參數(shù)資料
型號: EL7584IR
廠商: INTERSIL CORP
元件分類: 穩(wěn)壓器
英文描述: 4-Channel DC:DC Converter
中文描述: 1.75 A SWITCHING REGULATOR, 1200 kHz SWITCHING FREQ-MAX, PDSO24
封裝: MO-153, TSSOP-24
文件頁數(shù): 4/16頁
文件大小: 860K
代理商: EL7584IR
Pin Descriptions
I = Input, O = Output, S = Supply
PIN NUMBER
PIN NAME
PIN TYPE
PIN FUNCTION
1
SS
I
Soft-Start input: a capacitor determines the current limit ramp time.
2
FBB
I
Voltage feedback input determines the value of V
BOOST
.
3
EN
I
Starts internal power sequencing of V
BOOST
, V
OFF
, V
COM
and V
ON
outputs
(See Applications Information) ; active HIGH input.
4
VDDB
P
Positive supply for V
BOOST
DC/DC controller.
5
LX1
O
Boost inductor saturating MOSFET #1.
6
LX2
O
Boost inductor saturating MOSFET #2.
7
VSSN*
P
Ground return for V
OFF
regulator.
8
DRVN
O
Pump capacitor driver for V
OFF
regulator.
9
VDDN
P
Positive supply for V
OFF
regulator.
10
FBN
I
Voltage feedback input determines the value of V
OFF
.
11
DP
I
An external capacitor increases V
ON
power up delay time.
12
INC
I
V
COM
Buffer input.
13
VDDC
P
Positive supply for V
COM
Buffer.
14
VCOM
O
V
COM
Buffer output.
15
VSSC*
P
Ground return for V
COM
Buffer.
16
FBP
I
Voltage feedback input determines the value of V
ON
.
17
VDDP
P
Positive supply for V
ON
regulator.
18
DRVP
O
Pump capacitor driver for V
ON
regulator.
19
VSSP*
P
Ground return for V
ON
regulator.
20
PGND*
P
Ground return for MOSFET #1.
21
PGND*
P
Ground return for MOSFET #2.
22
VREF
O
Voltage reference for V
OFF
feedback .
23
ROSC
I
An external resistor sets the DC/DC switching frequency.
24
VSSB*
P
Ground return for V
BOOST
DC/DC controller.
NOTE: *VSSB, VSSC, VSSN, VSSP, and PGND (2) are shorted internally to the device substrate.
4
FN7317.2
February 4, 2005
EL7584
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