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参数资料
| 型号： | LT3467IS6#TRMPBF |
| 厂商： | Linear Technology |
| 文件页数： | 11/18页 |
| 文件大小： | 0K |
| 描述： | IC REG BOOST ADJ 1.1A SOT23-6 |
| 标准包装： | 500 |
| 类型： | 升压（升压） |
| 输出类型： | 可调式 |
| 输出数： | 1 |
| 输出电压： | 1.26 V ~ 40 V |
| 输入电压： | 2.4 V ~ 16 V |
| PWM 型： | 电流模式 |
| 频率 - 开关： | 1.3MHz |
| 电流 - 输出： | 1.1A |
| 同步整流器： | 无 |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | SOT-23-6 细型，TSOT-23-6 |
| 包装： | 带卷 (TR) |
| 供应商设备封装： | TSOT-23-6 |
LT3467/LT3467A
APPLICATIONS INFORMATION
Using the circuit of Figure 2 as an example, the following
Table 3. Bode Plot Parameters
table shows the parameters used to generate the Bode
plot shown in Figure 7.
PARAMETER
R L
VALUE
10.4
UNITS
Ω
COMMENT
Application Speci?c
50
40
30
20
10
0
–10
–20
0
–45
–90
–135
–180
–225
–270
–315
C OUT
R ESR
R O
C C
C PL
R C
R1
R2
15
10
0.4
60
3.3
100
402
133
μF
mΩ
MΩ
pF
pF
kΩ
kΩ
kΩ
Application Speci?c
Application Speci?c
Not Adjustable
Not Adjustable
Adjustable
Not Adjustable
Adjustable
Adjustable
–30
–40
–50
GAIN
PHASE
–360
–405
–450
V OUT
V IN
5
3.3
V
V
Application Speci?c
Application Speci?c
100
1k
10k 100k
FREQUENCY (Hz)
1M
3467 F07
g ma
g mp
35
7.5
μmho
mho
Not Adjustable
Not Adjustable
Figure 7. Bode Plot of 3.3V to 5V Application
L
f S
2.7
1.3*
μH
MHz
Application Speci?c
Not Adjustable
*2.1MHz for LT3467A
From Figure 7, the phase is –138° when the gain reaches
0dB giving a phase margin of 42°. This is more than
adequate. The crossover frequency is 37kHz.
TYPICAL APPLICATIONS
Lithium-Ion to 6V Step-Up DC/DC Converter
Li-Ion to 6V
V IN
2.7V TO 4.2V
L1
2.2μH
D1
V OUT
6V
95
90
V IN = 4.2V
C1
2.2μF
SHDN
V IN
SHDN
LT3467
SW
R1
501k
C3
1.8pF
275mA AT V IN = 2.7V
490mA AT V IN = 3.8V
590mA AT V IN = 4.2V
85
80
75
V IN = 2.7V
V IN = 3.8V
C4
0.047μF
SS
GND
FB
R2
133k
C2
15μF
70
65
60
C1, C2: X5R OR X7R, 6.3V
D1: ON SEMICONDUCTOR MBRM120
L1: SUMIDA CR43-2R2
3467 TA02
55
50
50 100
200
300 400
500
600
700
I OUT (mA)
3467 TA02b
3467afe
11
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