IR3621F International Rectifier, IR3621F Datasheet - Page 20

• Manufacturer Part Number: IR3621F
• Description: IC PWM DUAL SYNC PREBIAS 28TSSOP
• Manufacturer: International Rectifier

Specifications of IR3621F

• 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

IR3621 & (PbF)
TYPICAL OPERATING CHARACTERISTICS
20
6.24
6.22
6.18
6.16
6.14
6.12
6.2
6.1
31
29
27
25
23
21
19
17
15
0.8060
0.8040
0.8020
0.8000
0.7980
0.7960
0.7940
-50
-50
-50
-25
-25
SS Charge Current vs. Temperature
VOUT3 vs. Temperature
Vfb1 vs. Temperature
0
0
0
Temperature (C)
Temperature (C)
Temperature [C]
25
25
50
50
50
75
75
100
100
100
SS1
SS2
125
150
125
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2500
2000
1500
1000
350
300
250
200
150
100
500
50
0
-50
0.8060
0.8040
0.8020
0.8000
0.7980
0.7960
0.7940
-50
-50
-25
-25
Transconductance vs. Temperature
Frequency vs. Temperature
Vfb2 vs. Temperature
0
0
0
(Rt=30.9kohm)
Temperature (C)
Temperature (C)
Temperature [C]
25
25
50
Transconductance 1
Transconductance 2
50
50
75
75
100
100
100
150
125
125