CXSU63179是同步整流器、固定开关频率（典型值为1.2兆赫）和电流模式升压调节器。该设备允许使用USB设备的小电感和输出电容器。电流模式控制方案具有快速的瞬态响应和良好的输出电压精度。在轻负载时，CXSU63179将自动进入脉冲频率调制（PFM）操作，以减少主开关损耗。在PFM操作期间，IC消耗非常低的静态电流，并在整个负载范围内保持高效率
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产品概述 返回TOP
The CXSU63179 is a synchronous rectifier, fixed switching frequency (1.2MHz typical), and current‐mode step‐up regulator. The device allows use of small inductors and output capacitors for USB devices. The current‐mode control scheme provides fast transient response and good output voltage accuracy. At light loads, the CXSU63179 will automatically enter in Pulse Frequency Modulation (PFM) operation to reduce the dominant switching losses. During PFM operation,the IC consumes very low quiescent current and maintains high efficiency over the complete load range.The CXSU63179 also includes current‐limit and overtemperature shutdown to prevent damage in the event of an output overload. The CXSU63179 is available in ESOP‐8 packages.
产品特点 返回TOP
92%EffiicencySynchronousBoostConverter With 1000‐mA Output Current From 1.8V Input
Stable with Low ESR Output Capacitors
Fixed 1.2MHz Oscillator Frequency
Low EMI Converter (Integrated Anti‐Ringing Function)
Low Battery Output
Integrated Power SaveModeOperation to Improve Light Load Efficiency
On load startup
Automatic restart after protection
Load Disconnected During Shutdown
Output Current‐Limit Protection
Over Temperature Protection
Under Voltage Protection
Enable/ShutdownFunction
Available in ESOP‐8 Packages
Lead Free and Green Devices Available(RoHS Compliant)
应用范围 返回TOP
Power Bank
Tablet
Portable Equiment
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产品封装图 返回TOP
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| Step-up Converter | ||||||
| Part No. | Input Voltage | Output Voltage | Current MAX | Frequency | Efficiency | Package |
| CXSU63168 | 6V | 20V | 350mA | 1.25MHz | 90% | SOT23-6 |
| CXSU63169 | 6V | 20V/28V/35V | 1A | 1MHz | 90% | SOT23-6 |
| CXSU63170 | 6V | 24V | 2A | 1.5MHz | 90% | SOT23-6 |
| CXSU63171 | 6V | 6V | 2A | 1MHz | 90% | SOT23-6 |
| CXSU63172 | 6V | 20V | 2A | 1.5MHz | 88% | SOT23-5 |
| CXSU63173 | 6V | 20V | 2A | 1.5MHz | 88% | SOT23-6 |
| CXSU63174 | 20V | 30V | 3.5A | 1.2MHz | 95% | DFN-10 |
| CXSU63175 | 6V | --V | --A | 1MHz | 90% | SOP-8/TSSOP-8 |
| CXSU63176 | 6V | 6V | 2A | 1MHz | 95% | SOT23-6 |
| CXSU63177 | 5V | 5V | 2.1A | 1.2MHz | 92% | /DFN-12/QFN-16QFN-16 |
| CXSU63178 | 5V | 5V | 2.1A | 1.2MHz | 92% | ESOP-8 |
| CXSU63179 | 5V | 5V | 6A | 1.2MHz | 92% | ESOP-8 |
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