參數(shù)資料
型號(hào): LT1304-3.3
廠商: Linear Technology Corporation
英文描述: Micropower DC/DC Converters with Low-Battery Detector Active in Shutdown(微功耗,3.3V固定輸出電壓,步升DC/DC變換器(關(guān)斷時(shí)電池低壓檢測(cè)器仍然工作))
中文描述: 微功率DC / DC轉(zhuǎn)換與低電池檢測(cè)器關(guān)機(jī)活動(dòng)(微功耗,3.3V的固定輸出電壓,步升直流/直流變換器(關(guān)斷時(shí)電池低壓檢測(cè)器仍然工作))
文件頁(yè)數(shù): 4/16頁(yè)
文件大小: 298K
代理商: LT1304-3.3
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
LT1304-5 Micropower DC/DC Converters with Low-Battery Detector Active in Shutdown
LT1304 Micropower DC/DC Converters with Low-Battery Detector Active in Shutdown
LT1304CS8 Micropower DC/DC Converters with Low-Battery Detector Active in Shutdown
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
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LT1304-5 制造商:LINER 制造商全稱:Linear Technology 功能描述:Micropower DC/DC Converters with Low-Battery Detector Active in Shutdown
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