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参数资料
| 型号： | LX1677CPW-TR |
| 厂商： | MICROSEMI CORP-ANALOG MIXED SIGNAL GROUP |
| 元件分类： | 稳压器 |
| 英文描述： | 1.5 A SWITCHING CONTROLLER, 1100 kHz SWITCHING FREQ-MAX, PDSO38 |
| 封装： | ROHS COMPLIANT, PLASTIC, TSSOP-38 |
| 文件页数： | 13/16页 |
| 文件大小： | 320K |
| 代理商： | LX1677CPW-TR |
LX1677
PRODUCTION DATA SHEET
Microsemi
Integrated Products Division
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 6
WWW
.Microse
m
i
.CO
M
AMD64 Processor VRM Controller
Copyright
2000
Rev 1.1, 2003-03-03
TM
ELECTRI CAL CHA RACTERI S TI CS ( C ONT)
Unless otherwise specified, the following specifications apply over the operating ambient temperature 0°C
≤ TA ≤ 70°C except where
otherwise noted and the following test conditions: VCC = 5V, VCCL = 5V, VIN = 12V, Switching Frequency = 500KHz.
LX1677
Parameter
Symbol
Test Conditions
Min
Typ
Max
Units
UVLO
VCC
Threshold
Hysteresis
VCC Rising
4.2
0.3
VIN
Threshold
Hysteresis
VIN Rising
5.5
0.3
V
OVER VOLTAGE PROTECTION
Over Voltage Threshold
-
1.85
V
UNDER VOLTAGE PROTECTION
Under Voltage Threshold
0.725
V
DAC
DAC Output Voltage Positioning
Offset
At No Load
-20
mV
1
≤ VDACOUT ≤1.4
1
Initial DACOUT Accuracy
0.925
≤ VDACOUT < 1
1.4 < VDACOUT
≤ 2
2
%
High Side Driver Current
IHOx
VCx - VSx = 5.0 V, Load = 3300pf at
<500nSec
1
A
Lower MOSFET Driver Current
ILOx
VCCL - PGN = 5.0 V, Load = 3300pf at
<500nSec
1.5
A
VID Logic High Threshold
0.5
1.3
2
V
VID Hysteresis
0.3
V
VOLTAGE I D ENTI FI CATI ON ( V I D ) CODE
VID[4:0]
VOUT (V)
VID[4:0]
VOUT (V)
00000
1.550
10000
1.150
00001
1.525
10001
1.125
00010
1.500
10010
1.100
00011
1.475
10011
1.075
00100
1.450
10100
1.050
00101
1.425
10101
1.025
00110
1.400
10110
1.000
00111
1.375
10111
0.975
01000
1.350
11000
0.950
01001
1.325
11001
0.925
01010
1.300
11010
0.900
01011
1.275
11011
0.875
01100
1.250
11100
0.850
01101
1.225
11101
0.825
01110
1.200
11110
0.800
01111
1.175
11111
Shutdown
EE
LL
EE
CC
TT
RR
IICC
AA
LL
SS
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相关代理商/技术参数 |
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