參數(shù)資料
型號: LT1579CS8-5
廠商: LINEAR TECHNOLOGY CORP
元件分類: 基準(zhǔn)電壓源/電流源
英文描述: CAP 33UF 80V ELECT TG SMD
中文描述: 5 V FIXED POSITIVE LDO REGULATOR, 0.75 V DROPOUT, PDSO8
封裝: 0.150 INCH, PLASTIC, SO-8
文件頁數(shù): 11/20頁
文件大?。?/td> 352K
代理商: LT1579CS8-5
11
LT1579
PI
FU
CTIO
N
S
U
U
LBO1:
This is the open collector output of the low-battery
comparator LB1. This output pulls low when the com-
parator input drops below the threshold voltage. The
LBO1 output voltage is 1V when sinking 5mA, dropping
to under 200mV at 20
μ
A (see curve of Logic Flag Voltage
vs Current in the Typical Performance Characteristics).
This makes the LBO1 pin equally useful in driving both
bipolar and CMOS logic inputs with the addition of an
external pull-up resistor. It is also capable of driving
higher current devices, such as LEDs. This pin is inter-
nally clamped to 7V and –0.6V (one V
BE
). If unused, this
pin can be left open circuit. Device operation is unaffected
if this pin is not connected.
LBO2:
This is the open collector output of the low-battery
comparator LB2. This output pulls low when the com-
parator input drops below the threshold voltage. The
LBO2 output voltage is 1V when sinking 5mA, dropping
to under 200mV at 20
μ
A (see curve of Logic Flag Voltage
vs Current in the Typical Performance Characteristics).
This makes the LBO2 pin equally useful in driving both
bipolar and CMOS logic inputs with the addition of an
external pull-up resistor. It is also capable of driving
higher current devices, such as LEDs. This pin is
internally clamped to 7V and –0.6V (one V
BE
). If unused,
this pin can be left open circuit. Device operation is
unaffected if this pin is not connected.
BLOCK DIAGRA
M
W
+
+
LB1
+
LB2
1.5V REFERENCE
BIAS CURRENT
CONTROL
DROPOUT
DETECT
V
IN1
V
IN2
SHDN
SS
BIASCOMP
LBI1
LBI2
V
OUT
ADJ
BACKUP
DROPOUT
LBO1
LBO2
OUTPUT DRIVER
CONTROL
WARNING
FLAGS
1579 BD
E/A
INTERNAL
RESISTOR DIVIDER
FOR FIXED VOLTAGE
DEVICES ONLY
相關(guān)PDF資料
PDF描述
LT1579-3 300mA Dual Input Smart Battery Backup Regulator
LT1579CGN 300mA Dual Input Smart Battery Backup Regulator
LT1579CGN-3 300mA Dual Input Smart Battery Backup Regulator
LT1579CGN-3.3 300mA Dual Input Smart Battery Backup Regulator
LT1579CGN-5 300mA Dual Input Smart Battery Backup Regulator
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