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参数资料
| 型号： | LTC3425EUH#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 13/24页 |
| 文件大小： | 0K |
| 描述： | IC REG BOOST SYNC ADJ 5A 32QFN |
| 标准包装： | 2,500 |
| 类型： | 升压（升压） |
| 输出类型： | 可调式 |
| 输出数： | 1 |
| 输出电压： | 2.4 V ~ 5.25 V |
| 输入电压： | 0.5 V ~ 4.5 V |
| PWM 型： | 电流模式，混合 |
| 频率 - 开关： | 100kHz ~ 2MHz |
| 电流 - 输出： | 5A |
| 同步整流器： | 是 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 32-WFQFN 裸露焊盘 |
| 包装： | 带卷 (TR) |
| 供应商设备封装： | 32-QFN 裸露焊盘（5x5） |
LTC3425
OPERATIO
SWITCH A
VOLTAGE
SWITCH B
VOLTAGE
SWITCH C
VOLTAGE
SWITCH D
VOLTAGE
INDUCTOR A
CURRENT
INDUCTOR B
CURRENT
INDUCTOR C
CURRENT
INDUCTOR D
CURRENT
INPUT CURRENT
RECTIFIER A
CURRENT
RECTIFIER B
CURRENT
RECTIFIER C
CURRENT
RECTIFIER D
CURRENT
OUTPUT RIPPLE
CURRENT
3432 F03
Figure 3. Simplified Voltage and Current Waveforms
for 4-Phase Operation at 75% Duty Cycle
internally controlled. The device can start up under some
load (see the graph Start-Up Current vs Input Voltage).
Soft-start and inrush current limiting is provided during
start-up as well as normal mode. The same soft-start
capacitor is used for each operating mode.
During start-up, all four phases switch in unison. When
either V IN or V OUT exceeds 2.3V, the IC enters normal
operating mode. Once the output voltage exceeds the
input by 0.3V, the IC powers itself from V OUT instead of
V IN . At this point the internal circuitry has no dependency
on the V IN input voltage, eliminating the requirement for a
large input capacitor. The input voltage can drop as low as
0.5V without affecting circuit operation. The limiting factor
for the application becomes the ability of the power source
to supply sufficient energy to the output at the low volt-
ages, and the maximum duty cycle that is clamped at 90%.
3425f
13
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LTC3426 | 制造商:LINER 制造商全称:Linear Technology 功能描述:1.2MHz Step-Up DC/DC Converter in SOT-23 |
| LTC3426ES6 | 制造商:Linear Technology 功能描述:Conv DC-DC Single Step Up 1.6V to 4.3V 6-Pin TSOT-23 |
| LTC3426ES6#PBF | 制造商:Linear Technology 功能描述:Conv DC-DC Single Step Up 1.6V to 4.3V 6-Pin TSOT-23 |
| LTC3426ES6#TRM | 制造商:Linear Technology 功能描述:Conv DC-DC Single Step Up 1.6V to 4.3V 6-Pin TSOT-23 T/R |
| LTC3426ES6#TRMPBF | 功能描述:IC REG BOOST ADJ 2A TSOT23-6 RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:- 产品培训模块:High Efficiency Current Mode Switching Regulators CMOS LDO Regulators 特色产品:BD91x Series Step-Down Regulators 标准包装:2,500 系列:- 类型:降压（降压） 输出类型:两者兼有 输出数:2 输出电压:3.3V，0.8 V ~ 2.5 V 输入电压:4.5 V ~ 5.5 V PWM 型:电流模式 频率 - 开关:1MHz 电流 - 输出:1.5A 同步整流器:是 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:20-VFQFN 裸露焊盘 包装:带卷 (TR) 供应商设备封装:VQFN020V4040 产品目录页面:1373 (CN2011-ZH PDF) 其它名称:BD9152MUV-E2TR |
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