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参数资料
| 型号： | LTC3125EDCB#TRMPBF |
| 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： | 3 X 2 MM, 0.75 MM HEIGHT, LEAD FREE, PLASTIC, DFN-8 |
| 文件页数： | 6/16页 |
| 文件大小： | 292K |
| 代理商： | LTC3125EDCB#TRMPBF |
LTC3125
14
3125f
TYPICAL APPLICATIONS
Stacked Supercap Charger
3.3V to 5V with Selectable Input Current Limit
CS
2.2μH*
LTC3125
GND
VIN
2.74M
100k
10μF
CER
VOUT
4.5V
30F**
2.3V
VIN
2.5V TO 5V
500mA MAX
1M
*TDK VLF4014ST-2R2M1R9
**PANASONIC EECHWOD306
3125 TA06a
SHDN
PROG
VOUT
FB
44.2k
SW
OFF ON
+
30F**
2.3V
+
CS
2.2μH*
LTC3125
GND
VIN
3.2M
COUT
10μF
CER
VOUT
5V
VIN
3.3V ±10%
1M
*TDK VLF4014ST-2R2M1R9
3125 TA07a
SHDN
PROG
M1
VOUT
FB
44.2k
28.7k
SW
OFF ON
300mA 500mA
Waveforms of Input Current, VOUT During Charging
Waveforms of Input Current, VOUT for Pulsed Input Current Limit
VOUT
2V/DIV
SHDN
5V/DIV
LOAD CURRENT
200mA/DIV
20s/DIV
VIN = 4.5V
VOUT = 4.5V
COUT_SERIES = 15F
L = 2.2μH
RPROG = 44.2k
3125 TA06b
INPUT CURRENT
200mA/DIV
M1 GATE DRIVE
5V/DIV
2ms/DIV
VIN = 3.3V
VOUT = 5V
COUT = 4.4mF
L = 2.2μH
ILOAD = 500mA
3125 TA07b
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LTC3125EDCB-TRPBF | 制造商:LINER 制造商全称:Linear Technology 功能描述:1.2A Synchronous Step-Up DC/DC Converter with Input Current Limit |
| LTC3127 | 制造商:LINEAR 制造商全称:LINEAR 功能描述:40V, 2A Synchronous Buck-Boost DC/DC Converter |
| 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) |
| LTC3127EDD#PBF | 制造商:Linear Technology 功能描述:BUCK-BOOST DC/DC CONVERTER IC |
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