参数资料
| 型号： | TPS51217DSCR |
| 厂商： | Texas Instruments |
| 文件页数： | 1/29页 |
| 文件大小： | 0K |
| 描述： | IC REG CTRLR BUCK PWM 10-SON |
| 标准包装： | 1 |
| 系列： | D-CAP™ |
| PWM 型： | 控制器 |
| 输出数： | 1 |
| 频率 - 最大： | 368kHz |
| 占空比： | 89% |
| 电源电压： | 4.5 V ~ 6.5 V |
| 降压： | 是 |
| 升压： | 无 |
| 回扫： | 无 |
| 反相： | 无 |
| 倍增器： | 无 |
| 除法器： | 无 |
| Cuk： | 无 |
| 隔离： | 无 |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 10-WFDFN 裸露焊盘 |
| 包装： | 标准包装 |
| 其它名称： | 296-28856-6 |
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SLUS947B – JUNE 2009 – REVISED APRIL 2012
HIGH PERFORMANCE, SINGLE SYNCHRONOUS STEP-DOWN
CONTROLLER FOR NOTEBOOK POWER SUPPLY
Check for Samples: TPS51217
1
FEATURES
DESCRIPTION
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Wide Input Voltage Range: 3 V to 28 V
Output Voltage Range: 0.6 V to 2.6 V
Wide Output Load Range: 0 to 20A+
Built-in 0.5% 0.6 V Reference
D-CAP? Mode with 100-ns Load Step
Response
Adaptive On Time Control Architecture with
Fixed 340kHz Operation
Dynamic Output Voltage Change Capability
4700 ppm/°C R DS(on) Current Sensing
Internal 0.9-ms Voltage Servo Softstart
Pre-Charged Start-up Capability
Built-in Output Discharge
Power Good Output
Integrated Boost Switch
Built-in OVP/UVP/OCP
Thermal Shutdown (Non-latch)
SON-10 (DSC) Package
The TPS51217 is a small-sized single buck controller
with adaptive on-time D-CAP? mode. The device is
suitable for low output voltage, high current, PC
system power rail and similar point-of-load (POL)
power supply in digital consumer products. A small
package with minimal pin-count saves space on the
PCB, while a dedicated EN pin and pre-set frequency
minimize design effort required for new designs. The
skip-mode at light load condition, strong gate drivers
and low-side FET R DS(on) current sensing supports
low-loss and high efficiency, over a broad load range.
The TRAN pin provides freedom of masking
overvoltage protection, undervoltage protection and
power-good signal during the transition period of
dynamic output voltage change for modern GPU
power supply applications. The conversion input
voltage which is the high-side FET drain voltage
ranges from 3 V to 28 V and the output voltage
ranges from 0.6 V to 2.6 V. The device requires an
external 5-V supply. The TPS51217 is available in a
10-pin SON package specified from –40°C to 85°C.
APPLICATIONS
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Notebook Computers
I/O Supplies
System Power Supplies
TYPICAL APPLICATION CIRCUIT
V5IN
TPS51217
V IN
1 PGOOD
2 TRIP
VBST 10
DRVH 9
EN
3 EN
SW 8
VID1
VID0
4 VFB
5 TRAN
GND
V5IN 7
DRVL 6
V OUT
V OUT _GND
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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-CAP is a trademark of Texas Instruments.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright ? 2009–2012, Texas Instruments Incorporated
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相关代理商/技术参数 |
参数描述 |
|---|---|
| TPS51217DSCT | 功能描述:DC/DC 开关控制器 3-28V Input 20A Synch St Down Cntrlr RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
| TPS51217EVM-533 | 功能描述:电源管理IC开发工具 TPS51217 Eval Module 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 |
| TPS51218 | 制造商:TI 制造商全称:Texas Instruments 功能描述:HIGH PERFORMANCE, SINGLE SYNCHRONOUS STEP-DOWN CONTROLLER FOR NOTEBOOK POWER SUPPLY |
| TPS51218DSCR | 功能描述:DC/DC 开关控制器 3-28V In,20A Synch Step Down Cntrlr RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
| TPS51218DSCT | 功能描述:DC/DC 开关控制器 3-28V In,20A Synch Step Down Cntrlr RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
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