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参数资料
| 型号： | LM2765M6/NOPB |
| 厂商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分类： | 稳压器 |
| 英文描述： | SWITCHED CAPACITOR CONVERTER, 100 kHz SWITCHING FREQ-MAX, PDSO6 |
| 封装： | LEAD FREE, SOT-23, 6 PIN |
| 文件页数： | 3/9页 |
| 文件大小： | 208K |
| 代理商： | LM2765M6/NOPB |
Absolute Maximum Ratings (Note 2)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Supply Voltage (V+ to GND, or V+ to V
OUT)
5.8V
SD
(GND 0.3V) to (V+ +
0.3V)
V
OUT Continuous Output Current
40 mA
Output Short-Circuit Duration to GND (Note 3)
1 sec.
Continuous Power
Dissipation (T
A = 25C)(Note 4)
600 mW
T
JMax(Note 4)
150C
Operating Ratings
θ
JA (Note 4)
210C/W
Junction Temperature Range
40 to 100C
Ambient Temperature Range
40 to 85C
Storage Temperature Range
65C to 150C
Lead Temp. (Soldering, 10
seconds)
240C
ESD Rating (Note 5)
Human body model
Machine model
2kV
200V
Electrical Characteristics
Limits in standard typeface are for T
J = 25C, and limits in boldface type apply over the full operating temperature range. Un-
less otherwise specified: V+ = 5V, C
1 =C2 = 3.3 F. (Note 6)
Symbol
Parameter
Condition
Min
Typ
Max
Units
V+
Supply Voltage
1.8
5.5
V
I
Q
Supply Current
No Load
130
450
A
I
SD
Shutdown Supply Current
0.1
0.5
A
T
A = 85C
0.2
V
SD
Shutdown Pin Input Voltage
Shutdown Mode
2.0
V
Normal Operation
0.6
I
L
Output Current
2.5V
≤ V
IN ≤ 5.5V
20
mA
1.8V
≤ V
IN < 2.5V
10
R
OUT
Output Resistance (Note 7)
I
L =20 mA
20
40
f
OSC
Oscillator Frequency
(Note 8)
40
100
200
kHz
f
SW
Switching Frequency
(Note 8)
20
50
100
kHz
P
EFF
Power Efficiency
I
L = 20 mA to GND
92
%
V
OEFF
Voltage Conversion Efficiency
No Load
99.96
%
Note 2: Absolute maximum ratings indicate limits beyond which damage to the device may occur. Electrical specifications do not apply when operating the device
beyond its rated operating conditions.
Note 3: VOUT may be shorted to GND for one second without damage. However, shorting VOUT to V+ may damage the device and should be avoided. Also, for tem-
peratures above 85C, OUT must not be shorted to GND or V+, or device may be damaged.
Note 4: The maximum allowable power dissipation is calculated by using PDMax =(TJMax TA)/θJA, where TJMax is the maximum junction temperature, TA is the
ambient temperature, and
θJA is the junction-to-ambient thermal resistance of the specified package.
Note 5: The human body model is a 100pF capacitor discharged through a 1.5k
resistor into each pin. The machine model is a 200pF capacitor discharged directly
into each pin.
Note 6: In the test circuit, capacitors C1 and C2 are 3.3 F, 0.3 maximum ESR capacitors. Capacitors with higher ESR will increase output resistance, reduce output
voltage and efficiency.
Note 7: Specified output resistance includes internal switch resistance and capacitor ESR. See the details in the application information for positive voltage doubler.
Note 8: The output switches operate at one half of the oscillator frequency, fOSC =2fSW.
LM2765
www.national.com
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