MAX5037A Datasheet, PDF (2/31 Pages) Maxim Integrated Products – VRM 9.0/VRM 9.1, Dual-Phase, Parallelable, Average-Current-Mode Controller

VRM 9.0/VRM 9.1, Dual-Phase,
Parallelable, Average-Current-Mode Controller
ABSOLUTE MAXIMUM RATINGS
IN to SGND.............................................................-0.3V to +30V
BST_ to SGND…………………………………….… .-0.3V to +35V
DH_ to LX_ .................................-0.3V to [(V_BST_ - V_LX_) + 0.3V]
DL_ to PGND ..............................................-0.3V to (V_DD + 0.3V)
BST_ to LX_ ..............................................................-0.3V to +6V
V_CC to SGND............................................................-0.3V to +6V
V_DD to PGND............................................................-0.3V to +6V
SGND to PGND .....................................................-0.3V to +0.3V
All Other Pins to SGND...............................-0.3V to (V_CC + 0.3V)
Continuous Power Dissipation (T_A = +70°C)
44-Pin MQFP (derate 12.7mW/°C above +70°C).......1013mW
44-Pin Thin QFN (derate 27.0mW/°C
above +70°C) ...........................................................2162.2mW
Package Thermal Resistance, θ_JC (Thin QFN only) ........+2°C/W
Operating Temperature Range ...........................-40°C to +85°C
Maximum Junction Temperature .....................................+150°C
Storage Temperature Range .............................-60°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(V_CC = V_DD = +5V, circuit of Figure 1, T_A = -40°C to +85°C, unless otherwise noted. Typical specifications are at T_A = +25°C.) (Note 1)
PARAMETER
SYSTEM SPECIFICATIONS
SYMBOL
CONDITIONS
Input Voltage Range
V_IN
Short IN and V_CC together for 5V input
operation
Quiescent Supply Current
I_Q
Efficiency
η
STARTUP/INTERNAL REGULATOR
V_CC Undervoltage Lockout
UVLO
V_CC Undervoltage Lockout
Hysteresis
EN = V_CC or SGND, VID inputs
unconnected
I_LOAD = 52A (26A per phase)
V_CC rising
V_CC Output Accuracy
V_IN = 8V to 28V, I_SOURCE = 0 to 80mA
V_OUT/ADAPTIVE VOLTAGE POSITIONING (AVP)
Nominal Output Voltage
Accuracy (VID Setting)
R_REG = R_F = 100kΩ, R_IN = 1kΩ, no load,
Figure 3
V_IN = V_CC = 4.75V to 5.5V, or V_IN = 8V to
28V, R_REG = R_F = 100kΩ, R_IN = 1kΩ,
no load, Figure 3
MIN TYP MAX UNITS
8
28
V
4.75
5.5
4
6
mA
90
%
4.0
4.15
4.5
V
200
mV
4.85
5.1
5.30
V
-0.8
+0.8
%
-1
+1
Maximum REG Loading
REG Accuracy (Voltage
Positioning)
Maximum CNTR Loading
Center Voltage Set-Point
Accuracy (Note 2)
MOSFET DRIVERS
Output Driver Impedance
Output Driver Peak Source/Sink
Current
I_{REG_MAX}
d (∆V_OUT) ^{TA = 0°C to +85°C}
T_A = -40°C to +85°C
I_{CNTR_MAX}
d (∆V_CNTR)
T_A = 0°C to +85°C
T_A = -40°C to +85°C
R_ON Low or high output
I_DH_, I_DL_
50
µA
-3
+3
%
-5
+5
50
µA
-3
+3
%
-5
+5
1
3
Ω
4
A
2 _______________________________________________________________________________________