XRP6142 Datasheet, PDF (6/17 Pages) Exar Corporation – Synchronous Step-Down Controller with DDR

XRP6142
Synchronous Step-Down Controller with DDR
Memory Termination
TYPICAL PERFORMANCE CHARACTERISTICS
All data taken at V_IN = 3V to 5.5V, T_J = T_A = 25°C, unless otherwise specified - Schematic and BOM from Application
Information section of this datasheet.
4.0
XRP6142EL2.0-F
3.5
3.0
2.5
VC C =5V
2.0
IO=0A
1.2
XRP6142EL0.5-F
1.0
0.8
VC C=5V
IO=0A
0.6
1.5
1.0
XRP6142EL1.0-F
0.5
1
2
3
4
5
6
V_IN (V)
Fig. 4: T_ON versus V_IN
0.4
0.2
1
2
3
4
5
6
VIN (V)
Fig. 5: T_ON versus V_IN
100
XRP6142EL2.0-F
95
90
VIN=VC C =5V
VOUT=2.5V
85
80
0
5
10
15
20
I_OUT (A)
Fig. 6: Efficiency versus I_OUT
2.550
2.525
2.500
2.475
XRP6142EL2.0-F
Io=0A
Io=10A
VC C =5V
2.450
3.5
4.0
4.5
5.0
5.5
V_IN (V)
Fig. 8: Line regulation
2.520
2.510
2.500
XRP6142EL2.0-F
VIN=VCC =5V
2.490
2.480
0
5
10
15
20
I_OUT (A)
Fig. 7: Load regulation
500
XRP6142EL2.0-F
450
400
350
VIN=VCC =5V
300
0
5
10
15
20
I_OUT (A)
Fig. 9: Frequency versus I_OUT
© 2010 Exar Corporation
Page 6 of 17
Rev. 1.0.0