IRDC3820 International Rectifier, IRDC3820 Datasheet - Page 11

• Manufacturer Part Number: IRDC3820
• Description: BOARD EVAL SYNC BUCK CONVERTER
• Manufacturer: International Rectifier

Specifications of IRDC3820

• Silicon Manufacturer: International Rectifier
• Kit Application Type: Power Management - Voltage Regulator
• Application Sub Type: Synchronous Buck Converter
• Features: Programmable Soft Start, Programmable
• Rohs Compliant: Yes

TYPICAL OPERATING WAVEFORMS
Vin=12V, Vo=1.8V, Io=0- 12A, Room Temperature, No Air Flow
Rev 0.0
01/07/2008
90
85
80
75
70
65
60
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
1
Power Loss VCC=VIN=12V
0
Efficiency VCC=VIN=12V
2
1
3
2
Fig.15: Efficiency versus load current
Fig.16: Power loss versus load current
3
4
4
Load Current (A)
5
Load Current (A)
5
6
Efficiency VIN=12V@VCC=5V
6
Power Loss VIN = 12V@VCC = 5V
7
7
8
8
9
9
10
10
11
11
IRDC3820
12
12
11