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參數(shù)資料
| 型號： | EL7583IR-T7 |
| 廠商： | INTERSIL CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 3-Channel DC-DC Converter |
| 中文描述： | 1.75 A SWITCHING REGULATOR, 1000 kHz SWITCHING FREQ-MAX, PDSO20 |
| 封裝： | MO-153, TSSOP-20 |
| 文件頁數(shù)： | 13/15頁 |
| 文件大小： | 778K |
| 代理商： | EL7583IR-T7 |
13
FN7335.3
February 4, 2005
Two-Stage Negative Charge Pump Circuit
-
+
V
SSN
DRVN
FBN
V
DDN
C
CPN
C
OUT2
V
LX
C
OUT2
R
21
R
22
C
CPN
V
REF
V
OFF
5V-17V
R
ONN
R
ONP
The maximum V
OFF
output voltage for N+1 stage charge pump is:
V
OFF
max
(
)
I
OUT
2
R
ONN
(
R
ONP
)
2
V
DIODE
- I
OUT
S
I
OUT
CPN
×
--------------------------------------------
×
×
+
+
×
×
- I
OUT
S
OUT2
-----------------------------------------------
-
V
DDN
×
- N
V
LX
max
(
)
N
2
V
DIODE
I
OUT
S
CPN
--------------------------------------------
×
+
×
×
+
×
0.5
F
S
C
OUT2
×
+
≥
R
21
and R
22
determine V
OFF
output voltage:
V
OFF
-V
REF
R
22
---------
×
=
where V
REF
is 1.310V.
Over-Temperature Protection
An internal temperature sensor continuously monitors the
die temperature. In the event that die temperature exceeds
the thermal trip point, the device will shut down and disable
itself. The upper and lower trip points are typically set to
130°C and 90°C respectively.
PCB Layout Guidelines
Careful layout is critical in the successful operation of the
application. The following layout guidelines are
recommended to achieve optimum performance.
V
REF
and V
DDB
bypass capacitors should be placed next
to the pins.
Place the boost converter diode and inductor close to the
LX pins.
Place the boost converter output capacitor close to the
PGND pins.
Locate feedback dividers close to their respected
feedback pins to avoid switching noise coupling into the
high impedance node.
Place the charge pump feedback resistor network after the
diode and output capacitor node to avoid switching noise.
All low-side feedback resistors should be connected
directly to V
SSB
. V
SSB
should be connected to the power
ground close at one point only.
A demo board is available to illustrate the proper layout
implementation.
EL7583
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| EL7583IRZ | 功能描述:IC CONV DC/DC 3-CHAN 20-TSSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 專用型 系列:- 產(chǎn)品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:2,000 系列:- 應用: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 供應商設備封裝:42-WLP 包裝:帶卷 (TR) |
| EL7583IRZ-T13 | 功能描述:IC CONV DC/DC 3-CHAN 20-TSSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 專用型 系列:- 產(chǎn)品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:2,000 系列:- 應用: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 供應商設備封裝:42-WLP 包裝:帶卷 (TR) |
| EL7583IRZ-T7 | 功能描述:IC CONV DC/DC 3-CHAN 20-TSSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 專用型 系列:- 產(chǎn)品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:2,000 系列:- 應用: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 供應商設備封裝:42-WLP 包裝:帶卷 (TR) |
| EL7584 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:4-Channel DC:DC Converter |
| EL7584B WAF | 制造商:Intersil Corporation 功能描述: |
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