NCP1523B:3.0 MHz, 600 mA Synchronous PWM Buck Converter
The NCP1523 step-down PWM DC-DC converter is optimized for portable applications powered from 1-cell Li-ion or 3 cell Alkaline/NiCd/NiMH batteries. The device is available in an adjustable output voltage from 0.9 V to 3.3 V. It uses synchronous rectification to increase efficiency and reduce external part count. The device also has a built-in 3 MHz (nominal) oscillator which reduces component size by allowing use of a small inductor and capacitors. NCP1523 is available in automatic switching PWM/PFM (NCP1523FCT2G) improving system efficiency and in PWM mode only (NCP1523BFCT2G) offering a very efficient load transient solution. Additional features include integrated soft-start, cycle-by-cycle current limiting and thermal shutdown protection. The NCP1523 is available in a space saving, 8 pin chip scale package.
技术特性
- Up to 93% Efficiency, 60 uA Quiescent Current, Shutdown Current Consumption of 0.3 A
- Extends battery life and 'play-time'
- Auto-switching between PWM and PFM mode at light load conditions (NCP1523FCT2G)
- Low power consumption at light loading
- PWM mode operation (NCP1523BFCT2G)
- Very efficient load transient solution, low output voltage ripple at light load
- Adjustable output voltage from 0.9V to 3.3V
终端产品
- Cellular phones, smart phones, and PDAs
- MP3 players and portable audio systems
- Digital still cameras and video cameras
应用
- Power supply for application processor
- Power supply for processor with low core voltage
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封装图 PACKAGE DIMENSIONS
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评估板信息
| 评估板 |
状况 |
无铅(Pb-free) |
简短说明 |
| NCP1523BGEVB |
Active |
 |
NCP1523B Step Down DC-DC Converter Evaluation Board |
订购信息 Ordering Information
| 产品 |
状况 |
Compliance |
具体说明 |
封装 |
MSL* |
容器 |
预算价格 (1千个数量的单价） |
| 类型 |
外形 |
类型 |
数量 |
| NCP1523BFCT2G |
Active |
|
3.0 MHz, 600 mA Synchronous PWM Buck Converter, 3 MHz, 600 mA, High-Efficiency, Adjustable Output Voltage Step-Down Converter |
Flip-Chip-8 |
766AE |
1 |
Die Surf Tape and Reel |
3000 |
$0.4 |
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