參數資料
型號: L6725
廠商: 意法半導體
英文描述: Low cost adjustable step-down controller
中文描述: 低成本可調降壓控制器
文件頁數: 20/27頁
文件大?。?/td> 489K
代理商: L6725
L6725 demoboard
L6725
20/27
7
L6725 demoboard
7.1
Description
L6725
demoboard realizes in a four layer PCB a step-down DC/DC converter and shows the
operation of the device in a general purpose application. The input voltage can range from 4.5V
to 14V and the output voltage is at 3.3V. The module can deliver an output current in excess of
20A. The switching frequency is set at 250 KHz (controller free-running F
SW
) but it can be set
to 500KHz acting on the EAREF pin.
Figure 13. Demoboard schematic
Table 5.
Demoboard part list
Reference
Value
Manufacturer
Package
Supplier
R1
1k
Neohm
SMD 0603
IFARCAD
R2
1k
Neohm
SMD 0603
IFARCAD
R3
4K7
R4
2k7
Neohm
SMD 0603
IFARCAD
R5
0
Neohm
SMD 0603
IFARCAD
R6
N.C.
Neohm
SMD 0603
IFARCAD
R7
2K
Neohm
SMD 0603
IFARCAD
R8
10
Neohm
SMD 0603
IFARCAD
R9
1K5
Neohm
SMD 0603
IFARCAD
R10
2.2
Neohm
SMD 0603
IFARCAD
GOUT
R2
GN
L1
Q1-3
Q4-6
D3
5
U1
L6725
VIN
VOUT
8
OCH
C11
R9
C9
9
10
6
7
HGATE
PHASE
LGATE
PGND
3
VCC
12
GND
VCC
2
SS
C4
BOOT
D1
VCCDR
11
C10
1
VFB
COMP
R3
R1
C1
C2
C3
R4
R7
4
EAREF
C5
C7
R8
16
15
OCL
R10
R11
C12-C13
C16-C19
R6
R5
C8
J1
R12
C15
EXT REF
J2
相關PDF資料
PDF描述
L6725TR Low cost adjustable step-down controller
L6728 Single phase PWM controller with PowerGOOD
L6728TR Single phase PWM controller with PowerGOOD
L6731B Transistor; Type: Amplifiers/Bipolar; VCEO (V): 25; Ic (A): 1; Pc (W): 0.8; hFE: 85 to 330; VCE (sat) (V) max: 0.5; Package: TO-92Mod
L6731BTR Transistor; Type: Amplifiers/Bipolar; VCEO (V): -25; Ic (A): -1; Pc (W): 0.8; hFE: 85 to 330; VCE (sat) (V) max: -0.5; Package: TO-92Mod
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