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参数资料
| 型号： | LX1734-CLM |
| 厂商： | MICROSEMI CORP-ANALOG MIXED SIGNAL GROUP |
| 元件分类： | 稳压器 |
| 英文描述： | 0.7 A SWITCHING REGULATOR, 1400 kHz SWITCHING FREQ-MAX, PDSO6 |
| 封装： | 3 X 3 MM, EXPOSED PAD, PLASTIC, MO-229, 6 PIN |
| 文件页数： | 2/8页 |
| 文件大小： | 271K |
| 代理商： | LX1734-CLM |
Microsemi
Microsemi Integrated Products
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 2
Copyright
2002
Rev. 3.0, 2002-09-23
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LX1734
1.0MHz Inverting DC/DC Converter
I N T E GRA T ED
PR ODU C T S
ABSOLUTE MAXIMUM RATINGS
Supply Voltage (VIN), Shutdown (SD ) .................................................... 0 to 10V
SW Voltage....................................................................................... -0.4V to 20V
NFB Voltage .................................................................................................... -2V
Current Into NFB Pin................................................................................... ±1mA
Operating Temperature Range ............................................................0°C to 85°C
Maximum Junction Temperature ................................................................. 125°C
Storage Temperature ..................................................................... -65°C to 150°C
Lead Temperature (Soldering, 10sec) ...........................................................300°C
Note: Exceeding these ratings could cause damage to the device. All voltages are with respect to
Ground. Currents are positive into, negative out of specified terminal
.
THERMAL DATA
LM
Plastic LM 6-Pin
THERMAL RESISTANCE
-JUNCTION TO AMBIENT,
θ
JC
8
°C/W
Junction Temperature Calculation: TJ = TA + (PD x θJC).
The
θJC numbers are guidelines for the thermal performance of the device/pc-board
system. All of the above assume no ambient airflow.
PACKAGE PIN OUT
SW
GND
NFB
SD
V
IN
N/C*
**
LM PACKAGE
(Top View)
* Not Internally Connected.
** Package heatsink should
be connected to ground or
left floating.
FUNCTIO N AL PIN DESCRIP T ION
NAME
DESCRIPTION
SW
Power Switch Pin
GND
Common ground reference
NFB
Feedback Pin - Connect to a resistive divider in order to set the output voltage. Feedback threshold is -1.235V.
Given the typical NFB bias current (INFB) of 4A flows out of the pin, the suggested value for R2 is 10K. Given
R2, set R1 according to:
()
NFB
I
R
VOUT
R
+
=
2
235
.
1
235
.
1
VIN
Input Supply – Input pin must be locally bypassed.
SD
Shutdown, Connected to >2V, device is active.
PP
AA
CC
KK
AA
GG
EE
DD
AA
TT
AA
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