參數(shù)資料
型號(hào)： LX1734-CSET
廠商： MICROSEMI CORP-ANALOG MIXED SIGNAL GROUP
元件分類(lèi)： 穩(wěn)壓器
英文描述： 1 A SWITCHING CONTROLLER, 1400 kHz SWITCHING FREQ-MAX, PDSO5
封裝： PLASTIC, SOT-23, 5 PIN
文件頁(yè)數(shù)： 1/4頁(yè)
文件大?。?/td> 66K
代理商： LX1734-CSET
Microsemi
Linfinity Microelectronics Division
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 1
Copyright
2000
Rev. 0.2, 2001-02-15
WWW.
Microsemi
.COM
LX1734
1.2MHz Inverting DC/DC Converter
PRELIMINARY
A
M I CROS E M I
COM P A N Y
The
LX1734
is
an
inverting
DC/DC current-mode controller. With
a 1A integrated switch, the LX1734
can generate large output currents in a
small
footprint.
The
LX1734
minimizes external component size
and cost by implementing a high
switching frequency of 1.2MHz, while
generating -5V at 250mA or -12V at
100mA.
The LX1734 operates in a dual
inductor inverting topology that filters
both the input side and output side
current.
Very low output voltage
ripple
approaching
1mVP-P
can
be
achieved when used in conjunction with
ceramic output capacitors.
Fixed frequency operation ensures a
clean output free from low frequency
noise typically present with charge pump
solutions. The low impedance output
remains within 1% of nominal during
large load steps. The 20V switch allows
high voltage outputs to be generated.
The LX1734 is available in the space
saving 5-lead SOT-23 package, enabling
a complete inverter function that utilizes
only 0.3 inches square of PCB space.
IMPORTANT: For the most current data, consult
MICROSEMI’s website: http://www.microsemi.com