NCP1421EVB:NCP1421 Up to 600 mA DC-DC Converter Evaluation Board
NCP1421 is a monolithic, micro-power, high-frequency, step-up switching converter IC designed for battery operated hand-held electronic products with up to 600 mA loading. It integrates a synchronous rectifier (Sync-Rect) to improve efficiency and to eliminate the external Schottky Diode. The NCP1421's high switching frequency (up to 1.2 MHz) allows for a low profile, small sized inductor and output capacitor to be used. When the device is disabled, the internal conduction path from the battery to the load is fully blocked, which isolates the load from the battery. This True-Cutoff function reduces the shutdown current to typically only 50nA. A Ring-Killer is also integrated to eliminate high-frequency ringing in discontinuous conduction mode. Finally, a Low-Battery Detector, Logic-Controlled Shutdown, Cycle-by Cycle Current Limiting and Thermal Shutdown provide value-added features for various battery operated applications. With all these functions ON, the quiescent supply current is typically only 8.5 µA. This device is available in the compact and low profile Micro8 package.
特性
- High Efficiency up to 92%
- Output Current up to 250 mA @ Vin = 2.5 V, Vout = 3.3 V
- Very Low Device Quiescent Supply Current of 9.0 uA Typical
- High Switching Frequency (up to 600 kHz) Allows Use of Small Size Inductor and Capacitor
- High Accuracy Reference Output, 1.19 V 0.6% @ 25C, can supply more than 2.5 mA when Vout = 3.3 V
- 1.0 A Cycle-by-Cycle Current Limit
- Logic-Controlled Shutdown
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LC01707PLFGEVB 实物图
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评估板信息
| 评估板 |
状况 |
无铅(Pb-free) |
简短说明 |
所用产品 |
| NCP1421EVB |
Active |
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NCP1421 Up to 600 mA DC-DC Converter Evaluation Board |
NCP1421DMR2G |
技术文档
