參數(shù)資料
型號(hào)： L6730TR
廠商： STMICROELECTRONICS
元件分類(lèi)： 穩(wěn)壓器
英文描述： 20 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PDSO20
封裝： HTSSOP-20
文件頁(yè)數(shù)： 7/52頁(yè)
文件大?。?/td> 1569K
代理商： L6730TR
L6730 - L6730B
Device description
Doc ID 11938 Rev 3
15/52
5.2
Internal LDO
An internal LDO supplies the internal circuitry of the device. The input of this stage is the
VCC pin and the output (5 V) is the VCCDR pin (see Figure 5).
5.3
Bypassing the LDO to avoid the voltage drop with low Vcc
The LDO can be by passed by providing 5 V voltage directly to VCCDR. In this case Vcc and
VCCDR pins must be shorted together as shown in Figure 6. VCCDR pin must be filtered with
at least 1
μF capacitor to sustain the internal LDO during the recharge of the bootstrap
capacitor. VCCDR also represents a voltage reference for Tmask pin, S/O/U pin (L6730) or
CC/O/U pin (L6730B) and PGOOD pin (see Table 4: Pin connection).
If Vcc
≈ 5 V the internal LDO works in dropout with an output resistance of about 1 .
The maximum LDO output current is about 100 mA, and so the output voltage drop can be
100 mV. The LDO can be bypassed to avoid thi
s.
Figure 5.
LDO block diagram
LDO
4.5V
÷14V
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
L6731B 功能描述:開(kāi)關(guān)變換器、穩(wěn)壓器與控制器 Adj. Step-Down w/ Synch Rectification RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開(kāi)關(guān)頻率:1 MHz 工作溫度范圍: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel
L6731BTR 功能描述:IC CTRLR ADJ STEP DOWN 16-TSSOP RoHS:是 類(lèi)別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 專用型 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,000 系列:- 應(yīng)用:電源，ICERA E400，E450 輸入電壓:4.1 V ~ 5.5 V 輸出數(shù):10 輸出電壓:可編程 工作溫度:-40°C ~ 85°C 安裝類(lèi)型:表面貼裝 封裝/外殼:42-WFBGA，WLCSP 供應(yīng)商設(shè)備封裝:42-WLP 包裝:帶卷 (TR)
L6731D 功能描述:DC/DC 開(kāi)關(guān)控制器 Adjustable Step Down Controller RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開(kāi)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
L6731DTR 功能描述:DC/DC 開(kāi)關(guān)控制器 Adjustable Step Down Controller RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開(kāi)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
L6732 功能描述:DC/DC 開(kāi)關(guān)控制器 Adjustable Step Down Controller RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開(kāi)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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