Texas Instruments
开关稳压器
SMD/SMT
SO-PowerPad-8
0.76 V to 7 V
2 A
1 Output
18 V
Buck
4.5 V
700 kHz
- 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 3 Description
The TPS54227 device is an adaptive ON-time D1•
D-CAP2™ Mode Enables Fast Transient
CAP2 mode synchronous buck converter. The Response TPS54227 enables system designers to complete the
• Low Output Ripple and Allows Ceramic Output bus regulators for a suite of various end equipment
Capacitor with a cost-effective, low component count, low
• Wide V standby current solution. The main control loop for IN Input Voltage Range: 4.5 V to 18 V
the TPS54227 uses the D-CAP2 mode control which • Output Voltage Range: 0.76 V to 7 V
provides a fast transient response with no external
• Highly-Efficient Integrated FETs Optimized compensation components. The TPS54227 also has
for Lower Duty Cycle Applications a proprietary circuit that enables the device to adopt
– 155 mΩ (High-Side) and 108 mΩ (Low-Side) to both low equivalent series resistance (ESR) output
capacitors, such as POSCAP or SP-CAP, and ultra- • High Efficiency, Less Than 10 μA at Shutdown
low ESR ceramic capacitors. The device operates
• High Initial Bandgap Reference Accuracy from 4.5-V to 18-V VIN input. The output voltage can
• Adjustable Soft-Start be programmed between 0.76 V and 7 V. The device
• Prebiased Soft-Start also features an adjustable soft-start time. The
TPS54227 is available in the 8-pin HSOP package
• 700-kHz Switching Frequency (fSW)
and 10-pin VSON, and is designed to operate from
• Cycle-By-Cycle Overcurrent Limit –40°C to 85°C.
TPS54227DDARTPS54227DDARTPS54227DDARTPS54227DDAR1特征3描述
TPS54227设备是一种自适应准时D1•
D-CAP2™模式使快速瞬态
CAP2模式同步降压转换器。响应TPS54227使系统设计人员能够完成
•低输出纹波,允许陶瓷输出母线调节器为一套不同的终端设备
电容器具有性价比高,元器件数量少,成本低
•宽V备用电流解决方案。输入电压范围内的主控制回路:4.5 V ~ 18v
TPS54227采用D-CAP2模式控制,输出电压范围:0.76 V至7 V
提供没有外部响应的快速瞬态响应
•高效集成FETs优化补偿组件。TPS54227也有
对于低占空比应用,使设备能够采用的专用电路
155年- 155年mΩ(高端)和mΩ(下部)都低等效串联电阻(ESR)输出
电容器,如POSCAP或SP-CAP和超效率高,不到10μA关闭
低ESR陶瓷电容器。设备操作
•高初始带隙参考精度从4.5 v到18 v VIN输入。输出电压罐
•可调软启动程序在0.76 V到7 V之间。该设备
•预偏软启动还具有可调软启动时间。的
TPS54227在8针HSOP包中可用
•700-kHz开关频率(fSW)
和10针VSON,并设计从操作
•逐周期过载限制-40°C到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