MAX750A-MAX758A MAXIM [Maxim Integrated Products], MAX750A-MAX758A Datasheet - Page 3

• Manufacturer Part Number: MAX750A-MAX758A
• Description: Adjustable, Step-Down, Current-Mode PWM Regulators
• Manufacturer: MAXIM [Maxim Integrated Products]

ELECTRICAL CHARACTERISTICS (continued)
(Circuit of Figure 3, V+ = 9V for the MAX750A, V+ = 12V for the MAX758A, V
T
(Circuit of Figure 3, V
Note 1: Output voltage tolerance over temperature is ±4.5% plus the tolerances of R3 and R4 in Figure 3.
Note 2: The standby current typically settles to 25µA (over temperature) within 2 seconds; however, to decrease test time, the part
__________________________________________Typical Operating Characteristics
A
Undervoltage
Lockout
LX On Resistance
LX Leakage Current
Reference Voltage
Reference Drift
Oscillator Frequency
Compensation Pin
Impedance
= T
PARAMETER
MIN
is guaranteed at a 100µA maximum value.
to T
MAX
100
90
80
70
60
0
, unless otherwise noted.)
EFFICIENCY vs. OUTPUT CURRENT
_______________________________________________________________________________________
OUT
200
V+ rising
V+ falling
I
T
LX
= 5V, T
OUTPUT CURRENT (mA)
A
= +25°C
= 500mA
V+ = 11V
400
V+ = 9V
MAX750A
V+ = 7V
V+ = 5.5V
A
= +25°C, unless otherwise noted.)
600
CONDITIONS
(NOTES 3, 6)
800
Current-Mode PWM Regulators
1000
Adjustable, Step-Down,
1.15
MIN
130
OUT
MAX750A
7500
TYP
3.75
1.22
100
170
= 5V, R2 = 40.20kΩ, R3 = 13.0kΩ, I
3.5
0.5
1.0
50
90
80
70
60
0
EFFICIENCY vs. OUTPUT CURRENT
MAX
4.00
1.30
200
210
OUTPUT CURRENT (mA)
V+ = 16V
400
MAX758A
V+ = 12V
V+ = 8V
V+ = 6V
MIN
1.15
130
600
MAX758A
(NOTES 3, 6)
7500
TYP
3.75
1.22
160
3.5
0.5
1.0
800
50
1000
LOAD
MAX
4.00
1.30
190
= 0mA,
ppm/°C
UNITS
kHz
µA
Ω
Ω
V
V
3