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參數(shù)資料
| 型號(hào)： | PM6675 |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | SWITCHING CONTROLLER, QCC24 |
| 封裝： | 4 X 4 MM, VFQFPN-24 |
| 文件頁數(shù)： | 6/47頁 |
| 文件大?。?/td> | 650K |
| 代理商： | PM6675 |
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Device description
PM6675
14/47
6
Device description
The PM6675 combines a single high efficiency step-down controller and an independent
Low Drop-Out (LDO) linear regulator in the same package.
The switching controller section is a high-performance, pseudo-fixed frequency, Constant-
On-Time (COT) based regulator specifically designed for handling fast load transient over a
wide range of input voltages.
The switching section output can be easily set to a fixed 1.5V voltage without additional
components or adjusted in the 0.6V to 3.3V range using an external resistor divider. The
Switching Mode Power Supply (SMPS) can handle different modes of operation in order to
minimize noise or power consumption, depending on the application needs. Selectable low-
consumption and low-noise modes allow the highest efficiency and a 33kHz minimum
switching frequency respectively at light loads.
A loss less current sensing scheme, based on the Low-Side MOSFET's turn-on resistance,
avoids the need for an external sensing resistor.
The input of the LDO can be either the switching section output or a lower voltage rail in
order to reduce the total power dissipation. Linear regulator stability is achieved by filtering
its output with a ceramic capacitor (20
F or greater). The LDO linear regulator can sink and
source up to 2Apk.
Two fixed current limit (±1A-±2A) can be chosen.
An active Soft-End is independently performed on both the switching and the linear
regulators outputs when disabled.
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| PM6680ATR | 0.4 A DUAL SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, QCC32 |
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| PM6680TR | 0.4 A DUAL SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, QCC32 |
| PM6685TR | DUAL SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, QCC32 |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PM6675AS | 功能描述:DC/DC 開關(guān)控制器 DDR 2/3 Memory Pwr Cntrl 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 |
| PM6675ASTR | 功能描述:低壓差控制器 - LDO Complete DDR2/3 Mem Pwr supply controllr 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 |
| PM6675ATR | 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 |
| PM6675S | 功能描述:DC/DC 開關(guān)控制器 DDR 2/3 Memory Pwr Cntrl 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 |
| PM6675STR | 功能描述:低壓差控制器 - LDO Complete DDR2/3 Mem Pwr supply controllr 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 |
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