XR76116 Datasheet, PDF (16/19 Pages) Exar Corporation – PowerBloxTM 15A and 20A Synchronous

XR76116/20
Applications Information
REN2 3.83k REN1 10k VIN
VIN = 12V
CSS
47nF
CBST 0.1μF
2 x 0.1μF
4 x 22μF/25V/X6T/1206
FB
VCC
RON 6.19k
SW ^{RLIM 1.82k}
VCC RPGOOD 10k
1 _FB
2 _FCCM
3 _AGND
4 _AGND
5 _TON
6 _ILIM
7 _PGOOD
XR76120
VOUT
RSENS1
VCC
4.02k
L1, IHLP-5050FD-01
800kHz, 1.8V, 0-20A
SW
0.4μH at 44A, 0.9m Ohm _VOUT
12 SW
4 x 0.1μF 5 x 100μF/6.3V/X6T/1206
CFF
470pF
RFF
0.4k
FB
R1
4.02k
VIN
RSENS2
2k
CIN
CVCC
R2
2k
0.1μF
4.7μF
Figure 32. XR76120 Application Circuit Schematic
REN2 3.83k REN1 10k
VIN ^{VIN = 12V}
CSS
47nF
CBST 0.1μF
2 x 0.1μF 4 x 22μF/25V/X6T/1206
FB
VCC
RON 6.19k
SW ^{RLIM 3.16k}
VCC RPGOOD 10k
1 _FB
2 _FCCM
3 _AGND
4 _AGND
5 _TON
6 _ILIM
7 _PGOOD
XR76116
VOUT
RSENS1
VCC
4.04k
L1, IHLP-4040DZ-01
800kHz, 1.8V, 0-15A
SW
0.36μH at 31.5A, 1.3m Ohm _VOUT
12 SW
4 x 0.1μF 3 x 100μF/6.3V/X6T/1206
CFF
470pF
RFF
0.4k
FB
R1
4.04k
VIN
RSENS2
2k
CIN
CVCC
R2
2k
0.1μF 4.7μF
Figure 33. XR76116 Application Circuit Schematic
REV1A
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