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| 型号： | TPS40304DRCR |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 稳压器 |
| 英文描述： | SWITCHING CONTROLLER, 660 kHz SWITCHING FREQ-MAX, PDSO10 |
| 封装： | 3 X 3 MM, GREEN, PLASTIC, SON-10 |
| 文件页数： | 1/31页 |
| 文件大小： | 1798K |
| 代理商： | TPS40304DRCR |
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5
4
3
2
6
7
8
9
BOOT
HDRV
SW
LDRV/OC
FB
COMP
PGOOD
EN/SS
TPS4030x
1
10
BP
VDD
PAD
V
IN
SD
V
OUT
V
IN
UDG-09158
V
OUT
GND
www.ti.com
SLUS964 – NOVEMBER 2009
3-V TO 20-V INPUT SYNCHRONOUS BUCK CONTROLLER
1
FEATURES
CONTENTS
Input Voltage Range from 3 V to 20 V
2
300 KHz (TPS40303), 600 KHz (TPS40304) and
3
1.2 MHz (TPS40305) Switching Frequencies
8
High- and Low-Side FET RDS(on) Current
10
Sensing
14
Programmable Thermally Compensated OCP
24
Levels
X
Programmable Soft-Start
600 mV, 1% Reference Voltage
APPLICATIONS
Voltage Feed-Forward Compensation
POL Modules
Supports Pre-Biased Output
Printer
Frequency Spread Spectrum
Digital TV
Thermal Shutdown Protection at 145°C
Telecom
10-Pin 3 mm × 3 mm SON Package with
Ground Connection to Thermal Pad
DESCRIPTION
The TPS4030x is a family of cost-optimized synchronous buck controllers that operate from 3-V to 20-V input.
The controller implements a voltage-mode control architecture with input-voltage feed-forward compensation that
responds instantly to input voltage change. The switching frequency is fixed at 300 KHz, 600 KHz or 1.2 MHz.
Frequency Spread Spectrum feature adds dither to the switching frequency, significantly reducing the peak EMI
noise and making it much easier to comply with EMI standards.
The TPS4030x offers design with a variety of user programmable functions, including soft-start, Over- Current
Protection (OCP) levels, and loop compensation.
OCP level may be programmed by a single external resistor connected from LDRV pin to circuit ground. During
initial power on, the TPS4030x enters a calibration cycle, measures the voltage at the LDRV pin, and sets an
internal OCP voltage level. During operation, the programmed OCP voltage level is compared to the voltage drop
across the low side FET when it is on to determine whether there is an overcurrent condition. The TPS4030x
then enters a shutdown and restart cycle until the fault is removed.
SIMPLIFIED APPLICATION DIAGRAM
1
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.
PRODUCTION DATA information is current as of publication date.
Copyright 2009, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| TPS40304DRCT | 功能描述:DC/DC 开关控制器 3-20V Wide Input Synch Buck 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 |
| TPS40304DRCT | 制造商:Texas Instruments 功能描述:Synchronous Buck Controller IC 制造商:Texas Instruments 功能描述:IC, SYNC BUCK CONTROLLER, SON-10 |
| TPS40304EVM-353 | 功能描述:电源管理IC开发工具 Eval with NexFET Pwr MOSFETs 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 |
| TPS40305 | 制造商:TI 制造商全称:Texas Instruments 功能描述:3-V TO 20-V INPUT SYNCHRONOUS BUCK CONTROLLER |
| TPS40305DRCR | 功能描述:DC/DC 开关控制器 3-20V Wide Input Sync 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 |
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