ISL78220 Datasheet, PDF (4/22 Pages) Intersil Corporation – 6-Phase Interleaved Boost PWM Controller with Light Load Efficiency Enhancement

ISL78220
Ordering Information
PART NUMBER
(Notes 2, 3)
PART MARKING
TEMP RANGE
(°C)
PACKAGE
(Pb-free)
PKG.
DWG. #
ISL78220ANEZ-T (Note 1)
ISL78220 ANEZ
-40 to +125
44 Ld EP-TQFP
Q44.10x10A
ISL78220ENG1-EVZ
Evaluation Board
ISL78220EVAL1Z
Evaluation Board
NOTES:
1. Please refer to TB347 for details on reel specifications.
2. These Intersil Pb-free plastic packaged products employ special Pb-free material sets, molding compounds/die attach materials, and 100% matte
tin plate plus anneal (e3 termination finish, which is RoHS compliant and compatible with both SnPb and Pb-free soldering operations). Intersil
Pb-free products are MSL classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020.
3. For Moisture Sensitivity Level (MSL), please see device information page for ISL78220. For more information on MSL please see tech brief TB363.
ISL78220 Block Diagram
VIN_OVB VOUT_SEN
PGOOD VOUT_OVB
VIN_SEN
VIN
VCC
EN
SS
DRIVE_EN
2.4V
OV_IN
REF
5V LDO
2V
POR
1.2V
OVER OT
TEMP
5µA
SOFT- START LOGIC
VREF2
FB
COMP
2V
Gm
2.4V OC_ALL
OC_PH
OV_OUT
OV_IN
UV
OC
OT
S
Q
R
2.4V
FB
FAULT CONTROL
CIRCUITS
OV_OUT
UV
0.8Vref
DUPLICATE FOR EACH
CHANNEL
DMAX
OT
OC
OV_OUT
PH3 PH4 PH5 PH6
DMAX
20k
OC_PH
S
R1 Q
R2
IOUT
PHASE DROP CONTROL
IOUT1
ADDER
OC_ALL
2V
IOUT6
SYNC
PLL_COMP
SYNC
DETECT
VCO
SLOPE
COMPENSATION
CLK_OUT
DMAX
FS
SLOPE
ISEN1
CSA
IOUT1
160µA
(FOR PH1 &
ZCD _{PH2 ONLY)}
PWM CONTROL
ISEN1P
ISEN1N
PWM1
MODE
PWM_TRI
PWM_INV
MODE
GND
4
FN7688.0
December 15, 2011