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參數(shù)資料
| 型號(hào)： | LX13088CLD |
| 廠商： | MICROSEMI CORP-ANALOG MIXED SIGNAL GROUP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | DUAL SWITCHING CONTROLLER, PDSO10 |
| 封裝： | 3 X 3 MM, ROHS COMPLIANT, PLASTIC, DFN-10 |
| 文件頁(yè)數(shù)： | 5/12頁(yè) |
| 文件大?。?/td> | 422K |
| 代理商： | LX13088CLD |
LX13088
PRODUCTION DATASHEET
Microsemi
Analog Mixed Signal Group
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 2
Copyright
2010
Rev. 1.1, 2010-06-08
Dual 1A Step-Down Converters
TM
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11
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88
ABSOLUTE MAXIMUM RATINGS
PACKAGE PIN OUT
PVIN, AVIN to AGND, PGND......................................................................-0.3 to +7.0 V
SW1 and SW2 to AGND, PGND .................................................. PGND -2V to xVIN+2V
All other pins to AGND.................................................................... -0.3V to xVIN + 0.3V
Operating Junction Temperature Range .......................................................... 00C to 1500C
Storage Temperature Range..........................................................................–650C to 1500C
Package
Peak Temp. for Solder Reflow (40 seconds maximum exposure) ..260°C (+0 -5)0C
Notes: 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. PGND must be wired to AGND
externally.
LD PACKAGE
(Top View)
Marking
RoHS / Pb-free 100% Matte Tin Finish
FUNCTIO N AL PIN DESCRIP T ION
Name
Pin #
Description
FB2
1
Feedback from VO2. Connect voltage divider to the load side of VO2 output inductor-capacitor filter.
AVIN
2
Analog Input. Input to power the internal circuitry of the device, connect to PVIN through a 10 resistor and
bypass through a 1μF ceramic capacitor between this pin and PGND, as close to the LX13088 as possible.
PVIN
3
Control MOSFET switch power inputs. Connect a 10F ceramic capacitor between this pin and PGND, as
close to the LX13088 as possible.
SW2
4
Converter 2 synchronous buck switching output. Connect to VO2 inductor.
PGND
5
Power Ground Connection. Synchronous rectifier MOSFET source. Provide a star connection between this
pin, VO1, VO2 filter capacitor returns, VIN input capacitor return, and AGND. Keep the star connection as
close to the LX13088 IC as possible.
SW1
6
Converter 1 synchronous buck switching output. Connect to VO1 inductor.
E/S
7
Enable/Synchronization. Pulling this pin high statically enables the LX13088 and pulling the pin low
statically will shut down the LX13088. Applying a pulse to this pin will synchronize SW1 and SW2 switching
frequency to the external clock frequency.
POR
8
Power On Reset output pin. Monitors FB1, FB2 output voltage levels and VIN. POR is pulled low if an
output voltage droop is detected on FB1 or FB2 or VIN, and is Hi-Z during normal operation.
VMON
9
Voltage Monitor – Supervisor for one external voltage (could be input voltage). The POR output is triggered
if this output falls below the VMON threshold.
FB1
10
Feedback from VO1. Connect voltage divider to the load side of VO1 output inductor-capacitor filter.
AGND
PAD
Analog Ground. Connect the exposed pad on the bottom of the package to the GND plane for a thermal
heat sink.
3088
Date/Lot Code
MSC
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