參數(shù)資料
型號： LM3311SQX
廠商： NATIONAL SEMICONDUCTOR CORP
元件分類： 穩(wěn)壓器
英文描述： Step-Up PWM DC/DC Converter with Integrated LDO, Op-Amp, and Gate Pulse Modulation Switch
中文描述： 2.6 A SWITCHING REGULATOR, 1280 kHz SWITCHING FREQ-MAX, QCC24
封裝： LLP-24
文件頁數(shù)： 6/29頁
文件大?。?/td> 2052K
代理商： LM3311SQX
Absolute Maximum Ratings
(Note 1)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
V
IN
SW Voltage
FB Voltage
V
C
Voltage (Note 2)
SHDN Voltage
FREQ
AV
IN
Amplifier Inputs/Output
LV
IN
ADJ Voltage
V
OUT
VGH Voltage
VGHM Voltage
VFLK, VDPM, V
DD
Voltage
CE Voltage (Note 2)
RE Voltage
7.5V
21V
V
IN
1.265V
±
0.3V
7.5V
V
IN
12V
Rail-to-Rail
7.5V
LV
IN
LV
IN
31V
VGH
7.5V
1.265 + 0.3V
VGH
Maximum Junction
Temperature
Power Dissipation(Note 3)
Lead Temperature
Vapor Phase (60 sec.)
Infrared (15 sec.)
ESD Susceptibility (Note 4)
Human Body Model
150C
Internally Limited
300C
215C
220C
2kV
Operating Conditions
Operating Junction
Temperature Range (Note 5)
Storage Temperature
Supply Voltage
Maximum SW Voltage
VGH Voltage Range
Op-Amp Supply, AV
IN
LDO Supply, LV
IN
40C to +125C
65C to +150C
2.5V to 7V
20V
5V to 30V
4V to 12V
2.5V to 7V
Electrical Characteristics
Specifications in standard type face are for T
= 25C and those with
boldface type
apply over the full
Operating Tempera-
ture Range
( T
J
= 40C to +125C). Unless otherwise specified, V
IN
= LV
IN
= 2.5V and I
L
= 0A.
Symbol
Parameter
Conditions
Min
(Note 5)
Typ
(Note 6)
690
Max
(Note 5)
1100
0.5
8.5
2.8
4.0
1.287
Units
I
Q
Quiescent Current
FB = 2V (Not Switching)
V
SHDN
= 0V
μA
0.04
660kHz Switching
1.28MHz Switching
2.1
3.1
1.263
mA
V
FB
%V
FB
/
V
IN
Feedback Voltage
Feedback Voltage Line
Regulation
Switch Current Limit (Note 7)
FB Pin Bias Current (Note 9)
SS Pin Current
SS Pin Voltage
Input Voltage Range
Error Amp Transconductance
I = 5μA
Error Amp Voltage Gain
Maximum Duty Cycle
1.231
V
2.5V
≤
V
IN
≤
7V
-0.26
0.089
0.42
%/V
I
CL
I
B
I
SS
V
SS
V
IN
g
m
A
V
D
MAX
(Note 8)
2.0
2.6
27
11
1.24
A
nA
μA
V
V
160
13.5
1.28
7
133
8.5
1.20
2.5
26
74
69
91
89
660
1.28
8
1
0.03
0.18
μmho
V/V
f
S
= 660kHz
f
S
= 1.28MHz
FREQ = Ground
FREQ = V
IN
V
SHDN
= 2.5V
V
SHDN
= 0.3V
V
SW
= 20V
I
SW
= 500mA
Output High, V
IN
= 2.5V to
7V
Output Low, V
IN
= 2.5V to 7V
80
80
440
1.0
%
f
S
Switching Frequency
760
1.5
13.5
2
5
0.35
kHz
MHz
μA
I
SHDN
Shutdown Pin Current
I
L
R
DSON
Th
SHDN
Switch Leakage Current
Switch R
DSON
SHDN Threshold
μA
V
1.4
0.4
L
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LM3311SQX/NOPB 功能描述:DC/DC 開關(guān)控制器 RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK
LM3311SQX-HIOP 功能描述:DC/DC 開關(guān)控制器 RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK
LM3311SQX-HIOP/NOPB 功能描述:DC/DC 開關(guān)控制器 RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK
LM33164D 制造商:Motorola Inc 功能描述:33164D
LM331A 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Precision Voltage-to-Frequency Converters
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