XRP6141 Datasheet, PDF (6/14 Pages) Exar Corporation – 35A Synchronous Step Down COT Controller

XRP6141
35A Synchronous Step Down COT Controller
TYPICAL PERFORMANCE CHARACTERISTICS
All data taken at VIN = 12V, VOUT=1.2V, f=300kHz, TA = 25°C, unless otherwise specified - Schematic and BOM from Application
Information section of this datasheet.
1.250
1.240
1.230
1.220
+1%
Typical
-1%
1.210
1.200
1.190
1.180
1.170
1.160
1.150
0
5
10
15
20
25
I_OUT (A)
Fig. 4: Load regulation, VIN=12V
1.250
1.240
1.230
1.220
+1%
Typical
-1%
1.210
1.200
1.190
1.180
1.170
1.160
1.150
5
10
15
20
V_IN (V)
Fig. 5: Line regulation, IOUT=25A
SW
VOUT
IL
2us/d
Fig. 6: VOUT ripple is 22mV at 25A, 12VIN, 1.2VOUT
SW
VOUT
IL
20ms/d
Fig. 7: VOUT ripple is 22mV at 0A, DCM, 12VIN, 1.2VOUT
VIN
VOUT
SW
IL
VIN
VOUT
SW
IL
Fig. 8: Powerup, Forced CCM, IOUT=0A
Fig. 9: Powerup, Forced CCM, IOUT=25A
© 2015 Exar Corporation
6/14
Rev. 2.0.0