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参数资料
| 型号： | NCP1550SN19T1G |
| 厂商： | ON Semiconductor |
| 文件页数： | 1/17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： | NCP1550SN19T1GOSCT |
NCP1550
600 kHz PWM/PFM
Step?Down DC?DC
Controller
The NCP1550 is a monolithic micropower high frequency voltage
mode step?down controller IC, specially designed for battery operated
hand?held electronic products. With appropriate external P?type
MOSFET, the device can provide up to 2.0 A loading current with high
conversion efficiency. The device operates in Constant?Frequency
PWM mode at normal operation, that ensures low output ripple noise,
and which will automatically switch to PFM mode at low output loads
for higher efficiency. Additionally, value?added features of Chip
Enable to reduce IC Off?State current and integrated feedback resistor
network, make it the best choice for portable applications. The device is
designed to operate for voltage regulation with minimum external
components and board space. This device is available in a TSOP?5
package with six standard output voltage options.
Features
? High Efficiency 92%, Typical
? Low Quiescent Bias Current of 50 m A
(Typical at PFM Mode with No Load)
http://onsemi.com
1
TSOP?5
SN SUFFIX
CASE 483
MARKING DIAGRAM
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Output Voltage Options from 1.8 V to 3.3 V
with High Accuracy $ 2.0%
Low Output Voltage Ripple, 50 mV, Typical
PWM Switching Frequency at 600 kHz
Automatic PWM/PFM Switchover at Light Load Condition
Very Low Dropout Operation, 100% Max. Duty Cycle
Chip Enable Pin with On?Chip 150 nA Pullup Current Source
Low Shutdown Current, 0.3 m A, Typical
Input Voltage Range from 2.45 V to 5.5 V
Built?in Soft?Start
Internal Undervoltage Lockout (UVLO) Protection
Low Profile and Minimum External Components
Micro Miniature TSOP?5 Package
Pb?Free Packages are Available
5
xxx AYW G
G
1
xxx = Specific Device Code
A = Assembly Location
Y = Year
W = Work Week
G = Pb?Free Package
(Note: Microdot may be in either location)
PIN CONNECTIONS
Typical Applications
? Personal Digital Assistant (PDA)
? Camcorders and Digital Still Camera
? Hand?Held Instrument
? Distributed Power System
? Computer Peripheral
? Conversion from Four NiMH or NiCd or One Lithium?ion Cells to
CE
GND
V OUT
1
2
3
(Top View)
5
4
V IN
EXT
3.3 V/1.8 V
ORDERING INFORMATION
See detailed ordering and shipping information in the package
? Semiconductor Components Industries, LLC, 2006
July, 2006 ? Rev. 8
1
Publication Order Number:
NCP1550/D
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相关代理商/技术参数 |
参数描述 |
|---|---|
| NCP1550SN25T1 | 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 |
| NCP1550SN25T1G | 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 |
| 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 |
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