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| 型号： | TPS40020PWPRG4 |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 稳压器 |
| 英文描述： | 0.01 A SWITCHING CONTROLLER, 1100 kHz SWITCHING FREQ-MAX, PDSO16 |
| 封装： | GREEN, PLASTIC, HTSSOP-16 |
| 文件页数： | 1/36页 |
| 文件大小： | 724K |
| 代理商： | TPS40020PWPRG4 |
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TPS40020
TPS40021
SLUS535D MARCH 2003 REVISED JULY 2007
ENHANCED, LOW INPUT VOLTAGEMODE
SYNCHRONOUS BUCK CONTROLLER
8
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 Drive N-Channel MOSFET
Drivers for Higher Efficiency
D Externally Adjustable Soft-Start and Short
Circuit Current Limit
D Programmable Fixed-Frequency
100 KHz-to-1 MHz Voltage-Mode Control
D Source-Only Current or Source/Sink Current
D Quick Response Output Transient
Comparators with Power Good Indication
Provide Output Status
D 16-Pin PowerPAD Package
APPLICATIONS
D Networking Equipment
D Telecom Equipment
D Base Stations
D Servers
D DSP Power
DESCRIPTION
The TPS4002x family of dc-to-dc controllers are designed
for non-isolated synchronous buck regulators, providing
enhanced operation and design flexability through user
programmability.
The TPS4002x utilizes a proprietary Predictive Gate
Drive
technology to minimize the diode conduction
losses associated with the high-side and synchronous
rectifier N-channel MOSFET transistions. The integrated
charge pump with boost circuit provides a regulated 5-V
gate drive for both the high side and synchronous rectifier
N-channel MOSFETs. The use of the Predictive Gate
Drive
technology and charge pump/boost circuits
combine to provide a highly efficient, smaller and less
expensive converter.
Design flexibility is provided through user programmability
of such functions as: operating frequency, short circuit
current detection thresholds, soft-start ramp time, and
external
synchronization
frequency.
The
operating
frequency is programmable using a single resistor over a
frequency range of 100 kHz to 1 MHz. Higher operating
frequencies yield smaller component values for a given
converter power level as well as faster loop closure.
5
13
12
16
15
1
2
3
ILIM/
SYNC
VDD
OSNS
COMP
HDRV
BOOT2
PVDD
LDRV
VDD 2.25 V 5.5 V
4
FB
11
BOOT1
TPS40020
6
SS/SD
7RT
8
SGND
VOUT
14
SW
PGND
10
PWRGD 9
VDD
VOUT
UDG02094
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.
PowerPAD
and Predictive Gate Drive are trademarks of Texas Instruments.
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.
www.ti.com
Copyright
2004, Texas Instruments Incorporated
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相关代理商/技术参数 |
参数描述 |
|---|---|
| TPS40021 | 制造商:TI 制造商全称:Texas Instruments 功能描述:ENHANCED LOW INPUT VOLTAGE MODE SYNCHRONOUS BUCK CONTROLLER |
| TPS40021EVM-001 | 功能描述:电源管理IC开发工具 High-Eff Synch Buck Conv 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 |
| TPS40021MPWPEP | 功能描述:DC/DC 开关控制器 Enhanced Prod Synch Buck Controller 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 |
| TPS40021MPWPREP | 功能描述:DC/DC 开关控制器 Enhanced Prod Synch Buck Controller 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 |
| TPS40021PWP | 功能描述:DC/DC 开关控制器 Low Input Sync Buck Cntrlr source/sink 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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