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参数资料
| 型号： | TPS54227DDA |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 稳压器 |
| 英文描述： | 4.7 A SWITCHING REGULATOR, 700 kHz SWITCHING FREQ-MAX, PDSO8 |
| 封装： | PLASTIC, MS-012BA, SOP-8 |
| 文件页数： | 1/19页 |
| 文件大小： | 323K |
| 代理商： | TPS54227DDA |
TPS54227DDA
100
s/div
m
Vout (50 mV/div)
Iout (1 A/div)
SLVSAU2
– MAY 2011
4.5V to 18V Input, 2-A SYNCHRONOUS STEP DOWN (SWIFTTM )
CONVERTER
Check for Samples: TPS54227
1
FEATURES
DESCRIPTION
The TPS54227 is an adaptive on-time D-CAP2
23
D-CAP2
Mode Enables Fast Transient
mode synchronous buck converter. TheTPS54227
Response
enables system designers to complete the suite of
Low Output Ripple and Allows Ceramic Output
various end equipment
’s power bus regulators with a
Capacitor
cost effective, low component count, low standby
current solution. The main control loop for the
Wide VIN Input Voltage Range: 4.5 V to 18 V
TPS54227 uses the D-CAP2
mode control which
Output Voltage Range: 0.76 V to 7.0 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 m (High Side) and 108 m (Low Side)
to both low equivalent series resistance (ESR) output
capacitors, such as POSCAP or SP-CAP, and
High Efficiency, Less Than 10
μA at Shutdown
ultra-low
ESR
ceramic
capacitors.
The
device
High Initial Bandgap Reference Accuracy
operates from 4.5-V to 18-V VIN input. The output
Adjustable Soft Start
voltage can be programmed between 0.76 V and 7 V.
The device also features an adjustable soft start time.
Pre-Biased Soft Start
The TPS54227 is available in the 8-pin DDA
700-kHz Switching Frequency (fSW)
package, and designed to operate from
–40°C to
Cycle By Cycle Over Current Limit
85
°C.
APPLICATIONS
Wide Range of Applications for Low Voltage
System
– Digital TV Power Supply
– High Definition Blu-ray Disc Players
– Networking Home Terminal
– Digital Set Top Box (STB)
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
2
D-CAP2 is a trademark of Texas Instruments.
3
Blu-ray Disc is a trademark of Blu-ray Disc Association.
PRODUCTION DATA information is current as of publication date.
Copyright
2011, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| TPS54227DDAR | 功能描述:直流/直流开关调节器 4.5-18Vin,2A Sync Step Down Cnvrtr RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5 |
| TPS54227DRCR | 制造商:Texas Instruments 功能描述:IC REG BUCK SYNC ADJ 2A 10SON 制造商:Texas Instruments 功能描述:2A Single Sync DC/DC converter |
| TPS54227DRCT | 制造商:Texas Instruments 功能描述:2A SINGLE SYNC DC/DC CONVERTER - Tape and Reel 制造商:Texas Instruments 功能描述:2A SINGLE SYNC DC/DC CONVERTER - Cut TR (SOS) 制造商:Texas Instruments 功能描述:IC REG BUCK SYNC ADJ 2A 10SON 制造商:Texas Instruments 功能描述:IC SYNC STEP DOWN 700KHZ SO 制造商:Texas Instruments 功能描述:IC, SYNC STEP DOWN, 700KHZ, SON-10 制造商:Texas Instruments 功能描述:Voltage Regulators - Switching Regulators 4.5-18Vin,2A Sync SD Cnvrtr 制造商:Texas Instruments 功能描述:IC, SYNC STEP DOWN, 700KHZ, SON-10, Primary Input Voltage:18V, No. of Outputs:1, 制造商:Texas Instruments 功能描述:2A Single Sync DC/DC converter |
| TPS54227EVM-686 | 功能描述:电源管理IC开发工具 TPS54227 Eval Mod RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V |
| TPS54228 | 制造商:TI 制造商全称:Texas Instruments 功能描述:4.5V to 18V Input, 2-A Synchronous Step-Down SWIFT |
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