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參數(shù)資料
| 型號： | LX13097CSETR |
| 廠商： | MICROSEMI CORP-ANALOG MIXED SIGNAL GROUP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | SWITCHING CONTROLLER, PDSO5 |
| 封裝： | ROHS COMPLIANT, PLASTIC, SOT-23, 5 PIN |
| 文件頁數(shù)： | 6/12頁 |
| 文件大?。?/td> | 815K |
| 代理商： | LX13097CSETR |
Microsemi
Analog Mixed Signal Group
LX13097
Rev. 1.1
12/30/09
3
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
SW
GND
FB
VIN
EN
PIN DESCRIPTIONS
PIN SYMBOL
PIN DESCRIPTION
SW output. Junction of the internal high-side and low-side power MOSFETs, and
output inductor.
Ground Connection for Chip. Connect GND with large copper areas to the input and
output supply returns, and negative terminals of the input and output capacitors.
Error amplifier inverting input. This pin is connected via resistor dividers to the output of
the switching regulators to set the output DC voltage. A 332kohm resistor is recom-
mended to be connected from VOUT and FB .
Supply voltage input for switcher.
Enable input. Set this pin to GND or less than 0.4V will shut down the regulator.
Enable signal can not be high when VIN is low.
PARAMETER
SYM
Test Condition
M in
TYP
MAX
Units
Error Amplifiers
Feedback Input Bias Current
0.05
uA
SS
Soft Start time
Tss
500
uS
Current Limit
Current Limit Threshold
1.8
A
Thermal Shutdown
Thermal shutdown trip point
155
oC
Hysteresis
15
oC
Internal Switch
Vin=5V
400
Vin=3.3V
480
Vin=5V
300
Vin=3.3V
360
Enable
En low Threshold voltage
0.4
V
En high Threshold voltage
1.4
V
Rdson of Control FET
Rdson of Synchronous FET
mohm
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