IRDC3840 International Rectifier, IRDC3840 Datasheet - Page 9
IRDC3840
Manufacturer Part Number
IRDC3840
Description
BOARD EVAL SYNC BUCK CONVERTER
Manufacturer
International Rectifier
Specifications of IRDC3840
Silicon Manufacturer
International Rectifier
Kit Contents
Board
Features
Compact, High Performance And Flexible Solution, 600kHz Frequency
Svhc
No SVHC (15-Dec-2010)
Core Architecture
Power Management -
Rohs Compliant
No
06/18/09
Typical Efficiency and Power Loss Curves
Vin=12V, Vcc=5V, Io=1A-12A, F
The table below shows the inductors used for each of the output voltages
in the efficiency measurement.
98
96
94
92
90
88
86
84
82
80
78
76
74
72
3.2
3.0
2.8
2.6
2.4
2.2
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
1
1
Vout (V)
Vout (V)
1V out
1.2
1.2
1.5
1.5
1.8
1.8
3.3
3.3
1V out
2
1
1
5
5
2
3
3
1.2V out
L (uH)
L (uH)
1.2V out
0.22
0.22
0.36
0.36
0.56
0.56
0.6
0.6
4
s
1
1
1
1
4
=600kHz, Room Temperature, No Air Flow
5
5
Lo ad Cu rre n t (A)
Loa d Curre nt (A)
1.5V out
1.5V out
ETQP4LR36WFC
ETQP4LR36WFC
ETQP4LR56WFC
ETQP4LR56WFC
6
PA1320-221NL
PA1320-221NL
6
MPL104-0R6
MPL104-0R6
MPL105-1R0
MPL105-1R0
MPL105-1R0
MPL105-1R0
7
7
P/N
P/N
1.8V out
1.8V out
8
8
9
9
3.3V out
3.3V out
10
10
(mΩ)
(mΩ)
DCR
DCR
0.48
0.48
1.56
1.56
1.1
1.1
1.7
1.7
2.5
2.5
2.5
2.5
11
11
5V out
12
5V out
12
IR3840MPbF
9