參數(shù)資料
型號： L6928D
廠商： 意法半導(dǎo)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調(diào)節(jié)
文件頁數(shù)： 3/9頁
文件大小： 197K
代理商： L6928D
3/9
L6928D
Table 5. Electrical Characteristics
(T
j
= 25°C, V
CC
= 3.6V unless otherwise specified)
Symbol
Parameter
(*) Guaranteed by design
Test Condition
Min
Typ
Max
Unit
V
cc
Operating input voltage
After Turn on
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
m
m
R
n
Low side Ron
V
cc
= 3.6V, I
lx
=100mA
215
I
lim
Peak current limit
V
cc
= 3.6V
1.2
A
Valley current limit
V
cc
= 3.6V
1.4
A
V
out
Output voltage range
V
fb
Vcc
V
f
osc
Oscillator frequency
1.4
MHz
f
sync
Sync mode clock (*)
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
25
μ
A
I
sh
Shutdown current
RUN to GND, V
cc
= 5.5V
0.2
μ
A
I
lx
LX leakage current (*)
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
0.6
0.607
V
I
fb
Feedback input current (*)
V
FB
= 0.6V
25
nA
RUN
V
run_H
RUN threshold high
1.3
V
V
run_L
RUN threshold low
0.4
V
I
run
RUN input current (*)
25
nA
SYNC/MODE FUNCTION
V
sync_H
Sync mode threshold high
1.3
V
V
sync_L
Sync mode threshold low
0.5
V
PGOOD SECTION
V
PGOOD
V
PGOOD
Power Good Threshold
V
OUT
= V
fb
90
%Vout
Power Good Hysteresis
V
OUT
= V
fb
4
%Vout
V
Pgood(low)
Power Good Low Voltage
Run to GND
0.4
V
I
LK-PGOOD
Power Good Leakage Current
(*)
V
PGOOD
= 3.6V
50
nA
PROTECTIONS
HOVP
Hard overvoltage threshold
V
OUT
= V
fb
10
%Vout
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