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參數(shù)資料
| 型號： | PM6670ASTR |
| 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)： | 1/53頁 |
| 文件大?。?/td> | 745K |
| 代理商： | PM6670ASTR |
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February 2010
Doc ID 14436 Rev 2
1/53
53
PM6670AS
Complete DDR2/3 memory power supply controller
Features
■ Switching section (VDDQ)
– 4.5 V to 36 V input voltage range
– 0.9 V, ±1% voltage reference
– 1.8 V (DDR2) or 1.5 V (DDR3) fixed output
voltages
– 0.9 V to 2.6 V adjustable output voltage
– 1.237 V ±1% reference voltage available
– Very fast load transient response using
constant-on-time control loop
–No RSENSE current sensing using low side
MOSFETs' RDS(ON)
– Negative current limit
– Latched OVP and UVP
– Soft-start internally fixed at 3 ms
– Selectable pulse skipping at light load
– selectable no-audible (33 kHz) pulse skip
mode
– Ceramic output capacitors supported
– Output voltage ripple compensation
■ VTT LDO and VTTREF
– 2 Apk LDO with foldback for VTT
– Remote VTT sensing
– High-Z VTT output in S3
– Ceramic output capacitors supported
– ±15 mA Low noise buffered reference
Applications
■ DDR2/3 memory supply
■ Digital TV system
■ SSTL18, SSTL15 and HSTL bus termination
Description
The device PM6670AS is a complete DDR2/3
power supply regulator designed to meet JEDEC
specifications.
It integrates a constant on-time (COT) buck
controller, a 2 Apk sink/source low drop out
regulator and a 15 mA low noise buffered
reference.
The COT architecture assures fast transient
response supporting both electrolytic and ceramic
output capacitors. An embedded integrator
control loop compensates the DC voltage error
due to the output ripple.
The 2 Apk sink/source linear regulator provides
the memory termination voltage with fast load
transient response.
The device is full compliant with system sleep
states S3 and S4/S5, providing LDO output high
impedance in Suspend-To-RAM and Tracking
Discharge of all outputs in Suspend-To-Disk.
Table 1.
Device summary
Order codes
Package
Packaging
PM6670AS
VFQFPN-24 4x4 (Exposed pad)
Tube
PM6670ASTR
Tape and reel
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| PM6670AS | 3 A SWITCHING CONTROLLER, QCC24 |
| PM6670A | 1.4 A SWITCHING CONTROLLER, QCC24 |
| PM6670STR | 3 A SWITCHING CONTROLLER, QCC24 |
| PM6670S | 3 A SWITCHING CONTROLLER, QCC24 |
| PM6670TR | 1.4 A SWITCHING CONTROLLER, QCC24 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PM6670ATR | 功能描述:直流/直流開關(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 |
| PM6670STR | 功能描述:DC/DC 開關(guān)控制器 Complete DDR2/3 Mem Pwr supply controllr 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 |
| PM6670TR | 功能描述:直流/直流開關(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 |
| PM6675 | 制造商:STMicroelectronics 功能描述: 制造商:STMicroelectronics 功能描述:LDO CNTRLR STDN 0.6V TO 3.3V/1.5V 24PIN VFQFPN - Rail/Tube |
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