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参数资料
| 型号： | LM3354MMX-4.1/NOPB |
| 厂商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分类： | 稳压器 |
| 英文描述： | SWITCHED CAPACITOR REGULATOR, 1400 kHz SWITCHING FREQ-MAX, PDSO10 |
| 封装： | 1.10 MM HEIGHT, MSOP-10 |
| 文件页数： | 7/12页 |
| 文件大小： | 433K |
| 代理商： | LM3354MMX-4.1/NOPB |
Electrical Characteristics (Continued)
Limits in standard typeface are for T
A = 25C, and limits in boldface type apply over the full operating temperature range. Un-
less otherwise specified: C
1 =C2 = 0.33 F; CIN = 10 F; COUT = 10 F; CFIL = 1 F; VIN = 3.5V.
Parameter
Conditions
Min
Typ
Max
Units
LM3354-3.3
Output Voltage (V
OUT
)
2.9V < V
IN < 5.5V;
1mA < I
LOAD < 70
mA
3.201/3.168
3.3
3.399/3.432
V
2.5V < V
IN < 5.5V;
1mA < I
LOAD < 70
mA
3.201/3.168
3.3
3.399/3.432
Efficiency
I
LOAD =15mA
90
%
I
LOAD=70mA
70
Output Voltage
Ripple
(Peak-to-Peak)
I
LOAD =50mA
C
OUT =10F
ceramic
75
mV
P-P
LM3354-1.8
Output Voltage (V
OUT
)
2.9V < V
IN < 5.5V;
1mA < I
LOAD < 90
mA
1.728/1.710
1.8
1.872/1.89
V
2.5V < V
IN < 5.5V;
1mA < I
LOAD < 80
mA
1.728/1.710
1.8
1.872/1.89
Efficiency
I
LOAD =15mA
75
%
I
LOAD=70mA
70
Output Voltage
Ripple
(Peak-to-Peak)
I
LOAD =50mA
C
OUT =10F
ceramic
25
mV
P-P
LM3354-ALL OUTPUT VOLTAGE VERSIONS
Operating Quiescent
Current
Measured at Pin
V
IN;
I
LOAD = 0A (Note 6)
375
475
A
Shutdown Quiescent
Current
SD Pin at 0V (Note
2.3
5
A
Switching
Frequency
0.6
1
1.4
MHz
SD Input Threshold
Low
2.5V < V
IN < 5.5V
0.2 V
IN
V
SD Input Threshold
High
2.5V < V
IN < 5.5V
0.8 V
IN
V
SD Input Current
Measured at SD
Pin;
SD Pin = V
IN = 5.5V
0.3
A
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 TA ≤ +85C, all electrical characteristics hold true and the junction temperature should remain below +120C except for the 5V output option.
The 5V option requires that TA ≤ +60C.
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 VOUT pin is forced to 200 mV above the typical VOUT. This is to insure that the internal switches are off.
Note 7: The output capacitor COUT is fully discharged before measurement.
LM3354
www.national.com
4
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