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參數(shù)資料
| 型號： | US3018CW |
| 廠商： | Unisem Group |
| 英文描述： | 5 BIT PROGRAMMABLE SYNCHRONOUS BUCK PLUS LDO CONTROLLER AND 200mA LDO ON BOARD |
| 中文描述： | 5位可編程同步降壓普樂士LDO控制器和200mA LDO的船上 |
| 文件頁數(shù)： | 3/17頁 |
| 文件大?。?/td> | 108K |
| 代理商： | US3018CW |
US3018
4-3
Rev. 1.4
12/8/00
Error Comparator Section
Input bias current
Input Offset Voltage
Delay to Output
Current Limit Section
C.S Threshold Set Current
C.S Comp Offset Voltage
Hiccup Duty Cycle
Output Drivers Section
Rise Time
Fall Time
Dead band Time Between
High side and Synch Drive
Vcore Switcher Only
Oscillator Section (internal)
Osc Frequency
2.5V Regulator (Vout 2)
Reference Voltage
Reference Voltage
Dropout Voltage
Load Regulation
Line Regulation
Input bias current
Output Current
Current limit
Thermal Shutdown
1.5V Regulator (Vout 3)
Reference Voltage
Reference Voltage
Input bias current
Output Drive Current
Power Good Section
Core U.V lower trip point
Core U.V upper trip point
Core U.V Hysterises
Core O.V upper trip point
Core O.V lower trip point
Core O.V Hysterises
FB2 lower trip point
FB2 upper trip point
FB3 lower trip point
FB3 upper trip point
Power Good Output LO
Power Good Output HI
Fault (Overvoltage) Section
Core O.V upper trip point
Core O.V lower trip point
Vin2 upper trip point
Vin2 lower trip point
FAULT Output HI
Soft Start Section
Pull up resistor to 5V
Note 1: Vs refers to the set point voltage given in Table 1.
2
+2
100
uA
mV
nS
-2
Vdiff=10mV
200
uA
mV
%
-5
+5
Css=0.1 uF
10
CL=3000pF
CL=3000pF
70
70
nS
nS
CL=3000pF
200
nS
200
Khz
Vo2
Ta=25, Vout2 = FB2
1.260
1.260
0.6
0.5
0.2
V
V
V
%
%
uA
mA
mA
°
C
Io = 200 mA
1mA< Io <200 mA
3.1V<Vin2<4V, Vo=2.5V
2
200
300
145
Vo3
Ta=25, GATE3 = FB3
1.260
1.260
V
V
uA
mA
2
50
Vsen1 ramping down
Vsen1 ramping up
0.90Vs
0.92Vs
.02Vs
1.10Vs
1.08Vs
.02Vs
0.95
1.05
0.95
1.05
0.4
4.8
V
V
V
V
V
V
V
V
V
V
V
V
Vsen1 ramping up
Vsen1 ramping down
FB2 ramping down
FB2 ramping up
FB3 ramping down
FB3 ramping up
RL=3mA
RL=5K pull up to 5V
Vsen1 ramping up
Vsen1 ramping down
Vin2 ramping up
Vin2 ramping down
Io=3mA
1.17Vs
1.15Vs
4.3
4.2
10
V
V
V
V
V
OCset=0V , Phase=5V
23
K
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| US3021B | 制造商:UNISEM 制造商全稱:UNISEM 功能描述:5 BIT PROGRAMMABLE SYNCHRONOUS BUCK PLUS TRIPPLE LDO CONTROLLER |
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| US3021MCW | 制造商:UNISEM 制造商全稱:UNISEM 功能描述:5 BIT PROGRAMMABLE SYNCHRONOUS BUCK PLUS TRIPPLE LDO CONTROLLER |
| US3022 | 制造商:UNISEM 制造商全稱:UNISEM 功能描述:4 BIT PROGRAMMABLE SYNCHRONOUS BUCK PLUS FOUR LDO CONTROLLER |
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