el7583 Intersil Corporation, el7583 Datasheet - Page 4
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el7583
Manufacturer Part Number
el7583
Description
3-channel Dc/dc Converter
Manufacturer
Intersil Corporation
Datasheet
1.EL7583.pdf
(16 pages)
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Pin Descriptions
PIN NUMBER
10
11
12
13
14
15
16
17
18
19
20
1
2
3
4
5
6
7
8
9
PIN NAME
VDDB
DRVN
VDDN
VDDP
DRVP
PGND
PGND
ENBN
ROSC
VSSB
VSSP
VREF
ENP
FBB
FBN
FBP
SS
LX
LX
LX
I = Input, O = Output, S = Supply
4
PIN TYPE
S
S
O
O
O
O
S
S
S
O
O
O
I
I
I
I
I
I
I
I
Ground for DC/DC boost and reference circuits; chip substrate
Soft-start input; the capacitor connected to this pin sets the current limited start time
Voltage feedback input for boost circuit; determines boost output voltage, V
Positive supply input for DC/DC boost circuits
Boost regulator inductor drive connected to drain of internal NFET
Boost regulator inductor drive connected to drain of internal NFET
Boost regulator inductor drive connected to drain of internal NFET
Driver output for the external generation of negative charge pump voltage, V
Positive supply for input for V
Voltage feedback input to determine negative charge pump output, V
Negative supply pin for both the positive and negative charge pumps
Voltage feedback to determine positive charge pump output, V
Positive supply input for V
Voltage driver output for the external generation of positive charge pump, V
Power ground, connected to source of internal NFET
Power ground, connected to source of internal NFET
Voltage reference for charge pump circuits; decouple to ground
Enable pin for boost (V
active high
Enable for DRVP (V
Connected to an external resistor to ground; sets the switching frequency of the DC/DC
boost
EL7583
ON
BOOST
generation); active high
ON
OFF
generator
generation) and negative charge pump (V
generator
PIN FUNCTION
ON
OFF
OFF
BOOST
ON
OFF
generation);
May 12, 2006
FN7335.5