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參數(shù)資料
| 型號： | MAX726ECK |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | Octal Buffers And Line Drivers With 3-State Outputs 20-CFP -55 to 125 |
| 中文描述： | 3.2 A SWITCHING REGULATOR, 120 kHz SWITCHING FREQ-MAX, PZFM5 |
| 封裝： | TO-220, 5 PIN |
| 文件頁數(shù)： | 2/4頁 |
| 文件大小： | 39K |
| 代理商： | MAX726ECK |
M
5V /3.3V /3V 5A S tep-Down, PWM,
S witc h-Mode DC-DC Regulators
2
_______________________________________________________________________________________
Input Voltage..................................................45V
Switch Voltage with Respect to Input Voltage................50V
Switch Voltage with Respect to GND Pin (V
negative)
(Note 1) .....................................................35V
SENSE Pin Voltage ...................................-0.3V, +10V
Operating Temperature Ranges
MAX78_CCK .....................................0°C to +70°C
MAX78_ECK....................................-40°C to +85°C
J unction Temperature Ranges
MAX78_CCK ...................................0°C to +125°C
MAX78_ECK ................................-40°C to +125°C
Storage Temperature Range ...................-65°C to +160°C
Lead Temperature (soldering, 10sec)....................+300°C
ELECTRICAL CHARACTERISTICS
(V
IN
= 25V, T
j
= T
MIN
to T
MAX
, unless otherwise noted.)
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.
ABSOLUTE MAXIMUM RATINGS
PARAMETER
CONDITIONS
Start-Up Mode (Note 4)
3.5
6.5
90
5.0
8.5
MIN
TYP
MAX
UNITS
Switching Frequency Line Regulation
Error-Amplifier Voltage Gain
8V
≤
V
IN
≤
40V
1V
≤
V
C
≤
4V
Switch-Current Limit (Note 5)
Maximum Duty Cycle
5.5
85
A
%
T
j
< 0°C
T
j
≥
0°C
90
85
100
110
120
T
j
≥
0°C
V
OUT
= V
SENSE
= 0V (Note 5)
20
0.03
2000
Switching Frequency
kHz
0.10
%/V
V/V
Error-Amplifier Transconductance
3000
5000
9000
μmho
Error-Amplifier Source Current
V
SENSE
= V
OUT
- 10%
V
SENSE
= V
OUT
+ 10%
100
140
225
T
j
= +25°C
T
j
≤
+125°C
T
j
= +25°C
μA
Error-Amplifier Sink Current
I
SW
= 1A
0.6
1.0
1.7
1.85
mA
T
j
= +25°C
T
j
= +25°C
T
j
= +25°C
Switch-On Voltage (Note 1)
2.10
V
T
j
= +25°C
Supply Current (Note 3)
mA
V
IN
≤
40V, V
SENSE
= 5.5V
Normal Mode
8.5
7.3
3.5
11
8.0
4.8
Minimum Supply Voltage
V
T
j
= +25°C
T
j
= +25°C
V
IN
=
≤
25V, V
SW
= 0V
V
IN
= 40V, V
SW
= 0V
5
300
Switch-Off Leakage
10
500
μA
T
j
< 0°C
I
SW
= 5A
2.30
2.50
Input Supply Voltage Range
8.0
40.0
V
T
j
≥
0°C
T
j
< 0°C
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相關(guān)代理商/技術(shù)參數(shù) |
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