电源管理 (PMIC)
Texas Instruments
3 A
SMD/SMT
HTSSOP-24
- 40 C to + 85 C
企业名:深圳市中立信电子科技有限公司
类型:贸易/代理/分销
电话:
0755-23956688
0755-23956688
手机:13410226883
联系人:叶先生/王先生
邮箱:sales@zlxele.com
地址:广东深圳深圳市福田区彩田路彩虹新都大厦彩荟阁7A室
1 Features
1• Wide Input Supply Voltage Range: 4.5 V to 18 V
• 0.8 V, ±1% Accuracy Reference
• Up to 2-A (Buck 1) and 3-A (Buck 2) Maximum
Continuous Output Loading Current
• Low-Power Pulse Skipping Mode to Achieve High
Light Load Efficiency
• Adjustable Switching Frequency
300 kHz to 1.4 MHz Set by External Resistor
• Startup With a Prebiased Output Voltage
• Dedicated Enable and Soft Start for Each Buck
• Peak Current-Mode Control With Simple
Compensation Circuit
• Cycle-by-Cycle Overcurrent Protection
• 180° Out-of-Phase Operation to Reduce Input
Capacitance and Power Supply Induced Noise
• Available in 24-Lead Thermally Enhanced
HTSSOP (PWP) and VQFN 4-mm × 4-mm (RGE)
Packages
2 Applications
• DTV
• DSL Modems
• Cable Modems
• Set-Top Boxes
• Car DVD Players
• Home Gateway and Access Point Networks
• Wireless Routers
3 Description
The TPS65270 is a monolithic, dual synchronous
buck regulator with a wide operating input voltage
that can operate in 5-V, 9-V, 12-V, or 15-V bus
voltages and battery chemistries. The converters are
designed to simplify its application while giving the
designer the option to optimize their usage according
to the target application.
TPS65270PWPRTPS65270PWPRTPS65270PWPRTPS65270PWPR
1功能
宽输入电源电压范围:4.5 V - 18v
•0.8 V,±1%的准确率参考
•多2- a (Buck 1)和3-A (Buck 2)
连续输出负载电流
•低功耗脉冲跳频模式,实现高功耗
轻载效率
•可调开关频率
外部电阻器设置300 kHz至1.4 MHz
•使用预偏输出电压启动
•为每个Buck提供专用的启动和软启动
•峰值电流模式控制简单
补偿电路
•循环过流保护
•180°异相位的操作来减少输入
电容和电源诱发噪声
•可提供24铅热增强
HTSSOP(PWP)和VQFN 4毫米×4毫米(RGE)
包
2应用程序
•数字电视
•DSL调制解调器
•电缆调制解调器
•机顶盒
•汽车DVD播放器
•家庭网关和接入点网络
•无线路由器
3描述
TPS65270是一个整体,双同步
具有宽工作输入电压的buck调节器
可以在5-V、9-V、12-V或15-V总线上运行
电压和电池化学反应。转换器是
设计来简化它的应用,同时给予
设计师的选择,以优化他们的使用
到目标应用程序。
企业名:深圳市中立信电子科技有限公司
类型:贸易/代理/分销
电话:
0755-23956688
0755-23956688
手机:13410226883
联系人:叶先生/王先生
邮箱:sales@zlxele.com
地址:广东深圳深圳市福田区彩田路彩虹新都大厦彩荟阁7A室