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参数资料
| 型号： | LX1673-06CLQT |
| 厂商： | MICROSEMI CORP-ANALOG MIXED SIGNAL GROUP |
| 元件分类： | 稳压器 |
| 英文描述： | 1 A SWITCHING CONTROLLER, 690 kHz SWITCHING FREQ-MAX, PQCC20 |
| 封装： | PLASTIC, MLPQ-20 |
| 文件页数： | 1/15页 |
| 文件大小： | 302K |
| 代理商： | LX1673-06CLQT |
Microsemi
Integrated Products
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 1
Copyright
2000
Rev. 0.2j, 2002-07-17
WWW
.M
ic
ro
sem
i
.COM
LX1673
High Frequency PWM Regulator
PRELIMINARY
INTEGR A T E D
PR ODU C T S
DESCRI PTION
The LX1673 is a highly integrated
power supply controller IC featuring one
PWM switching regulator stage with an
additional onboard linear regulator
driver.
With several switching frequencies
available (up to 900kHz) the LX1673
can be optimized for both cost and PCB
space.
Utilizing
external
compensation, a wide selection of
external components can be chosen for
use
in
any
application
while
maintaining stable operation.
The LX1673 incorporates fully
programmable soft-start and power
sequence capabilities. The LDO and
PWM have independent enable pins.
With
onboard
gate
drivers,
the
switching PWM output is capable of
sourcing up to 15A. The LX1673 also
features an additional Linear Regulator
Controller output, which when coupled
with an inexpensive MOSFET is capable
of supplying up to an additional 5A for
I/O,
memory,
and
other
supplies
surrounding
today’s
micro-processor
designs.
Each regulator output voltage is
programmed via a simple voltage-divider
network.
Integrated hiccup-mode current limiting
is implemented utilizing MOSFET RDS(ON)
impedance. This enables the LX1673 to
monitor maximum current limit conditions
without the use of expensive current sense
resistors.
IMPORTANT:
For the most current data, consult MICROSEMI’s website: http://www.microsemi.com
KEY FEATU R ES
! Two Independently Regulated
Outputs
! Outputs As Low As 0.8V
Generated From An Internal 1%
Reference
! Integrated High Current MOSFET
Drivers
! 300KHz, 600KHz, and 900KHz
High Frequency Operation
Minimizes External Component
Requirements
! Soft-Start and Power Sequencing
Control
! Adjustable Linear Regulator Driver
Output
! No current-sense resistors
APPLICATIONS/BENEFIT
APPLICATIONS/BENEFITS
SS
S
! Video Card Power Supplies
! PC Peripherals
! Computer Add-On Cards
! 3.3V Power Conversion
! DDR Memory Termination
PRODUCT H I GHL IG HT
LX1673
LDGD
LDFB
LDDIS
DGND
AGND
LDVCC PWGD VC1 TDRV PGND
BDRV
VCCL
VCC
VS
CS
EAO
EA-
EA+
SS
DIS
V
OUT2
+3.3V
LDDIS
DIS
PWRGD
V
OUT1
+5V
+12V
+5V
+3.3V
1
2
3
4
5
6
789
10
11
12
13
14
15
16
17
18
19
20
PACKAGE ORDER INFO
TA (°
°°°C)
Switching
Frequency (kHz)
LQ
Plastic MLPQ
20-Pin
0 to 70
300
LX1673-03CLQ
0 to 70
600
LX1673-06CLQ
0 to 70
900
LX1673-09CLQ
Note: Available in Tape & Reel.
LL
XX
11
66
77
33
相关PDF资料 |
PDF描述 |
|---|---|
| LX1673-03CLQT | 1 A SWITCHING CONTROLLER, 345 kHz SWITCHING FREQ-MAX, PQCC20 |
| LX1673-09CLQT | 1 A SWITCHING CONTROLLER, 1035 kHz SWITCHING FREQ-MAX, PQCC20 |
| LX1676-CLQTR | 1.5 A SWITCHING CONTROLLER, 1100 kHz SWITCHING FREQ-MAX, PQCC38 |
| LX1676-CPWTR | 1.5 A SWITCHING CONTROLLER, 1100 kHz SWITCHING FREQ-MAX, PDSO38 |
| LX1732CDUT | 1 A SWITCHING REGULATOR, 135 kHz SWITCHING FREQ-MAX, PDSO8 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LX1673-06CLQ-TR | 制造商:Microsemi Corporation 功能描述:VOLT MODE PWM CNTRLR 0.8V TO 5.5V 1A 20MLPQ - Tape and Reel |
| LX1673-06CPW | 功能描述:IC REG DL BCK/LINEAR 20TSSOP RoHS:否 类别:集成电路 (IC) >> PMIC - 稳压器 - 线性 + 切换式 系列:- 标准包装:2,500 系列:- 拓扑:降压（降压）同步（3），线性（LDO）（2） 功能:任何功能 输出数:5 频率 - 开关:300kHz 电压/电流 - 输出 1:控制器 电压/电流 - 输出 2:控制器 电压/电流 - 输出 3:控制器 带 LED 驱动器:无 带监控器:无 带序列发生器:是 电源电压:5.6 V ~ 24 V 工作温度:-40°C ~ 85°C 安装类型:* 封装/外壳:* 供应商设备封装:* 包装:* |
| LX1673-06CPW-TR | 制造商:Microsemi Corporation 功能描述:VOLT MODE PWM CNTRLR 0.8V TO 5.5V 1A 20TSSOP - Tape and Reel |
| LX1673-09CLQ | 功能描述:IC REG DL BCK/LINEAR SYNC 20MLPQ RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - 线性 + 切换式 系列:- 标准包装:2,500 系列:- 拓扑:降压（降压）同步（2），线性（LDO）（1） 功能:任何功能 输出数:3 频率 - 开关:300kHz 电压/电流 - 输出 1:控制器 电压/电流 - 输出 2:控制器 电压/电流 - 输出 3:控制器 带 LED 驱动器:无 带监控器:无 带序列发生器:是 电源电压:4.5 V ~ 24 V 工作温度:-40°C ~ 85°C 安装类型:* 封装/外壳:28-TSSOP（0.173"，4.40mm 宽） 供应商设备封装:* 包装:带卷 (TR) 其它名称:ISL6402IVZ-TTR |
| LX1673-09CLQ-TR | 制造商:Microsemi Corporation 功能描述:VOLT MODE PWM CNTRLR 0.8V TO 5.5V 1A 20MLPQ - Tape and Reel |
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