參數(shù)資料
型號: LT1305
廠商: Linear Technology Corporation
英文描述: Micropower High Power DC/DC Converter with Low-Battery Detector
中文描述: 微高功率DC / DC轉(zhuǎn)換與低電池檢測器
文件頁數(shù): 2/8頁
文件大?。?/td> 236K
代理商: LT1305
2
LT1305
A
V
IN
Voltage .............................................................. 10V
SW1 Voltage............................................................ 25V
FB Voltage ............................................................... 10V
Shutdown Voltage ................................................... 10V
LBO Voltage............................................................. 10V
LBI Voltage .............................................................. 10V
Maximum Power Dissipation............................. 500mW
Operating Temperature Range.....................0
°
C to 70
°
C
Storage Temperature Range................. –65
°
C to 150
°
C
Lead Temperature (Soldering, 10 sec)..................300
°
C
U
G
W
A
W
U
W
A
R
BSOLUTE
XI
TI
S
U
PACKAGE/ORDER U
ORDER PART
NUMBER
Consult factory for Industrial and Military grade parts.
S8 PART MARKING
1305
LT1305CS8
T
JMAX
= 100
°
C,
θ
JA
= 80
°
C/W
SYMBOL
I
Q
PARAMETER
Quiescent Current
CONDITIONS
V
SHDN
= 0.5V, V
FB
= 2V
V
SHDN
= 1.8V
MIN
TYP
120
7
1.55
MAX
200
15
UNITS
G
G
μ
A
μ
A
V
V
V
mV
nA
kHz
%/
°
C
V
IN
Input Voltage Range
1.8
2.0
1.22
G
Feedback Voltage
Comparator Hysteresis
Feedback Pin Bias Current
Oscillator Frequency
Oscillator TC
Maximum Duty Cycle
Switch On Time
Output Line Regulation
Switch Saturation Voltage
Switch Leakage Current
Peak Switch Current
G
1.24
6
7
155
0.2
86
5.6
0.06
140
0.1
2
1.26
12.5
20
185
G
V
FB
= 1V
Current Limit Not Asserted
G
120
DC
t
ON
G
75
95
%
μ
s
Current Limit Not Asserted
1.8V < V
IN
< 6V
I
SW
= 1A
V
SW
= 5V, Switch Off
V
IN
= 2V
G
0.15
280
10
2.35
2.50
2.15
1.27
20
0.4
5
%/V
mV
μ
A
V
CESAT
G
G
1.35
1.20
1.15
1.21
A
A
A
V
G
V
IN
= 5V
(Note 2)
V
LBI
= 1V
I
LOAD
= 100
μ
A
V
LBI
= 1.3V, V
LBO
= 5V
LBI Trip Voltage
LBI Input Bias Current
LBO Output Low
LBO Leakage Current
Shutdown Pin High
Shutdown Pin Low
Shutdown Pin Bias Current
G
1.24
7
0.11
0.1
G
nA
V
μ
A
V
V
μ
A
μ
A
μ
A
G
G
V
SHDNH
V
SHDNL
I
SHDN
G
1.8
0.5
20
V
SHDN
= 5V
V
SHDN
= 2V
V
SHDN
= 0V
G
G
G
8.0
3.0
0.1
1
T
A
= 25
°
C, V
IN
= 2.0V, unless otherwise noted.
ELECTRICAL C
HARA TERISTICS
The
G
denotes specifications which apply over the 0
°
C to 70
°
C operating
temperature range.
Note 1:
Hysteresis specified is DC. Output ripple may be higher if output
capacitance is insufficient or capacitor ESR is excessive.
Note 2:
Low-battery detector comparator is inoperative when device is in
shutdown.
1
2
3
4
8
7
6
5
TOP VIEW
PGND
SW
V
IN
LBI
GND
LBO
SHDN
FB
S8 PACKAGE
8-LEAD PLASTIC SO
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