L6728AHTR STMicroelectronics, L6728AHTR Datasheet - Page 22

• Manufacturer Part Number: L6728AHTR
• Description: IC CTLR PWM SGL PHASE 10-VFQFPN
• Manufacturer: STMicroelectronics

Specifications of L6728AHTR

• Pwm Type: Voltage Mode
• Number Of Outputs: 1
• Frequency - Max: 660kHz
• Duty Cycle: 67%
• Voltage - Supply: 5 V ~ 12 V
• Buck: Yes
• Boost: No
• Flyback: No
• Inverting: No
• Doubler: No
• Divider: No
• Cuk: No
• Isolated: No
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 10-VFQFN, 10-VFQFPN
• Frequency-max: 660kHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-8977-2

20 A demonstration board
22/33
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
Doc ID 15726 Rev 1
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
Not mounted
STD70NH02L
STD95NH02L
Controller, L6728AH
Description
Radial 10 x 23 mm
VFQFPN10,
SMD0603
SMD1206
SMD0805
SMD1206
SMD0603
SMD0603
SMD0805
SMD0603
Package
3x3 mm
DPACK
SOT23
N.A.
N.A.
N.A.
N.A.
L6728AH