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数据: 采用 DCS-Control 的 TPS62147、TPS62148 高精度 3V 至 17V 2A 降压转换器 数据表
TPS62147和TPS62148是高效率且简便易用的同步降压直流/直流转换器,基于DCS-Control™拓扑技术。其3V至17V的宽输入电压范围使其适用于多节锂离子电池以及12V中间电源轨。该器件提供2A连续输出电流。该器件可在轻负载时自动进入省电模式,以便在整个负载范围内保持高效率。凭借此功能,该器件非常适合用于需要连接待机性能的应用,比如工业计算机和视频监控.MODE引脚设置为低之后,器件会根据输出电流以及输入和输出电压自动调整开关频率。该技术称为自动效率提高(AEE™),可以在整个运行范围内保持高转换效率.TPS62147,TPS62148可在PWM模式中提供1%的输出电压精度,因此可支持高输出电压精度的电源设计.FSEL引脚允许在强制PWM模式中分别设置1.25MHz或2.5MHz的开关频率。
典型静态电流为18μA。在关断式中,典型电流为1μA。
此器件提供了可调节版本,采用3毫米x 2mm的VQFN封装。
所有商标均为其各自所有者的财产。
Vin (Min) (V) |
Vin (Max) (V) |
Vout (Min) (V) |
Vout (Max) (V) |
Iout (Max) (A) |
Regulated Outputs (#) |
Switching Frequency (Min) (kHz) |
Switching Frequency (Max) (kHz) |
Iq (Typ) (mA) |
Features |
Control Mode |
Duty Cycle (Max) (%) |
Operating Temperature Range (C) |
Rating |
Package Group |
TPS62147 | TPS62135 | TPS62136 | TPS62140 | TPS62148 |
---|---|---|---|---|
3 | 3 | 3 | 3 | 3 |
17 | 17 | 17 | 17 | 17 |
0.8 | 0.8 | 0.8 | 0.9 | 0.8 |
12 | 12 | 12 | 6.3 | 12 |
2 | 4 | 4 | 2 | 2 |
1 | 1 | 1 | 1 | 1 |
1250 | 2500 | 1000 | 1250 | 1250 |
2500 | 2500 | 1000 | 2500 | 2500 |
0.018 | 0.018 | 0.018 | 0.017 | 0.018 |
Enable Forced Pulse Width Modulation (FPWM) Mode Light Load Efficiency Output Discharge Over Current Protection Power Good Pre-Bias Start-Up Synchronous Rectification Tracking UVLO Adjustable | Enable Light Load Efficiency Output Discharge Power Good Pre-Bias Start-Up Synchronous Rectification Tracking UVLO Fixed VID: other | Dynamic Voltage Scaling Enable Forced Pulse Width Modulation (FPWM) Mode Light Load Efficiency Output Discharge Over Current Protection Power Good Pre-Bias Start-Up Synchronous Rectification Tracking UVLO Fixed VID: 2-bit | Enable Light Load Efficiency Output Discharge Over Current Protection Power Good Pre-Bias Start-Up Synchronous Rectification Tracking UVLO Fixed Voltage Margining | Enable Forced Pulse Width Modulation (FPWM) Mode Light Load Efficiency Output Discharge Over Current Protection Power Good Pre-Bias Start-Up Synchronous Rectification Tracking UVLO Adjustable |
DCS-Control | Constant on-time (COT) DCS-Control | Constant on-time (COT) DCS-Control | Constant on-time (COT) DCS-Control | DCS-Control |
100 | 100 | 100 | 100 | 100 |
-40 to 125 | -40 to 125 | -40 to 125 | -40 to 125 | -40 to 125 |
Catalog | Catalog | Catalog | Catalog | Catalog |
VQFN-HR | VQFN-HR | VQFN-HR | VQFN | VQFN-HR |
型号:TPS62147RGXT 封装:VQFN11_3X2MM_EP
品牌:TI 描述:采用 2x3QFN 封装并具有 1% 精度和 PFM/强制 PWM 特性的 3-17V 2.0A 降压转换器
金额:¥
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