lm2746mxax National Semiconductor Corporation, lm2746mxax Datasheet - Page 23

• Manufacturer Part Number: lm2746mxax
• Description: Low Voltage N-channel Mosfet Synchronous Buck Regulator Controller
• Manufacturer: National Semiconductor Corporation

Example Circuits
PART
U1
Q1
D1
L1
C
C
C
C
C
C
C
C
R
R
R
R
R
R
R
R
IN
O
CC
IN
C3
SS
C2
C1
FB2
FB1
FADJ
C2
CS
CC
C1
PULL-UP
1
1
2, C
, C
BOOT,
O
2
PART NUMBER
LM2746
FDS6898A
MBR0520LTI
DO3316P-332
16SP100M
6SP220M
VJ1206Y104KXXA
VJ0805Y222KXXA
VJ0805A123KXAA
VJ0805Y332KXXA
VJ0805A820KXAA
CRCW08051002F
CRCW08052211F
CRCW08051103F
CRCW08052611F
CRCW08054121F
CRCW080510R0F
CRCW08051272F
CRCW08051003J
(Continued)
FIGURE 18. 12V to 3.3V
TYPE
Synchronous
Controller
Dual N-MOSFET
Schottky Diode
Inductor
Aluminum
Electrolytic
Aluminum
Electrolytic
Capacitor
Capacitor
Capacitor
Capacitor
Capacitor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
PACKAGE
TSSOP-14
SO-8
SOD-123
10mm x 6mm
10mm x 6mm
1206
805
805
805
805
805
805
805
805
805
805
805
805
23
@
4A, f
SW
= 300kHz
DESCRIPTION
20V, 10mΩ
16nC
3.3µH, 5.4Arms 15mΩ
100µF, 16V, 2.89Arms
220µF, 6.3V 3.1Arms
0.1µF, 10%
2200pF, 10%
12nF, 10%
3300pF 10%
82pF, 10%
10.0kΩ 1%
2.21kΩ 1%
110kΩ 1%
2.61kΩ 1%
4.12 kΩ 1%
10.0Ω 1%
12.7kΩ 1%
100kΩ 5%
@
4.5V,
VENDOR
NSC
Fairchild
Coilcraft
Sanyo
Sanyo
Vishay
Vishay
Vishay
Vishay
Vishay
Vishay
Vishay
Vishay
Vishay
Vishay
Vishay
Vishay
Vishay
20147734
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