參數資料
型號： MAX763AMJA
廠商： MAXIM INTEGRATED PRODUCTS INC
元件分類： 穩(wěn)壓器
英文描述： 3.3V, Step-Down, Current-Mode PWM DC-DC Converters
中文描述： 2 A SWITCHING REGULATOR, 212.5 kHz SWITCHING FREQ-MAX, CDIP8
封裝： CERAMIC, DIP-8
文件頁數： 3/12頁
文件大?。?/td> 135K
代理商： MAX763AMJA
M
3.3V, S tep-Down,
Current-Mode PWM DC-DC Converters
_________________________________________________________________________________________________
3
Note 1:
The standby current typically settles to 10μA (over temperature) within 2 seconds; however, to decrease test time, the part
is guaranteed at a 100μA maximum value.
MAXIMUM OUTPUT CURRENT
vs. SUPPLY VOLTAGE
M
0
200
400
600
800
1000
0
2
4
6
8
10
12
14
16
SUPPLY VOLTAGE (V)
MAX748A
MAX763A
NOTE 2
MAX763A
EFFICIENCY vs. OUTPUT CURRENT
E
60
65
70
75
80
85
90
95
100
0
100 200 300 400 500 600 700 800
OUTPUT CURRENT (mA)
VIN = 7.0V
VIN = 5.0V
VIN = 11.0V
NOTE 2
MAX748A
EFFICIENCY vs. OUTPUT CURRENT
E
OUTPUT CURRENT (mA)
60
65
70
75
80
85
90
95
100
0
100 200 300 400 500 600 700 800 900
VIN = 4.5V
VIN = 16V
VIN = 12V
VIN = 9V
VIN = 6V
NOTE 2
________________________________________________Typic al Operating Charac teristic s
(Circuit of Figure 3, T
A
= +25°C, V
OUT
= 3.3V, unless otherwise noted.)
PARAMETER
CONDITIONS
MAX748A
TYP
88
90
1.7
0.2
MAX763A
TYP
88
90
1.4
0.2
UNITS
MIN
MAX
MIN
MAX
Efficiency
V+ = 5V
I
LOAD
= 300mA
I
LOAD
= 100mA
%
Supply Current
Shutdown Current
Includes switch current
3.0
100.0
2.5
100.0
mA
μA
SHDN
= 0V (Note 1)
V
IH
V
IL
Shutdown Input
Threshold
2.0
2.0
V
0.25
0.25
Shutdown Input
Leakage Current
Short-Circuit Current
Undervoltage Lockout
LX On Resistance
LX Leakage Current
Reference Voltage
Reference Drift
Oscillator Frequency
Compensation Pin
Impedance
1.0
1.0
μA
1.2
2.7
1.0
10
1.22
50
180
1.2
2.7
1.0
10
1.22
50
200
A
V
nA
V
V+ falling
I
LX
= 500mA
V+ = 12V, LX = 0
T
A
= +25°C
T
A
= T
MIN
to T
MAX
3.0
3.0
1.15
1.30
1.15
1.30
ppm/°C
kHz
159
212.5
159
212.5
7500
7500
ELECTRICAL CHARACTERISTICS (continued)
(Circuit of Figure 3, V+ = 5V, I
LOAD
= 0mA, T
A
= T
MIN
to T
MAX
, unless otherwise noted.)
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