參數(shù)資料
型號(hào)： PM6675TR
廠商： STMICROELECTRONICS
元件分類(lèi)： 穩(wěn)壓器
英文描述： SWITCHING CONTROLLER, QCC24
封裝： 4 X 4 MM, VFQFPN-24
文件頁(yè)數(shù)： 17/50頁(yè)
文件大?。?/td> 782K
代理商： PM6675TR
Device description
PM6675
24/47
6.1.4
Mode-of-operation selection
Figure 11. VSEL and NOSKIP multifunction pin configurations
The PM6675 has been designed to satisfy the widest range of applications. The device is
provided with some multilevel pins which allow the user to choose the appropriate
configuration. The VSEL pin is used to firstly decide between fixed preset or adjustable
(user defined) output voltages.
When the VSEL pin is connected to +5V, the PM6675 sets the switching section output
voltage to 1.5V without the need of an external divider.
Applications requiring different output voltages can be managed by PM6675 simply setting
the adjustable mode. Consider that if the VSEL pin voltage is higher than 4V, the fixed
output mode is selected. When connecting an external divider to the VSEL pin, it is used as
negative input of the error amplifier and the output voltage is given by expression (20).
Equation 20
The output voltage can be set in the range from 0.6V to 3.3V.
The NOSKIP is the power saving algorithm selector: if tied to +5V, the forced-PWM (fixed
frequency) control is performed. If grounded or connected to VREF pin (1.237V reference
voltage), the Pulse-Skip or Non-Audible Pulse-Skip Modes are respectively selected.
PM6675
NOSKIP
VSEL
R9
R8
VOUT
+5V
VREF
8
R
9
R
8
R
6
.
0
VOUT
ADJ
+
=
相關(guān)PDF資料
PDF描述
PM6675 SWITCHING CONTROLLER, QCC24
PM6680ATR 0.4 A DUAL SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, QCC32
PM6680A 0.4 A DUAL SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, QCC32
PM6680TR 0.4 A DUAL SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, QCC32
PM6685TR DUAL SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, QCC32
相關(guān)代理商/技術(shù)參數(shù)
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PM6680 功能描述:DC/DC 開(kāi)關(guān)控制器 No Rsense dual StepDwn 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
PM6680_08 制造商:STMICROELECTRONICS 制造商全稱(chēng):STMicroelectronics 功能描述:No Rsense dual step-down controller with adjustable voltages for notebook system power
PM6680A 功能描述:DC/DC 開(kāi)關(guān)控制器 Dual sync 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
PM6680ATR 功能描述:DC/DC 開(kāi)關(guān)控制器 Dual sync 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
PM6680TR 功能描述:DC/DC 開(kāi)關(guān)控制器 No Rsense dual StepDwn 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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