MAX15021 Maxim Integrated Products, MAX15021 Datasheet - Page 3

• Manufacturer Part Number: MAX15021
• Description: Step-Down DC-DC Regulator
• Manufacturer: Maxim Integrated Products

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ELECTRICAL CHARACTERISTICS (continued)
(V
Typical values are at T
Note 3: Specifications are 100% production tested at T
Note 4: When operating with A
PWM CURRENT LIMIT AND HICCUP MODE
Regulator 1 Peak Current Limit
Regulator 1 Valley Current Limit
Regulator 2 Peak Current Limit
Regulator 2 Valley Current Limit
Number of Cumulative Current-Limit
Events to Hiccup
Number of Consecutive Noncurrent
Limit Cycles to Clear N
Hiccup Timeout
ENABLE/SEL
EN_ Threshold
EN_ Hysteresis
EN_ Input Current
SEL High Threshold
SEL Low Threshold
SEL Input Bias Current
OSCILLATOR
Switching Frequency Range
Oscillator Accuracy
Phase Shift Between Regulators
RT Current
RT Voltage Range
Minimum Controllable On-Time
Minimum Controllable Off-Time
PWM Ramp Amplitude
PWM Ramp Valley
THERMAL SHUTDOWN
Thermal Shutdown Temperature
Thermal Shutdown Hysteresis
AVIN
Regulator with Tracking/Sequencing Capability
= V
temperature are guaranteed by design.
PVIN_
PARAMETER
= V
DVDD_
_______________________________________________________________________________________
A
CL
= +25°C.) (Note 3)
= 3.3V, V
Dual, 4A/2A, 4MHz, Step-Down DC-DC
VIN
= 2.5V, the maximum switching frequency should be derated to 3MHz.
PGND_
SYMBOL
N
= V
N
N
V
f
SW
CLR
RT
CL
HT
SGND_
V
V
V
V
V
V
V
V
V
Present only during startup
f
(Note 4)
f
f
0 < V
Temperature rising
SW
SW
SW
AVIN
AVIN
AVIN
AVIN
AVIN
AVIN
AVIN
AVIN
EN_
A
= 0V, R
= +25°C and T
= 3MHz x [V
≤ 1500kHz
> 1500kHz
RT
rising
= 3.3V
= 2.5V
= 3.3V
= 2.5V
= 3.3V
= 2.5V
= 3.3V
= 2.5V
< 1.067V
T
= 25kΩ, and T
CONDITIONS
RT
(V)/1.067(V)]
A
= +125°C. Maximum and minimum specifications over
A
= T
J
= -40°C to +125°C, unless otherwise noted.
0.85 x V
1.207
31.30
2.25
1.70
-100
0.13
MIN
-2.5
500
4.5
3.4
4.0
3.0
2.0
1.5
-10
-6
AVIN
V
1.225
8192
AVIN
+160
TYP
3.65
2.45
1.85
1.85
0.12
180
4.9
4.9
3.7
2.5
0.3
32
60
60
15
4
3
0.2 x V
/4
1.243
32.58
1.067
MAX
+100
4000
3.95
5.65
4.25
2.65
1.98
2.83
2.13
+2.5
+10
5.3
+6
AVIN
Degrees
UNITS
Cycles
Cycles
Cycles
Clock
Clock
Clock
kHz
µA
µA
µA
ns
ns
°C
°C
%
A
A
A
A
V
V
V
V
V
V
V
3