參數(shù)資料
型號: L6920DBTR
廠商: 意法半導(dǎo)體
英文描述: Synchronous rectifier step up converter
中文描述: 同步整流轉(zhuǎn)換器的步驟
文件頁數(shù): 5/16頁
文件大小: 373K
代理商: L6920DBTR
L6920DB
Electrical characteristics
5/16
3
Electrical characteristics
Table 4. Electrical characteristcs
(V
IN
= 2V, FB = GND, T
J
= 25°C unless otherwise specified)
Symbol
Parameter
Test condition
Min
Typ
Max
Unit
V
CC
Section
V
IN
Minimum Start Up Input
Voltage
V
out
= 3.3V
0.8
V
I
q
Quiescent Current
I
l
= 0 mA, FB = 1.4V, V
out
= 3.3V
LBI = SHDN = 2V
9
12
μ
A
I
l
= 0 mA, FB = 1.4V, V
out
= 5V
LBI = SHDN = 2V
11
15
μ
A
I
sd
Shut Down Current
V
in
= 5V, I
l
= 0 mA
0.1
1
μ
A
Irev
Reverse battery current
V
in
= -4V
0.1
1
μ
A
Power section
R
on-N
Active switch ON resistance
300
m
R
on-P
Synchronous switch ON
resistance
300
m
Control section
V
ou
t
Output voltage
FB = OUT, I
l
= 0 mA
3.2
3.3
3.4
V
FB = GND, I
l
= 0 mA
4.9
5
5.1
V
Output voltage range
External divider
1.8
5.2
V
V
LBI
LBI threshold
1.23
V
V
LBO
LBO
logic LOW
I
sink
= 1mA
0.2
0.4
V
I
lim
LX switch current limit
0.7
0.8
0.9
A
T
onmax
Maximum on time
V
out
= 3.3V
3.75
5
6.25
μ
s
T
offmin
Minimum off time
V
out
= 3.3V
0.75
1
1.25
μ
s
SHDN
SHDN
logic LOW
0.2
V
SHDN
logic HIGH
0.6
V
V
ref
Reference Voltage
1.18
1.23
1.27
V
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L6920DTR 1V HIGH EFFICIENCY SYNCRONOUS STEP UP CONVERTER
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