參數(shù)資料
型號: LT1305CS8
廠商: LINEAR TECHNOLOGY CORP
元件分類: 穩(wěn)壓器
英文描述: Micropower High Power DC/DC Converter with Low-Battery Detector
中文描述: 1.2 A SWITCHING REGULATOR, 155 kHz SWITCHING FREQ-MAX, PDSO8
封裝: 0.150 INCH, PLASTIC, SO-8
文件頁數(shù): 1/8頁
文件大?。?/td> 236K
代理商: LT1305CS8
1
LT1305
Micropower High Power
DC/DC Converter with
Low-Battery Detector
I
2-Cell and 3-Cell to 5V Conversion
I
EL Panel Drivers
I
Portable Instruments
U
S
A
O
PPLICATI
U
A
O
PPLICATI
TYPICAL
V
IN
LBI
SHDN
GND
100k
1%
301k
1%
2 TO 3
CELLS
316k
1%
412k
1%
SHUTDOWN
C1
220
μ
F
C2
220
μ
F
LT1305
PGND
FB
LBO
SW
D1
LT1305 TA03
L1
10
μ
H
100k
+
C1, C2: AVX TPSE227010R0100
D1: MOTOROLA MBRS130LT3
L1: COILCRAFT D03316-103
V
OUT
5V
400mA
+
LOW BATTERY
GOES LOW AT
V
BAT
= 2.2V
LOAD CURRENT (mA)
1
E
80
90
10
100
1000
LT1305 TA02
70
60
V
IN
= 4.00V
V
IN
= 3.00V
V
IN
= 2.00V
V
IN
= 2.50V
Efficiency
D
The LT
1305 is a micropower step-up DC/DC converter
that uses Burst Mode
TM
operation. Similar to the LT1303,
the LT1305 features a 2A internal low-loss switch and can
deliver up to four times the output power of the LT1303.
Quiescent current is only 120
μ
A and the Shutdown pin
further reduces current to 10
μ
A. A low-battery detector
provides an open-collector output that goes low when the
input voltage drops below a preset level. The LT1305 is
available in an 8-pin SO, easing board space requirements.
U
ESCRIPTIO
S
FEATURE
I
5V at 400mA from 2V Input
I
Supply Voltage As Low As 1.8V
I
120
μ
A Quiescent Current
I
Low-Battery Detector
I
Low V
CESAT
Switch: 310mV at 2A Typ
I
Uses Inexpensive Surface Mount Inductors
I
8-Lead SO Package
2-Cell and 3-Cell to 5V/400mA DC/DC Converter
with Low-Battery Detect
Burst Mode is a trademark of Linear Technology Corporation
, LTC and LT are registered trademarks of Linear Technology Corporation.
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相關代理商/技術參數(shù)
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