參數(shù)資料
型號(hào): US3022CW
廠商: Unisem Group
英文描述: 4 BIT PROGRAMMABLE SYNCHRONOUS BUCK PLUS FOUR LDO CONTROLLER
中文描述: 4位可編程同步降壓外加4個(gè)LDO控制器
文件頁數(shù): 6/7頁
文件大?。?/td> 61K
代理商: US3022CW
4-6
Rev. 1.0
11/2/99
US3022
BLOCK DIAGRAM
Figure 1 - Simplified block diagram of the US3022.
PWM
Control
V12
V12
3022blk1-1.0
Osc
Slope
Comp
+
1.26V
4Bit
DAC
Enable
Soft
Start &
Fault
Logic
200uA
0.9Vset
1.1Vset
1.17Vset
Vset
Enable
UVLO
Vset
Enable
PGood
Vsen3
Vsen2
Drive4
Select
Drive3
Vsen1
Drive2
V5
V12
SS
Gnd
Fault / Rt
Phase
OCSet
LGate
UGate
Fb
Vsen4
PGnd
Over
Current
Over
Voltage
Vaux
Vref
VID3
VID2
VID1
VID0
R
3R
R
3R
1.5V
3.3V
Vsen5
Drive5
R
3R
2.5V
+
2V
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