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參數資料
| 型號： | PM6670A |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 穩壓器 |
| 英文描述： | 1.4 A SWITCHING CONTROLLER, QCC24 |
| 封裝： | 4 X 4 MM, LEAD FREE, VFQFN-24 |
| 文件頁數： | 1/16頁 |
| 文件大小： | 277K |
| 代理商： | PM6670A |
Preliminary Data
This is preliminary information on a new product now in development or undergoing evaluation. Details are subject to
change without notice.
October 2006
Rev 1
1/16
16
PM6670A
Complete DDR2/3 memory power supplies controller
Features switching
■ Switching section (VDDQ)
– 4.5V to 36V input voltage range
– 0.9V, ±1% voltage reference
– 1.8V (DDR2) or 1.5V (DDR3) fixed output
voltages
– 0.9V to 2.6V adjustable output voltage
– 1.237V ±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 3ms
– Selectable pulse skipping at light load
– selectable No-Audible (33KHz) pulse skip
mode
– Ceramic output capacitors supported
– Output voltage ripple compensation
■ VTT LDO and VTTREF
– 2Apk LDO with foldback for VTT
– Remote VTT sensing
– High-Z VTT output in S3
– Ceramic output capacitors supported
– ±15mA Low noise buffered reference
Applications
■ DDR2/3 memory supply
■ Digital TV system
■ Handheld and PDAs
■ CPU and chipset I/O supplies
■ SSTL18, SSTL15 and HSTL bus termination
Description
The device PM6670A is a complete DDR2/3
power supply regulator designed to meet JEDEC
specifications.
It integrates a Constant On-Time (C.O.T.) buck
controller, a 2Apk sink/source Low Drop Out
regulator and a 15mA low noise buffered
reference.
The C.O.T. 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 2Apk 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.
VFQFPN-24 4x4
Order codes
Part number
Package
Packaging
PM6670A
VFQFPN-24 4x4 (Exposed Pad)
Tube
Obsolete
Product(s)
- Obsolete
Product(s)
相關PDF資料 |
PDF描述 |
|---|---|
| PM6670STR | 3 A SWITCHING CONTROLLER, QCC24 |
| PM6670S | 3 A SWITCHING CONTROLLER, QCC24 |
| PM6670TR | 1.4 A SWITCHING CONTROLLER, QCC24 |
| PM6670ATR | 1.4 A SWITCHING CONTROLLER, QCC24 |
| PM6670 | 1.4 A SWITCHING CONTROLLER, QCC24 |
相關代理商/技術參數 |
參數描述 |
|---|---|
| PM6670AS | 功能描述:DC/DC 開關控制器 DDR 2/3 Memory Pwr Cntrl RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數量:1 最大工作溫度:+ 125 C 安裝風格: 封裝 / 箱體:CPAK |
| PM6670ASTR | 功能描述:直流/直流開關調節器 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 輸出端數量: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
| PM6670ATR | 功能描述:直流/直流開關調節器 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 輸出端數量: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
| PM6670S | 功能描述:DC/DC 開關控制器 DDR 2/3 Memory Pwr Cntrl RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數量:1 最大工作溫度:+ 125 C 安裝風格: 封裝 / 箱體:CPAK |
| PM6670STR | 功能描述:DC/DC 開關控制器 Complete DDR2/3 Mem Pwr supply controllr RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數量:1 最大工作溫度:+ 125 C 安裝風格: 封裝 / 箱體:CPAK |
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