參數(shù)資料
型號： PM6670S
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)： 28/54頁
文件大?。?/td> 742K
代理商： PM6670S
Device description
PM6670S
34/54
Doc ID 14432 Rev 4
7.1.8
VDDQ output discharge
Active discharge of VDDQ output occurs when PM6670S enters the suspend-to-disk system
state (S3 and S5 tied to GND) and DSCG pin has been properly set.
Figure 39.
DSCG pin connection for discharge mode selection
The PM6670S allows the user to choose between fast discharge (tracking discharge), soft
discharge (non-tracking discharge) or no discharge modes. Voltage on DSCG multilevel pin
determines discharge mode as shown in Table 9 on page 34.
Tracking discharge allows the fastest discharge of all outputs but requires the LDOIN to be
self-supplied from VDDQ output voltage. When an external supply rail is connected to
LDOIN, it must be taken into account to avoid damage to the device. Discharge current (1 A)
flows through the LDOIN pin until the output has reached approximately 400 mV and then a
soft discharge completes the process by discharging the output with an internal 22
Ω switch.
Figure 40.
Fast discharge and soft discharge options
Table 9.
Discharge mode selection
DSCG voltage
Soft-End type
Description
VDSCG > 4.2 V
No discharge
All outputs left floating.
1 V< VDSCG < 3.5 V
Fast (tracking)
VDDQ and VTT actively discharged by LDO trough
LDOIN and VTT pins;
VDSCG < 0.5 V
Soft (non-tracking)
All outputs discharged by dedicated internal MOS.
PM6670
DSCG
+5V
VREF
PM6670
DSCG
+5V
VREF
PM6670S
VDDQ
VTT
400mV
Fast discharge
VDDQ
VTT
Soft discharge
VDDQ
VTT
400mV
Fast discharge
VDDQ
VTT
Soft discharge
相關(guān)PDF資料
PDF描述
PM6670TR 1.4 A SWITCHING CONTROLLER, QCC24
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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
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
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