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參數(shù)資料
| 型號： | MAX777LMJA |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | Low-Voltage Input, 3V/3.3V/5V/ Adjustable Output, Step-Up DC-DC Converters |
| 中文描述： | 1 A SWITCHING REGULATOR, 150 kHz SWITCHING FREQ-MAX, CDIP8 |
| 封裝： | CERDIP-8 |
| 文件頁數(shù)： | 2/12頁 |
| 文件大?。?/td> | 117K |
| 代理商： | MAX777LMJA |
M
Low-Voltage Input, 3V /3.3V /5V /
Adjustable Output, S tep-Up DC-DC Converters
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
Supply Voltage (IN to PGND).......................................0V to 4.5V
Output Short-Circuit Duration to PGND, AGND (Note 1)....30sec
Voltage Applied to:
LX (switch off) .......................................................-0.3V to 4.5V
(switch on)....................................30sec short to IN or OUT
OUT,
SHDN
...........................................................-0.3V to +7V
FB ...........................................................-0.3V to (OUT + 0.3V)
AGND to PGND........................................................-0.3V, +0.3V
Reverse Battery Current....................................................900mA
ELECTRICAL CHARACTERISTICS
(V
IN
= +2.5V, I
LOAD
= 0mA, L = 22μH, C
OUT
= 100μF,
SHDN
and ILIM connected to IN, AGND connected to PGND, T
A
= T
MIN
to T
MAX
,
typical values are at T
A
= +25°C, unless otherwise noted.)
PARAMETER
Minimum Start-Up Voltage
(Notes 2, 3)
I
LOAD
≤
30mA, 1.1V
≤
V
IN
≤
4.5V or
I
LOAD
≤
140mA, 1.8V
≤
V
IN
≤
4.5V
I
LOAD
≤
30mA, 1.2V
≤
V
IN
≤
4.5V or
I
LOAD
≤
130mA, 1.8V
≤
V
IN
≤
4.5V
I
LOAD
≤
25mA, 1.25V
≤
V
IN
≤
4.5V or
I
LOAD
≤
120mA, 1.8V
≤
V
IN
≤
4.5V
I
LOAD
≤
50mA, 1.1V
≤
V
IN
≤
3.3V or
I
LOAD
≤
210mA, 1.8V
≤
V
IN
≤
3.3V
I
LOAD
≤
50mA, 1.2V
≤
V
IN
≤
3.3V or
I
LOAD
≤
200mA, 1.8V
≤
V
IN
≤
3.3V
I
LOAD
≤
50mA, 1.25V
≤
V
IN
≤
3.3V or
I
LOAD
≤
180mA, 1.8V
≤
V
IN
≤
3.3V
I
LOAD
≤
50mA, 1.1V
≤
V
IN
≤
3V or
I
LOAD
≤
210mA, 1.8V
≤
V
IN
≤
3V
I
LOAD
≤
50mA, 1.2V
≤
V
IN
≤
3V or
I
LOAD
≤
200mA, 1.8V
≤
V
IN
≤
3V
I
LOAD
≤
40mA, 1.25V
≤
V
IN
≤
3V or
I
LOAD
≤
180mA, 1.8V
≤
V
IN
≤
3V
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
Continuous Power Dissipation (T
A
= +70°C)
Plastic DIP (derate 9.09mW/°C above +70°C) .............727mW
SO (derate 5.88mW/°C above +70°C)..........................471mW
CERDIP (derate 8.00mW/°C above +70°C)..................640mW
Operating Temperature Ranges:
MAX77_LC_A.......................................................0°C to +70°C
MAX77_LE_A ....................................................-40°C to +85°C
MAX77_LMJ A .................................................-55°C to +125°C
Storage Temperature Range.............................-65°C to +150°C
Lead Temperature (soldering, 10sec) .............................+300°C
Note 1:
The output may be shorted to ground if the package power dissipation is not exceeded.
Output Voltage
MAX777L/MAX779L
(set to 5V)
(Note 6)
MIN
TYP
MAX
1
(Note 4)
I
LOAD
= 100mA
I
LOAD
= 0mA (switch off)
UNITS
V
V
SHDN
Input Current
MAX77_LM
MAX77_LC, MAX77_LE
12
40
Output Voltage Range
(MAX779L)
Efficiency
No-Load Supply Current
2.5
6.0
μA
V
IN
<
SHDN
< 5V
V
20
15
35
100
4.80
5.00
5.20
nA
0V <
SHDN
< V
IN
V
MAX777LC/
MAX779LC
MAX777LE/
MAX779LE
MAX777LM/
MAX779LM
Maximum Operating Voltage
4.5
82
190
20
%
μA
310
30
Shutdown Supply Current
μA
CONDITIONS
SHDN
= 0V
I
LOAD
< 10mA, T
A
= +25°C (Note 2)
Output Voltage
MAX778L
(Note 6)
MAX778LE
3.17
3.30
3.43
V
MAX778LC
SEL = 0V
MAX778LM
MAX778LE
2.88
3.00
3.12
MAX778LC
SEL = OPEN
MAX778LM
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