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參數(shù)資料
| 型號(hào)： | PM6675STR |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 3 A SWITCHING CONTROLLER, QCC24 |
| 封裝： | 4 X 4 MM, LEAD FREE, VFQFPN-24 |
| 文件頁數(shù)： | 24/53頁 |
| 文件大?。?/td> | 2632K |
| 代理商： | PM6675STR |
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Device description
PM6675S
30/53
7.1.4
Mode-of-operation selection
Figure 39.
VSEL and NOSKIP multifunction pin configurations
The PM6675S 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 +5 V, the PM6675S sets the switching section output
voltage to 1.5 V without the need of an external divider.
Applications requiring different output voltages can be managed by PM6675S simply setting
the adjustable mode. Consider that if the VSEL pin voltage is higher than 4 V, 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 0.6 V to 3.3 V.
The NOSKIP is the power saving algorithm selector: if tied to +5 V, the forced-PWM (fixed
frequency) control is performed. If grounded or connected to VREF pin (1.237 V reference
voltage), the Pulse-Skip or Non-Audible Pulse-Skip Modes are respectively selected.
PM6675
NOSKIP
VSEL
R9
R8
VOUT
+5V
VREF
PM6675S
8
R
9
R
8
R
6
.
0
VOUT
ADJ
+
=
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PDF描述 |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PM6675TR | 功能描述:低壓差控制器 - LDO High eff SD CNRL RoHS:否 制造商:Micrel 最大輸入電壓:5.5 V 輸出電壓:Adjustable 輸出電流:10 mA 負(fù)載調(diào)節(jié): 輸出類型:Adjustable, Fixed 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOT-23-6 |
| PM6680 | 功能描述:DC/DC 開關(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: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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