Electrical characteristics (continued) – Rainbow Electronics MAX15038 User Manual
Page 3
MAX15038
4A, 2MHz Step-Down Regulator
with Integrated Switches
_______________________________________________________________________________________
3
ELECTRICAL CHARACTERISTICS (continued)
(V
IN
= V
EN
= 5V, C
VDD
= 2.2µF, T
A
= T
J
= -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
COMP Clamp Voltage, High
V
IN
= 2.9V to 5V, V
FB
= 0.5V, V
REFIN
= 0.6V
2
V
COMP Clamp Voltage, Low
V
IN
= 2.9V to 5V, V
FB
= 0.7V, V
REFIN
= 0.6V
0.7
V
COMP Slew Rate
V
FB
step from 0.5V to 0.7V in 10ns
1.6
V/µs
COMP Shutdown Resistance
From COMP to GND, V
IN
= 3.3V, V
COMP
= 100mV,
V
EN
= V
SS
= 0
6
Ω
Internally Preset Output Voltage
Accuracy
V
REFIN
= V
SS
, MODE = GND
-1
+1
%
FB Set Point Value
CTL1 = CTL2 = GND, MODE = GND
0.594
0.6
0.606
V
FB to OUT Resistor
All VID settings except CTL1 = CTL2 = GND
5.5
8
10.5
k
Ω
Open-Loop Voltage Gain
115
dB
Error-Amplifier Unity-Gain
Bandwidth
28
MHz
Error-Amplifier Common-Mode
Input Range
V
DD
= 2.9V to 3.5V
0
V
DD
- 2
V
V
FB
= 0.7V, sinking
1
Error-Amplifier Maximum Output
Current
V
COMP
= 1V,
V
REFIN
= 0.6V
V
FB
= 0.5V, sourcing
-1
mA
FB Input Bias Current
CTL1 = CTL2 = GND
-125
nA
CTL_
V
CTL_
= 0
-7.2
CTL_ Input Bias Current
V
CTL_
= V
DD
+7.2
µA
Low, falling
0.8
Float
V
DD
/2
CTL_ Input Threshold
High, rising
V
DD
-
0.8
V
Hysteresis
All VID transitions
50
mV
REFIN
REFIN Input Bias Current
V
REFIN
= 0.6V
-185
nA
REFIN Offset Voltage
V
REFIN
= 0.9V, FB shorted to COMP
-4.5
+4.5
mV
LX (All Pins Combined)
V
IN
= V
BST
- V
LX
= 3.3V
42
LX On-Resistance, High-Side
I
LX
= -2A
V
IN
= V
BST
- V
LX
= 5V
31
54
m
Ω
V
IN
= 3.3V
30
LX On-Resistance, Low-Side
I
LX
= 2A
V
IN
= 5V
24
42
m
Ω
High-side sourcing
5.7
7
Low-side sinking
7
LX Current-Limit Threshold
Zero-crossing current threshold, MODE = V
DD
0.2
A
V
LX
= 0
-0.01
LX Leakage Current
V
IN
= 5V, V
EN
= 0
V
LX
= 5V
+0.01
µA