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參數(shù)資料
| 型號： | ISL6444 |
| 廠商： | Intersil Corporation |
| 英文描述： | Dual PWM Controller with DDR Memory Option for Gateway Applications(帶DDR存儲器選項的網(wǎng)關(guān)專用雙PWM控制器) |
| 中文描述： | 雙PWM控制器的DDR網(wǎng)關(guān)應(yīng)用（帶的DDR存儲器選項的網(wǎng)關(guān)專用雙脈寬調(diào)制控制器內(nèi)存選項） |
| 文件頁數(shù)： | 14/19頁 |
| 文件大?。?/td> | 372K |
| 代理商： | ISL6444 |
14
FN9069.3
April 12, 2007
ISL6444 DC/DC Converter Application
Circuits
Figures 9 and 10 show application circuits of a dual channel
DC/DC converter for a notebook PC.
The power supply in Figure 9 provides +V2.5S and +V1.8S
voltages for memory and graphic interface chipset from
+5.0V to +24VDC battery voltage.
Figure 10 shows the power supply that provides +V2.5S and
+V1.8S voltages for memory and graphic interface chipset
from +5.0V system rail.
Figure 11 shows an application circuit for a single-output split
input power supply with current sharing for advanced
graphic card applications.
Figure 12 and 13 show application circuits of a complete
power solution for DDR memory that becomes a preferred
choice in modern computers.
The power supply shown in Figure 12 generates +2.5V
VDDQ voltage from a battery. The +1.25V VTT termination
voltage tracks VDDQ/2 and is derived from +2.5V VDDQ. To
complete the DDR memory power requirements, the +1.25V
reference voltage is also provided. The PG2 pin serves as
an output for the reference voltage in this mode.
Figure 13 depicts the DDR solution in the case where the 5V
system rail is used as a primary voltage source.
For detailed information on the circuit, including a Bill-of-
Materials and circuit board description, see Application Note
AN9995. Also see Intersil’s web site (http://www.intersil.com)
for the latest information.
FIGURE 9. DUAL OUTPUT APPLICATION CIRCUIT FOR ONE-STEP CONVERSION
+
DDR
+5.0-24V
IN
Q3
1/2 IRF7313
C7
0.1
μ
F
+V1_8
(2A)
VSEN2
UGATE2
PHASE2
ISL6444
+
C2
56
μ
F
C1
1
μ
F
R4
C9
330
μ
F
GND
3
5
9
25
2
13
10
20
PGND2
LGATE2
Q4
2/2 IRF7313
11
8
ISEN2
R2
2k
12
BOOT2
VIN
22
CR2
4
0.01
μ
F
19
C4
R6
+
1
0μ
F
C5
17
+5.0V
cc
6
VOUT2
EN2
OCSET2
Q1
+V2_5S
(3A)
VSEN1
UGATE1
PHASE1
+
R3
C8
330
μ
F
1/2 IRF7313
PGND1
LGATE1
Q2
ISEN1
R1
2k
C6
0.1
μ
F
BOOT1
CR1
0.01
μ
F
C3
R5
2/2 IRF7313
VOUT1
EN1
OCSET1
VCC
28
18
R7
R8
15
PG1
7
27
24
23
14
L1
10
μ
H
L2
10
μ
H
16
PG2/REF
21
SOFT1
SOFT2
26
GND
1
ISL6444
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| ISL6444CA | 功能描述:電流型 PWM 控制器 Dual with DDR Memory RoHS:否 制造商:Texas Instruments 開關(guān)頻率:27 KHz 上升時間: 下降時間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSSOP-14 |
| ISL6444CA-T | 功能描述:IC CONTROLLER DDR 28-QSOP RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 專用型 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,000 系列:- 應(yīng)用:電源，ICERA E400，E450 輸入電壓:4.1 V ~ 5.5 V 輸出數(shù):10 輸出電壓:可編程 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:42-WFBGA，WLCSP 供應(yīng)商設(shè)備封裝:42-WLP 包裝:帶卷 (TR) |
| ISL6444CAZ | 功能描述:IC CONTROLLER DDR 28-QSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 專用型 系列:- 標(biāo)準(zhǔn)包裝:43 系列:- 應(yīng)用:控制器，Intel VR11 輸入電壓:5 V ~ 12 V 輸出數(shù):1 輸出電壓:0.5 V ~ 1.6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:48-VFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:48-QFN（7x7） 包裝:管件 |
| ISL6444CAZT | 制造商:Intersil Corporation 功能描述: |
| ISL6444CAZ-T | 功能描述:IC CONTROLLER DDR 28-QSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 專用型 系列:- 標(biāo)準(zhǔn)包裝:43 系列:- 應(yīng)用:控制器，Intel VR11 輸入電壓:5 V ~ 12 V 輸出數(shù):1 輸出電壓:0.5 V ~ 1.6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:48-VFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:48-QFN（7x7） 包裝:管件 |
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