BAT-54 National Semiconductor Corporation, BAT-54 Datasheet - Page 20

• Manufacturer Part Number: BAT-54
• Description: N-channel Fet Synchronous Buck Regulator Controller For Low Output Voltages
• Manufacturer: National Semiconductor Corporation

www.national.com
Q1/Q2
Cboot
Rfadj
Rfadj
Rfb1
Rfb2
Cin1
Rfb1
Rfb2
Rfb1
Rfb2
Cc1
Cc2
Rc1
Co1
Cc1
Cc2
Cc3
Rc1
Rc2
Cc1
Cc2
Cc3
Rc1
Rc2
Rcs
Css
Rcs
Rin
Cin
Rin
Lin
U1
D1
U1
L1
L1
ID
ID
ID
ID
RLF7030T-3R3M4R1
RLF7030T-4R7M3R4
RLF7030T-1R0N64
C4532X5R1E156M
C4532X5R1E156M
C3216X7R1E225K
CRCW120666R5F
CRCW12064992F
CRCW12061473F
CRCW12061492F
CRCW12064991F
CRCW12061742F
CRCW12061072F
CRCW12064991F
CRCW12061002F
CRCW12061212F
CRCW12061002F
CRCW12062211F
VJ1206A4R7KXX
CRCW12054R9F
VJ1206A681KXX
VJ1206X104XXA
VJ1206X393KXX
VJ1206A220KXX
VJ1206A681KXX
VJ1206A681KXX
VJ1206A270KXX
VJ1206X102KXX
VJ1206A821KXX
CRCW1206100J
CRCW1206332J
CRCW1206100J
CRCW1206152J
Part Number
Part Number
Part Number
Part Number
Si4826DY
LM2727
LM2727
BAT-54
TABLE 5. Bill of Materials for Circuit of Figure 5 (Continued)
TABLE 7. Bill of Materials for 3.3V Circuit of Figure 6
(Identical to BOM for 1.8V except as noted below)
TABLE 6. Bill of Materials for Circuit of Figure 6
TABLE 8. Bill of Materials for Circuit of Figure 7
Capacitor
Capacitor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Synchronous
Controller
Assymetric Dual
N-MOSFET
Schottky Diode
Inductor
Inductor
MLCC
MLCC
Capacitor
Capacitor
Capacitor
Capacitor
Capacitor
Capacitor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Inductor
Capacitor
Capacitor
Capacitor
Resistor
Resistor
Resistor
Resistor
Synchronous
Controller
Type
Type
Type
Type
6.8x7.1x 3.2mm
6.8x7.1x3.2mm
6.8x7.1x3.2mm
TSSOP-14
TSSOP-14
20
SOT-23
SO-8
1206
1206
1206
1206
1206
1206
1206
1206
1812
1812
1206
1206
1206
1206
1206
1206
1206
1206
1206
1206
1206
1206
1206
1206
1206
1206
1206
1206
1206
1206
Size
Size
Size
Size
3.3µH, 4.1A, 17.4mΩ
4.7µH, 3.4A, 26mΩ
Top 16.5mΩ/ 15nC
15µF 25V 3.3Arms
15µF 25V 3.3Arms
1µH, 6.4A, 7.3mΩ
30V, 24mΩ/ 8nC
Parameters
Parameters
Parameters
Parameters
680pF 10%
680pF 10%
680pF 10%
820pF 10%
49.9kΩ 1%
14.9kΩ 1%
4.99kΩ 1%
17.4kΩ 1%
10.7kΩ 1%
4.99kΩ 1%
12.1kΩ 1%
2.21kΩ 1%
4.7pF 10%
147kΩ 1%
0.1µF, 25V
2.2µF, 25V
39nF, 25V
22pF 10%
27pF 10%
3.3kΩ 5%
66.5Ω 1%
1.5kΩ 5%
54.9Ω 1%
10kΩ 1%
10kΩ 1%
1nF 10%
10Ω 5%
10Ω 5%
30V
Qty.
Qty.
Qty.
Qty.
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Vendor
Vendor
Vendor
Vendor
Vishay
Vishay
Vishay
Vishay
Vishay
Vishay
Vishay
Vishay
Vishay
Vishay
Vishay
Vishay
Vishay
Vishay
Vishay
Vishay
Vishay
Vishay
Vishay
Vishay
Vishay
Vishay
Vishay
Vishay
Vishay
Vishay
Vishay
Vishay
Sanyo
Sanyo
NSC
NSC
TDK
TDK
TDK
TDK
TDK