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参数资料
| 型号： | LX1672-03CPW-TR |
| 厂商： | MICROSEMI CORP-ANALOG MIXED SIGNAL GROUP |
| 元件分类： | 稳压器 |
| 英文描述： | 1 A DUAL SWITCHING CONTROLLER, 345 kHz SWITCHING FREQ-MAX, PDSO28 |
| 封装： | ROHS COMPLIANT, PLASTIC, TSSOP-28 |
| 文件页数： | 15/20页 |
| 文件大小： | 382K |
| 代理商： | LX1672-03CPW-TR |
PRODUCTION DATA SHEET
Microsemi
Integrated Products Division
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 4
Copyright
2000
Rev. 1.0, 2005-08-10
WWW
.Microse
m
i
.CO
M
LX1672
Multiple Output LoadSHARE PWM
TM
ELECTRICAL CHA RACTERISTICS
Unless otherwise specified, the following specifications apply over the operating ambient temperature 0
°C
≤ T
A ≤ 70°C except where
otherwise noted and the following test conditions: VCC = 5V, VCCL = 5V, VCX = 12V, HOX = LOX = 3000pF Load.
LX1672
Parameter
Symbol
Test Conditions
Min
Typ
Max
Units
SWITCHING REGULATORS
Input Voltage
VCC
4.5
5.5
V
Input Voltage
VCCL, VCX
12
V
Operation Current
ICC
Static and Dynamic
10
mA
TA = 25°C
0.792
0.8
0.808
Reference Voltage
VSS
0°C < TA < 70°C
0.784
0.816
V
Line Regulation (Note 2)
-1
1
%
Load Regulation (Note 2)
-1
1
%
Minimum Pulse Width
TSSOP Package
250
nS
Minimum Pulse Width
MLPQ Package
150
nS
Maximum Duty Cycle
LX1672-03 Load = 3000pF
85
%
Maximum Duty Cycle
LX1672-05 Load = 3000pF
75
%
Maximum Duty Cycle
LX1672-06 Load = 3000pF
70
%
ERROR AMPLIFIERS
Input Offset Voltage
Vos
Common Mode Input Voltage = 1V
-6.0
6.0
mV
DC Open Loop Gain
70
dB
Unity Gain Bandwidth
UGBW
16
MHz
High Output Voltage
VOH
I Source = 2mA
3.5
3.8
V
Low Output Voltage
VOL
I Sink = 10A
200
400
mV
Input Common Mode Range
Input Offset Voltage < 20mV
.1
3.5
V
Input Bias Current
IIN
0 and 3.5 V Common Mode Input Voltage
100
nA
CURRENT SENSE
Current Sense Bias Current
ISET
VCSX = VVSX – 0.3V , VVSX = 5V
45
50
55
μA
Trip Threshold
VTRIP
Referenced to VSX , VVSX = 5V
260
300
340
mV
Current Sense Delay
TCSD
350
nS
Current Sense Comparator
Operating Current
ICSX
Current into VSX pins
2
5
mA
OUTPUT DRIVERS – N-CHANNEL MOSFETS
Low Side Driver Operating Current
IVCCL
Static
2.5
mA
High Side Driver Operating Current
IVCX
Static
3
mA
Drive Rise Time, Fall Time
TRF
CL = 3000pF
50
nS
High Level Output Voltage
VDH
ISOURCE = 20mA, VCCL = 12V
10
11
V
Low Level Output Voltage
VDL
ISINK = 20mA, VCCL = 12V
0.15
0.25
V
OSCILLATOR
PWM Switching Frequency
LX1672-03
255
300
345
KHz
PWM Switching Frequency
LX1672-05
425
500
575
KHz
PWM Switching Frequency
FSW
LX1672-06
510
600
690
KHz
Ramp Amplitude
VRAMP
1.25
VPP
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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|---|---|
| LX1672-05CPW | 功能描述:IC REG CTRLR BUCK PWM VM 28TSSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器 系列:LoadSHARE™ 特色产品:LM3753/54 Scalable 2-Phase Synchronous Buck Controllers 标准包装:1 系列:PowerWise® PWM 型:电压模式 输出数:1 频率 - 最大:1MHz 占空比:81% 电源电压:4.5 V ~ 18 V 降压:是 升压:无 回扫:无 反相:无 倍增器:无 除法器:无 Cuk:无 隔离:无 工作温度:-5°C ~ 125°C 封装/外壳:32-WFQFN 裸露焊盘 包装:Digi-Reel® 产品目录页面:1303 (CN2011-ZH PDF) 其它名称:LM3754SQDKR |
| LX1672-05CPW-TR | 制造商:Microsemi Corporation 功能描述:MOSFET DRVR 0.8V 1A 3-OUT HI/LO SIDE HALF BRDG NON-INV 28TSS - Tape and Reel |
| LX1672-06CLQ | 功能描述:IC REG CTRLR BUCK PWM VM 38MLPQ RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器 系列:LoadSHARE™ 标准包装:4,000 系列:- PWM 型:电压模式 输出数:1 频率 - 最大:1.5MHz 占空比:66.7% 电源电压:4.75 V ~ 5.25 V 降压:是 升压:无 回扫:无 反相:无 倍增器:无 除法器:无 Cuk:无 隔离:无 工作温度:-40°C ~ 85°C 封装/外壳:40-VFQFN 裸露焊盘 包装:带卷 (TR) |
| LX1672-06CLQ-TR | 制造商:Microsemi Corporation 功能描述:MOSFET DRVR 0.8V 1A 3-OUT HI/LO SIDE HALF BRDG NON-INV 38MLP - Tape and Reel |
| LX1673 | 制造商:MICROSEMI 制造商全称:Microsemi Corporation 功能描述:High Frequency PWM Regulator |
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