Rainbow Electronics MAX15040 - Manual (Page 3)

MAX15040
High-Efficiency, 4A, Step-Down Regulator with
Integrated Switches in 2mm x 2mm Package
_______________________________________________________________________________________ 3
ELECTRICAL CHARACTERISTICS (continued)
(V IN = V DD = 3.3V, T A = -40°C to +85°C. Typical values are at T A = +25°C, circuit of Figure 1, unless otherwise noted.) (Note 3)
PARAMETER CONDITIONS MIN TYP MAX UNITS
ERROR AMPLIFIER
FB Regulation Accuracy Using internal reference 0.594 0.600 0.606 V
Open-Loop Voltage Gain 1k Ω from COMP to GND (Note 4) 115 dB
Error-Amplifier Unity-Gain
Bandwidth
Series 5k Ω, 100nF from COMP to GND (Note 4) 26 MHz
V DD = 2.4V to 2.6V 0 V DD - 1.80 Error-Amplifier Common-Mode
Input Range
V DD = 2.6V to 3.6V 0 V DD - 1.85
V
V
COMP
= 1.2V, sinking 500 Error-Amplifier Minimum Output
Current
V COMP = 1.0V, sourcing 1000
µA
FB Input Bias Current V FB = 0.7V, using internal reference, T A = +25°C -200 -100 nA
REFIN/SS
REFIN/SS Charging Current V REFIN/SS = 0.45V 7 8 9 µA
REFIN/SS Discharge Resistance 520 Ω
V DD = 2.4V to 2.6V 0 V DD - 1.80
REFIN/SS Common-Mode Range
V DD = 2.6V to 3.6V 0 V DD - 1.85
V
T
A
= +25°C 30 µV
REFIN/SS Offset Voltage Error amplifier offset
-4.5 +4.5 mV
LX (ALL BUMPS COMBINED)
V IN = V BST - V LX = 2.5V 21
LX On-Resistance, High Side I LX = -0.4A
V IN = V BST - V LX = 3.3V 19
m Ω
V IN = 2.5V 16
LX On-Resistance, Low Side I LX = 0.4A
V IN = 3.3V 15
m Ω
High-side sourcing 5.5 7
LX Peak Current-Limit Threshold V IN = 2.5V
Low-side sinking 5.5 7
A
V LX = 0V -2
T
A
= +25°C
V LX = 3.6V +2 LX Leakage Current V IN = 3.6V, V EN = 0V
T A = +85°C 0.2
µA
LX Switching Frequency V IN = 2.5V to 3.3V, T A = +25°C 0.92 1 1.03 MHz
LX Maximum Duty Cycle V IN = 2.5V to 3.3V, T A = +25°C 92 96 %
LX Minimum On-Time 80 ns
RMS LX Output Current 4 A
ENABLE
EN Input Logic-Low Threshold 0.7 V
EN Input Logic-High Threshold 1.7 V
T
A
= +25°C 1
EN Input Current
V EN = 0 or 3.6V,
V IN = V DD = 3.6V T A = +85°C 0.3
µA