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LM2750 Scheda tecnica(PDF) 3 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor. Click here to check the latest version.
Il numero della parte LM2750
Spiegazioni elettronici  Low Noise, 5.0V Regulated Switched Capacitor Voltage Converter
PDF  15 Pages
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Produttore elettronici  NSC [National Semiconductor (TI)]
Homepage  http://www.national.com
Logo NSC - National Semiconductor (TI)

LM2750 Scheda tecnica(HTML) 3 Page - National Semiconductor (TI)

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Absolute Maximum Ratings (Notes 1, 2)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
V
IN Pin: Voltage to Ground
−0.3V to 6V
SD Pin: Voltage to GND
−0.3V to
(V
IN+0.3V)
Junction Temperature (T
J-MAX-ABS)
150˚C
Continuous Power Dissipation
Internally Limited
(Note 3)
Storage Temperature Range
−65˚C to 150˚C
Maximum Lead Temperature
260˚C
(Soldering, 5 sec.)
ESD Rating (Note 4)
Human-body model:
Machine model
2kV
100V
Operating Ratings
(Notes 1, 2)
LM2750-5.0 Input Voltage Range
2.7V to 5.6V
LM2750-ADJ Input Voltage Range
3.8V
≤ V
OUT
≤ 4.9V:
2.7V to (V
OUT+0.7V)
4.9V
≤ V
OUT
≤ 5.2V:
2.7V to 5.6V
LM2750-ADJ Output Voltage Range
3.8V to 5.2V
Recommended Output Current
2.9V
≤ V
IN
≤ 5.6V
0 to 120mA
2.7V
≤ V
IN
≤ 2.9V
0 to 40mA
Junction Temperature (T
J) Range
-40˚C to 125˚C
Ambient Temperature (T
A) Range
-40˚C to 85˚C
(Note 5)
Thermal Information
Junction-to-Ambient Thermal
Resistance, LLP-10
55˚C/W
Package (
θ
JA) (Note 6)
Electrical Characteristics
(Notes 2, 7)
Typical values and limits in standard typeface apply for T
J =25
oC. Limits in boldface type apply over the operating junction
temperature range. Unless otherwise specified: 2.9V
≤ V
IN
≤ 5.6V, V
OUT = 5.0V (LM2750-ADJ), V(SD) = VIN,CFLY = 1µF, CIN
= 2 x 1µF, C
OUT = 2 x 1µF (Note 8).
Symbol
Parameter
Conditions
Min
Typ
Max
Units
V
OUT
Output Voltage
(LM2750-5.0)
2.9V
≤ V
IN
≤ 5.6V,
I
OUT
≤ 120mA
4.80
(-4%)
5.0
5.20
(+4%)
V
(%)
2.7V
≤ V
IN
≤ 2.9V,
I
OUT
≤ 40mA
4.80
(-4%)
5.0
5.20
(+4%)
I
Q
Operating Supply Current
I
OUT = 0mA,
V
IH(MIN)
≤ V(SD) ≤V
IN
510
12
mA
I
SD
Shutdown Supply Current
V(SD) = 0V
2
µA
V
FB
Feedback Pin Voltage
(LM2750-ADJ)
V
IN = 3.1V
1.170
1.232
1.294
V
I
FB
Feedback Pin Input Current
(LM2750-ADJ)
V
FB = 1.4V
1
nA
V
R
Output Ripple
C
OUT = 10µF, IOUT = 100mA
4
mVp-p
C
OUT = 2.2µF, IOUT = 100mA
15
E
PEAK
Peak Efficiency
(LM2750-5.0)
V
IN = 2.7V, IOUT = 40mA
87
%
V
IN = 2.9V, IOUT = 120mA
85
E
AVG
Average Efficiency over Li-Ion
Input Range
(LM2750-5.0)
(Note 10)
V
IN Range: 2.9V - 4.2V,
I
OUT = 120mA
70
%
V
IN Range: 2.9V - 4.2V,
I
OUT = 40mA
67
f
SW
Switching Frequency
1.0
1.7
MHz
t
ON
V
OUT Turn-On Time
V
IN= 3.0V, IOUT = 100mA,
(Note 9)
0.5
ms
I
LIM
Current Limit
V
OUT shorted to GND
300
mA
Shutdown Pin (SD) Characteristics
V
IH
Logic-High SD Input
1.3
V
IN
V
V
IL
Logic-Low SD Input
0
0.4
V
I
IH
SD Input Current (Note 11)
1.3V
≤ V(SD) ≤ V
IN
15
50
µA
I
IL
SD Input Current
V(SD) = 0V
−1
1
µA
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