參數(shù)資料
型號： LM3350MMX
廠商： NATIONAL SEMICONDUCTOR CORP
元件分類： 穩(wěn)壓器
英文描述： Switched Capacitor Voltage Converter
中文描述： SWITCHED CAPACITOR CONVERTER, 1100 kHz SWITCHING FREQ-MAX, PDSO8
封裝： MINI, SOP-8
文件頁數(shù)： 2/8頁
文件大?。?/td> 243K
代理商： LM3350MMX
Absolute Maximum Ratings
(Note 1)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Maximum Input Voltage, Step-Down
Maximum Input Voltage, Step-Up
Power Dissipation (P
D
) (T
A
=25C,
(Note 2))
θ
ja
(Note 2)
Tj Max (Note 2)
5.5V
3.65V
500 mW
250C/W
150C
Storage Temperature
Lead Temperature (Soldering, 10
secs)
ESD Susceptibility (Note 3)
Not short circuit protected.
65C to +150C
260C
2kV
Operating Conditions
(Note 1)
Ambient Temperature Range
40C to + 85C
Electrical Characteristics
3/2 Step-Up Voltage Converter
Specifications in standard type face are for T
= 25C, and those with
boldface type
apply over
full operating temperature
range
. Unless otherwise specified, V
in
= 3.3V, V
Enable
= 3.3V, I
load
= 50 mA.
Symbol
Parameter
Conditions
V
out
NL
Output Voltage at
No Load
0.33
at 1MHz. I
load
= 0 A
V
out
FL
Output Voltage at
50 mA
0.33
at 1MHz. I
load
= 50 mA
V
in
Input Supply
Voltage Range
Typ
(Note 4)
5.0
Limits
(Note 5)
Units
V
C1, C2, C
in
and C
out
: 0.33μF, esr
≤
C1, C2, C
in
and C
out
: 0.33μF, esr
≤
4.7
V
3.3
V
2.5
3.65
V(Min)
V(Max)
μA
μA(Max)
mA
mA(Max)
(Max)
kHz
kHz(Min)
kHz(Max)
V
V(Min)
V(Max)
μA
μA(Max)
%
I
Q1
Quiescent Current
Shutdown Mode, V
Enable
= 0V,
I
load
=0 A; Current into pin V
low
0.025
3
I
Q2
Quiescent Current
Normal Mode, I
Ioad
= 0A; Current into
pin V
Iow
3.75
5
Z
out
Output Source
Impedance
I
load
= 50 mA
4.2
6.25
f
SW
Switching
Frequency
(Note 6)
800
500
1100
V
Enable
Enable Threshold
Voltage
1.7
1.0
2.5
I
Enable
Leakage Current
Current into ENABLE pin; ENABLE =
5V and all other pins at ground
0.025
1
P
η
Power Efficiency
90
Electrical Characteristics
2/3 Step-Down Voltage Converter
Specifications in standard type face are for T
= 25C, and those with
boldface type
apply over
full operating temperature
range
. Unless otherwise specified, V
high
= 5V, V
Enable
= 5V, I
load
= 50 mA.
Symbol
Parameter
Conditions
V
out
NL
Output Voltage at
No Load
0.33
at 1MHz. I
load
= 0 A
V
out
FL
Output Voltage at
50 mA
0.33
at 1MHz. I
load
=50 mA
V
in
Input Supply
Voltage Range
Typ
(Note 4)
3.3
Limits
(Note 5)
Units
V
C1, C2, C
in
and C
out
: 0.33μF, esr
≤
C1, C2, C
in
and C
out
: 0.33 μF, esr
≤
3.2
V
5
V
2.2
5.5
V(Min)
V(Max)
μA
μA(Max)
I
Q1
Quiescent Current
Shutdown Mode, V
Enable
= 0V,
I
load
=0 A; Current into pin V
high
0.25
3
L
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LM3351 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Switched Capacitor Voltage Converter
LM3351A WAF 制造商:Texas Instruments 功能描述:
LM3351AM E WAF 制造商:Texas Instruments 功能描述:
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