參數(shù)資料
型號(hào)： LM2700
廠商： National Semiconductor Corporation
英文描述： 600kHz/1.25MHz, 2.5A, Step-up PWM DC/DC Converter
中文描述： 600kHz/1.25MHz，包2.5a，升壓PWM型DC / DC轉(zhuǎn)換器
文件頁(yè)數(shù)： 4/17頁(yè)
文件大?。?/td> 478K
代理商： LM2700
Absolute Maximum Ratings
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
(Note 2)
V
IN
SW Voltage
FB Voltage
V
C
Voltage
SHDN Voltage (Note 1)
FSLCT (Note 1)
Maximum Junction Temperature
Power Dissipation(Note 3)
Lead Temperature
Vapor Phase (60 sec.)
12V
18V
7V
0.965V
≤
V
C
≤
1.565V
7V
12V
150C
Internally Limited
300C
215C
Infrared (15 sec.)
ESD Susceptibility (Note 4)
Human Body Model
Machine Model
220C
2kV
200V
Operating Conditions
Operating Junction
Temperature Range
(Note 5)
Storage Temperature
Supply Voltage
SW Voltage
40C to +125C
65C to +150C
2.2V to 12V
17.5V
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
=2.2V and I
L
= 0A, unless otherwise specified.
Symbol
Parameter
Conditions
Min
(Note 5)
Typ
(Note 6)
Max
(Note 5)
Units
I
Q
Quiescent Current
FB = 2.2V (Not Switching)
FSLCT = 0V
FB = 2.2V (Not Switching)
FSLCT = V
IN
V
SHDN
= 0V
1.2
2
mA
1.3
2
mA
5
20
μA
V
A
%/V
V
FB
I
CL
(Note 7)
%V
FB
/
V
IN
Feedback Voltage
Switch Current Limit
Feedback Voltage Line
Regulation
FB Pin Bias Current
(Note 9)
Input Voltage Range
Error Amp Transconductance
I = 5μA
Error Amp Voltage Gain
Maximum Duty Cycle
Minimum Duty Cycle
1.2285
2.55
1.26
3.6
0.02
1.2915
4.3
0.07
V
IN
= 2.7V (Note 8)
2.2V
≤
V
IN
≤
12.0V
I
B
0.5
40
nA
V
IN
g
m
A
V
D
MAX
D
MIN
2.2
40
12
290
V
155
135
85
15
30
600
1.25
0.008
0.5
0.02
80
0.6
0.6
2.05
1.95
150
45
μmho
V/V
%
FSLCT = Ground
FSLCT = Ground
FSLCT = V
IN
FSLCT = Ground
FSLCT = V
IN
V
SHDN
= V
IN
V
SHDN
= 0V
V
SW
= 18V
V
IN
= 2.7V, I
SW
= 2A
Output High
Output Low
78
%
f
S
Switching Frequency
480
1
720
1.5
1
1
20
150
kHz
MHz
I
SHDN
Shutdown Pin Current
μA
I
L
R
DSON
Th
SHDN
Switch Leakage Current
Switch R
DSON
(Note 10)
SHDN Threshold
μA
m
V
V
V
V
0.9
0.3
2.2
2.1
UVP
On Threshold
Off Threshold
Thermal Resistance
(Note 11)
1.95
1.85
θ
JA
TSSOP, package only
LLP, package only
C/W
Note 1:
This voltage should never exceed V
IN
.
Note 2:
Absolute maximum ratings are limits beyond which damage to the device may occur. Operating Ratings are conditions for which the device is intended to
be functional, but device parameter specifications may not be guaranteed. For guaranteed specifications and test conditions, see the Electrical Characteristics.
L
www.national.com
4
相關(guān)PDF資料
PDF描述
LM2703MF-ADJ Micropower Step-up DC/DC Converter with 350mA Peak Current Limit
LM2703MFX-ADJ Micropower Step-up DC/DC Converter with 350mA Peak Current Limit
LM2703 Micropower Step-up DC/DC Converter with 350mA Peak Current Limit
LM2704MF-ADJ Micropower Step-up DC/DC Converter with 550mA Peak Current Limit
LM2704MFX-ADJ Micropower Step-up DC/DC Converter with 550mA Peak Current Limit
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LM2700_04 制造商:NSC 制造商全稱:National Semiconductor 功能描述:600kHz/1.25MHz, 2.5A, Step-up PWM DC/DC Converter
LM2700LD-ADJ 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
LM2700LD-ADJ/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
LM2700LDX-ADJ 制造商:NSC 制造商全稱:National Semiconductor 功能描述:600kHz/1.25MHz, 2.5A, Step-up PWM DC/DC Converter
LM2700LDX-ADJ/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
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*