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参数资料
| 型号： | LTC3544BEUD#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 7/18页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK SYNC ADJ QUAD 16QFN |
| 标准包装： | 2,500 |
| 类型： | 降压（降压） |
| 输出类型： | 可调式 |
| 输出数： | 4 |
| 输出电压： | 0.8 V ~ 5.5 V |
| 输入电压： | 2.25 V ~ 5.5 V |
| PWM 型： | 电流模式 |
| 频率 - 开关： | 2.25MHz |
| 电流 - 输出： | 100mA，200mA（2），300mA |
| 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： | 16-WFQFN 裸露焊盘 |
| 包装： | 带卷 (TR) |
| 供应商设备封装： | 16-QFN-EP（3x3） |
LTC3544B
PIN FUNCTIONS
V FB200B (Pin 1): 200mA Regulator B Feedback Pin. This
pin receives the feedback voltage from an external resistive
divider across the output.
V FB200A (Pin 2): 200mA Regulator A Feedback Pin. This
pin receives the feedback voltage from an external resistive
divider across the output.
RUN200A (Pin 3): 200mA Regulator A Enable Pin. Forcing
this pin to V IN enables the 200mA regulator (channel A),
while forcing it to GND causes the regulator to shut off.
SW200B (Pin 4): Switch Node Connection to Inductor for
200mA Regulator B. This pin connects to the drains of the
internal power MOSFET switches.
SW200A (Pin 5): Switch node Connection to Inductor for
200mA Regulator A. This pin connects to the drains of the
internal power MOSFET switches.
PGND (Pin 6): Power Path Return Pin for Both 200mA
Regulators and the 300mA Regulator.
PV IN (Pin 7): Power Path Supply Pin for Both 200mA
Regulators and the 300mA Regulator. This pin must
be closely decoupled to PGND, with a 4.7μF or greater
ceramic capacitor.
SW300 (Pin 8): Switch Node Connection to Inductor for
300mA Regulator. This pin connects to the drains of the
internal power MOSFET switches.
RUN300 (Pin 9): 300mA Regulator Enable Pin. Forcing
this pin to V IN enables the 300mA regulator, while forcing
it to GND causes the regulator to shut off.
V FB300 (Pin 10): 300mA Regulator Feedback Pin. This pin
receives the feedback voltage from an external resistive
divider across the output.
V FB100 (Pin 11): 100mA Regulator Feedback Pin. This pin
receives the feedback voltage from an external resistive
divider across the output.
RUN100 (Pin 12): 100mA Regulator Enable Pin. Forcing
this pin to V IN enables the 100mA regulator, while forcing
it to GND causes the 100mA regulator to shut off.
SW100 (Pin 13): Switch Node Connection to Inductor for
100mA Regulator. This pin connects to the drains of the
internal power MOSFET switches.
GNDA (Pin 14, Exposed Pad Pin 17): Ground Pin for In-
ternal Reference, Control Circuitry, and the Current Path
Return for 100mA Regulator. The exposed pad must be
soldered to PCB ground for electrical connection and rated
thermal performance.
V CC (Pin 15): Supply Pin for Internal Reference and Control
Circuitry. Power path supply pin for the 100mA regulator.
RUN200B (Pin 16): 200mA Regulator B Enable Pin. Forcing
this pin to V IN enables the 200mA regulator (channel B),
while forcing it to GND causes the regulator to shut off.
3544bfb
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LTC3544EUD | 制造商:LINER 制造商全称:Linear Technology 功能描述:Quad Synchronous Step-Down Regulator: 2.25MHz, 300mA, 200mA, 200mA, 100mA |
| LTC3544EUD#PBF | 功能描述:IC REG BUCK SYNC ADJ QUAD 16QFN RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:- 标准包装:250 系列:- 类型:降压（降压） 输出类型:固定 输出数:1 输出电压:1.2V 输入电压:2.05 V ~ 6 V PWM 型:电压模式 频率 - 开关:2MHz 电流 - 输出:500mA 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:6-UFDFN 包装:带卷 (TR) 供应商设备封装:6-SON（1.45x1） 产品目录页面:1032 (CN2011-ZH PDF) 其它名称:296-25628-2 |
| LTC3544EUD#TRPBF | 功能描述:IC REG BUCK SYNC ADJ QUAD 16QFN RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:- 标准包装:2,500 系列:- 类型:降压（降压） 输出类型:固定 输出数:1 输出电压:1.2V，1.5V，1.8V，2.5V 输入电压:2.7 V ~ 20 V PWM 型:- 频率 - 开关:- 电流 - 输出:50mA 同步整流器:是 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:10-TFSOP，10-MSOP（0.118"，3.00mm 宽）裸露焊盘 包装:带卷 (TR) 供应商设备封装:10-MSOP 裸露焊盘 |
| LTC3544EUDPBF | 制造商:Linear Technology 功能描述:2.25MHz Sync Step-Down Converter LTC3544 |
| LTC3544EUD-PBF | 制造商:LINER 制造商全称:Linear Technology 功能描述:Quad Synchronous Step-Down Regulator: 2.25MHz, 300mA, 200mA, 200mA, 100mA |
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