MAX763ACSA Datasheet Download

Part No.:
MAX763ACSA
Download:
Download Datasheet
Description:
[3.3V, Step-Down, Current-Mode PWM DC-DC Converters]
File Size:
136 K
Page:
12 Pages
Logo:
Manufacturer:
MAXIM [ MAXIM INTEGRATED PRODUCTS ]
PCB Prototype
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3.3V, Step-Down,
Current-Mode PWM DC-DC Converters
MAX748A/MAX763A
____________________________Typical Operating Characteristics (continued)
(Circuit of Figure 3, T
A
= +25°C, V
OUT
= 3.3V, unless otherwise noted.)
MAX763A
QUIESCENT SUPPLY CURRENT
vs. SUPPLY VOLTAGE
4.5
QUIESCENT SUPPLY CURRENT (mA)
QUIESCENT SUPPLY CURRENT (mA)
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
0
1 2
3 4 5 6 7 8
SUPPLY VOLTAGE (V)
9 10 11 12
0
0
2
4
6
8
10 12
SUPPLY VOLTAGE (V)
14
16
0
0 50 100 150 200 250 300 350 400 450 500 550
OUTPUT CURRENT (mA)
TA = -55°C
TA = +25°C
IOUT = 0mA
TA = +125°C
5.0
IOUT = OmA
4.0
TA = -55°C
3.0
TA = +125°C
TA = +25°C
1.0
PEAK INDUCTOR CURRENT (mA)
800
VIN = 11V
MAX748A
QUIESCENT SUPPLY CURRENT
vs. SUPPLY VOLTAGE
1000
PEAK INDUCTOR CURRENT
vs. OUTPUT CURRENT
600
400
VIN = 6V
VIN = 8V
2.0
200
OSCILLATOR FREQUENCY
vs. SUPPLY VOLTAGE
275
250
OSCILLATOR FREQUENCY (kHz)
SHUTDOWN CURRENT (µA)
225
MAX748A
200
175
150
125
100
0
2
4
6
8
10 12
SUPPLY VOLTAGE (V)
14
16
MAX763A
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
SHUTDOWN CURRENT
vs. TEMPERATURE
4.0
NOTES 3, 4
3.5
OUTPUT VOLTAGE (V)
3.0
2.5
2.0
1.5
1.0
IOUT = 0mA
V+ = 5V
0.5
0
-60 -40 -20
0
20 40 60 80 100 120 140
2.0
2.5
OUTPUT VOLTAGE
vs. SUPPLY VOLTAGE
ILOAD = 50mA
ILOAD = 200mA
ILOAD = 500mA
ILOAD = 300mA
3.0
3.5
4.0
4.5
5.0
TEMPERATURE (°C)
SUPPLY VOLTAGE (V)
OUTPUT VOLTAGE
vs. OUTPUT CURRENT
4.0
3.5
3.0
OUTPUT VOLTAGE (V)
2.5
2.0
1.5
1.0
0.5
0
0
50 100 150 200 250 300 350 400 450 500
OUTPUT CURRENT (mA)
VIN = 3.5V
VIN = 3.0V
VIN = 4.0V
OSCILATOR FREQUENCY (kHz)
250
200
150
100
50
0
300
OSCILLATOR FREQUENCY
vs. TEMPERATURE
IOUT = 100mA
V+ = 5V
MAX748A
MAX763A
-60 -40 -20
0
20 40 60 80 100 120 140
TEMPERATURE (°C)
4
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