參數(shù)資料
型號: IRU3027CW
廠商: International Rectifier
英文描述: 5-BIT PROGRAMMABLE SYNCHRONOUS BUCK CONTROLLER IC WITH TRIPLE LDO CONTROLLER
中文描述: 5位可編程同步降壓控制器芯片,三聯(lián)LDO控制器
文件頁數(shù): 3/10頁
文件大小: 66K
代理商: IRU3027CW
IRU3027
3
Rev. 1.5
07/17/02
www.irf.com
Note 1:
Vs refers to the set point voltage given in Table 1.
Error Comparator Section
Input Bias Current
Input Offset Voltage
Delay to Outout
Current Limit Section
CS Threshold Set Current
CS 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
1.8V Regulator (V
SEN
4)
V
SEN
Voltage
V
SEN
Voltage
Input Bias Current
Output Drive Current
1.5V Regulator (V
SEN
3)
V
SEN
Voltage
V
SEN
Voltage
Input Bias Current
Output Drive Current
Power Good Section
V
SEN
1 UV Lower Trip Point
V
SEN
1 UV Upper Trip Point
V
SEN
1 UV Hysterises
V
SEN
1 HV Upper Trip Point
V
SEN
1 HV Lower Trip Point
V
SEN
1 HV Hysterises
V
SEN
2 Trip Point
V
SEN
3 Trip Point
V
SEN
4 Trip Point
Power Good Output LO
Power Good Output HI
Fault (Overvoltage) Section
Core OV Upper Trip Point
Core OV Lower Trip Point
Fault Output HI
Soft-Start Section
Pull-Up Resistor to 5V
PARAMETER
SYM TEST CONDITION MIN TYP MAX UNITS
-2
-5
50
50
μ
A
mV
ns
μ
A
mV
%
ns
ns
ns
KHz
V
V
μ
A
mA
V
V
μ
A
mA
V
V
V
V
V
V
V
V
V
V
V
V
V
V
μ
A
2
+2
100
+5
2
2
200
10
70
70
200
217
1.800
1.800
1.500
1.500
0.90Vs
0.92Vs
0.02Vs
1.10Vs
1.08Vs
0.02Vs
1.100
2.560
0.920
1.320
0.920
1.140
0.4
4.8
1.17Vs
1.15Vs
10
20
V
O
4
V
O
3
V
DIFF
=10mV
Css=0.1
μ
F
C
L
=3000pF
C
L
=3000pF
C
L
=3000pF
Rt=Open
T
A
=25
8
C, Drive4=V
SEN
4
T
A
=25
8
C, Drive3=V
SEN
3
V
SEN
1 Ramping Down
V
SEN
1 Ramping Up
V
SEN
1 Ramping Up
V
SEN
1 Ramping Down
Select <0.8V
Select >2V
Fix=Gnd
Fix=Open
Fix=Gnd
Fix=Open
R
L
=3mA
R
L
=5K, Pull-Up to 5V
V
SEN
1 Ramping Up
V
SEN
1 Ramping Down
Io=3mA
OCSet=0V, Phase=5V
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