欢迎访问ic37.com |
会员登录 免费注册
发布采购

L4973D5.1 参数 Datasheet PDF下载

L4973D5.1图片预览
型号: L4973D5.1
PDF下载: 下载PDF文件 查看货源
内容描述: 3.5A降压开关稳压器 [3.5A step down switching regulator]
分类和应用: 稳压器开关式稳压器或控制器电源电路开关式控制器光电二极管PC
文件页数/大小: 27 页 / 368 K
品牌: STMICROELECTRONICS [ STMICROELECTRONICS ]
 浏览型号L4973D5.1的Datasheet PDF文件第1页浏览型号L4973D5.1的Datasheet PDF文件第2页浏览型号L4973D5.1的Datasheet PDF文件第4页浏览型号L4973D5.1的Datasheet PDF文件第5页浏览型号L4973D5.1的Datasheet PDF文件第6页浏览型号L4973D5.1的Datasheet PDF文件第7页浏览型号L4973D5.1的Datasheet PDF文件第8页浏览型号L4973D5.1的Datasheet PDF文件第9页  
L4973
Block diagram
1
Block diagram
Figure 2.
Block diagram
INH
10(11)
V5.1
16(18)
7(8)
V
CC
8(9)
CBOOT
CHARGE
ZERO CURRENT
INHIBIT
VREF
GOOD
INTERNAL
REFERENCE
INTERNAL
SUPPLY
5.1V
V
CC
5.1V
3.3V
SS
17(19)
SOFT
START
HICCUP CURRENT
LIMITING
COMP
11(12)
THERMAL
SHUTDOWN
5.1V
3.3V
+
E/A
-
CURRENT
LIMITING
R
S
Q
Q
9(10)
BOOT
VFB
-
+
PWM
12(13)
SYNC
18(20)
OSCILLATOR
DRIVER
1(1)
OSC
4,5,6,13,14,15
(4,5,6,7,14,15,16,17)
GND
2(2)
OUT
3(3)
OUT
D94IN161B
Pin x = Powerdip
Pin (x) = S020
2
2.1
Pin settings
Pin connection
Figure 3.
Pin connection
(top view)
OSC
OUT
OUT
GND
GND
GND
GND
V
CC
V
CC
BOOT
D94IN162A
D94IN163A
OSC
OUT
OUT
GND
GND
GND
V
CC
V
CC
BOOT
1
2
3
4
5
6
7
8
9
18
17
16
15
14
13
12
11
10
SYNC
SS
V5.1
GND
GND
GND
VFB
COMP
INH
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
SYNC
SS
V5.1
GND
GND
GND
GND
VFB
COMP
INH
DIP -18 (12+3+3)
SO20 (12+4+4)
3/27