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參數(shù)資料
| 型號(hào)： | PM6652TR |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | SWITCHING CONTROLLER, 600 kHz SWITCHING FREQ-MAX, QCC32 |
| 封裝： | 5 X 5 MM, 1 MM HEIGHT, 0.50 MM PITCH, ROHS COMPLIANT, VFQFPN-32 |
| 文件頁(yè)數(shù)： | 24/53頁(yè) |
| 文件大小： | 2519K |
| 代理商： | PM6652TR |
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Device description
PM6652
30/53
Doc ID 16867 Rev 3
Figure 26.
PM6652 droop function
8.6
Voltage dynamic (VID) transitions
The integrated 7 bit digital-to-analog converter (DAC) can change its output voltage, with
12.5 mV step, following Table 6 on page 16 and Table 7 on page 18. After a VID change, the
converter starts an internal bit rolling in order to ramp-up (or ramp-down) the VDAC output
with a minimum voltage slew-rate as declared in Table 8 on page 28. During this time and
for a blanking time (typ.30 s) after the transition, the under voltage and the variable over
voltage protections are disabled.
Given the previously described control loop, the switching regulator output always tracks the
VDAC reference, with the same voltage slew-rate.
In GFX render IMVP6.5 mode, if the DPRSLPVR control signal is asserted (DPRSLPVR =
SVCC) the render suspend state is entered, enabling the pulse-skipping control mode. This
high efficiency algorithm allows the low-side MOSFET turning off when the inductor's
current is zero; so doing the switching frequency becomes fully load-dependent, ensuring a
Figure 27.
GFX supply - VID step, skip mode
Figure 28.
CPU IMVP6.5 - VID step, skip mode
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| PM6670 | 制造商:STMicroelectronics 功能描述: |
| PM6670AS | 功能描述:DC/DC 開(kāi)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(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 |
| PM6670ASTR | 功能描述:直流/直流開(kāi)關(guān)調(diào)節(jié)器 Complete DDR2/3 Mem Pwr supply controllr RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開(kāi)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 |
| PM6670ATR | 功能描述:直流/直流開(kāi)關(guān)調(diào)節(jié)器 Complete DDR2/3 Mem Pwr supply controllr RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開(kāi)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 |
| PM6670S | 功能描述:DC/DC 開(kāi)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(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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