IR3621FTRPBF International Rectifier, IR3621FTRPBF Datasheet - Page 27
![IC PWM DUAL SYNC PREBIAS 28TSSOP](/photos/7/54/75407/ir3621ftrpbf_sml.jpg)
IR3621FTRPBF
Manufacturer Part Number
IR3621FTRPBF
Description
IC PWM DUAL SYNC PREBIAS 28TSSOP
Manufacturer
International Rectifier
Datasheet
1.IR3621MTR.pdf
(29 pages)
Specifications of IR3621FTRPBF
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
28-TSSOP
Frequency-max
345kHz
Package
28-Pin TSSOP
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
Other names
IR3621FTRPBFTR
TYPICAL PERFORMANCE CURVES
Test Conditions:
V
Unless otherwise specified.
IN
=12V, V
OUT1
90
85
80
75
70
65
60
55
50
45
Figure 40 - Efficiency for 2.5V and 1.8V outputs at room temperature and no air flow.
=2.5V, I
0
Efficiency was measured when the other output was operating at no load.
OUT1
2
=0-10A, V
4
OUT2
=1.8V, I
12V to 2.5V and 1.8V
6
OUT2
Io(A)
www.irf.com
8
=0-10A, Fs=400kHz, Ta=Room Temp, No Air Flow
10
12
14
IR3621 & (PbF)
16
2.5V
1.8V
27