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LM2788MMX-1.8 Arkusz danych(PDF) 3 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Numer części LM2788MMX-1.8
Szczegółowy opis  120mA High Efficiency Step-Down Switched Capacitor Voltage Converter
Download  12 Pages
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Producent  NSC [National Semiconductor (TI)]
Strona internetowa  http://www.national.com
Logo NSC - National Semiconductor (TI)

LM2788MMX-1.8 Arkusz danych(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, EN pins: Voltage to Ground
(Note 3)
−0.3V to 5.6V
Junction Temperature (T
J-MAX-ABS)
150˚C
Continuous Power Dissipation
(Note 4)
Internally Limited
V
OUT Short-Circuit to GND Duration
(Note 4)
Unlimited
Storage Temperature Range
−65˚C to 150˚C
Lead Temperature
(Soldering, 5 Sec.)
260˚C
ESD Rating (Note 5)
Human-body model:
Machine model
2kV
200V
Operating Ratings
(Notes 1, 2)
Input Voltage Range
2.6V to 5.5V
Recommended Output Current
Range
0mA to 120mA
Junction Temperature Range
-40˚C to 125˚C
Ambient Temperature Range
(Note 6)
-40˚C to 85˚C
Thermal Information
Junction-to-Ambient Thermal
220˚C/W
Resistance, MSOP-8 Package
(
θ
JA) (Note 7)
Electrical Characteristics
(Notes 2, 8) Limits in standard typeface and typical values apply for T
J =
25oC. Limits in boldface type apply over the operating junction temperature range. Unless otherwise specified: 2.6
≤ V
IN
5.5V, V(EN) = V
IN,C1 =C2 = 1µF, CIN =COUT = 10µF. (Note 9)
Symbol
Parameter
Conditions
Min
Typ
Max
Units
LM2788-1.8, LM2788-2.0
V
OUT
Output Voltage Tolerance
2.8V
≤ V
IN
≤ 4.2V
0mA
≤ I
OUT
≤ 120mA
-5
+5
%of
V
OUT (nom)
(Note 10)
4.2V
≤ V
IN
≤ 5.5V
0mA
≤ I
OUT
≤ 120 mA
-6
+6
LM2788-1.5
V
OUT
Output Voltage Tolerance
2.8V
≤ V
IN
≤ 4.2V
0mA
≤ I
OUT
≤ 120 mA
-6
+6
%of
V
OUT (nom)
(Note 10)
4.2V
≤ V
IN
≤ 5.5V
0mA
≤ I
OUT
≤ 120mA
-6
+6
All Output Voltage Options
I
Q
Operating Supply Current
I
OUT = 0mA
32
50
µA
I
SD
Shutdown Supply Current
V(EN) = 0V
0.1
2
µA
V
R
Output Voltage Ripple
LM2788-1.8: V
IN = 3.6V, IOUT = 120mA
20
mV
p-p
E
PEAK
Peak Efficiency
LM2788-1.8: V
IN = 3.0V, IOUT = 60mA
90
%
E
AVG
Average Efficiency over
Li-Ion Input Voltage Range
(Note 11)
LM2788-1.5: 3.0
≤ V
IN
≤ 4.2V, I
OUT = 60mA
76
%
LM2788-1.8: 3.0
≤ V
IN
≤ 4.2V, I
OUT = 60mA
82
LM2788-2.0: 3.0
≤ V
IN
≤ 4.2V, I
OUT = 60mA
75
t
ON
Turn-On Time
V
IN = 3.6V, IOUT = 120mA (Note 12)
0.4
ms
f
SW
Switching Frequency
500
kHz
I
SC
Short-Circuit Current
V
IN = 3.6, VOUT =0V
25
mA
Enable Pin (EN) Characteristics
V
IH
EN pin Logic-High Input
0.9
V
IN
V
V
IL
EN pin Logic-Low Input
0
0.4
V
I
EN
EN pin input current
V
EN =0V
0
nA
V
EN = 5.5V
30
Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the component may occur. Operating Ratings are conditions under which operation of
the device is guaranteed. Operating Ratings do not imply guaranteed performance limits. For guaranteed performance limits and associated test conditions, see the
Electrical Characteristics tables.
Note 2: All voltages are with respect to the potential at the GND pin.
Note 3: Voltage on the EN pin must not be brought above VIN + 0.3V.
www.national.com
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