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參數(shù)資料
| 型號： | LM2788MM-1.5/NOPB |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | SWITCHED CAPACITOR REGULATOR, 500 kHz SWITCHING FREQ-MAX, PDSO8 |
| 封裝： | MSOP-8 |
| 文件頁數(shù)： | 6/12頁 |
| 文件大?。?/td> | 372K |
| 代理商： | LM2788MM-1.5/NOPB |
Absolute Maximum Ratings (Notes 1,
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
0.3V to 5.6V
Junction Temperature (T
J-MAX-ABS)
150C
Continuous Power Dissipation
Internally Limited
V
OUT Short-Circuit to GND Duration
Unlimited
Storage Temperature Range
65C to 150C
Lead Temperature
(Soldering, 5 Sec.)
260C
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
-40C to 125C
Ambient Temperature Range
-40C to 85C
Thermal Information
Junction-to-Ambient Thermal
220C/W
Resistance, MSOP-8 Package
(
θ
JA) (Note 7)
Electrical Characteristics
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
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)
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)
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
A
I
SD
Shutdown Supply Current
V(EN) = 0V
0.1
2
A
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
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
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
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.
LM2788
www.national.com
3
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