ISL6224 Ver la hoja de datos (PDF) - Renesas Electronics
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ISL6224 Datasheet PDF : 13 Pages
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ISL6224
ISL6224 DC-DC Converter Application Circuits
Figure 5 shows an application circuit of a DC/DC converter
for a notebook PC. The power supply provides +V2_5S from
either +4V–24VDC battery voltage or system +5V bus. For
detailed information on the circuit, including a bill of materials
and circuit board description, see Application Note AN9983.
Also see Intersil’s web site (http://www.intersil.com) for the
latest information.
C2
1µF
+ C1
56µF
+5.6-24VIN
GND
R2
OCSET
TBD
FCCM
EN
C4
0.015µF
SOFT
PGOOD
VIN
4
1
16
ISL6224
3
7
2
8
GND
VCC
11
BOOT
15
CR1
14 UGATE
PHASE
13
ISEN
12
Risen
TBD
10 LGATE
9 PGND
VSEN
6
VOUT
5
+ C3
33µF
+5.0VCC
Q1
1/2 FDS6912A
C6
0.1µF
L1 6.4µH
+V2_5S
(3A)
C5 +
Q2
330µF
2/2 FDS6912A
R3
C6
R4
FIGURE 5. APPLICATION CIRCUIT FOR ONE-STEP CONVERSION (MODE 1)
FN9042 Rev 8.00
June 8, 2006
Page 11 of 13
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