參數(shù)資料
型號: LT1304CS8
廠商: LINEAR TECHNOLOGY CORP
元件分類: 穩(wěn)壓器
英文描述: Micropower DC/DC Converters with Low-Battery Detector Active in Shutdown
中文描述: 1.2 A SWITCHING REGULATOR, 300 kHz SWITCHING FREQ-MAX, PDSO8
封裝: 0.150 INCH, PLASTIC, SO-8
文件頁數(shù): 4/16頁
文件大?。?/td> 345K
代理商: LT1304CS8
4
LT1304/LT1304-3.3/LT1304-5
TYPICAL PERFOR
M
A
CE CHARACTERISTICS
U
Load Transient Response
V
100mV/DIV
AC COUPLED
I
200mA
0
V
5V/DIV
100
μ
s/DIV
1304 G07
20
μ
s/DIV
1304 G08
V
100mV/DIV
AC COUPLED
Burst Mode
TM
Operation
I
L
500mA/DIV
V
IN
= 2.5V
V
OUT
= 5V
I
= 185mA
L = 22
μ
H
PI
FU
CTIO
N
S
U
U
LBI (Pin 1):
Low-Battery Detector Input. When voltage on
this pin is less than 1.17V, detector output is low.
LBO (Pin 2):
Low-Battery Detector Output. Open collector
can sink up to 500
μ
A. Low-battery detector remains active
when device is shut down.
V
IN
(Pin 3):
Input Supply. Must be bypassed close (<0.2")
to the pin. See required layout in the Typical Applications.
SW (Pin 4):
Collector of Power NPN. Keep copper traces on
this pin short and direct to minimize RFI.
GND (Pin 5):
Device Ground. Must be low impedance;
solder directly to ground plane.
I
LIM
(Pin 6):
Current Limit Set Pin. Float for 1A peak switch
current; a resistor to ground will lower peak current.
SHDN (Pin 7):
Shutdown Input. When low, switching
regulator is turned off. The low-battery detector remains
active. The SHDN input should not be left floating. If SHDN
is not used, tie the pin to V
IN
.
FB/SENSE (Pin 8):
On the LT1304 (adjustable) this pin
goes to the comparator input. On the fixed-output ver-
sions, the pin connects to the resistor divider which sets
output voltage. The divider is disconnected from the pin
during shutdown.
Burst Mode is a trademark of Linear Technology Corporation.
相關(guān)PDF資料
PDF描述
LT1304CS8-3.3 Micropower DC/DC Converters with Low-Battery Detector Active in Shutdown
LT1304CS8-5 Micropower DC/DC Converters with Low-Battery Detector Active in Shutdown
LT1306ES8 Synchronous, Fixed Frequency Step-Up DC/DC Converter
LT1306 Synchronous, Fixed Frequency Step-Up DC/DC Converter
LT1307BCMS8 Single Cell Micropower 600kHz PWM DC/DC Converters
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