NCP1529:1 A, 1.7 MHz Low Voltage Buck Converter
The NCP1529 step-down DC-DC converter is a monolithic integrated circuit for portable applications powered from one cell Li-ion or three cell Alkaline/NiCd/NiMH batteries. The device is able to deliver up to 1.0 A on an output range externally adjustable from 0.9 V to 3.9 V or fixed at 1.2 V or 1.35 V. It uses synchronous rectification to increase efficiency and reduce external part count. The device also has a built-in 1.7 MHz (nominal) oscillator which reduces component size by allowing a small inductor and capacitors. Automatic switching PWM/PFM mode offers improved system efficiency. Additional features include integrated soft-start, cycle-by-cycle current limiting and thermal shutdown protection. The NCP1529 is available in a space saving, low profile 2x2x0.5 mm UDFN6 package and TSOP-5 package.
技术特性
- 96% efficiency, 28 uA quiescent current, 0.3 uA shutdown current
- Extends battery life and 'play-time'
- 1.7 MHz switching frequency
- Allows use of smaller inductor and capacitor
- Auto-switching between PWM and PFM mode at light load conditions
- Low power consumption at light loading
- Adjustable output voltage from 0.9V to 3.9V
- Best in class Low Ripple even in PFM mode
终端产品
- Cellular phones, smart phones, and PDAs
- MP3 players and portable audio systems
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应用
- Battery powered applications power management
- Power supply for processor with low core voltage
- USB powered devices
- Low Voltage DC rails power management
封装图 PACKAGE DIMENSIONS
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评估板信息
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 |
| NCP1529ASNT1G |
Active |
|
1 A, 1.7 MHz Low Voltage Buck Converter |
TSOP-5 / SOT-23-5 |
483 |
1 |
Tape and Reel |
3000 |
$0.3333 |
| NCP1529MU12TBG |
Active |
|
1 A, 1.7 MHz Low Voltage Buck Converter |
UDFN-6 |
517AB |
1 |
Tape and Reel |
3000 |
$0.32 |
| NCP1529MU135TBG |
Active |
|
1 A, 1.7 MHz Low Voltage Buck Converter |
UDFN-6 |
517AB |
1 |
Tape and Reel |
3000 |
$0.32 |
| NCP1529MUTBG |
Active |
|
1 A, 1.7 MHz Low Voltage Buck Converter |
UDFN-6 |
517AB |
1 |
Tape and Reel |
3000 |
$0.32 |
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