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參數(shù)資料
| 型號(hào)： | US3022 |
| 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(yè)數(shù)： | 2/7頁(yè) |
| 文件大?。?/td> | 61K |
| 代理商： | US3022 |
4-2
Rev. 1.0
11/2/99
US3022
ELECTRICAL SPECIFICATIONS
Unless otherwise specified ,these specifications apply over ,V12 = 12V, V5 = 5V and Ta=0 to 70
°
C. Typical values
refer to Ta =25
°
C. Low duty cycle pulse testing are used which keeps junction and case temperatures equal to the
ambient temperature.
PARAMETER
SYM
TEST CONDITION
Supply UVLO Section
UVLO Threshold-12V
Supply ramping up
UVLO Hysterises-12V
UVLO Threshold-5V
Supply ramping up
UVLO Hysterises-5V
Supply Current
Operating Supply Current
V12
V5
Switching Controllers; Vcore (Vsen 1) and AGP (Vsen 2)
VID Section (Vcore only)
DAC output voltage (note 1)
DAC Output Line Regulation
DAC Output Temp Variation
VID Input LO
VID Input HI
VID input internal pull-up
resistor to V5
Vsen2 Voltage
Select<0.8V
Select>2V
ABSOLUTE MAXIMUM RATINGS
V5 supply Voltage ........................................... 7V
V12 Supply Voltage ............................................ 20V
Storage Temperature Range ................................. -65 TO 150
°
C
Operating Junction Temperature Range .......... 0 TO 125
°
C
PACKAGE INFORMATION
28 PIN WIDE BODY PLASTIC SOIC (W)
θ
JA
=80
°
C/W
MIN
TYP
MAX
UNITS
10
0.6
4.4
0.3
V
V
V
V
6
30
mA
0.99Vs
Vs
0.1
0.5
1.01Vs
V
%
%
V
V
0.8
2
27
1.5
3.3
k
V
V
4
3
2
1
25
26
27
28
14
7
6
5
15
22
23
24
TOP VIEW
13
16
12
17
11
18
10
19
9
20
8
21
Drive2
Vsen5
Vref
VID3
VID2
VID1
VID0
PGood
Vsen2
Drive5
Select
SS
Fault / Rt
Vsen4
Drive4
Vaux
Gnd
Drive3
Vsen3
V5
Fb
Vsen1
OCSet
PGnd
LGate
Phase
UGate
V12
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