isl6217a Intersil Corporation, isl6217a Datasheet - Page 19
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isl6217a
Manufacturer Part Number
isl6217a
Description
Manufacturer
Intersil Corporation
Datasheet
1.ISL6217A.pdf
(20 pages)
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Typical Application - 2 Phase Converter
Using ISL6217A PWM Controller - 38 Lead
TSSOP
Figure 14 shows the ISL6217A, Synchronous Buck
Converter circuit used to provide the CORE voltage
P
UPPER
MVP4_PGOOD
3.40K_1%
DPRSLPVR
243K_1%
1 µ F
DPSLP#
VR_ON
VID
=
2200pF
13K_1%
No-Pop
FIGURE 14. TYPICAL APPLICATION CIRCUIT FOR THE IMVP-IV™ AND IMVP-IV+™ CORE VOLTAGE REGULATOR
I
No-Pop
O
2
×
0.027µF
r
98.8K_1%
DS
( )
V
ON
IN
Analog GND
3.57K_1%
×
1.20K_1%
V
OUT
+5VDC
0.012µF
19
1800pF
+
I
DSV
DACOUT
FSET
PWRCH
EN
DRSEN
DSEN#
VID0
VID1
VID2
VID3
VID4
VID5
EA+
COMP
FB
SOFT
VDD
PGOOD
O
×
V
IN
ISL6217A
TSSOP
560pF
×
t
2
SW
PHASE2
PHASE1
OCSET
BOOT2
×
BOOT1
VSSP2
VSSP1
36.5K_1%
ISEN1
ISEN2
30.1K_1%
49.9K_1%
DRSV
VDDP
VSEN
VBAT
F
VSS
UG2
UG1
STV
LG2
LG1
SW
Power GND
BAT54
+5VDC
(EQ. 11)
ISL6217A
10_1%
1R5_5%
0.33µF
BAT54
1R5_5%
0.33µF
regulation for the Intel IMVP-IV™ and IMVP-IV+™
application. The circuit uses 2 channels for delivering up to
25A steady state current, and has a 250kHz channel
switching frequency. This circuit also switches to single
channel operation for Deep and Deeper Sleep modes of
operation. For thermal compensation, PTC resistors are
used as sense resistors. The Output capacitance is less than
3mΩ of ESR, and are (4) 220µF, 4V Sp-Cap parts in parallel
with (35) high frequency, 10µF ceramic capacitors.
1.5K_1%PTC
10_1%
1 x IRF7811W
2 x SI4404DY
1.5K_1%PTC
4.7 µ F
2 x SI4404DY
ETQ-P3H0R8BA
4 x 10 µ F
0.8 µ H
ETQ-P3H0R8BA
1 x IRF7811W
Vbattery
0.8 µ H
4 x 10 µ F
+Vcc_core
35 x 10 µ F
4 x 220 µ F &
June 30, 2005
FN9107.3