IC REG PWM STEP-DWN ADJ 8-SOIC

 

MAX750ACSA

Manufacturer Part NumberMAX750ACSA
DescriptionIC REG PWM STEP-DWN ADJ 8-SOIC
ManufacturerMaxim Integrated Products
TypeStep-Down (Buck), PWM - Current Mode
MAX750ACSA datasheets

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Specifications of MAX750ACSA

Internal Switch(s)YesSynchronous RectifierNo
Number Of Outputs1Voltage - Output1.25 ~ 11 V
Current - Output450mAFrequency - Switching170kHz
Voltage - Input4 ~ 11 VOperating Temperature0°C ~ 70°C
Mounting TypeSurface MountPackage / Case8-SOIC (3.9mm Width)
Voltage - Supply4 V ~ 11 VFrequency-max210kHz
Duty Cycle92%Pwm TypeCurrent Mode
BuckYesBoostNo
FlybackNoInvertingNo
DoublerNoDividerNo
CukNoIsolatedNo
Lead Free Status / RoHS StatusContains lead / RoHS non-compliant  
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Adjustable, Step-Down,
Current-Mode PWM Regulators
_____________________________Typical Operating Characteristics (continued)
(Circuit of Figure 3, V
= 5V, T
= +25°C, unless otherwise noted.)
OUT
A
MAX758A
PEAK INDUCTOR CURRENT
vs. OUTPUT CURRENT
1000
L1 = 100µH
C4 = 300µF
800
600
V+ 8.0V TO 16.0V
400
V+ = 6.6V
200
0
0
100 200 300 400 500 600 700 800
OUTPUT CURRENT (mA)
MAX758A
NO-LOAD SUPPLY CURRENT vs. SUPPLY VOLTAGE
3.0
(NOTES 3, 5)
2.5
2.0
UNDERVOLTAGE
LOCKOUT V+ FALLING
(OPERATION ENDS)
1.5
1.0
UNDERVOLTAGE
0.5
LOCKOUT V+ RISING
(OPERATION BEGINS)
0
0
2
4
6
8
10
12
14
16
SUPPLY VOLTAGE (V)
MAX750A
OSCILLATOR FREQUENCY vs. TEMPERATURE
240
(NOTE 4)
V+ = 11.0V
220
200
V+ = 5.5V
180
160
V+ = 7.0V
V+ = 9.0V
140
0
-60
-40 -20 0
20 40
60
80
100
TEMPERATURE (°C)
4
_______________________________________________________________________________________
MAX758A
PEAK INDUCTOR CURRENT
vs. OUTPUT CURRENT
700
L1 = 18µH
C4 = 1000µF
600
500
400
300
V+ = 10.2V
200
V+ = 8.0V
V+ = 6.6V
100
V+ = 6.0V
0
0
50
100
150
200
250
300
OUTPUT CURRENT (mA)
NO-LOAD SUPPLY CURRENT
vs. TEMPERATURE
2.0
(NOTES 4, 5)
2.5
MAX750A, V+ = 9.0V
2.0
MAX758A, V+ = 12.0V
1.5
1.0
0.5
0
-60
-40
-20
0
20
40
60
80
100
120
140
TEMPERATURE (°C)
OSCILLATOR FREQUENCY vs. TEMPERATURE
200
190
180
170
160
150
140
130
120
120
140
-60
-40 -20
OSCILLATOR FREQUENCY
vs. SUPPLY VOLTAGE
220
(NOTE 3)
210
200
190
MAX750A
180
170
MAX758A
160
150
4
6
8
10
12
14
16
SUPPLY VOLTAGE (V)
SHUTDOWN SUPPLY CURRENT
vs. TEMPERATURE
20
18
(NOTES 4, 5)
16
14
MAX758A ONLY, V+ = 16V
12
MAX758A ONLY, V+ = 12V
V+ = 9V
10
V+ = 6V
8
6
4
2
0
-60
-40
-20
0
20
40
60
80
100
120
140
TEMPERATURE (°C)
MAX758A
(NOTE 4)
V+ = 6.0V
V+ = 16.0V
V+ = 12.0V
V+ = 9.0V
0
20 40
60
80
100
120
140
TEMPERATURE (°C)

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