- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄220077 > TPS61087DSCR (TEXAS INSTRUMENTS INC) 4.8 A SWITCHING REGULATOR, 1500 kHz SWITCHING FREQ-MAX, PDSO10 PDF資料下載
參數(shù)資料
| 型號： | TPS61087DSCR |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 4.8 A SWITCHING REGULATOR, 1500 kHz SWITCHING FREQ-MAX, PDSO10 |
| 封裝： | GREEN, PLASTIC, SON-10 |
| 文件頁數(shù)： | 29/30頁 |
| 文件大?。?/td> | 964K |
| 代理商： | TPS61087DSCR |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁當(dāng)前第29頁第30頁
COMP
FB
GM Amplifier
Vref
SW
GateDriverof
Power
Transistor
IN
SS
PWM
Generator
Currentlimit
and
SoftStart
t
Generator
OFF
t
ON
PGND
BiasVref = 1.238V
UVLO
ThermalShutdown
AGND
EN
FREQ
VIN
VS
SLVS821B – MAY 2008 – REVISED MARCH 2010
www.ti.com
DETAILED DESCRIPTION
Figure 13. Block Diagram
The boost converter is designed for output voltages up to 18.5 V with a switch peak current limit of 3.2 A
minimum. The device, which operates in a current mode scheme with quasi-constant frequency, is externally
compensated for maximum flexibility and stability. The switching frequency is selectable between 650 kHz and
1.2 MHz and the minimum input voltage is 2.5 V. To limit the inrush current at start-up a soft-start pin is
available.
TPS61087 boost converter’s novel topology using adaptive off-time provides superior load and line transient
responses and operates also over a wider range of applications than conventional converters.
The selectable switching frequency offers the possibility to optimize the design either for the use of small sized
components (1.2 MHz) or for higher system efficiency (650 kHz). However, the frequency changes slightly
because the voltage drop across the rDS(on) has some influence on the current and voltage measurement and
thus on the on-time (the off-time remains constant).
The converter operates in continuous conduction mode (CCM) as soon as the input current increases above half
the ripple current in the inductor, for lower load currents it switches into discontinuous conduction mode (DCM). If
the load is further reduced, the part starts to skip pulses to maintain the output voltage.
8
Copyright 2008–2010, Texas Instruments Incorporated
Product Folder Link(s): TPS61087
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| TC54VC5502EMB713 | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PSSO3 |
| TPS65120RGTT | 0.2 A SWITCHING REGULATOR, 4000 kHz SWITCHING FREQ-MAX, PQCC16 |
| TPS2066DGN | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8 |
| TPS2552DBV-1 | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO6 |
| TPS54614PWPRG4 | 12 A SWITCHING REGULATOR, 762 kHz SWITCHING FREQ-MAX, PDSO28 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TPS61087DSCT | 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 18.5V,3.2A,650kHz DC-DC Converter RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關(guān)頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT |
| TPS61087EVM-317 | 功能描述:電源管理IC開發(fā)工具 TPS61087 Eval Mod RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類型:Battery Management 工具用于評估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V |
| TPS61087-Q1 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:650 kHz/1.2 MHz, 18.5 V STEP-UP DC-DC CONVERTER WITH 3.2 A SWITCH |
| TPS61087QDRCRQ1 | 功能描述:直流/直流開關(guān)調(diào)節(jié)器 AC 18.5V,3.2A,650kHz 1.2MHz Step-Up RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
| TPS61087QWDRCRQ1 | 功能描述:Boost Switching Regulator IC Positive Adjustable 3V 1 Output 3.2A (Switch) 10-VFDFN Exposed Pad 制造商:texas instruments 系列:汽車級，AEC-Q100 包裝:剪切帶（CT） 零件狀態(tài):新產(chǎn)品 功能:升壓 輸出配置:正 拓?fù)?升壓 輸出類型:可調(diào)式 輸出數(shù):1 電壓 - 輸入（最小值）:2.5V 電壓 - 輸入（最大值）:6V 電壓 - 輸出（最小值/固定）:3V 電壓 - 輸出（最大值）:18.5V 電流 - 輸出:3.2A（開關(guān)） 頻率 - 開關(guān):650kHz，1.2MHz 同步整流器:無 工作溫度:-40°C ~ 125°C（TA） 安裝類型:表面貼裝 封裝/外殼:10-VFDFN 裸露焊盤 供應(yīng)商器件封裝:10-VSON（3x3） 標(biāo)準(zhǔn)包裝:1 |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。