L6728A STMicroelectronics, L6728A Datasheet - Page 22

• Manufacturer Part Number: L6728A
• Description: Voltage Mode PWM Controllers Hi-Freq. singl-phase PWM controller w/Po
• Manufacturer: STMicroelectronics

Specifications of L6728A

• Number Of Outputs: Dual Output
• Topology: Buck
• Output Voltage: 0.8 V
• Output Current: 1500 mA
• Switching Frequency: 660 KHz
• Duty Cycle (max): 67 %
• Maximum Operating Temperature: + 125 C
• Minimum Operating Temperature: - 40 C
• Package / Case: VFDFPN-10 EP
• Synchronous Pin: No
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

L6728A
Table 6.
Capacitors
Resistors
Inductor
Active components
Qty
48
2
1
3
2
1
1
1
4
5
5
1
1
1
1
1
5
1
1
1
C1, C2
C10
C11 to C13
C14, C38
C3 to C9, C15 to C20, C39 to
C59, C36, C37, C21 to C23,
C25 to C29, C31 to C34
C30
C24
C35
R1, R2, R20, R17
R3, R5, R11, R12, R16
R4, R10, R14, R15, R21
R19
R18
L1
L2
D1
Q1 to Q4, Q8
Q5
Q7
U1
20A demonstration board - bill of material (common components)
Reference
Not mounted
Electrolytic capacitor 1800 μF 16 V
Sanyo P/N 16ME1800WG
MLCC, 100 nF, 50 V, X7R
Murata GRM188R71H104K
MLCC, 4.7 μF, 16 V, X7R
Murata GRM31CR71C475K
MLCC, 1 μF, 16 V, X7R
Murata GRM21BR71C105K
Not mounted
POSCAP 470 μF, 6.3 V, 10 mΩ
Sanyo P/N 6TPD470M
MLCC, 47 nF, 50 V, X7R
Murata GRM188R71H473K
MLCC, 100 pF, 50 V, X7R
Murata GRM188R71H101K
Resistor, 2R2, 1/16W, 1%
Resistor, 0R, 1/8W, 1%
Not mounted
Resistor, 22 K, 1/16W, 1%
Resistor, 18 K, 1/16W, 1%
Wurth SMD power inductor
670 nH - 1.75 mΩ - 40 A
P/N 744-315-067
Not mounted
Diode, 1N4148
STD70NH02L
STD95NH02L
Controller, L6728A
Description
20 A demonstration board
Radial 10 x 23 mm
VFQFPN10,
SMD0603
SMD1206
SMD0805
SMD1206
SMD0603
SMD0603
SMD0805
SMD0603
Package
3x3 mm
DPACK
SOT23
na
na
na
na
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