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| 型号： | TPS40004DGQR |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 稳压器 |
| 英文描述： | SWITCHING CONTROLLER, 350 kHz SWITCHING FREQ-MAX, PDSO10 |
| 封装： | PLASTIC, MSOP-10 |
| 文件页数： | 1/27页 |
| 文件大小： | 663K |
| 代理商： | TPS40004DGQR |
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TPS40000, TPS40001
TPS40002, TPS40003
TPS40004, TPS40005
SLUS507D JANUARY 2002 REVISED NOVEMBER 2005
LOW INPUT VOLTAGEMODE
SYNCHRONOUS BUCK CONTROLLER
1
www.ti.com
FEATURES
D Operating Input Voltage 2.25 V to 5.5 V
D Output Voltage as Low as 0.7 V
D 1% Internal 0.7 V Reference
D Predictive Gate Drivet N-Channel MOSFET
Drivers for Higher Efficiency
D Externally Adjustable Soft-Start and
Overcurrent Limit
D Source-Only Current or Source/Sink Current
D Versions for Starting Into VOUT Pre-Bias
D 10-Lead MSOP PowerPadt Package for
Higher Performance
D Thermal Shutdown
D Internal Boostrap Diode
D Fixed-Frequency, Voltage-Mode Control
TPS40000/1/4
300-kHz
TPS40002/3/5
600-kHz
SIMPLIFIED APPLICATION DIAGRAM
APPLICATIONS
D Networking Equipment
D Telecom Equipment
D Base Stations
D Servers
D DSP Power
D Power Modules
DESCRIPTION
The TPS4000x are controllers for low-voltage,
non-isolated synchronous buck regulators. These
controllers drive an N-channel MOSFET for the
primary buck switch, and an N-channel MOSFET
for the synchronous rectifier switch, thereby
achieving very high-efficiency power conversion. In
addition, the device controls the delays from main
switch off to rectifier turn-on and from rectifier
turn-off to main switch turn-on in such a way as to
minimize diode losses (both conduction and
recovery) in the synchronous rectifier with TI’s
proprietary Predictive Gate Drive
t technology. The
reduction in these losses is significant and increases
efficiency. For a given converter power level, smaller
FETs can be used, or heat sinking can be reduced
or even eliminated.
UDG01141
VIN
VOUT
1
ILIM
10
BOOT
2FB
9
HDRV
3
COMP
8
SW
4
SS/SD
7
VDD
5
GND
6
LDRV
TPS40000
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
Copyright
2005, Texas Instruments Incorporated
PowerPAD
t and Predictive Gate Drivet are trademarks of Texas Instruments Incorporated.
相关PDF资料 |
PDF描述 |
|---|---|
| TPS40002DGQ | SWITCHING CONTROLLER, 700 kHz SWITCHING FREQ-MAX, PDSO10 |
| TPS40003DGQRG4 | SWITCHING CONTROLLER, 700 kHz SWITCHING FREQ-MAX, PDSO10 |
| TPS40003DGQR | SWITCHING CONTROLLER, 700 kHz SWITCHING FREQ-MAX, PDSO10 |
| TPS40000DGQ | SWITCHING CONTROLLER, 350 kHz SWITCHING FREQ-MAX, PDSO10 |
| TPS40004DGQG4 | SWITCHING CONTROLLER, 350 kHz SWITCHING FREQ-MAX, PDSO10 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| TPS40004DGQRG4 | 功能描述:电压模式 PWM 控制器 Lo Input 300kHz Freq Synch Buck Cntrlr RoHS:否 制造商:Texas Instruments 输出端数量:1 拓扑结构:Buck 输出电压:34 V 输出电流: 开关频率: 工作电源电压:4.5 V to 5.5 V 电源电流:600 uA 最大工作温度:+ 125 C 最小工作温度:- 40 C 封装 / 箱体:WSON-8 封装:Reel |
| TPS40005 | 制造商:TI 制造商全称:Texas Instruments 功能描述:LOW-INPUT VOLTAGE-MODE SYNCHRONOUS BUCK CONTROLLER |
| TPS40005DGQ | 功能描述:电压模式 PWM 控制器 Lo Input 600kHz Freq Synch Buck Cntrlr RoHS:否 制造商:Texas Instruments 输出端数量:1 拓扑结构:Buck 输出电压:34 V 输出电流: 开关频率: 工作电源电压:4.5 V to 5.5 V 电源电流:600 uA 最大工作温度:+ 125 C 最小工作温度:- 40 C 封装 / 箱体:WSON-8 封装:Reel |
| TPS40005DGQG4 | 功能描述:电压模式 PWM 控制器 Lo Input 600kHz Freq Synch Buck Cntrlr RoHS:否 制造商:Texas Instruments 输出端数量:1 拓扑结构:Buck 输出电压:34 V 输出电流: 开关频率: 工作电源电压:4.5 V to 5.5 V 电源电流:600 uA 最大工作温度:+ 125 C 最小工作温度:- 40 C 封装 / 箱体:WSON-8 封装:Reel |
| TPS40005DGQR | 功能描述:电压模式 PWM 控制器 Lo Input 600kHz Freq Synch Buck Cntrlr RoHS:否 制造商:Texas Instruments 输出端数量:1 拓扑结构:Buck 输出电压:34 V 输出电流: 开关频率: 工作电源电压:4.5 V to 5.5 V 电源电流:600 uA 最大工作温度:+ 125 C 最小工作温度:- 40 C 封装 / 箱体:WSON-8 封装:Reel |
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