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参数资料
| 型号： | LTC3125EDCB#PBF |
| 厂商： | LINEAR TECHNOLOGY CORP |
| 元件分类： | 稳压器 |
| 英文描述： | SWITCHING REGULATOR, 1900 kHz SWITCHING FREQ-MAX, PDSO8 |
| 封装： | 2 X 2 MM, 0.75 MM HEIGHT, LEAD FREE, PLASTIC, DFN-8 |
| 文件页数： | 13/18页 |
| 文件大小： | 303K |
| 代理商： | LTC3125EDCB#PBF |
LTC3125
4
3125fa
Burst Mode Threshold Current
vs VIN
Oscillator Frequency vs VOUT
Efciency vs Load Current,
VOUT = 5V
Average Input Current Limit vs VIN
Average Input Current Limit
vs Temperature
Average Input Current vs RPROG
Peak Current Limit vs VIN
TYPICAL PERFORMANCE CHARACTERISTICS (T
A = 25°C unless otherwise noted)
No-Load Input Current vs VIN
Burst Mode Threshold Current
vs VIN
VIN (V)
1.5
A
VERAGE
INPUT
CURRENT
LIMIT
CHANGE
(%)
–0.5
0
0.5
3.0
4.0
3125 G05
–1.0
–1.5
–2.0
2.0
2.5
3.5
1.0
1.5
2.0
NORMALIZED TO 25°C
4.5
TEMPERATURE (°C)
–50
–1.50
AVERAGE
INPUT
CURRENT
LIMIT
CHANGE
(%)
–1.00
–0.50
0
0.50
1.50
–25
025
50
3125 G06
75
100
1.00
NORMALIZED TO 25°C
VIN (V)
1.5
INPUT
CURRENT
(A)
2.15
2.45
2.50
2.55
3
4
4.5
3125 G08
2.05
2.35
2.25
2.10
2.40
2.00
2.30
2.20
2
2.5
3.5
5
5.5
VOUT = 3.8V
RPROG = 0Ω
VOUT (V)
2.0
–8
FREQUENCY
CHANGE
(%)
–7
–5
–4
–3
2
–1
2.5
3.5
4.0
3125 G11
–6
0
1
–2
3.0
4.5
5.0
NORMALIZED TO VOUT = 3.3V
LOAD CURRENT (A)
0.001
40
EFFICIENCY
(%)
POWER
LOSS
(W)
50
60
70
80
0.01
0.1
1
3125 G03
30
20
10
0
90
100
0.1
0.01
0.001
1
VIN = 4V
VIN = 3.3V
VIN (V)
1.5
I IN
(mA)
1.5
2.0
2.5
3
4
3125 G04
1.0
0.5
0
2
2.5
3.5
3.0
3.5
4.0
VOUT = 4V
VOUT = 2.5V
VOUT = 3.8V
VOUT = 3.3V
RPROG (kΩ)
10 20 30 40 50
70 80 90 100
0
A
VERAGE
INPUT
CURRENT
LIMIT
(A)
0.25
0.50
0.75
1.00
60
110
3125 G07
1.25
VIN (V)
1.8
LOAD
CURRENT
(mA)
30
40
2.6
3125 G09
20
10
2.0
2.2
2.4
2.8
50
VOUT = 3.3V
COUT = 1500μF
L = 2.2μH
VIN (V)
1.8
20
LOAD
CURRENT
(mA)
25
30
35
40
45
50
1.9
2.0
2.1
2.2
3125 G10
VOUT = 2.5V
COUT = 1500μF
L = 2.2μH
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相关代理商/技术参数 |
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|---|---|
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| LTC3127EDD | 制造商:LINER 制造商全称:Linear Technology 功能描述:1A Buck-Boost DC/DC Converter with Programmable Input Current Limit |
| LTC3127EDD#PBF | 功能描述:IC BUCK BOOST SYNC ADJ 10DFN RoHS:是 类别:集成电路 (IC) >> PMIC - 电源管理 - 专用 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:50 系列:- 应用:热电冷却器 电流 - 电源:- 电源电压:3 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:28-SOIC（0.173"，4.40mm 宽）裸露焊盘 供应商设备封装:28-TSSOP 裸露焊盘 包装:管件 产品目录页面:1410 (CN2011-ZH PDF) |
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