ISL6532B Datasheet, PDF (14/15 Pages) Intersil Corporation – ACPI Regulator/Controller for Dual Channel DDR Memory Systems

ISL6532B
ISL6532B Application Circuit
Figure 7 shows an application circuit utilizing the ISL6532B.
Detailed information on the circuit, including a complete Bill-
of-Materials and circuit board description, can be found in
Application Note AN1055.
+3.3V
PGOOD
V_DDQ
V_REF
C₂₆
0.1µF
R₂
10.0kΩ
S5
S3
C₂₇
0.1µF
C₁₉
0.47µF
V_TT
1.25V
V_DDQ
C₂₀ ⁺
220µF
+ _C21
220µF
C_17,18
1µF
5VSBY
PGOOD
SLP_S5#
SLP_S3#
VCC12
C₁₆
1µF
NCH
VREF_OUT
VREF_IN
ISL6532B
VTT
VTT
VTTSNS
UGATE
LGATE
VDDQ
VDDQ
FB
COMP
R₁
4.99kΩ
VCC5
Q₅
L₁
2.1µH
C_4,5 ^{+ C}1-3
1µF
2200µF
Q_1,3
L₂
2.1µH
Q_2,4
V_DDQ
2.5V
+ ^C6-8
1800µF _C9-12
22µF
R₄
1.74kΩ
C₁₅
1000pF
C₁₃ R₅
56nF 22.6Ω
C₁₄
R₃
6.8nF 19.1kΩ
R₆
825Ω
FIGURE 7. DDR SDRAM AND AGP VOLTAGE REGULATOR USING THE ISL6532B
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