IR3621M International Rectifier, IR3621M Datasheet - Page 19
IR3621M
Manufacturer Part Number
IR3621M
Description
IR PWM DUAL SYNC PREBIAS 32MLPQ
Manufacturer
International Rectifier
Datasheet
1.IR3621MTR.pdf
(29 pages)
Specifications of IR3621M
Pwm Type
Voltage Mode
Number Of Outputs
2
Frequency - Max
345kHz
Duty Cycle
86.5%
Voltage - Supply
5.5 V ~ 14.5 V
Buck
Yes
Boost
No
Flyback
No
Inverting
No
Doubler
No
Divider
No
Cuk
No
Isolated
No
Operating Temperature
-40°C ~ 125°C
Package / Case
32-MLPQ
Frequency-max
345kHz
Package
32-Lead MLPQ
Circuit
Dual Sync PWM Controller or 2Phase Single Output
Vcc (min)
4.7
Vcc (max)
16
Vout (min)
0.8
Vout (max)
Vcc * 0.90
Switch Freq (khz)
programmable to 500kHz
Pbf
PbF Option Available
For Use With
IRDC3621 - BOARD EVAL DUAL SYNC BUCK CTRLR
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
IR3621M
Manufacturer:
IR
Quantity:
20 000
Company:
Part Number:
IR3621MTR
Manufacturer:
TI
Quantity:
2 666
Part Number:
IR3621MTR
Manufacturer:
IR
Quantity:
20 000
TYPICAL APPLICATION
12V
PGood
Figure 20 - 2-phase operation with inductor current sensing using type 2 compensation.
C10
C3
C8
C9
R2
C5
C4
R3
R4
V
Vcc
Hiccup
Sync
V
Rt
Comp1
Comp2
PGood
SS2 / SD
SS1 / SD
CL
REF
C12
VcH1
IR3621
U1
V
12V to 1.8V @ 30A output
OUT3
OCSet1
OCSet2
PGnd2
PGnd1
HDrv2
HDrv1
LDrv2
LDrv1
V
V
VcH2
Gnd
SEN1
SEN2
Fb1
Fb2
V
www.irf.com
P2
V
SEN1
R6
R1
C13
Q2
Q3
Q4
Q5
C17
C14
D1
C11
R5
R9
L3
L4
IR3621 & (PbF)
C15
C18
R7
R8
R7
R8
C16
1.8V @ 30A
19