ISL6263CRZ Intersil, ISL6263CRZ Datasheet - Page 15

• Manufacturer Part Number: ISL6263CRZ
• Description: IC VREG CORE 5BIT 1PHASE 32-QFN
• Manufacturer: Intersil

Specifications of ISL6263CRZ

• Applications: Converter, Intel IMVP-6
• Voltage - Input: 5 ~ 25 V
• Number Of Outputs: 1
• Voltage - Output: 0.41 ~ 1.29 V
• Operating Temperature: -10°C ~ 100°C
• Mounting Type: Surface Mount
• Package / Case: 32-VQFN Exposed Pad, 32-HVQFN, 32-SQFN, 32-DHVQFN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

The gain of the droop amplifier circuit is Equation 14:
After determining R
Equation 15 to calculate the droop resistances R
R
k
R
droopamp
DRP2
DRP2
.
=
⎛
⎜
⎝
⎛
⎜
⎝
=
------------------------------------------ -
DCR G
1
FIGURE 9. EQUIVALENT MODEL FOR DROOP CIRCUIT USING DISCRETE RESISTOR CURRENT SENSING
+
R
R
-------------------
R
FIGURE 8. EQUIVALENT MODEL FOR DROOP CIRCUIT USING INDUCTOR DCR CURRENT SENSING
⋅
droop
DRP2
DRP1
S
1 25°C
(
and R
)
⎞
⎟
⎠
NTCEQ
–
15
1
⎞
⎟
⎠
⋅
R
OCP
OCP
DRP1
networks, use
−
+
+
−
−
+
+
−
10µA
10µA
DROOP
DROOP
↓
↓
DRP1
−
+
+
−
(EQ. 14)
(EQ. 15)
DROOP
DROOP
OCSET
OCSET
VSUM
VSUM
and
VDD
DFB
VDD
DFB
VO
VO
ISL6263
R
R
OCSET
OCSET
R
typically 1kΩ.
The effectiveness of the R
coupling coefficient between the NTC thermistor and the
inductor. The NTC thermistor should be placed in the closet
proximity of the inductor.
droop
is 8mΩ per Intel IMVP-6+ specification and R
R
R
S
S
NTCEQ
V
RSNS
V
DCR
network is sensitive to the
June 10, 2010
DRP1
FN9213.2
is