ISL8120IRZ Intersil, ISL8120IRZ Datasheet - Page 4

• Manufacturer Part Number: ISL8120IRZ
• Description: IC CTRLR PWM 2PHASE W/DVR 32-QFN
• Manufacturer: Intersil

Specifications of ISL8120IRZ

• Pwm Type: Voltage Mode
• Number Of Outputs: 2
• Frequency - Max: 1.5MHz
• Duty Cycle: 90%
• Voltage - Supply: 3 V ~ 22 V
• Buck: Yes
• Boost: No
• Flyback: No
• Inverting: No
• Doubler: No
• Divider: No
• Cuk: No
• Isolated: No
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 32-VQFN Exposed Pad, 32-HVQFN, 32-SQFN, 32-DHVQFN
• Frequency-max: 1.5MHz
• Rohs Compliant: YES
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Block Diagram
VSEN2+
VSEN2-
COMP2
FB2
(Continued)
VCC
700mV
UNITY GAIN
DIFF AMP2
RELATIVE
CONTROL
PHASE
V
REF
V
VMON2
REF
k*VDDQ
V
REF2
PGOOD
COMP2
M/D CONTROL
E/A2
OV/UV
COMP2
PGOOD
FIGURE 2. CHANNEL/PHASE 2 (VTT)
EN/FF2
SOFT-START AND
FAULT LOGIC
CHANNEL 2
108µA
OTP
AVG_OCP
CHANNEL2
OCP
7-CYCLE
DELAY
POR
CLKOUT/REFIN
CORRECTION
MASTER CLOCK
+
CURRENT
OSCILLATOR
GENERATOR
SAW2
∑
+
-
FSYNC
PWM2
SAW1
ICS2
-
-
I
CSH_ERR
I
AVG
= (I
ICS1
ICS2
I
CS1
AVG_CS+15
CONTROL
M/D = 0: DUAL OUTPUT OPERATION
+ I
GATE
+
+
I
AVG_CS
CHANNEL 2
CS2
SAMPLING
CURRENT
I
CSH_ERR
) / 2
PVCC
µ
AVERAGE
CURRENT
CURRENT
A
ISHARE
SHARE
BLOCK
I
= (V
AVG_CS
M/D = 1: multiphase
ISARE
I
AVG
PVCC
GND
I
AVG_CS+15
0.6V = k*VDDQ
= I
- V
AVG
CONTROL
ISET
M/D
or I
)/G
µ
CS1
A
CS
ISET
BOOT2
UGATE2
PHASE2
LGATE2
ISEN2A
ISEN2B