ISL6211 Datasheet, PDF (15/16 Pages) Intersil Corporation – Crusoe™ Processor Core-Voltage Regulator

ISL6211
ISL6211 DC-DC Converter Application Circuit
The Figure 13 shows an application circuit of a power supply
for a notebook PC. For detailed information on the circuit,
including a Bill-of-Materials and circuit board description, see
Application Note AN9989. Also see Intersil’s web site
(www.intersil.com) for the latest information.
V_CC ^+5V
V_IN ^{+5.0V... 24.0V}
GND
C1
4.7µF
C2
2x10µF
R1
Q1
START
VID0
VID1
VID2
VID3
VID4
CR2
BAT54WT1
VIN
13
VCC
2
ALTV ₆
105k ^R2 75k
Q2
DSX
PVCC
24
18 ^BOOT
UGATE
19
20 ^PHASE
Q1
µPA1707
ISEN ^R3
21
3.57k
VID0 ₁₂
VID1 ₁₁
VID2 ₁₀
VID3 ₉
VID4 ₈
FREQ ₇
ISL6211
PGOOD
3
23 ^LGATE
22 ^PGND
16 ^VSEN
15 ^OCSET
Q2
µPA1707
R6
100k
C3
0.22µF
L2
V_core
(0.60V... 1.75V AT 6A)
1.8µH
C4 ⁺
4x220µF
R4
80.6R
R5
2.00k
EN ₄
FCCM
5
14 ^SOFT
C5
0.22µF
1
GND
FIGURE 13. APPLICATION CIRCUIT
15