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參數(shù)資料
| 型號： | TPS40002DGS |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | SWITCHING CONTROLLER, 690 kHz SWITCHING FREQ-MAX, PDSO10 |
| 封裝： | MSOP-10 |
| 文件頁數(shù)： | 1/13頁 |
| 文件大?。?/td> | 170K |
| 代理商： | TPS40002DGS |
TPS40000, TPS40001
TPS40002, TPS40003
SLUS507 – JANUARY 2002
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 Fixed-Frequency, 300-kHz or 600-kHz,
Voltage-Mode Control
D Source-Only Current or Source/Sink Current
D 10-Lead MSOP PowerPadt Package for
Higher Performance
APPLICATIONS
D Networking Equipment
D Telecom Equipment
D Base Stations
D Servers
D DSP Power
DESCRIPTION
The TPS4000x are controllers for low-voltage,
non-isolated synchronous buck regulators. These
controllers use a topside N-type MOSFET for the
primary buck switch. While a topside N-channel
does require a bootstrap circuit to be fully turned
on,
the
extra
complexity
is
more
than
compensated for by the fact that N-type devices
provide lower on-resistance for a given device
size and gate charge. The chip 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; for a
given converter power level, smaller FETs can be
used, or heat sinking can be reduced or even
eliminated.
1
ILIM
10
BOOT
2FB
9
HDRV
3
COMP
8
SW
4
SS/SD
7
VDD
5
GND
6
LDRV
TPS40000
UDG–01141
VIN
VOUT
PRODUCT
PREVIEW
PRODUCT PREVIEW information concerns products in the formative or
design phase of development. Characteristic data and other
specifications are design goals. Texas Instruments reserves the right to
change or discontinue these products without notice.
Copyright
2001, Texas Instruments Incorporated
PowerPAD
t and Predictive Gate Drivet are trademarks of Texas Instruments Incorporated.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| TPS40000DGS | SWITCHING CONTROLLER, 345 kHz SWITCHING FREQ-MAX, PDSO10 |
| TPS40004DGQR | SWITCHING CONTROLLER, 350 kHz SWITCHING FREQ-MAX, PDSO10 |
| 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 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TPS40003 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:LOW-INPUT VOLTAGE-MODE SYNCHRONOUS BUCK CONTROLLER |
| TPS40003DGQ | 功能描述:電壓模式 PWM 控制器 Low Input Synch Buck Cntrlr RoHS:否 制造商:Texas Instruments 輸出端數(shù)量:1 拓撲結(jié)構(gòu):Buck 輸出電壓:34 V 輸出電流: 開關(guān)頻率: 工作電源電壓:4.5 V to 5.5 V 電源電流:600 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:WSON-8 封裝:Reel |
| TPS40003DGQ | 制造商:Texas Instruments 功能描述:DC/DC BUCK CONTROLLER SMD 40003 |
| TPS40003DGQG4 | 功能描述:電壓模式 PWM 控制器 Lo Input Vltg Mode Synch Buck Cntrlr RoHS:否 制造商:Texas Instruments 輸出端數(shù)量:1 拓撲結(jié)構(gòu):Buck 輸出電壓:34 V 輸出電流: 開關(guān)頻率: 工作電源電壓:4.5 V to 5.5 V 電源電流:600 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:WSON-8 封裝:Reel |
| TPS40003DGQR | 功能描述:電壓模式 PWM 控制器 Lo Input Vltg Mode Synch Buck Cntrlr RoHS:否 制造商:Texas Instruments 輸出端數(shù)量:1 拓撲結(jié)構(gòu):Buck 輸出電壓:34 V 輸出電流: 開關(guān)頻率: 工作電源電壓:4.5 V to 5.5 V 電源電流:600 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:WSON-8 封裝:Reel |
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