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参数资料
| 型号： | NCP1550SN25T1G |
| 厂商： | ON Semiconductor |
| 文件页数： | 15/17页 |
| 文件大小： | 0K |
| 描述： | IC REG CTRLR BUCK PWM VM 5TSOP |
| 产品变化通告： | Product Obsolescence 01/Jul/2009 |
| 标准包装： | 1 |
| PWM 型： | 电压模式 |
| 输出数： | 1 |
| 频率 - 最大： | 690kHz |
| 占空比： | 100% |
| 电源电压： | 2.45 V ~ 5.5 V |
| 降压： | 是 |
| 升压： | 无 |
| 回扫： | 无 |
| 反相： | 无 |
| 倍增器： | 无 |
| 除法器： | 无 |
| Cuk： | 无 |
| 隔离： | 无 |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 6-TSOP（0.059"，1.50mm 宽）5 引线 |
| 包装： | 剪切带 (CT) |
| 其它名称： | NCP1550SN25T1GOSCT |
NCP1550
PCB Layout Recommendations
Good PCB layout plays an important role in switching
mode power conversion. Careful PCB layout can help to
minimize ground bounce, EMI noise and unwanted
feedbacks that can affect the performance of the converter.
Suggested hints below can be used as a guideline in most
situations.
Grounding
Star?ground connection should be used to connect the
output power return ground, the input power return ground
and the device power ground together at one point. All high
current running paths must be thick enough for current
flowing through and producing insignificant voltage drop
Components Placement
Power components, i.e. input capacitor, inductor and
output capacitor, must be placed as close together as possible.
All connecting traces must be short, direct and thick. High
current flowing and switching paths must be kept away from
the feedback (V OUT , pin 3) terminal to avoid unwanted
injection of noise into the feedback path.
Feedback Path
Feedback of the output voltage must be a separate trace
separated from the power path. The output voltage sensing
trace to the feedback (V OUT , pin 3) pin should be connected
to the output voltage directly at the anode of the output
capacitor.
along the path. Feedback signal path must be separated from
the main current path and sensing directly at the anode of the
output capacitor.
External Component Reference Data
Output and Input
Inductor
External MOSFET
Diode
Capacitor
Device
NCP1550SN18T1
V OUT
1.8 V
Inductor Model
CDD5D23 6R8 (1A)
CDRH6D38 6R8 (2A)
(L)
6.8 m H
(M)
NTGS3441T1 (1A)
NTGS3443T1 (2A)
(SD)
MBRM120LT3
ON Semiconductor
C OUT /C IN
33 m F/33 m F (1A)
68 m F/33 m F (2A)
Sumida
ON Semiconductor
KEMET
(T494 series)
NCP1550SN19T1
1.9 V
CDC5D23 6R8 (1A)
CDRH6D38 6R8 (2A)
6.8 m H
NTGS3441T1 (1A)
NTGS3443T1 (2A)
MBRM120LT3
ON Semiconductor
33 m F/33 m F (1A)
68 m F/33 m F (2A)
Sumida
ON Semiconductor
KEMET
(T494 series)
NCP1550SN25T1
2.5 V
CDC5D23 5R6 (1A)
CDRH6D38 5R0 (2A)
5.6 m H
5.0 m H
NTGS3441T1 (1A)
NTGS3443T1 (2A)
MBRM120LT3
ON Semiconductor
33 m F/33 m F (1A)
68 m F/33 m F (2A)
Sumida
ON Semiconductor
KEMET
(T494 series)
NCP1550SN27T1
2.7 V
CDC5D23 5R6 (1A)
CDRH6D38 5R0 (2A)
5.6 m H
5.0 m H
NTGS3441T1 (1A)
NTGS3443T1 (2A)
MBRM120LT3
Semiconductor
33 m F/33 m F (1A)
68 m F/33 m F (2A)
Sumida
ON Semiconductor
KEMET
(T494 series)
NCP1550SN30T1
3.0 V
CDC5D23 4R7 (1A)
CDRH6D28 5R0 (2A)
5.6 m H
5.0 m H
NTGS3441T1 (1A)
NTGS3443T1 (2A)
MBRM120LT3
ON Semiconductor
33 m F/33 m F (1A)
68 m F/33 m F (2A)
Sumida
ON Semiconductor
KEMET
(T494 series)
NCP1550SN33T1
3.3 V
CD43 3R3 (1A)
CDRH6D38 3R3 (2A)
3.3 m H
NTGS3441T1 (1A)
NTGS3443T1 (2A)
MBRM120LT3
ON Semiconductor
68 m F/33 m F (1A)
100 m F/68 m F (2A)
Sumida
ON Semiconductor
KEMET
(T494 series)
http://onsemi.com
15
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相关代理商/技术参数 |
参数描述 |
|---|---|
| NCP1550SN27T1 | 功能描述:直流/直流开关转换器 1.8V 2A Buck PWM/PFM RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
| NCP1550SN27T1G | 功能描述:直流/直流开关转换器 1.8V 2A Buck PWM/PFM w/Enable Soft Start RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
| NCP1550SN30T1 | 功能描述:直流/直流开关转换器 1.8V 2A Buck PWM/PFM RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
| NCP1550SN30T1G | 功能描述:直流/直流开关转换器 1.8V 2A Buck PWM/PFM w/Enable Soft Start RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
| NCP1550SN33T1 | 功能描述:直流/直流开关转换器 1.8V 2A Buck PWM/PFM RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
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