參數(shù)資料
型號： TPS40303DRCT
廠商： TEXAS INSTRUMENTS INC
元件分類： 穩(wěn)壓器
英文描述： SWITCHING CONTROLLER, 330 kHz SWITCHING FREQ-MAX, PDSO10
封裝： 3 X 3 MM, GREEN, PLASTIC, SON-10
文件頁數(shù)： 1/31頁
文件大?。?/td> 1798K
代理商： TPS40303DRCT
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
Check for Samples :TPS40303 TPS40304 TPS40305
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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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TPS40304 制造商:TI 制造商全稱:Texas Instruments 功能描述:3-V TO 20-V INPUT SYNCHRONOUS BUCK CONTROLLER
TPS40304A 制造商:TI 制造商全稱:Texas Instruments 功能描述:3-V TO 20-V INPUT SYNCHRONOUS BUCK CONTROLLER
TPS40304A_1 制造商:TI 制造商全稱:Texas Instruments 功能描述:3-V TO 20-V INPUT SYNCHRONOUS BUCK CONTROLLER
TPS40304ADRCR 功能描述:DC/DC 開關(guān)控制器 3V-20V Wide Inp Sync Buck Controller RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK
TPS40304ADRCT 功能描述:DC/DC 開關(guān)控制器 3V-20V Wide Inp Sync Buck Controller RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK
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