參數(shù)資料
型號： L6928TR
廠商： 意法半導體
英文描述： High efficiency monolithic synchronous step down regulator
中文描述： 高效率單片同步降壓穩(wěn)壓器
文件頁數(shù)： 5/16頁
文件大?。?/td> 167K
代理商： L6928TR
L6928
Electrical characteristics
5/16
3
Electrical characteristics
Table 4. Electrical characteristcs
(T
J
= 25°C, V
IN
= 3.6V unless otherwise specified)
(1)
Symbol
Parameter
Test condition
Min
Typ
Max
Unit
V
cc
Operating input voltage
After turn on
(1)
2
5.5
V
V
cc ON
Turn On threshold
2.2
V
V
cc OFF
Turn Off threshold
2
V
V
cc hys
Hysteresis
100
mV
R
p
High side Ron
V
cc
= 3.6V, I
lx
=100mA
240
300
m
(1)
400
R
n
Low side Ron
V
cc
= 3.6V, I
lx
=100mA
215
300
m
(1)
400
I
lim
Peak current limit
V
cc
= 3.6V
1
1.2
1.5
A
(1)
0.85
1.65
Valley current limit
V
cc
= 3.6V
1
1.4
1.7
A
(1)
0.9
1.85
V
out
Output voltage range
V
fb
Vcc
V
f
osc
Oscillator frequency
1.4
MHz
f
sync
Sync mode clock
(2)
1
2
MHz
DC characteristics
I
q
Quiescent current (low
noise mode)
V
sync
= 0V, no load,
V
FB
> 0.6V
230
μ
A
Quiescent current (low
cunsumption mode)
V
sync
= V
cc
, no load,
V
FB
> 0.6V
(1)
25
50
μ
A
I
sh
Shutdown current
RUN to GND, V
cc
= 5.5V
0.2
μ
A
I
lx
LX leakage current
(2)
RUN to GND, V
LX
= 5.5V,
V
cc
= 5.5V
1
μ
A
RUN to GND, V
LX
= 0V,
V
cc
= 5.5V
1
μ
A
Error amplifier characteristics
V
fb
Voltage feedback
0.593
0.600
0.607
V
(1)
0.590
0.600
0.610
V
I
fb
Feedback input current
(2)
V
FB
= 0.6V
25
nA
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