參數(shù)資料
型號(hào)： LM3355MMX-4.1
廠商： NATIONAL SEMICONDUCTOR CORP
元件分類： 穩(wěn)壓器
英文描述： Regulated 50mA Buck-Boost Switched Capacitor DC/DC Converter
中文描述： SWITCHED CAPACITOR REGULATOR, 1400 kHz SWITCHING FREQ-MAX, PDSO8
封裝： MSOP-8
文件頁(yè)數(shù)： 3/9頁(yè)
文件大?。?/td> 191K
代理商： LM3355MMX-4.1
Absolute Maximum Ratings
(Note 1)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
All Pins
Power Dissipation (T
A
= 25C)
(Note 2)
T
JMAX
(Note 2)
θ
JA
(Note 2)
Storage Temperature
Lead Temperature (Soldering, 5 sec.)
0.5V to 5.6V
Internally Limited
150C
250C/W
65C to +150C
260C
ESD Rating (Note 3)
Human Body Model
Machine Model
1.5 kV
100V
Operating Ratings
Input Voltage (V
IN
)
Output Voltage (V
OUT
)
Ambient Temperature (T
A
) (Note 2)
Junction Temperature (T
J
) (Note 2)
2.5V to 5.5V
1.8V to 4.1V
40C to +85C
40C to +125C
Electrical Characteristics
Limits in standard typeface are for T
A
= 25C, and limits in
boldface
type apply over the full operating temperature range of
40C
≤
T
A
≤
85C. Unless otherwise specified: C
1
= C
2
= 0.33 μF; C
IN
= 10 μF; C
OUT
= 10 μF; C
FIL
= 1 μF; V
IN
= 3.5V.
Parameter
Conditions
LM3355-4.1
Output Voltage (V
OUT
)
V
IN
= 3.5V; I
LOAD
= 50 mA
2.6V
<
V
IN
<
5.5V;
1 mA
<
I
LOAD
<
50 mA
2.5V
<
V
IN
<
5.5V;
1 mA
<
I
LOAD
<
40 mA
Efficiency
I
LOAD
= 10 mA
I
LOAD
= 50 mA
Output Voltage Ripple
(Peak-to-Peak)
C
OUT
= 10 μF ceramic
LM3355-ALL OUTPUT VOLTAGE VERSIONS
Operating Quiescent Current
Measured at Pin V
IN
;
I
LOAD
= 0A (Note 6)
Shutdown Quiescent Current
SD Pin at 0V (Note 7)
Switching Frequency
SD Input Threshold Low
2.5V
<
V
IN
<
5.5V
SD Input Threshold High
2.5V
<
V
IN
<
5.5V
SD Input Current
Measured at SD Pin;
SD Pin = V
IN
= 5.5V
Min
(Note 5)
Typ
(Note 4)
Max
(Note 5)
Units
4.038
4.1
4.162
V
3.977/
3.936
4.1
4.223/
4.264
3.977/
3.936
4.1
4.223/
4.264
80
75
%
I
LOAD
= 50 mA
75
mV
P-P
375
475
μA
2.3
1
5
μA
MHz
V
V
0.60
1.40
0.2 V
IN
0.8 V
IN
0.3
μA
Note 1:
“Absolute Maximum Ratings” indicate 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 “Electrical
Characteristics”.
Note 2:
As long as T
A
≤
+85C, all electrical characteristics hold true and the junction temperature should remain below +125C.
Note 3:
The Human Body Model is a 100 pF capacitor discharged through a 1.5 k
resistor into each pin. The Machine Model is a 200 pF capacitor discharged
directly into each pin.
Note 4:
Typical numbers are at 25C and represent the most likely norm.
Note 5:
All limits guaranteed at room temperature (standard typeface) and at temperature extremes (bold typeface). All room temperature limits are 100% tested
or guaranteed through statistical analysis.All limits at temperature extremes are guaranteed by correlation using standard Statistical Quality Control methods (SQC).
All limits are used to calculate Average Outgoing Quality Level (AOQL).
Note 6:
The V
OUT
pin is forced to 200 mV above the typical V
OUT
. This is to insure that the internal switches are off.
Note 7:
The output capacitor C
OUT
is fully discharged before measurement.
L
www.national.com
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LM335A 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Precision Temperature Sensors
LM335AD 功能描述:板上安裝溫度傳感器 Precision 1 Deg Cel RoHS:否 制造商:Omron Electronics 輸出類型:Digital 配置: 準(zhǔn)確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數(shù)字輸出 - 總線接口:2-Wire, I2C, SMBus 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 最大工作溫度:+ 50 C 最小工作溫度:0 C 關(guān)閉: 安裝風(fēng)格: 封裝 / 箱體: 設(shè)備功能:Temperature and Humidity Sensor
LM335ADT 功能描述:板上安裝溫度傳感器 Precision 1 Deg Cel RoHS:否 制造商:Omron Electronics 輸出類型:Digital 配置: 準(zhǔn)確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數(shù)字輸出 - 總線接口:2-Wire, I2C, SMBus 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 最大工作溫度:+ 50 C 最小工作溫度:0 C 關(guān)閉: 安裝風(fēng)格: 封裝 / 箱體: 設(shè)備功能:Temperature and Humidity Sensor
LM335AH 功能描述:板上安裝溫度傳感器 RoHS:否 制造商:Omron Electronics 輸出類型:Digital 配置: 準(zhǔn)確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數(shù)字輸出 - 總線接口:2-Wire, I2C, SMBus 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 最大工作溫度:+ 50 C 最小工作溫度:0 C 關(guān)閉: 安裝風(fēng)格: 封裝 / 箱體: 設(shè)備功能:Temperature and Humidity Sensor
LM335AH/NOPB 功能描述:板上安裝溫度傳感器 RoHS:否 制造商:Omron Electronics 輸出類型:Digital 配置: 準(zhǔn)確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數(shù)字輸出 - 總線接口:2-Wire, I2C, SMBus 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 最大工作溫度:+ 50 C 最小工作溫度:0 C 關(guān)閉: 安裝風(fēng)格: 封裝 / 箱體: 設(shè)備功能:Temperature and Humidity Sensor
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