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| 型号： | TPS40022PWPR |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 稳压器 |
| 英文描述： | 0.01 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PDSO16 |
| 封装： | POWERPAD, PLASTIC, HTSSOP-16 |
| 文件页数： | 1/29页 |
| 文件大小： | 337K |
| 代理商： | TPS40022PWPR |
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TPS40020
TPS40021
TPS40022
SLUS535 – MARCH 2003
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
Overcurrent 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 ( JA = 2°C/W)
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, overcurrent 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
UDG–02094
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.
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
2002, Texas Instruments Incorporated
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相关代理商/技术参数 |
参数描述 |
|---|---|
| TPS40040 | 制造商:TI 制造商全称:Texas Instruments 功能描述:LOW PIN COUNT, LOW VIN (2.5 V TO 5.5 V) SYNCHRONOUS BUCK DC-TO-DC CONTROLLER WITH ENABLE |
| TPS40040DRBR | 功能描述:DC/DC 开关控制器 Lo Vin Synch Buck DC/DC 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 |
| TPS40040DRBRG4 | 功能描述:DC/DC 开关控制器 Lo Vin Synch Buck DC/DC 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 |
| TPS40040DRBT | 功能描述:DC/DC 开关控制器 Low Vin Synch Buck DC/DC 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 |
| TPS40040DRBT | 制造商:Texas Instruments 功能描述:Peak Reflow Compatible (260 C):Yes |
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