MAX15041 Maxim Integrated Products, MAX15041 Datasheet - Page 3

• Manufacturer Part Number: MAX15041
• Description: Step-Down DC-DC Regulator
• Manufacturer: Maxim Integrated Products

ELECTRICAL CHARACTERISTICS (continued)
(V
Note 3: Specifications are 100% production tested at T
Step-Down DC-DC Regulator with Internal Switches
SS Current
SS Discharge Resistance
SS Prebiased Mode Stop Voltage
Current Sense to COMP
Transconductance
COMP Clamp Low
PWM Compensation Ramp Valley
PWM CLOCK
Switching Frequency
Maximum Duty Cycle
Minimum Controllable On-Time
INTERNAL LDO OUTPUT (V
V
V
LDO Dropout Voltage
V
Threshold
V
Hysteresis
POWER SWITCH
LX On-Resistance
High-Side Switch Source
Current-Limit Threshold
Low-Side Switch Sink
Current-Limit Threshold
LX Leakage Current
BST Leakage Current
THERMAL SHUTDOWN
Thermal-Shutdown Threshold
Thermal-Shutdown Hysteresis
HICCUP PROTECTION
Blanking Time
IN
DD
DD
DD
DD
= 12V, C
Output Voltage
Short-Circuit Current
Undervoltage Lockout
Undervoltage Lockout
design and characterization.
PARAMETER
VDD
Low-Cost, 3A, 4.5V to 28V Input, 350kHz, PWM
= 1µF, C
_______________________________________________________________________________________
IN
= 22µF, T
DD
)
V
A
V
SYMBOL
UVLO_HYST
= T
UVLO_TH
G
V
R
f
I
MOD
SW
SS
D
DD
J
SS
= -40°C to +85°C, typical values are at T
V
I
V
I
V
I
V
High-side switch, I
Low-side switch, I
V
V
V
Rising
SS
VDD
VDD
SS
FB
IN
DD
BST
BST
BST
A
= +25°C. Limits over the operating temperature range are guaranteed by
= 10mA, sinking, V
= 6.5V
= 0.45V, sourcing
= 0.7V
rising
= 1mA to 25mA, V
= 25mA, V
= 33V, V
= 5V, V
= 33V, V
CONDITIONS
IN
IN
IN
= 28V, V
DD
= V
= V
LX
LX
drops by -2%
LX
LX
= 1A
= 1A
EN
= 28V
= 28V
IN
LX
= 1.6V
= 6.5V
= 0V
A
= +25°C, unless otherwise noted.) (Note 3)
MIN
4.75
315
4.5
30
5
Start Time
16 x Soft-
+155
TYP
0.65
0.68
830
350
150
150
170
105
5.1
90
80
50
10
10
10
20
-3
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5
6
9
4
6
MAX
4.25
385
600
305
175
5.5
5.5
7.2
UNITS
kHz
mΩ
mV
mA
mV
mV
µA
nA
nA
ns
°C
°C
%
Ω
V
S
V
V
V
A
A
3