěn)壓器 |
| 英文描述： | 1.22 A SWITCHING REGULATOR, 3800 kHz SWITCHING FREQ-MAX, PDSO6 |
| 封裝： | 1 X 1.50 MM, 0.60 MM HEIGHT, PLASTIC, MO-287UFAD, SON-6 |
| 文件頁(yè)數(shù)： | 26/28頁(yè) |
| 文件大?。?/td> | 1276K |
| 代理商： | TPS6223-1.5DRYT |
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0.1
1
10
100
1000
I
-OutputCurrent-mA
O
0
10
20
30
40
50
60
70
80
90
100
Efficiency-%
MODE=GND,
V
=2.5V,
L =2.2 H(LQM2HPN2R2MJ0)
C
=4.7 F
OUT
m
V
=5V
IN
V
=2.9V
IN
V
=3.6V
IN
V
=4.2V
IN
0
10
20
30
40
50
60
70
80
90
100
Efficiency-%
1
10
100
1000
I
-OutputCurrent-mA
O
V
=5V
IN
V
=2.9V
IN
V
=3.6V
IN
MODE=V ,
V
=2.5V,
L =2.2 H(LQM2HPN2R2MJ0)
C
=4.7 F
IN
OUT
m
V
=4.2V
IN
www.ti.com....................................................................................................................................................... SLVS941A – APRIL 2009 – REVISED AUGUST 2009
TYPICAL CHARACTERISTICS
Table of Graphs
FIGURE
η
Efficiency
vs Load current
1, 2, 3, 4, 5, 6, 7
8, 9, 10, 11, 12,
VO
Output voltage
vs Output current
13
14, 15, 16, 17,
Switching frequency
vs Output current
18, 19, 20
IQ
Quiescent current
vs Ambient temperature
21
ISD
Shutdown current
vs Ambient temperature
22
PMOS Static drain-source on-state resistance
vs Supply voltage and ambient temperature
23
rDS(ON)
NMOS Static drain-source on-state resistance
vs Supply voltage and ambient temperature
24
PSRR
Power supply rejection ratio
vs Frequency
25
Typical operation
26, 27, 28
PFM
29
Line transient response
PWM
30
Mode transition PFM / forced PWM
31
AC - load regulation performance
32, 33, 34
Load transient response
35, 36, 37, 38
Start-up
39, 40
–
Figure 1. Efficiency PFM/PWM Mode 2.5V Output Voltage
Figure 2. Efficiency Forced PWM Mode 2.5V Output Voltage
Copyright 2009, Texas Instruments Incorporated
7
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