Datasheet

C
IN
AVIN
CBOOT
SW
FB
PGOOD
RON
LM2696
V
IN
V
OUT
R
FB1
R
FB2
GND
C
OUT
R
ON
PVIN
SD
C
SS
SS
EXTV
CC
C
EXT
C
BOOT
D
CATCH
L
C
AVIN
C
SD
C
BY
V
PGOOD
V
SD
LM2696
SNVS375B –OCTOBER 2005–REVISED APRIL 2013 www.ti.com
Figure 27. 5V-to-2.5V Voltage Applications Circuit
Table 1. Bill of Materials
(1)
Designator Function Description Vendor Part Number
C
IN
Input Cap 470 µF Sanyo 10MV470WX
C
BY
Bypass Cap 0.1 µF Vishay VJ0805Y104KXAM
C
SS
Soft-Start Cap 0.01 µF Vishay VJ080JY103KXX
C
EXT
EXTV
CC
1 µF Vishay VJ0805Y105JXACW1BC
C
BOOT
Boot 0.1 µF Vishay VJ0805Y104KXAM
C
AVIN
Analog V
IN
1 µF Vishay VJ0805Y105JXACW1BC
C
OUT
Output Cap 47 µF AVX TPSW476M010R0150
C
SD
Shutdown Cap 1 nF Vishay VJ0805Y102KXXA
R
FB1
High Side FB Res 1 kΩ Vishay CRCW08051001F
R
FB2
Low Side RB Res 1 kΩ Vishay CRCW08051001F
R
ON
On Time Res 143 kΩ Vishay CRCW08051433F
D
CATCH
Boot Diode 40V @ 3A Diode Central Semi CMSH3-40M-NST
L Output Inductor 6.8 uH, 4.9A ISAT Coilcraft MSS1260-682MX
(1) (Figure 27: Medium Voltage Board, 5V-to-2.5V conversion, f
sw
= 300 kHz)
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